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/miplib/normalized-mps-v2-13-7-sample2.opb
MD5SUMd28092793cdc5a919be9a0f5974c70fe
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 48000
Optimality of the best value was proved YES
Number of terms in the objective function 489
Biggest coefficient in the objective function 3145728
Number of bits for the biggest coefficient in the objective function 22
Sum of the numbers in the objective function 69282750
Number of bits of the sum of numbers in the objective function 27
Biggest number in a constraint 3145728
Number of bits of the biggest number in a constraint 22
Biggest sum of numbers in a constraint 69282750
Number of bits of the biggest sum of numbers27
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark7.66783
Number of variables873
Total number of constraints67
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)24
Number of constraints which are nor clauses,nor cardinality constraints43
Minimum length of a constraint1
Maximum length of a constraint100

Trace number 10372

Launcher Data

LAUNCH ON wulflinc14 THE 2005-09-23 17:56:56 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9127 boxname=wulflinc14 idbench=923 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  d28092793cdc5a919be9a0f5974c70fe  /oldhome/oroussel/tmp/wulflinc14/normalized-mps-v2-13-7-sample2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc14/normalized-mps-v2-13-7-sample2.opb
IDLAUNCH: 9127
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.058
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		: 451.058
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:        982864 kB
Buffers:          2636 kB
Cached:          32044 kB
SwapCached:          0 kB
Active:          16916 kB
Inactive:        20668 kB
HighTotal:      131008 kB
HighFree:        94696 kB
LowTotal:       903652 kB
LowFree:        888168 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             8520 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:59:03 (client local time) WITH STATUS 1 IN 126.543 SECONDS
stats: 9127 7 126.543 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 99137
c big objective detected
c trying from 0 to 511
c CONFLICT during preprocess 
c trying from 512 to 1023
c CONFLICT during preprocess 
c trying from 1024 to 1535
c CONFLICT during preprocess 
c trying from 1536 to 2047

	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/9625/stat): 9625 (pb2sat) R 9624 9625 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22159281 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9625/statm): 373 2 364 364 0 9 0
[pid=9625] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc14/normalized-mps-v2-13-7-sample2.opb

[startup+10.0019 s]
Raw data (loadavg): 1.10 0.99 0.95 2/55 9625
Raw data (/proc/9625/stat): 9625 (pb2sat) R 9624 9625 4060 0 -1 0 28003 0 0 0 919 69 0 0 25 0 1 0 22159281 94261248 16889 4294967295 134512640 135987407 3221224560 3221103104 134877726 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9625/statm): 23013 16889 364 364 0 22649 0
[pid=9625] vsize: 92052
Current children cumulated CPU time (s) 9.88
Current children cumulated vsize (Kb) 92052

[startup+20.0026 s]
Raw data (loadavg): 1.09 0.99 0.95 2/55 9625
Raw data (/proc/9625/stat): 9625 (pb2sat) R 9624 9625 4060 0 -1 0 58313 0 0 0 1849 136 0 0 25 0 1 0 22159281 183599104 35565 4294967295 134512640 135987407 3221224560 3221081360 134878060 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9625/statm): 44824 35565 364 364 0 44460 0
[pid=9625] vsize: 179296
Current children cumulated CPU time (s) 19.85
Current children cumulated vsize (Kb) 179296

[startup+30.0032 s]
Raw data (loadavg): 1.07 0.99 0.95 2/55 9625
Raw data (/proc/9625/stat): 9625 (pb2sat) R 9624 9625 4060 0 -1 0 83774 0 0 0 2793 190 0 0 25 0 1 0 22159281 254738432 51108 4294967295 134512640 135987407 3221224560 3221151088 134892445 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9625/statm): 62192 51108 364 364 0 61828 0
[pid=9625] vsize: 248768
Current children cumulated CPU time (s) 29.83
Current children cumulated vsize (Kb) 248768

[startup+40.0029 s]
Raw data (loadavg): 1.06 0.99 0.95 2/55 9625
Raw data (/proc/9625/stat): 9625 (pb2sat) R 9624 9625 4060 0 -1 0 111508 0 0 0 3727 253 0 0 25 0 1 0 22159281 353144832 64011 4294967295 134512640 135987407 3221224560 3221222956 135482121 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9625/statm): 86217 64012 364 364 0 85853 0
[pid=9625] vsize: 344868
Current children cumulated CPU time (s) 39.8
Current children cumulated vsize (Kb) 344868

[startup+50.0036 s]
Raw data (loadavg): 1.05 0.99 0.95 2/55 9625
Raw data (/proc/9625/stat): 9625 (pb2sat) R 9624 9625 4060 0 -1 0 131394 0 0 0 4675 302 0 0 25 0 1 0 22159281 396804096 83711 4294967295 134512640 135987407 3221224560 3221163916 135499893 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9625/statm): 96876 83712 364 364 0 96512 0
[pid=9625] vsize: 387504
Current children cumulated CPU time (s) 49.77
Current children cumulated vsize (Kb) 387504

[startup+60.0033 s]
Raw data (loadavg): 1.04 0.99 0.95 2/55 9625
Raw data (/proc/9625/stat): 9625 (pb2sat) R 9624 9625 4060 0 -1 0 147301 0 0 0 5646 330 0 0 25 0 1 0 22159281 554283008 99226 4294967295 134512640 135987407 3221224560 3221160944 134856505 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9625/statm): 135323 99228 364 364 0 134959 0
[pid=9625] vsize: 541292
Current children cumulated CPU time (s) 59.76
Current children cumulated vsize (Kb) 541292

[startup+70.0039 s]
Raw data (loadavg): 1.04 0.99 0.95 2/55 9625
Raw data (/proc/9625/stat): 9625 (pb2sat) R 9624 9625 4060 0 -1 0 180862 0 0 0 6581 392 0 0 25 0 1 0 22159281 533131264 113365 4294967295 134512640 135987407 3221224560 3221123644 135482121 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9625/statm): 130159 113365 364 364 0 129795 0
[pid=9625] vsize: 520636
Current children cumulated CPU time (s) 69.73
Current children cumulated vsize (Kb) 520636

[startup+80.0046 s]
Raw data (loadavg): 1.03 0.99 0.95 2/55 9625
Raw data (/proc/9625/stat): 9625 (pb2sat) R 9624 9625 4060 0 -1 0 217614 0 0 0 7500 473 0 0 25 0 1 0 22159281 649613312 119259 4294967295 134512640 135987407 3221224560 3221223248 134788454 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9625/statm): 158597 119259 364 364 0 158233 0
[pid=9625] vsize: 634388
Current children cumulated CPU time (s) 79.73
Current children cumulated vsize (Kb) 634388

[startup+90.0053 s]
Raw data (loadavg): 1.02 0.99 0.95 2/55 9625
Raw data (/proc/9625/stat): 9625 (pb2sat) R 9624 9625 4060 0 -1 0 242234 0 0 0 8433 535 0 0 25 0 1 0 22159281 749113344 143764 4294967295 134512640 135987407 3221224560 3221178864 134802732 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9625/statm): 182889 143764 364 364 0 182525 0
[pid=9625] vsize: 731556
Current children cumulated CPU time (s) 89.68
Current children cumulated vsize (Kb) 731556

[startup+100.006 s]
Raw data (loadavg): 1.02 0.99 0.95 2/55 9625
Raw data (/proc/9625/stat): 9625 (pb2sat) R 9624 9625 4060 0 -1 0 254423 0 0 0 9406 562 0 0 25 0 1 0 22159281 750735360 155717 4294967295 134512640 135987407 3221224560 3221208092 134636959 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9625/statm): 183285 155717 364 364 0 182921 0
[pid=9625] vsize: 733140
Current children cumulated CPU time (s) 99.68
Current children cumulated vsize (Kb) 733140

[startup+110.007 s]
Raw data (loadavg): 1.02 0.99 0.95 2/55 9625
Raw data (/proc/9625/stat): 9625 (pb2sat) R 9624 9625 4060 0 -1 0 266735 0 0 0 10380 588 0 0 25 0 1 0 22159281 782794752 167817 4294967295 134512640 135987407 3221224560 3221168992 134556288 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9625/statm): 191112 167817 364 364 0 190748 0
[pid=9625] vsize: 764448
Current children cumulated CPU time (s) 109.68
Current children cumulated vsize (Kb) 764448

[startup+120.007 s]
Raw data (loadavg): 1.01 0.99 0.95 2/55 9625
Raw data (/proc/9625/stat): 9625 (pb2sat) R 9624 9625 4060 0 -1 0 285213 0 0 0 11336 629 0 0 25 0 1 0 22159281 812834816 186070 4294967295 134512640 135987407 3221224560 3221202000 134862299 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9625/statm): 198446 186070 364 364 0 198082 0
[pid=9625] vsize: 793784
Current children cumulated CPU time (s) 119.65
Current children cumulated vsize (Kb) 793784
One traced child (pid=9625) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 126.894
CPU time (s): 126.543
CPU user time (s): 119.878
CPU system time (s): 6.66499
CPU usage (%): 99.7232
Max. virtual memory (cumulated for all children) (Kb): 793784

Verifier Data

ERROR: no interpretation found !