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 in four parts:
  1. 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 provide some useful information on the computer.
  2. 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 !
  3. 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 1200 seconds. 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 1230 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (900Mb).
    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.
  4. 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.

General information on the benchmark

Namemps-v2-13-7/MIPLIB/miplib2003/normalized-mps-v2-13-7-a1c1s1.opb
MD5SUM60a85eb68562d07c063b16fa35f27512
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 27456
Biggest coefficient in the objective function 1310720000000
Number of bits for the biggest coefficient in the objective function 41
Sum of the numbers in the objective function 254165973806800
Number of bits of the sum of numbers in the objective function 48
Biggest number in a constraint 1310720000000
Number of bits of the biggest number in a constraint 41
Biggest sum of numbers in a constraint 254165973806800
Number of bits of the biggest sum of numbers48
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables71616
Total number of constraints3312
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints3312
Minimum length of a constraint33
Maximum length of a constraint545

Trace number 10441

Launcher Data

LAUNCH ON wulflinc21 THE 2005-09-23 18:20:07 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9197 boxname=wulflinc21 idbench=993 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  60a85eb68562d07c063b16fa35f27512  /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-13-7-a1c1s1.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-13-7-a1c1s1.opb
IDLAUNCH: 9197
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.188
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.188
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        908496 kB
Buffers:         14484 kB
Cached:          93364 kB
SwapCached:          0 kB
Active:          49756 kB
Inactive:        61004 kB
HighTotal:      131008 kB
HighFree:        39620 kB
LowTotal:       903652 kB
LowFree:        868876 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             9872 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 18:21:50 (client local time) WITH STATUS 0 IN 101.159 SECONDS
stats: 9197 7 101.159 0

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
s UNKNOWN

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/11007/stat): 11007 (pb2sat) R 11006 11007 4059 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22297684 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/11007/statm): 373 2 364 364 0 9 0
[pid=11007] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-13-7-a1c1s1.opb

[startup+10.0014 s]
Raw data (loadavg): 0.94 1.00 0.93 2/55 11007
Raw data (/proc/11007/stat): 11007 (pb2sat) R 11006 11007 4059 0 -1 0 2633 0 0 0 991 7 0 0 25 0 1 0 22297684 9773056 1945 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11007/statm): 2386 1945 364 364 0 2022 0
[pid=11007] vsize: 9544
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 9544

[startup+20.0021 s]
Raw data (loadavg): 0.95 1.00 0.93 2/55 11007
Raw data (/proc/11007/stat): 11007 (pb2sat) R 11006 11007 4059 0 -1 0 27451 0 0 0 1929 67 0 0 25 0 1 0 22297684 84484096 16193 4294967295 134512640 135987407 3221224560 3221201696 134856490 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11007/statm): 20626 16193 364 364 0 20262 0
[pid=11007] vsize: 82504
Current children cumulated CPU time (s) 19.96
Current children cumulated vsize (Kb) 82504

[startup+30.0028 s]
Raw data (loadavg): 0.96 1.00 0.93 2/55 11007
Raw data (/proc/11007/stat): 11007 (pb2sat) R 11006 11007 4059 0 -1 0 55915 0 0 0 2864 130 0 0 25 0 1 0 22297684 164495360 33384 4294967295 134512640 135987407 3221224560 3221215124 135499908 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11007/statm): 40160 33384 364 364 0 39796 0
[pid=11007] vsize: 160640
Current children cumulated CPU time (s) 29.94
Current children cumulated vsize (Kb) 160640

[startup+40.0034 s]
Raw data (loadavg): 0.96 1.00 0.93 2/55 11007
Raw data (/proc/11007/stat): 11007 (pb2sat) R 11006 11007 4059 0 -1 0 96518 0 0 0 3775 217 0 0 25 0 1 0 22297684 281636864 51734 4294967295 134512640 135987407 3221224560 3221221904 134612784 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11007/statm): 68759 51734 364 364 0 68395 0
[pid=11007] vsize: 275036
Current children cumulated CPU time (s) 39.92
Current children cumulated vsize (Kb) 275036

[startup+50.0041 s]
Raw data (loadavg): 0.97 1.00 0.93 2/55 11007
Raw data (/proc/11007/stat): 11007 (pb2sat) R 11006 11007 4059 0 -1 0 113678 0 0 0 4731 258 0 0 25 0 1 0 22297684 332222464 68655 4294967295 134512640 135987407 3221224560 3221114512 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11007/statm): 81109 68655 364 364 0 80745 0
[pid=11007] vsize: 324436
Current children cumulated CPU time (s) 49.89
Current children cumulated vsize (Kb) 324436

[startup+60.0038 s]
Raw data (loadavg): 0.97 1.00 0.93 2/55 11007
Raw data (/proc/11007/stat): 11007 (pb2sat) R 11006 11007 4059 0 -1 0 157918 0 0 0 5636 347 0 0 25 0 1 0 22297684 470032384 93267 4294967295 134512640 135987407 3221224560 3221094384 134559106 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11007/statm): 114754 93267 364 364 0 114390 0
[pid=11007] vsize: 459016
Current children cumulated CPU time (s) 59.83
Current children cumulated vsize (Kb) 459016

[startup+70.0045 s]
Raw data (loadavg): 0.98 1.00 0.93 2/55 11007
Raw data (/proc/11007/stat): 11007 (pb2sat) R 11006 11007 4059 0 -1 0 195780 0 0 0 6557 427 0 0 25 0 1 0 22297684 575156224 106336 4294967295 134512640 135987407 3221224560 3221221136 134636919 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11007/statm): 140419 106336 364 364 0 140055 0
[pid=11007] vsize: 561676
Current children cumulated CPU time (s) 69.84
Current children cumulated vsize (Kb) 561676

[startup+80.0052 s]
Raw data (loadavg): 0.98 1.00 0.93 2/55 11007
Raw data (/proc/11007/stat): 11007 (pb2sat) R 11006 11007 4059 0 -1 0 209150 0 0 0 7524 459 0 0 25 0 1 0 22297684 611819520 119482 4294967295 134512640 135987407 3221224560 3221137700 135479922 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11007/statm): 149370 119482 364 364 0 149006 0
[pid=11007] vsize: 597480
Current children cumulated CPU time (s) 79.83
Current children cumulated vsize (Kb) 597480

[startup+90.0059 s]
Raw data (loadavg): 0.98 1.00 0.93 2/55 11007
Raw data (/proc/11007/stat): 11007 (pb2sat) R 11006 11007 4059 0 -1 0 224556 0 0 0 8495 488 0 0 25 0 1 0 22297684 616009728 134632 4294967295 134512640 135987407 3221224560 3221143712 134640499 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11007/statm): 150393 134632 364 364 0 150029 0
[pid=11007] vsize: 601572
Current children cumulated CPU time (s) 89.83
Current children cumulated vsize (Kb) 601572

[startup+100.007 s]
Raw data (loadavg): 0.98 1.00 0.93 2/55 11007
Raw data (/proc/11007/stat): 11007 (pb2sat) R 11006 11007 4059 0 -1 0 237800 0 0 0 9462 519 0 0 25 0 1 0 22297684 676073472 147683 4294967295 134512640 135987407 3221224560 3221161020 135499891 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11007/statm): 165057 147683 364 364 0 164693 0
[pid=11007] vsize: 660228
Current children cumulated CPU time (s) 99.81
Current children cumulated vsize (Kb) 660228



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+100.941 s]
Raw data (loadavg): 0.98 1.00 0.93 1/55 11007
Raw data (/proc/11007/stat): 11007 (pb2sat) T 11006 11007 4059 0 -1 0 239637 0 0 0 9551 524 0 0 25 0 1 0 22297684 963182592 149496 4294967295 134512640 135987407 3221224560 3221145456 135544035 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/11007/statm): 235152 149496 364 364 0 234788 0
[pid=11007] vsize: 940608
Current children cumulated CPU time (s) 100.75
Current children cumulated vsize (Kb) 940608

Sending SIGTERM to -11007
Sleeping 2 seconds
Sending SIGKILL to -11007
One traced child (pid=11007) ended because it received signal 9 (SIGKILL)
All traced children have exited ! Game is over.

Child ended because it received signal 9 (SIGKILL)
Real time (s): 103.252
CPU time (s): 101.159
CPU user time (s): 95.6085
CPU system time (s): 5.55016
CPU usage (%): 97.9722
Max. virtual memory (cumulated for all children) (Kb): 940608

Verifier Data

ERROR: no interpretation found !