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-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-scsd6.opb
MD5SUMb052177a073d2d8c92d9603ed92c19ee
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 40500
Biggest coefficient in the objective function 240095970606448640
Number of bits for the biggest coefficient in the objective function 58
Sum of the numbers in the objective function 319188057892705075200
Number of bits of the sum of numbers in the objective function 69
Biggest number in a constraint 240095970606448640
Number of bits of the biggest number in a constraint 58
Biggest sum of numbers in a constraint 319188057892705075200
Number of bits of the biggest sum of numbers69
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables40500
Total number of constraints147
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 constraints147
Minimum length of a constraint600
Maximum length of a constraint1200

Trace number 9919

Launcher Data

LAUNCH ON wulflinc6 THE 2005-09-23 16:10:33 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8668 boxname=wulflinc6 idbench=464 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  b052177a073d2d8c92d9603ed92c19ee  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-scsd6.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-scsd6.opb
IDLAUNCH: 8668
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.158
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		: 451.158
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:        922784 kB
Buffers:         12720 kB
Cached:          81528 kB
SwapCached:          0 kB
Active:          46588 kB
Inactive:        50620 kB
HighTotal:      131008 kB
HighFree:        45892 kB
LowTotal:       903652 kB
LowFree:        876892 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             9056 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:12:46 (client local time) WITH STATUS 1 IN 132.864 SECONDS
stats: 8668 7 132.864 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/7926/stat): 7926 (pb2sat) R 7925 7926 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21537507 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/7926/statm): 373 2 364 364 0 9 0
[pid=7926] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-scsd6.opb

[startup+10.0015 s]
Raw data (loadavg): 0.85 0.92 0.96 2/55 7926
Raw data (/proc/7926/stat): 7926 (pb2sat) R 7925 7926 4060 0 -1 0 2566 0 0 0 991 7 0 0 25 0 1 0 21537507 9506816 1879 4294967295 134512640 135987407 3221224560 3221221276 135499910 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7926/statm): 2321 1879 364 364 0 1957 0
[pid=7926] vsize: 9284
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 9284

[startup+20.0023 s]
Raw data (loadavg): 0.87 0.92 0.96 2/55 7926
Raw data (/proc/7926/stat): 7926 (pb2sat) R 7925 7926 4060 0 -1 0 4185 0 0 0 1988 10 0 0 25 0 1 0 21537507 15228928 2751 4294967295 134512640 135987407 3221224560 3221221872 134555870 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7926/statm): 3718 2751 364 364 0 3354 0
[pid=7926] vsize: 14872
Current children cumulated CPU time (s) 19.98
Current children cumulated vsize (Kb) 14872

[startup+30.003 s]
Raw data (loadavg): 0.89 0.92 0.96 2/55 7926
Raw data (/proc/7926/stat): 7926 (pb2sat) R 7925 7926 4060 0 -1 0 4449 0 0 0 2987 11 0 0 25 0 1 0 21537507 15769600 3009 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7926/statm): 3850 3009 364 364 0 3486 0
[pid=7926] vsize: 15400
Current children cumulated CPU time (s) 29.98
Current children cumulated vsize (Kb) 15400

[startup+40.0038 s]
Raw data (loadavg): 0.91 0.93 0.96 2/55 7926
Raw data (/proc/7926/stat): 7926 (pb2sat) R 7925 7926 4060 0 -1 0 27935 0 0 0 3936 60 0 0 25 0 1 0 21537507 103751680 19657 4294967295 134512640 135987407 3221224560 3220994576 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7926/statm): 25330 19657 364 364 0 24966 0
[pid=7926] vsize: 101320
Current children cumulated CPU time (s) 39.96
Current children cumulated vsize (Kb) 101320

[startup+50.0045 s]
Raw data (loadavg): 0.92 0.93 0.96 2/55 7926
Raw data (/proc/7926/stat): 7926 (pb2sat) R 7925 7926 4060 0 -1 0 59606 0 0 0 4868 125 0 0 25 0 1 0 21537507 196427776 37028 4294967295 134512640 135987407 3221224560 3220989116 134636961 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7926/statm): 47956 37028 364 364 0 47592 0
[pid=7926] vsize: 191824
Current children cumulated CPU time (s) 49.93
Current children cumulated vsize (Kb) 191824

[startup+60.0053 s]
Raw data (loadavg): 0.93 0.93 0.96 2/55 7926
Raw data (/proc/7926/stat): 7926 (pb2sat) R 7925 7926 4060 0 -1 0 92032 0 0 0 5799 190 0 0 25 0 1 0 21537507 282120192 59386 4294967295 134512640 135987407 3221224560 3220981772 134636959 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7926/statm): 68877 59386 364 364 0 68513 0
[pid=7926] vsize: 275508
Current children cumulated CPU time (s) 59.89
Current children cumulated vsize (Kb) 275508

[startup+70.005 s]
Raw data (loadavg): 0.94 0.93 0.96 2/55 7926
Raw data (/proc/7926/stat): 7926 (pb2sat) R 7925 7926 4060 0 -1 0 121198 0 0 0 6733 253 0 0 25 0 1 0 21537507 389402624 76046 4294967295 134512640 135987407 3221224560 3220980380 134636959 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7926/statm): 95069 76046 364 364 0 94705 0
[pid=7926] vsize: 380276
Current children cumulated CPU time (s) 69.86
Current children cumulated vsize (Kb) 380276

[startup+80.0057 s]
Raw data (loadavg): 0.95 0.93 0.96 2/55 7926
Raw data (/proc/7926/stat): 7926 (pb2sat) R 7925 7926 4060 0 -1 0 166231 0 0 0 7640 342 0 0 25 0 1 0 21537507 600444928 119274 4294967295 134512640 135987407 3221224560 3220980000 134861437 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7926/statm): 146593 119274 364 364 0 146229 0
[pid=7926] vsize: 586372
Current children cumulated CPU time (s) 79.82
Current children cumulated vsize (Kb) 586372

[startup+90.0065 s]
Raw data (loadavg): 0.96 0.94 0.96 2/55 7926
Raw data (/proc/7926/stat): 7926 (pb2sat) R 7925 7926 4060 0 -1 0 191811 0 0 0 8586 394 0 0 25 0 1 0 21537507 759623680 125952 4294967295 134512640 135987407 3221224560 3220980464 134887487 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7926/statm): 185455 125956 364 364 0 185091 0
[pid=7926] vsize: 741820
Current children cumulated CPU time (s) 89.8
Current children cumulated vsize (Kb) 741820

[startup+100.007 s]
Raw data (loadavg): 0.96 0.94 0.96 2/55 7926
Raw data (/proc/7926/stat): 7926 (pb2sat) R 7925 7926 4060 0 -1 0 225347 0 0 0 9513 466 0 0 25 0 1 0 21537507 714948608 134702 4294967295 134512640 135987407 3221224560 3220981232 134877628 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7926/statm): 174548 134702 364 364 0 174184 0
[pid=7926] vsize: 698192
Current children cumulated CPU time (s) 99.79
Current children cumulated vsize (Kb) 698192

[startup+110.008 s]
Raw data (loadavg): 0.97 0.94 0.96 2/55 7926
Raw data (/proc/7926/stat): 7926 (pb2sat) R 7925 7926 4060 0 -1 0 242209 0 0 0 10475 502 0 0 25 0 1 0 21537507 738197504 151348 4294967295 134512640 135987407 3221224560 3220980232 135499909 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7926/statm): 180224 151348 364 364 0 179860 0
[pid=7926] vsize: 720896
Current children cumulated CPU time (s) 109.77
Current children cumulated vsize (Kb) 720896

[startup+120.008 s]
Raw data (loadavg): 0.97 0.94 0.96 2/55 7926
Raw data (/proc/7926/stat): 7926 (pb2sat) R 7925 7926 4060 0 -1 0 261095 0 0 0 11437 538 0 0 25 0 1 0 21537507 764567552 169992 4294967295 134512640 135987407 3221224560 3220979936 134856699 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7926/statm): 186662 169992 364 364 0 186298 0
[pid=7926] vsize: 746648
Current children cumulated CPU time (s) 119.75
Current children cumulated vsize (Kb) 746648

[startup+130.007 s]
Raw data (loadavg): 0.98 0.94 0.96 2/55 7926
Raw data (/proc/7926/stat): 7926 (pb2sat) R 7925 7926 4060 0 -1 0 272831 0 0 0 12399 575 0 0 25 0 1 0 21537507 472129536 114425 4294967295 134512640 135987407 3221224560 3221223224 135477650 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7926/statm): 115266 114425 364 364 0 114902 0
[pid=7926] vsize: 461064
Current children cumulated CPU time (s) 129.74
Current children cumulated vsize (Kb) 461064
One traced child (pid=7926) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 133.127
CPU time (s): 132.864
CPU user time (s): 126.865
CPU system time (s): 5.99909
CPU usage (%): 99.8026
Max. virtual memory (cumulated for all children) (Kb): 746648

Verifier Data

ERROR: no interpretation found !