Trace number 3445675

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
MPhaseSAT 2011-02-15SAT 1.22581 1.2267

General information on the benchmark

Namecrafted/spence/sgen/
sgen3-n160-s40283905-sat.cnf
MD5SUM8e3c134eb643f2d9a45c884774c054a8
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.186971
Satisfiable
(Un)Satisfiability was proved
Number of variables160
Number of clauses384
Sum of the clauses size960
Maximum clause length5
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2320
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 564
Number of clauses of size over 50

Solver Data 

1.19/1.22	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
1.19/1.22	c input CNF file=HOME/instance-3445675-1306971898.cnf 
1.19/1.22	c Clause#=384  var#=160  ratio=2 
1.19/1.22	c Simplified clause#=384 
1.19/1.22	c XOR_varElimination deleted var#=0 clauses#=384 
1.19/1.22	c inative var#=0 
1.19/1.22	c free var#=160  
1.19/1.22	c local search on 
1.19/1.22	c A solution found by local search 
1.19/1.22	c unfixed var#=0 var#=160 
1.19/1.22	c verified 
1.19/1.22	c 
1.19/1.22	s SATISFIABLE
1.19/1.22	v 1 -2 -3 -4 5 6 7 -8 9 -10 11 12 13 -14 -15 16 -17 -18 19 -20 -21 22 23 -24 25 26 27 -28 29 30 31 -32 -33 -34 -35 36 -37 38 39 -40 41 -42 43 -44 45 -46 47 48 49 -50 51 52 53 54 -55 56 57 -58 -59 60 61 -62 -63 64 65 -66 67 -68 69 70 -71 72 73 -74 75 -76 -77 -78 79 -80 81 -82 -83 84 -85 -86 -87 -88 89 -90 -91 -92 -93 94 95 96 97 98 -99 100 101 -102 -103 104 -105 -106 -107 -108 109 110 111 112 -113 -114 -115 116 -117 118 -119 -120 -121 -122 123 124 -125 -126 -127 -128 -129 130 131 132 -133 -134 -135 136 137 -138 139 140 -141 -142 -143 -144 -145 -146 -147 148 -149 -150 151 -152 -153 -154 -155 156 -157 -158 159 160 
1.19/1.22	v 0
1.19/1.22	c 
1.19/1.22	c  Running time=1.224813

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 977)

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-3445675-1306971898/watcher-3445675-1306971898 -o /tmp/evaluation-result-3445675-1306971898/solver-3445675-1306971898 -C 5000 -W 5100 -M 15500 MPhaseSAT HOME/instance-3445675-1306971898.cnf 

running on 4 cores: 1,3,5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 5100 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: 2.01 2.02 2.00 2/273 26240
/proc/meminfo: memFree=28358208/32951124 swapFree=55664332/67111528
[pid=26240] ppid=26238 vsize=3036 CPUtime=0 cores=1,3,5,7
/proc/26240/stat : 26240 (MPhaseSAT) R 26238 26240 25859 0 -1 4202496 383 0 0 0 0 0 0 0 25 0 1 0 808790501 3108864 324 33554432000 134512640 134731564 4291983456 18446744073709551615 11789820 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/26240/statm: 759 324 268 54 0 69 0

[startup+0.060665 s]
/proc/loadavg: 2.01 2.02 2.00 2/273 26240
/proc/meminfo: memFree=28358208/32951124 swapFree=55664332/67111528
[pid=26240] ppid=26238 vsize=3432 CPUtime=0.05 cores=1,3,5,7
/proc/26240/stat : 26240 (MPhaseSAT) R 26238 26240 25859 0 -1 4202496 462 0 0 0 5 0 0 0 25 0 1 0 808790501 3514368 403 33554432000 134512640 134731564 4291983456 18446744073709551615 134721839 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/26240/statm: 858 403 268 54 0 168 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 3432

[startup+0.100655 s]
/proc/loadavg: 2.01 2.02 2.00 2/273 26240
/proc/meminfo: memFree=28358208/32951124 swapFree=55664332/67111528
[pid=26240] ppid=26238 vsize=3432 CPUtime=0.09 cores=1,3,5,7
/proc/26240/stat : 26240 (MPhaseSAT) R 26238 26240 25859 0 -1 4202496 481 0 0 0 9 0 0 0 25 0 1 0 808790501 3514368 422 33554432000 134512640 134731564 4291983456 18446744073709551615 134717088 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/26240/statm: 858 422 268 54 0 168 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3432

[startup+0.300618 s]
/proc/loadavg: 2.01 2.02 2.00 2/273 26240
/proc/meminfo: memFree=28358208/32951124 swapFree=55664332/67111528
[pid=26240] ppid=26238 vsize=3828 CPUtime=0.29 cores=1,3,5,7
/proc/26240/stat : 26240 (MPhaseSAT) R 26238 26240 25859 0 -1 4202496 561 0 0 0 29 0 0 0 25 0 1 0 808790501 3919872 502 33554432000 134512640 134731564 4291983456 18446744073709551615 134722502 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/26240/statm: 957 502 268 54 0 267 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3828

[startup+0.700544 s]
/proc/loadavg: 2.01 2.02 2.00 2/273 26240
/proc/meminfo: memFree=28358208/32951124 swapFree=55664332/67111528
[pid=26240] ppid=26238 vsize=4092 CPUtime=0.69 cores=1,3,5,7
/proc/26240/stat : 26240 (MPhaseSAT) R 26238 26240 25859 0 -1 4202496 624 0 0 0 69 0 0 0 25 0 1 0 808790501 4190208 565 33554432000 134512640 134731564 4291983456 18446744073709551615 11530026 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/26240/statm: 1023 565 268 54 0 333 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4092

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

[startup+1.10947 s]
/proc/loadavg: 2.01 2.02 2.00 3/274 26241
/proc/meminfo: memFree=28356364/32951124 swapFree=55664332/67111528
[pid=26240] ppid=26238 vsize=4092 CPUtime=1.1 cores=1,3,5,7
/proc/26240/stat : 26240 (MPhaseSAT) R 26238 26240 25859 0 -1 4202496 637 0 0 0 110 0 0 0 25 0 1 0 808790501 4190208 578 33554432000 134512640 134731564 4291983456 18446744073709551615 134606235 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/26240/statm: 1023 578 271 54 0 333 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 4092

[startup+1.20045 s]
/proc/loadavg: 2.01 2.02 2.00 3/274 26241
/proc/meminfo: memFree=28356364/32951124 swapFree=55664332/67111528
[pid=26240] ppid=26238 vsize=4092 CPUtime=1.19 cores=1,3,5,7
/proc/26240/stat : 26240 (MPhaseSAT) R 26238 26240 25859 0 -1 4202496 637 0 0 0 119 0 0 0 25 0 1 0 808790501 4190208 578 33554432000 134512640 134731564 4291983456 18446744073709551615 134605060 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/26240/statm: 1023 578 271 54 0 333 0
Current children cumulated CPU time (s) 1.19
Current children cumulated vsize (KiB) 4092

Child status: 10
Real time (s): 1.2267
CPU time (s): 1.22581
CPU user time (s): 1.22481
CPU system time (s): 0.000999
CPU usage (%): 99.9275
Max. virtual memory (cumulated for all children) (KiB): 4092

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.22481
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 646
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= 6
involuntary context switches= 1

runsolver used 0.002999 second user time and 0.015997 second system time

The end

Launcher Data 

Begin job on node109 at 2011-06-02 01:44:58
IDJOB=3445675
IDBENCH=83138
IDSOLVER=1941
FILE ID=node109/3445675-1306971898
RUNJOBID= node109-1306966668-25878
PBS_JOBID= 13497662
Free space on /tmp= 73684 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/crafted/spence/sgen/sgen3-n160-s40283905-sat.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3445675-1306971898/watcher-3445675-1306971898 -o /tmp/evaluation-result-3445675-1306971898/solver-3445675-1306971898 -C 5000 -W 5100 -M 15500  MPhaseSAT HOME/instance-3445675-1306971898.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 8e3c134eb643f2d9a45c884774c054a8
RANDOM SEED=648974289

node109.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		: 2666.809
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	: 5333.61
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		: 2666.809
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		: 2666.809
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		: 2666.809
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	: 5332.75
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		: 2666.809
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		: 2666.809
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		: 2666.809
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	: 5332.82
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		: 2666.809
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:      28358364 kB
Buffers:        274276 kB
Cached:        2308568 kB
SwapCached:      10360 kB
Active:         949964 kB
Inactive:      3403400 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      28358364 kB
SwapTotal:    67111528 kB
SwapFree:     55664332 kB
Dirty:             352 kB
Writeback:           0 kB
AnonPages:     1766664 kB
Mapped:          17692 kB
Slab:           139896 kB
PageTables:      37108 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 30926400 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= 73684 MiB
End job on node109 at 2011-06-02 01:44:59