Trace number 3702685

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerobjective functionCPU timeWall clock time
npSolver inc-topdown-quickBoundOPT18 0.157975 0.160332

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/
miplib/normalized-mps-v2-20-10-stein27.opb
MD5SUMad4e33c2a351634ad3ada1c06c0b1126
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark18
Best CPU time to get the best result obtained on this benchmark0.150976
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 18
Optimality of the best value was proved YES
Number of variables27
Total number of constraints118
Number of constraints which are clauses117
Number of constraints which are cardinality constraints (but not clauses)1
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint3
Maximum length of a constraint27
Number of terms in the objective function 27
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 27
Number of bits of the sum of numbers in the objective function 5
Biggest number in a constraint 13
Number of bits of the biggest number in a constraint 4
Biggest sum of numbers in a constraint 40
Number of bits of the biggest sum of numbers6
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data 

0.00/0.00	c run inc solver
0.00/0.00	c [INC SYSTEM] run initial solver
0.00/0.00	c [INC SYSTEM] preprocess with white file
0.00/0.01	c [INC SYSTEM] finished preprocessing in 0 s
0.00/0.01	c [INC SYSTEM] execute solver
0.00/0.01	c [INC SEARCH] formula is SAT
0.00/0.01	c [INC SYSTEM] solved the initial formula
0.00/0.01	c model valid
0.00/0.01	c current solution ok
0.00/0.01	o 19
0.00/0.01	c starting approximation
0.00/0.01	c factor = 1
0.00/0.01	c can not find a suitable factor, leaving approximation
0.00/0.01	c finished approximation
0.00/0.01	c [INC SYSTEM] there exists a inc, kill it!
0.00/0.01	c write failed with 2
0.00/0.01	c [INC SEARCH] iteration: 0
0.00/0.01	c [INC BOUNDS] best value:19 search for 18
0.00/0.01	c [INC SYSTEM] create new solver instance
0.00/0.01	c [INC] encode full formula
0.00/0.01	c (debug) using card networks
0.00/0.01	c set iterative enc to: card
0.00/0.01	c set iterative enc to: none
0.00/0.01	c [INC SEARCH] isOptimum variable: 0
0.00/0.01	c formula is SAT
0.00/0.01	c [INC SEARCH] copied best model
0.00/0.01	c [INC SEARCH] sat variable: 1 optimum/unsat variable: 0
0.00/0.01	c model valid
0.00/0.01	c current solution ok
0.00/0.01	o 18
0.00/0.01	c [INC SEARCH] iteration: 1
0.00/0.01	c [INC BOUNDS] best value:18 search for 17
0.00/0.01	c [INC SYSTEM] there exists a inc, kill it!
0.00/0.01	c write failed with 2
0.00/0.02	c [INC SYSTEM] create new solver instance
0.00/0.02	c [INC] encode full formula
0.00/0.02	c (debug) using card networks
0.00/0.02	c set iterative enc to: card
0.00/0.02	c set iterative enc to: none
0.00/0.02	c [INC SEARCH] isOptimum variable: 0
0.00/0.15	c [INC SEARCH] formula is UNSAT
0.00/0.15	c [INC SYSTEM] there exists a inc, kill it!
0.00/0.15	c write failed with -1
0.00/0.15	c [INC SEARCH] sat variable: 0 optimum/unsat variable: 1
0.00/0.15	c [INC SEARCH] found optimum
0.00/0.15	c display solution
0.00/0.15	s OPTIMUM FOUND
0.00/0.15	v -x1 x2 x3 x4 x5 x6 x7 x8 x9 x10 -x11 -x12 x13 x14 x15 x16 -x17 -x18 -x19 -x20 -x21 x22 x23 x24 -x25 x26 x27

Verifier Data 

OK	18

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.1 (svn: 989)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3702685-1338049970/watcher-3702685-1338049970 -o /tmp/evaluation-result-3702685-1338049970/solver-3702685-1338049970 -C 1800 -W 1900 -M 15500 HOME/npSolver-pbo-Itdqb.sh HOME/instance-3702685-1338049970.opb 1602993600 HOME HOME 

running on 4 cores: 0,2,4,6

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1900 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.93 1.23 1.27 2/179 8879
/proc/meminfo: memFree=28539376/32873844 swapFree=7620/7620
[pid=8879] ppid=8877 vsize=9148 CPUtime=0 cores=0,2,4,6
/proc/8879/stat : 8879 (npSolver-pbo-It) S 8877 8879 3948 0 -1 4202496 359 0 0 0 0 0 0 0 20 0 1 0 271121406 9367552 275 33554432000 4194304 5064252 140734535271152 140734535270064 254750123598 0 65536 4100 65538 18446744071579302229 0 0 17 0 0 0 0 0 0
/proc/8879/statm: 2287 275 233 213 0 72 0

[startup+0.0319771 s]
/proc/loadavg: 1.93 1.23 1.27 2/179 8879
/proc/meminfo: memFree=28539376/32873844 swapFree=7620/7620
[pid=8879] ppid=8877 vsize=9148 CPUtime=0 cores=0,2,4,6
/proc/8879/stat : 8879 (npSolver-pbo-It) S 8877 8879 3948 0 -1 4202496 359 0 0 0 0 0 0 0 20 0 1 0 271121406 9367552 275 33554432000 4194304 5064252 140734535271152 140734535270064 254750123598 0 65536 4100 65538 18446744071579302229 0 0 17 0 0 0 0 0 0
/proc/8879/statm: 2287 275 233 213 0 72 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 9148

[startup+0.100143 s]
/proc/loadavg: 1.93 1.23 1.27 2/179 8879
/proc/meminfo: memFree=28539376/32873844 swapFree=7620/7620
[pid=8879] ppid=8877 vsize=9148 CPUtime=0 cores=0,2,4,6
/proc/8879/stat : 8879 (npSolver-pbo-It) S 8877 8879 3948 0 -1 4202496 359 0 0 0 0 0 0 0 20 0 1 0 271121406 9367552 275 33554432000 4194304 5064252 140734535271152 140734535270064 254750123598 0 65536 4100 65538 18446744071579302229 0 0 17 0 0 0 0 0 0
/proc/8879/statm: 2287 275 233 213 0 72 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 9148

Solver just ended. Dumping a history of the last processes samples

Child status: 0
Real time (s): 0.160332
CPU time (s): 0.157975
CPU user time (s): 0.142978
CPU system time (s): 0.014997
CPU usage (%): 98.53
Max. virtual memory (cumulated for all children) (KiB): 9148

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.142978
system time used= 0.014997
maximum resident set size= 4260
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5700
page faults= 0
swaps= 0
block input operations= 0
block output operations= 144
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 29
involuntary context switches= 20

runsolver used 0.000999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node145 at 2012-05-26 18:32:50
IDJOB=3702685
IDBENCH=1861
IDSOLVER=2278
FILE ID=node145/3702685-1338049970
RUNJOBID= node145-1338049919-8681
PBS_JOBID= 14624330
Free space on /tmp= 71472 MiB

SOLVER NAME= npSolver inc-topdown-quickBound
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-stein27.opb
COMMAND LINE= DIR/npSolver-pbo-Itdqb.sh BENCHNAME RANDOMSEED TMPDIR DIR
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3702685-1338049970/watcher-3702685-1338049970 -o /tmp/evaluation-result-3702685-1338049970/solver-3702685-1338049970 -C 1800 -W 1900 -M 15500  HOME/npSolver-pbo-Itdqb.sh HOME/instance-3702685-1338049970.opb 1602993600 HOME HOME

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= ad4e33c2a351634ad3ada1c06c0b1126
RANDOM SEED=1602993600

node145.alineos.net Linux 2.6.32-71.29.1.el6.x86_64 #1 SMP Mon Jun 27 19:49:27 BST 2011

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2667.149
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
initial apicid	: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5334.29
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2667.149
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
initial apicid	: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2667.149
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
initial apicid	: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5313.38
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2667.149
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
initial apicid	: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2667.149
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
initial apicid	: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2667.149
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
initial apicid	: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2667.149
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
initial apicid	: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2667.149
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
initial apicid	: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.89
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:       32873844 kB
MemFree:        28539384 kB
Buffers:          263616 kB
Cached:          3149752 kB
SwapCached:            0 kB
Active:           808472 kB
Inactive:        2743488 kB
Active(anon):     141528 kB
Inactive(anon):        0 kB
Active(file):     666944 kB
Inactive(file):  2743488 kB
Unevictable:        7620 kB
Mlocked:            7620 kB
SwapTotal:      67108856 kB
SwapFree:       67108856 kB
Dirty:              9936 kB
Writeback:             0 kB
AnonPages:        142736 kB
Mapped:            15524 kB
Shmem:               200 kB
Slab:             642748 kB
SReclaimable:      84320 kB
SUnreclaim:       558428 kB
KernelStack:        1520 kB
PageTables:         4452 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83545776 kB
Committed_AS:     265456 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      346368 kB
VmallocChunk:   34341987984 kB
HardwareCorrupted:     0 kB
AnonHugePages:     16384 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:        7872 kB
DirectMap2M:    33538048 kB

Free space on /tmp at the end= 71464 MiB
End job on node145 at 2012-05-26 18:32:51