Trace number 3258399

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 NameAnswerCPU timeWall clock time
MPhaseSAT64 2011-03-03? 6.39103 6.39732

General information on the benchmark

NameCRAFTED/rbsat/random/forced/
rbsat-v945c61409gyes5.cnf
MD5SUMccc3b90e7796ba48b01939580fe6357c
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark4.34434
Satisfiable
(Un)Satisfiability was proved
Number of variables945
Number of clauses61409
Sum of the clauses size123673
Maximum clause length21
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 261364
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 545

Solver Data 

6.28/6.39	c MPhaseSAT64 version 402 by Jingchao Chen,  April 1,2011
6.28/6.39	c input CNF file=HOME/instance-3258399-1303472996.cnf 
6.28/6.39	c Clause#=61409  var#=945  ratio=64 
6.28/6.39	c Simplified clause#=58676 
6.28/6.39	c XOR_varElimination deleted var#=0 clauses#=58676 
6.28/6.39	c inative var#=0 
6.28/6.39	c free var#=945  
6.28/6.39	c solving by ALO selection 
6.28/6.39	c 
6.28/6.39	c 
6.28/6.39	c SEGMENTATION FAULT 
6.28/6.39	c 
6.28/6.39	s UNKNOWN
6.28/6.39	c

Verifier Data 

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer: UNKNOWN

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

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-3258399-1303472996/watcher-3258399-1303472996 -o /tmp/evaluation-result-3258399-1303472996/solver-3258399-1303472996 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3258399-1303472996.cnf 

running on 2 cores: 0,2

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 7864320 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 7915520 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.19 1.81 2.34 4/185 13398
/proc/meminfo: memFree=16219484/32951124 swapFree=67111528/67111528
[pid=13398] ppid=13396 vsize=4748 CPUtime=0 cores=0,2
/proc/13398/stat : 13398 (MPhaseSAT64) R 13396 13398 12632 0 -1 4202496 335 0 0 0 0 0 0 0 21 0 1 0 458897376 4861952 276 33554432000 134512640 134761588 4293164720 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/13398/statm: 1187 276 225 61 0 490 0

[startup+0.073555 s]
/proc/loadavg: 2.19 1.81 2.34 4/185 13398
/proc/meminfo: memFree=16219484/32951124 swapFree=67111528/67111528
[pid=13398] ppid=13396 vsize=4944 CPUtime=0.07 cores=0,2
/proc/13398/stat : 13398 (MPhaseSAT64) R 13396 13398 12632 0 -1 4202496 987 0 0 0 7 0 0 0 22 0 1 0 458897376 5062656 741 33554432000 134512640 134761588 4293164720 18446744073709551615 134559293 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/13398/statm: 1236 741 238 61 0 539 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 4944

[startup+0.100573 s]
/proc/loadavg: 2.19 1.81 2.34 4/185 13398
/proc/meminfo: memFree=16219484/32951124 swapFree=67111528/67111528
[pid=13398] ppid=13396 vsize=4728 CPUtime=0.09 cores=0,2
/proc/13398/stat : 13398 (MPhaseSAT64) R 13396 13398 12632 0 -1 4202496 1162 0 0 0 9 0 0 0 22 0 1 0 458897376 4841472 714 33554432000 134512640 134761588 4293164720 18446744073709551615 134552432 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/13398/statm: 1182 714 240 61 0 485 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4728

[startup+0.30054 s]
/proc/loadavg: 2.19 1.81 2.34 4/185 13398
/proc/meminfo: memFree=16219484/32951124 swapFree=67111528/67111528
[pid=13398] ppid=13396 vsize=8244 CPUtime=0.29 cores=0,2
/proc/13398/stat : 13398 (MPhaseSAT64) R 13396 13398 12632 0 -1 4202496 2326 0 0 0 29 0 0 0 22 0 1 0 458897376 8441856 1621 33554432000 134512640 134761588 4293164720 18446744073709551615 134614436 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/13398/statm: 2061 1621 269 61 0 1364 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8244

[startup+0.700462 s]
/proc/loadavg: 2.19 1.81 2.34 4/185 13398
/proc/meminfo: memFree=16219484/32951124 swapFree=67111528/67111528
[pid=13398] ppid=13396 vsize=9236 CPUtime=0.69 cores=0,2
/proc/13398/stat : 13398 (MPhaseSAT64) R 13396 13398 12632 0 -1 4202496 2574 0 0 0 69 0 0 0 24 0 1 0 458897376 9457664 1869 33554432000 134512640 134761588 4293164720 18446744073709551615 134616730 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/13398/statm: 2309 1869 269 61 0 1612 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 9236

[startup+1.50031 s]
/proc/loadavg: 2.19 1.81 2.34 5/190 13404
/proc/meminfo: memFree=16199496/32951124 swapFree=67111528/67111528
[pid=13398] ppid=13396 vsize=9236 CPUtime=1.49 cores=0,2
/proc/13398/stat : 13398 (MPhaseSAT64) R 13396 13398 12632 0 -1 4202496 2574 0 0 0 149 0 0 0 25 0 1 0 458897376 9457664 1869 33554432000 134512640 134761588 4293164720 18446744073709551615 134614816 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/13398/statm: 2309 1869 269 61 0 1612 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 9236

[startup+3.10101 s]
/proc/loadavg: 2.19 1.81 2.34 5/190 13404
/proc/meminfo: memFree=16196168/32951124 swapFree=67111528/67111528
[pid=13398] ppid=13396 vsize=8300 CPUtime=3.09 cores=0,2
/proc/13398/stat : 13398 (MPhaseSAT64) R 13396 13398 12632 0 -1 4202496 3355 0 0 0 309 0 0 0 25 0 1 0 458897376 8499200 1641 33554432000 134512640 134761588 4293164720 18446744073709551615 134614221 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/13398/statm: 2075 1641 274 61 0 1378 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 8300

[startup+6.30044 s]
/proc/loadavg: 2.34 1.85 2.35 5/190 13404
/proc/meminfo: memFree=16193636/32951124 swapFree=67111528/67111528
[pid=13398] ppid=13396 vsize=11124 CPUtime=6.28 cores=0,2
/proc/13398/stat : 13398 (MPhaseSAT64) R 13396 13398 12632 0 -1 4202496 4121 0 0 0 628 0 0 0 25 0 1 0 458897376 11390976 2231 33554432000 134512640 134761588 4293164720 18446744073709551615 134672357 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/13398/statm: 2781 2231 275 61 0 2084 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 11124

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

Child status: 0
Real time (s): 6.39732
CPU time (s): 6.39103
CPU user time (s): 6.38203
CPU system time (s): 0.008998
CPU usage (%): 99.9016
Max. virtual memory (cumulated for all children) (KiB): 11124

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.38203
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4124
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 22
involuntary context switches= 84

runsolver used 0.007998 second user time and 0.027995 second system time

The end

Launcher Data 

Begin job on node137 at 2011-04-22 13:49:57
IDJOB=3258399
IDBENCH=71354
IDSOLVER=1521
FILE ID=node137/3258399-1303472996
RUNJOBID= node137-1303472967-13279
PBS_JOBID= 13107203
Free space on /tmp= 71380 MiB

SOLVER NAME= MPhaseSAT64 2011-03-03
BENCH NAME= SAT09/CRAFTED/rbsat/random/forced/rbsat-v945c61409gyes5.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3258399-1303472996/watcher-3258399-1303472996 -o /tmp/evaluation-result-3258399-1303472996/solver-3258399-1303472996 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3258399-1303472996.cnf

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= ccc3b90e7796ba48b01939580fe6357c
RANDOM SEED=1610138281

node137.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/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		: 2666.844
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.68
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.844
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.844
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.844
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.844
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.844
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.844
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.844
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      16219764 kB
Buffers:       1210020 kB
Cached:       14856592 kB
SwapCached:          0 kB
Active:        9362816 kB
Inactive:      6812300 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      16219764 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           12640 kB
Writeback:           0 kB
AnonPages:      108796 kB
Mapped:          16408 kB
Slab:           492004 kB
PageTables:       5384 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   276180 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 71380 MiB
End job on node137 at 2011-04-22 13:50:03