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/MIPLIB/miplib2003/normalized-mps-v2-20-10-mkc.opb
MD5SUM6ef3eff2fef1e9f71734c5cb8b6e12e4
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved NO
Number of terms in the objective function 2946
Biggest coefficient in the objective function 20000
Number of bits for the biggest coefficient in the objective function 15
Sum of the numbers in the objective function 31442101
Number of bits of the sum of numbers in the objective function 25
Biggest number in a constraint 67108864000
Number of bits of the biggest number in a constraint 36
Biggest sum of numbers in a constraint 138201238403
Number of bits of the biggest sum of numbers38
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1231.05
Number of variables5383
Total number of constraints8734
Number of constraints which are clauses2977
Number of constraints which are cardinality constraints (but not clauses)5731
Number of constraints which are nor clauses,nor cardinality constraints26
Minimum length of a constraint1
Maximum length of a constraint2952

Trace number 10026

Launcher Data

LAUNCH ON wulflinc6 THE 2005-09-23 16:36:23 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8781 boxname=wulflinc6 idbench=577 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  6ef3eff2fef1e9f71734c5cb8b6e12e4  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-mkc.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-mkc.opb
IDLAUNCH: 8781
/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:        924976 kB
Buffers:         12912 kB
Cached:          79636 kB
SwapCached:          0 kB
Active:          42136 kB
Inactive:        53312 kB
HighTotal:      131008 kB
HighFree:        47852 kB
LowTotal:       903652 kB
LowFree:        877124 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             8752 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:38:13 (client local time) WITH STATUS 1 IN 109.522 SECONDS
stats: 8781 7 109.522 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/8481/stat): 8481 (pb2sat) R 8480 8481 4060 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 21692545 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8481/statm): 373 2 364 364 0 9 0
[pid=8481] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-mkc.opb

[startup+10.0026 s]
Raw data (loadavg): 0.92 0.94 0.95 2/55 8481
Raw data (/proc/8481/stat): 8481 (pb2sat) R 8480 8481 4060 0 -1 0 29683 0 0 0 926 70 0 0 25 0 1 0 21692545 98357248 18550 4294967295 134512640 135987407 3221224560 3220278508 135482121 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8481/statm): 24013 18550 364 364 0 23649 0
[pid=8481] vsize: 96052
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 96052

[startup+20.0034 s]
Raw data (loadavg): 0.93 0.95 0.95 2/55 8481
Raw data (/proc/8481/stat): 8481 (pb2sat) R 8480 8481 4060 0 -1 0 60968 0 0 0 1856 137 0 0 25 0 1 0 21692545 196087808 38605 4294967295 134512640 135987407 3221224560 3220763600 134878384 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8481/statm): 47873 38605 364 364 0 47509 0
[pid=8481] vsize: 191492
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 191492

[startup+30.0041 s]
Raw data (loadavg): 0.94 0.95 0.95 2/55 8481
Raw data (/proc/8481/stat): 8481 (pb2sat) R 8480 8481 4060 0 -1 0 103829 0 0 0 2764 224 0 0 25 0 1 0 21692545 329461760 59258 4294967295 134512640 135987407 3221224560 3220729052 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8481/statm): 80435 59258 364 364 0 80071 0
[pid=8481] vsize: 321740
Current children cumulated CPU time (s) 29.88
Current children cumulated vsize (Kb) 321740

[startup+40.0048 s]
Raw data (loadavg): 0.95 0.95 0.95 2/55 8481
Raw data (/proc/8481/stat): 8481 (pb2sat) R 8480 8481 4060 0 -1 0 122251 0 0 0 3721 264 0 0 25 0 1 0 21692545 389779456 77454 4294967295 134512640 135987407 3221224560 3220249312 134558507 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8481/statm): 95161 77454 364 364 0 94797 0
[pid=8481] vsize: 380644
Current children cumulated CPU time (s) 39.85
Current children cumulated vsize (Kb) 380644

[startup+50.0046 s]
Raw data (loadavg): 0.96 0.95 0.95 2/55 8481
Raw data (/proc/8481/stat): 8481 (pb2sat) R 8480 8481 4060 0 -1 0 161993 0 0 0 4636 344 0 0 25 0 1 0 21692545 594321408 116198 4294967295 134512640 135987407 3221224560 3220252448 134854925 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8481/statm): 145098 116198 364 364 0 144734 0
[pid=8481] vsize: 580392
Current children cumulated CPU time (s) 49.8
Current children cumulated vsize (Kb) 580392

[startup+60.0053 s]
Raw data (loadavg): 0.96 0.95 0.95 2/55 8481
Raw data (/proc/8481/stat): 8481 (pb2sat) R 8480 8481 4060 0 -1 0 207023 0 0 0 5535 444 0 0 25 0 1 0 21692545 654909440 117837 4294967295 134512640 135987407 3221224560 3220241008 134855001 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8481/statm): 159890 117837 364 364 0 159526 0
[pid=8481] vsize: 639560
Current children cumulated CPU time (s) 59.79
Current children cumulated vsize (Kb) 639560

[startup+70.0061 s]
Raw data (loadavg): 0.97 0.95 0.95 2/55 8481
Raw data (/proc/8481/stat): 8481 (pb2sat) R 8480 8481 4060 0 -1 0 223280 0 0 0 6498 480 0 0 25 0 1 0 21692545 711442432 133900 4294967295 134512640 135987407 3221224560 3220424800 134855001 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8481/statm): 173692 133900 364 364 0 173328 0
[pid=8481] vsize: 694768
Current children cumulated CPU time (s) 69.78
Current children cumulated vsize (Kb) 694768

[startup+80.0068 s]
Raw data (loadavg): 0.97 0.95 0.95 2/55 8481
Raw data (/proc/8481/stat): 8481 (pb2sat) R 8480 8481 4060 0 -1 0 243096 0 0 0 7453 523 0 0 25 0 1 0 21692545 741855232 153495 4294967295 134512640 135987407 3221224560 3220421248 134558265 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8481/statm): 181117 153495 364 364 0 180753 0
[pid=8481] vsize: 724468
Current children cumulated CPU time (s) 79.76
Current children cumulated vsize (Kb) 724468

[startup+90.0066 s]
Raw data (loadavg): 0.98 0.95 0.95 2/55 8481
Raw data (/proc/8481/stat): 8481 (pb2sat) R 8480 8481 4060 0 -1 0 262077 0 0 0 8414 559 0 0 25 0 1 0 21692545 768888832 172255 4294967295 134512640 135987407 3221224560 3220246220 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8481/statm): 187717 172255 364 364 0 187353 0
[pid=8481] vsize: 750868
Current children cumulated CPU time (s) 89.73
Current children cumulated vsize (Kb) 750868

[startup+100.006 s]
Raw data (loadavg): 0.98 0.95 0.95 2/55 8481
Raw data (/proc/8481/stat): 8481 (pb2sat) R 8480 8481 4060 0 -1 0 277184 0 0 0 9381 591 0 0 25 0 1 0 21692545 841027584 187181 4294967295 134512640 135987407 3221224560 3220248460 135480425 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8481/statm): 205329 187181 364 364 0 204965 0
[pid=8481] vsize: 821316
Current children cumulated CPU time (s) 99.72
Current children cumulated vsize (Kb) 821316
One traced child (pid=8481) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 109.816
CPU time (s): 109.522
CPU user time (s): 103.143
CPU system time (s): 6.37903
CPU usage (%): 99.7327
Max. virtual memory (cumulated for all children) (Kb): 821316

Verifier Data

ERROR: no interpretation found !