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-rout.opb
MD5SUM46c175563919d1fe493ed3da6f49d52f
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1236960
Optimality of the best value was proved YES
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 33812000
Number of bits of the biggest number in a constraint 26
Biggest sum of numbers in a constraint 166074535
Number of bits of the biggest sum of numbers28
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark716.391
Number of variables5151
Total number of constraints606
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)314
Number of constraints which are nor clauses,nor cardinality constraints292
Minimum length of a constraint1
Maximum length of a constraint617

Trace number 10426

Launcher Data

LAUNCH ON wulflinc32 THE 2005-09-23 18:16:40 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9185 boxname=wulflinc32 idbench=981 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  46c175563919d1fe493ed3da6f49d52f  /oldhome/oroussel/tmp/wulflinc32/normalized-mps-v2-13-7-rout.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc32/normalized-mps-v2-13-7-rout.opb
IDLAUNCH: 9185
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.145
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		: 451.145
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:      1034724 kB
MemFree:        919724 kB
Buffers:         15580 kB
Cached:          79688 kB
SwapCached:          0 kB
Active:          42304 kB
Inactive:        55860 kB
HighTotal:      131072 kB
HighFree:        46880 kB
LowTotal:       903652 kB
LowFree:        872844 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6988 kB
Slab:            11288 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 18:18:30 (client local time) WITH STATUS 1 IN 109.572 SECONDS
stats: 9185 7 109.572 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/9322/stat): 9322 (pb2sat) R 9321 9322 4005 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 22237417 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/9322/statm): 373 2 364 364 0 9 0
[pid=9322] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc32/normalized-mps-v2-13-7-rout.opb

[startup+10.0014 s]
Raw data (loadavg): 0.86 0.95 0.95 2/55 9322
Raw data (/proc/9322/stat): 9322 (pb2sat) R 9321 9322 4005 0 -1 0 31749 0 0 0 923 73 0 0 25 0 1 0 22237417 100249600 20591 4294967295 134512640 135987407 3221224560 3221123120 134862243 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9322/statm): 24475 20591 364 364 0 24111 0
[pid=9322] vsize: 97900
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 97900

[startup+20.0022 s]
Raw data (loadavg): 0.88 0.95 0.95 2/55 9322
Raw data (/proc/9322/stat): 9322 (pb2sat) R 9321 9322 4005 0 -1 0 62753 0 0 0 1854 139 0 0 25 0 1 0 22237417 197996544 40370 4294967295 134512640 135987407 3221224560 3221113808 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9322/statm): 48339 40370 364 364 0 47975 0
[pid=9322] vsize: 193356
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 193356

[startup+30.003 s]
Raw data (loadavg): 0.90 0.95 0.95 2/55 9322
Raw data (/proc/9322/stat): 9322 (pb2sat) R 9321 9322 4005 0 -1 0 105188 0 0 0 2762 227 0 0 25 0 1 0 22237417 330309632 60601 4294967295 134512640 135987407 3221224560 3221118400 134877907 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9322/statm): 80642 60601 364 364 0 80278 0
[pid=9322] vsize: 322568
Current children cumulated CPU time (s) 29.89
Current children cumulated vsize (Kb) 322568

[startup+40.0038 s]
Raw data (loadavg): 0.91 0.95 0.95 2/55 9322
Raw data (/proc/9322/stat): 9322 (pb2sat) R 9321 9322 4005 0 -1 0 123307 0 0 0 3723 265 0 0 25 0 1 0 22237417 390762496 78509 4294967295 134512640 135987407 3221224560 3221112912 134892994 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9322/statm): 95401 78509 364 364 0 95037 0
[pid=9322] vsize: 381604
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (Kb) 381604

[startup+50.0045 s]
Raw data (loadavg): 0.92 0.96 0.95 2/55 9322
Raw data (/proc/9322/stat): 9322 (pb2sat) R 9321 9322 4005 0 -1 0 167407 0 0 0 4633 350 0 0 25 0 1 0 22237417 602136576 121432 4294967295 134512640 135987407 3221224560 3221138464 134893296 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9322/statm): 147006 121432 364 364 0 146642 0
[pid=9322] vsize: 588024
Current children cumulated CPU time (s) 49.83
Current children cumulated vsize (Kb) 588024

[startup+60.0043 s]
Raw data (loadavg): 0.94 0.96 0.95 2/55 9322
Raw data (/proc/9322/stat): 9322 (pb2sat) R 9321 9322 4005 0 -1 0 207879 0 0 0 5540 441 0 0 25 0 1 0 22237417 655294464 118679 4294967295 134512640 135987407 3221224560 3221122396 135482121 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9322/statm): 159984 118679 364 364 0 159620 0
[pid=9322] vsize: 639936
Current children cumulated CPU time (s) 59.81
Current children cumulated vsize (Kb) 639936

[startup+70.005 s]
Raw data (loadavg): 0.94 0.96 0.95 2/55 9322
Raw data (/proc/9322/stat): 9322 (pb2sat) R 9321 9322 4005 0 -1 0 223698 0 0 0 6505 474 0 0 25 0 1 0 22237417 710483968 134299 4294967295 134512640 135987407 3221224560 3221157144 134537543 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9322/statm): 173458 134299 364 364 0 173094 0
[pid=9322] vsize: 693832
Current children cumulated CPU time (s) 69.79
Current children cumulated vsize (Kb) 693832

[startup+80.0058 s]
Raw data (loadavg): 0.95 0.96 0.95 2/55 9322
Raw data (/proc/9322/stat): 9322 (pb2sat) R 9321 9322 4005 0 -1 0 243093 0 0 0 7459 517 0 0 25 0 1 0 22237417 740589568 153469 4294967295 134512640 135987407 3221224560 3221134940 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9322/statm): 180808 153469 364 364 0 180444 0
[pid=9322] vsize: 723232
Current children cumulated CPU time (s) 79.76
Current children cumulated vsize (Kb) 723232

[startup+90.0066 s]
Raw data (loadavg): 0.96 0.96 0.95 2/55 9322
Raw data (/proc/9322/stat): 9322 (pb2sat) R 9321 9322 4005 0 -1 0 261882 0 0 0 8416 558 0 0 25 0 1 0 22237417 768319488 172040 4294967295 134512640 135987407 3221224560 3221161184 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9322/statm): 187578 172040 364 364 0 187214 0
[pid=9322] vsize: 750312
Current children cumulated CPU time (s) 89.74
Current children cumulated vsize (Kb) 750312

[startup+100.007 s]
Raw data (loadavg): 0.97 0.96 0.95 2/55 9322
Raw data (/proc/9322/stat): 9322 (pb2sat) R 9321 9322 4005 0 -1 0 276146 0 0 0 9385 588 0 0 25 0 1 0 22237417 839352320 186138 4294967295 134512640 135987407 3221224560 3221143676 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9322/statm): 204920 186138 364 364 0 204556 0
[pid=9322] vsize: 819680
Current children cumulated CPU time (s) 99.73
Current children cumulated vsize (Kb) 819680
One traced child (pid=9322) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 109.847
CPU time (s): 109.572
CPU user time (s): 103.219
CPU system time (s): 6.35303
CPU usage (%): 99.7502
Max. virtual memory (cumulated for all children) (Kb): 819680

Verifier Data

ERROR: no interpretation found !