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-pipex.opb
MD5SUMb9c1029cc1d97a8d60e984f96f5d3267
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 788263
Optimality of the best value was proved YES
Number of terms in the objective function 48
Biggest coefficient in the objective function 107865
Number of bits for the biggest coefficient in the objective function 17
Sum of the numbers in the objective function 2514082
Number of bits of the sum of numbers in the objective function 22
Biggest number in a constraint 107865
Number of bits of the biggest number in a constraint 17
Biggest sum of numbers in a constraint 2514082
Number of bits of the biggest sum of numbers22
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark35.1577
Number of variables48
Total number of constraints73
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)64
Number of constraints which are nor clauses,nor cardinality constraints9
Minimum length of a constraint1
Maximum length of a constraint16

Trace number 10368

Launcher Data

LAUNCH ON wulflinc31 THE 2005-09-23 17:56:39 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9124 boxname=wulflinc31 idbench=920 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  b9c1029cc1d97a8d60e984f96f5d3267  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-pipex.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-pipex.opb
IDLAUNCH: 9124
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.047
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		: 451.047
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:        918068 kB
Buffers:         19520 kB
Cached:          78400 kB
SwapCached:          0 kB
Active:          41516 kB
Inactive:        59228 kB
HighTotal:      131008 kB
HighFree:        48776 kB
LowTotal:       903652 kB
LowFree:        869292 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:            10160 kB
Committed_AS:    63664 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 17:58:34 (client local time) WITH STATUS 1 IN 114.468 SECONDS
stats: 9124 7 114.468 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 828241
c small objective detected

	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/9983/stat): 9983 (pb2sat) R 9982 9983 4005 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 22116859 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9983/statm): 373 2 364 364 0 9 0
[pid=9983] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-pipex.opb

[startup+10.0016 s]
Raw data (loadavg): 0.92 0.94 0.92 2/55 9983
Raw data (/proc/9983/stat): 9983 (pb2sat) R 9982 9983 4005 0 -1 0 31359 0 0 0 930 66 0 0 25 0 1 0 22116859 99405824 20201 4294967295 134512640 135987407 3221224560 3221206028 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9983/statm): 24269 20201 364 364 0 23905 0
[pid=9983] vsize: 97076
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 97076

[startup+20.0026 s]
Raw data (loadavg): 0.93 0.95 0.92 2/55 9983
Raw data (/proc/9983/stat): 9983 (pb2sat) R 9982 9983 4005 0 -1 0 61637 0 0 0 1866 127 0 0 25 0 1 0 22116859 195629056 39259 4294967295 134512640 135987407 3221224560 3221206608 134878604 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9983/statm): 47761 39259 364 364 0 47397 0
[pid=9983] vsize: 191044
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 191044

[startup+30.0035 s]
Raw data (loadavg): 0.94 0.95 0.92 2/55 9983
Raw data (/proc/9983/stat): 9983 (pb2sat) R 9982 9983 4005 0 -1 0 103623 0 0 0 2780 211 0 0 25 0 1 0 22116859 328200192 59032 4294967295 134512640 135987407 3221224560 3221208508 134892452 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9983/statm): 80127 59032 364 364 0 79763 0
[pid=9983] vsize: 320508
Current children cumulated CPU time (s) 29.91
Current children cumulated vsize (Kb) 320508

[startup+40.0034 s]
Raw data (loadavg): 0.95 0.95 0.92 2/55 9983
Raw data (/proc/9983/stat): 9983 (pb2sat) R 9982 9983 4005 0 -1 0 121122 0 0 0 3742 246 0 0 25 0 1 0 22116859 388038656 76323 4294967295 134512640 135987407 3221224560 3221206224 134856382 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9983/statm): 94736 76323 364 364 0 94372 0
[pid=9983] vsize: 378944
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (Kb) 378944

[startup+50.0044 s]
Raw data (loadavg): 0.96 0.95 0.92 2/55 9983
Raw data (/proc/9983/stat): 9983 (pb2sat) R 9982 9983 4005 0 -1 0 148196 0 0 0 4687 296 0 0 25 0 1 0 22116859 573284352 102869 4294967295 134512640 135987407 3221224560 3221207196 135499903 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9983/statm): 139962 102869 364 364 0 139598 0
[pid=9983] vsize: 559848
Current children cumulated CPU time (s) 49.83
Current children cumulated vsize (Kb) 559848

[startup+60.0043 s]
Raw data (loadavg): 0.96 0.95 0.92 2/55 9983
Raw data (/proc/9983/stat): 9983 (pb2sat) R 9982 9983 4005 0 -1 0 191246 0 0 0 5596 384 0 0 25 0 1 0 22116859 752496640 126431 4294967295 134512640 135987407 3221224560 3221208768 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9983/statm): 183715 126431 364 364 0 183351 0
[pid=9983] vsize: 734860
Current children cumulated CPU time (s) 59.8
Current children cumulated vsize (Kb) 734860

[startup+70.0062 s]
Raw data (loadavg): 0.97 0.95 0.92 2/55 9983
Raw data (/proc/9983/stat): 9983 (pb2sat) R 9982 9983 4005 0 -1 0 219940 0 0 0 6532 446 0 0 25 0 1 0 22116859 705437696 130365 4294967295 134512640 135987407 3221224560 3221205840 134877732 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9983/statm): 172226 130365 364 364 0 171862 0
[pid=9983] vsize: 688904
Current children cumulated CPU time (s) 69.78
Current children cumulated vsize (Kb) 688904

[startup+80.0071 s]
Raw data (loadavg): 0.97 0.95 0.92 2/55 9983
Raw data (/proc/9983/stat): 9983 (pb2sat) R 9982 9983 4005 0 -1 0 236954 0 0 0 7499 477 0 0 25 0 1 0 22116859 732528640 147187 4294967295 134512640 135987407 3221224560 3221205996 134637031 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9983/statm): 178840 147187 364 364 0 178476 0
[pid=9983] vsize: 715360
Current children cumulated CPU time (s) 79.76
Current children cumulated vsize (Kb) 715360

[startup+90.0071 s]
Raw data (loadavg): 0.98 0.95 0.92 2/55 9983
Raw data (/proc/9983/stat): 9983 (pb2sat) R 9982 9983 4005 0 -1 0 255088 0 0 0 8461 512 0 0 25 0 1 0 22116859 760324096 165114 4294967295 134512640 135987407 3221224560 3221205356 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9983/statm): 185626 165114 364 364 0 185262 0
[pid=9983] vsize: 742504
Current children cumulated CPU time (s) 89.73
Current children cumulated vsize (Kb) 742504

[startup+100.008 s]
Raw data (loadavg): 0.98 0.95 0.92 2/55 9983
Raw data (/proc/9983/stat): 9983 (pb2sat) R 9982 9983 4005 0 -1 0 272747 0 0 0 9426 546 0 0 25 0 1 0 22116859 786051072 182568 4294967295 134512640 135987407 3221224560 3221211048 134637038 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9983/statm): 191907 182568 364 364 0 191543 0
[pid=9983] vsize: 767628
Current children cumulated CPU time (s) 99.72
Current children cumulated vsize (Kb) 767628

[startup+110.009 s]
Raw data (loadavg): 0.98 0.95 0.92 2/55 9983
Raw data (/proc/9983/stat): 9983 (pb2sat) R 9982 9983 4005 0 -1 0 280658 0 0 0 10409 562 0 0 25 0 1 0 22116859 848515072 190384 4294967295 134512640 135987407 3221224560 3221223240 135477294 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9983/statm): 207157 190384 364 364 0 206793 0
[pid=9983] vsize: 828628
Current children cumulated CPU time (s) 109.71
Current children cumulated vsize (Kb) 828628
One traced child (pid=9983) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 114.763
CPU time (s): 114.468
CPU user time (s): 108.448
CPU system time (s): 6.02008
CPU usage (%): 99.7427
Max. virtual memory (cumulated for all children) (Kb): 828628

Verifier Data

ERROR: no interpretation found !