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/miplib3/normalized-mps-v2-13-7-arki001.opb
MD5SUM3d6c893445b9ca608a1c7ce6b2548e33
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 21
Biggest coefficient in the objective function 1048576
Number of bits for the biggest coefficient in the objective function 21
Sum of the numbers in the objective function 2097151
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 298325333312000
Number of bits of the biggest number in a constraint 49
Biggest sum of numbers in a constraint 648851746394616
Number of bits of the biggest sum of numbers50
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark7.27989
Number of variables6423
Total number of constraints2018
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)436
Number of constraints which are nor clauses,nor cardinality constraints1582
Minimum length of a constraint1
Maximum length of a constraint6404

Trace number 10444

Launcher Data

LAUNCH ON wulflinc26 THE 2005-09-23 18:21:52 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9204 boxname=wulflinc26 idbench=1000 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  3d6c893445b9ca608a1c7ce6b2548e33  /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-13-7-arki001.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-13-7-arki001.opb
IDLAUNCH: 9204
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.055
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		: 451.055
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	: 899.07

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        908552 kB
Buffers:         11964 kB
Cached:          96632 kB
SwapCached:          0 kB
Active:          46808 kB
Inactive:        64744 kB
HighTotal:      131008 kB
HighFree:        39340 kB
LowTotal:       903652 kB
LowFree:        869212 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8956 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 18:23:38 (client local time) WITH STATUS 1 IN 106.126 SECONDS
stats: 9204 7 106.126 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	St9bad_alloc

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/9245/stat): 9245 (pb2sat) R 9244 9245 4005 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22274338 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9245/statm): 373 2 364 364 0 9 0
[pid=9245] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-13-7-arki001.opb

[startup+10.0016 s]
Raw data (loadavg): 0.94 0.98 0.94 2/55 9245
Raw data (/proc/9245/stat): 9245 (pb2sat) R 9244 9245 4005 0 -1 0 28146 0 0 0 928 68 0 0 25 0 1 0 22274338 83705856 16986 4294967295 134512640 135987407 3221224560 3221148008 134828133 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9245/statm): 20436 16986 364 364 0 20072 0
[pid=9245] vsize: 81744
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 81744

[startup+20.0023 s]
Raw data (loadavg): 0.95 0.98 0.94 2/55 9245
Raw data (/proc/9245/stat): 9245 (pb2sat) R 9244 9245 4005 0 -1 0 58637 0 0 0 1865 128 0 0 25 0 1 0 22274338 179781632 36253 4294967295 134512640 135987407 3221224560 3221146632 134636945 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9245/statm): 43892 36253 364 364 0 43528 0
[pid=9245] vsize: 175568
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 175568

[startup+30.003 s]
Raw data (loadavg): 0.95 0.98 0.94 2/55 9245
Raw data (/proc/9245/stat): 9245 (pb2sat) R 9244 9245 4005 0 -1 0 100875 0 0 0 2782 209 0 0 25 0 1 0 22274338 312508416 56289 4294967295 134512640 135987407 3221224560 3221146800 134559419 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9245/statm): 76296 56289 364 364 0 75932 0
[pid=9245] vsize: 305184
Current children cumulated CPU time (s) 29.91
Current children cumulated vsize (Kb) 305184

[startup+40.0027 s]
Raw data (loadavg): 0.96 0.98 0.94 2/55 9245
Raw data (/proc/9245/stat): 9245 (pb2sat) R 9244 9245 4005 0 -1 0 118011 0 0 0 3749 240 0 0 25 0 1 0 22274338 370049024 73207 4294967295 134512640 135987407 3221224560 3221149816 134636909 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9245/statm): 90344 73207 364 364 0 89980 0
[pid=9245] vsize: 361376
Current children cumulated CPU time (s) 39.89
Current children cumulated vsize (Kb) 361376

[startup+50.0034 s]
Raw data (loadavg): 0.97 0.98 0.94 2/55 9245
Raw data (/proc/9245/stat): 9245 (pb2sat) R 9244 9245 4005 0 -1 0 159567 0 0 0 4665 319 0 0 25 0 1 0 22274338 578531328 113666 4294967295 134512640 135987407 3221224560 3221146624 134856394 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9245/statm): 141243 113666 364 364 0 140879 0
[pid=9245] vsize: 564972
Current children cumulated CPU time (s) 49.84
Current children cumulated vsize (Kb) 564972

[startup+60.0031 s]
Raw data (loadavg): 0.97 0.98 0.94 2/55 9245
Raw data (/proc/9245/stat): 9245 (pb2sat) R 9244 9245 4005 0 -1 0 201553 0 0 0 5578 405 0 0 25 0 1 0 22274338 633892864 111969 4294967295 134512640 135987407 3221224560 3221149040 135486762 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9245/statm): 154759 111969 364 364 0 154395 0
[pid=9245] vsize: 619036
Current children cumulated CPU time (s) 59.83
Current children cumulated vsize (Kb) 619036

[startup+70.0038 s]
Raw data (loadavg): 0.97 0.98 0.94 2/55 9245
Raw data (/proc/9245/stat): 9245 (pb2sat) R 9244 9245 4005 0 -1 0 217107 0 0 0 6549 432 0 0 25 0 1 0 22274338 688939008 127323 4294967295 134512640 135987407 3221224560 3221146576 134877726 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9245/statm): 168198 127323 364 364 0 167834 0
[pid=9245] vsize: 672792
Current children cumulated CPU time (s) 69.81
Current children cumulated vsize (Kb) 672792

[startup+80.0045 s]
Raw data (loadavg): 0.98 0.98 0.94 2/55 9245
Raw data (/proc/9245/stat): 9245 (pb2sat) R 9244 9245 4005 0 -1 0 234568 0 0 0 7513 467 0 0 25 0 1 0 22274338 713011200 144560 4294967295 134512640 135987407 3221224560 3221150492 134637836 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9245/statm): 174075 144560 364 364 0 173711 0
[pid=9245] vsize: 696300
Current children cumulated CPU time (s) 79.8
Current children cumulated vsize (Kb) 696300

[startup+90.0041 s]
Raw data (loadavg): 0.98 0.98 0.94 2/55 9245
Raw data (/proc/9245/stat): 9245 (pb2sat) R 9244 9245 4005 0 -1 0 252105 0 0 0 8479 499 0 0 25 0 1 0 22274338 737611776 161875 4294967295 134512640 135987407 3221224560 3221147776 134537371 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9245/statm): 180081 161875 364 364 0 179717 0
[pid=9245] vsize: 720324
Current children cumulated CPU time (s) 89.78
Current children cumulated vsize (Kb) 720324

[startup+100.005 s]
Raw data (loadavg): 0.98 0.98 0.94 2/55 9245
Raw data (/proc/9245/stat): 9245 (pb2sat) R 9244 9245 4005 0 -1 0 269464 0 0 0 9442 533 0 0 25 0 1 0 22274338 765423616 178424 4294967295 134512640 135987407 3221224560 3221222788 134562648 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9245/statm): 186871 178424 364 364 0 186507 0
[pid=9245] vsize: 747484
Current children cumulated CPU time (s) 99.75
Current children cumulated vsize (Kb) 747484
One traced child (pid=9245) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 106.366
CPU time (s): 106.126
CPU user time (s): 100.422
CPU system time (s): 5.70413
CPU usage (%): 99.7738
Max. virtual memory (cumulated for all children) (Kb): 747484

Verifier Data

ERROR: no interpretation found !