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-noswot.opb
MD5SUM64bde1e66dd22efb34c363a61fb9a0ef
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -41
Optimality of the best value was proved YES
Number of terms in the objective function 425
Biggest coefficient in the objective function 65536
Number of bits for the biggest coefficient in the objective function 17
Sum of the numbers in the objective function 3276775
Number of bits of the sum of numbers in the objective function 22
Biggest number in a constraint 2275540926464
Number of bits of the biggest number in a constraint 42
Biggest sum of numbers in a constraint 4715313641679
Number of bits of the biggest sum of numbers43
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark171.787
Number of variables1060
Total number of constraints282
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)75
Number of constraints which are nor clauses,nor cardinality constraints207
Minimum length of a constraint1
Maximum length of a constraint425

Trace number 10421

Launcher Data

LAUNCH ON wulflinc13 THE 2005-09-23 18:15:02 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9174 boxname=wulflinc13 idbench=970 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  64bde1e66dd22efb34c363a61fb9a0ef  /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-13-7-noswot.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-13-7-noswot.opb
IDLAUNCH: 9174
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.180
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	: 2
cpu MHz		: 451.180
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:        967040 kB
Buffers:           812 kB
Cached:          49984 kB
SwapCached:          0 kB
Active:          15496 kB
Inactive:        38204 kB
HighTotal:      131008 kB
HighFree:        76748 kB
LowTotal:       903652 kB
LowFree:        890292 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8372 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 18:16:42 (client local time) WITH STATUS 0 IN 97.8921 SECONDS
stats: 9174 7 97.8921 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/9519/stat): 9519 (pb2sat) R 9518 9519 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22268056 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/9519/statm): 373 2 364 364 0 9 0
[pid=9519] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-13-7-noswot.opb

[startup+10.0022 s]
Raw data (loadavg): 0.91 0.95 0.92 2/55 9519
Raw data (/proc/9519/stat): 9519 (pb2sat) R 9518 9519 4060 0 -1 0 31466 0 0 0 923 71 0 0 25 0 1 0 22268056 99184640 20343 4294967295 134512640 135987407 3221224560 3221205792 134877901 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9519/statm): 24215 20343 364 364 0 23851 0
[pid=9519] vsize: 96860
Current children cumulated CPU time (s) 9.94
Current children cumulated vsize (Kb) 96860

[startup+20.0029 s]
Raw data (loadavg): 0.92 0.95 0.92 2/55 9519
Raw data (/proc/9519/stat): 9519 (pb2sat) R 9518 9519 4060 0 -1 0 57442 0 0 0 1869 124 0 0 25 0 1 0 22268056 178679808 35104 4294967295 134512640 135987407 3221224560 3221203120 134635423 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9519/statm): 43623 35104 364 364 0 43259 0
[pid=9519] vsize: 174492
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 174492

[startup+30.0025 s]
Raw data (loadavg): 0.93 0.95 0.92 2/55 9519
Raw data (/proc/9519/stat): 9519 (pb2sat) R 9518 9519 4060 0 -1 0 96049 0 0 0 2789 201 0 0 25 0 1 0 22268056 296570880 51510 4294967295 134512640 135987407 3221224560 3221202192 134803360 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9519/statm): 72405 51510 364 364 0 72041 0
[pid=9519] vsize: 289620
Current children cumulated CPU time (s) 29.9
Current children cumulated vsize (Kb) 289620

[startup+40.0032 s]
Raw data (loadavg): 0.94 0.95 0.92 2/55 9519
Raw data (/proc/9519/stat): 9519 (pb2sat) R 9518 9519 4060 0 -1 0 108508 0 0 0 3765 225 0 0 25 0 1 0 22268056 335175680 63745 4294967295 134512640 135987407 3221224560 3221205188 134864168 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9519/statm): 81830 63745 364 364 0 81466 0
[pid=9519] vsize: 327320
Current children cumulated CPU time (s) 39.9
Current children cumulated vsize (Kb) 327320

[startup+50.0038 s]
Raw data (loadavg): 0.95 0.95 0.92 2/55 9519
Raw data (/proc/9519/stat): 9519 (pb2sat) R 9518 9519 4060 0 -1 0 149331 0 0 0 4685 301 0 0 25 0 1 0 22268056 530448384 103356 4294967295 134512640 135987407 3221224560 3221206480 134861463 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9519/statm): 129504 103356 364 364 0 129140 0
[pid=9519] vsize: 518016
Current children cumulated CPU time (s) 49.86
Current children cumulated vsize (Kb) 518016

[startup+60.0045 s]
Raw data (loadavg): 0.96 0.95 0.92 2/55 9519
Raw data (/proc/9519/stat): 9519 (pb2sat) R 9518 9519 4060 0 -1 0 185059 0 0 0 5613 373 0 0 25 0 1 0 22268056 670748672 120463 4294967295 134512640 135987407 3221224560 3221202928 134887487 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9519/statm): 163757 120463 364 364 0 163393 0
[pid=9519] vsize: 655028
Current children cumulated CPU time (s) 59.86
Current children cumulated vsize (Kb) 655028

[startup+70.0052 s]
Raw data (loadavg): 0.97 0.96 0.92 2/55 9519
Raw data (/proc/9519/stat): 9519 (pb2sat) R 9518 9519 4060 0 -1 0 197377 0 0 0 6581 405 0 0 25 0 1 0 22268056 606605312 107993 4294967295 134512640 135987407 3221224560 3221207056 134877726 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9519/statm): 148097 107993 364 364 0 147733 0
[pid=9519] vsize: 592388
Current children cumulated CPU time (s) 69.86
Current children cumulated vsize (Kb) 592388

[startup+80.0058 s]
Raw data (loadavg): 0.97 0.96 0.92 2/55 9519
Raw data (/proc/9519/stat): 9519 (pb2sat) R 9518 9519 4060 0 -1 0 211451 0 0 0 7554 431 0 0 25 0 1 0 22268056 612466688 121817 4294967295 134512640 135987407 3221224560 3221202880 134537496 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9519/statm): 149528 121817 364 364 0 149164 0
[pid=9519] vsize: 598112
Current children cumulated CPU time (s) 79.85
Current children cumulated vsize (Kb) 598112

[startup+90.0065 s]
Raw data (loadavg): 0.97 0.96 0.92 2/55 9519
Raw data (/proc/9519/stat): 9519 (pb2sat) R 9518 9519 4060 0 -1 0 224573 0 0 0 8529 456 0 0 25 0 1 0 22268056 616390656 134698 4294967295 134512640 135987407 3221224560 3221207584 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9519/statm): 150486 134698 364 364 0 150122 0
[pid=9519] vsize: 601944
Current children cumulated CPU time (s) 89.85
Current children cumulated vsize (Kb) 601944



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+97.7385 s]
Raw data (loadavg): 0.98 0.96 0.92 1/55 9519
Raw data (/proc/9519/stat): 9519 (pb2sat) T 9518 9519 4060 0 -1 0 256595 0 0 0 9239 515 0 0 25 0 1 0 22268056 943788032 165760 4294967295 134512640 135987407 3221224560 3221209180 135635874 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/9519/statm): 230417 165760 364 364 0 230053 0
[pid=9519] vsize: 921668
Current children cumulated CPU time (s) 97.54
Current children cumulated vsize (Kb) 921668

Sending SIGTERM to -9519
Sleeping 2 seconds
Sending SIGKILL to -9519

[startup+100.008 s]
Raw data (loadavg): 0.98 0.96 0.92 2/55 9520
Raw data (/proc/9519/stat): 9519 (pb2sat) R 9518 9519 4060 0 -1 1028 256596 0 0 0 9239 542 0 0 18 0 1 0 22268056 0 0 4294967295 0 0 0 0 0 0 16384 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9519/statm): 0 0 0 0 0 0 0
[pid=9519] vsize: 0
Current children cumulated CPU time (s) 97.81
Current children cumulated vsize (Kb) 0
One traced child (pid=9519) 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): 100.084
CPU time (s): 97.8921
CPU user time (s): 92.396
CPU system time (s): 5.49616
CPU usage (%): 97.81
Max. virtual memory (cumulated for all children) (Kb): 921668

Verifier Data

ERROR: no interpretation found !