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-recipe.opb
MD5SUM3ed8b1557bef6552695b255ca35679eb
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -107049521
Optimality of the best value was proved NO
Number of terms in the objective function 1055
Biggest coefficient in the objective function 65536000
Number of bits for the biggest coefficient in the objective function 26
Sum of the numbers in the objective function 584330055
Number of bits of the sum of numbers in the objective function 30
Biggest number in a constraint 5681631310381056
Number of bits of the biggest number in a constraint 53
Biggest sum of numbers in a constraint 98271137637301167
Number of bits of the biggest sum of numbers57
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1260.57
Number of variables3671
Total number of constraints159
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 constraints159
Minimum length of a constraint10
Maximum length of a constraint420

Trace number 9905

Launcher Data

LAUNCH ON wulflinc11 THE 2005-09-23 16:08:55 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8656 boxname=wulflinc11 idbench=452 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  3ed8b1557bef6552695b255ca35679eb  /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-recipe.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-recipe.opb
IDLAUNCH: 8656
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.045
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		: 451.045
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:        910572 kB
Buffers:          8784 kB
Cached:          90020 kB
SwapCached:          0 kB
Active:          56436 kB
Inactive:        51944 kB
HighTotal:      131008 kB
HighFree:        38640 kB
LowTotal:       903652 kB
LowFree:        871932 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10020 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:10:38 (client local time) WITH STATUS 1 IN 102.505 SECONDS
stats: 8656 7 102.505 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/9154/stat): 9154 (pb2sat) R 9153 9154 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21512597 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9154/statm): 373 2 364 364 0 9 0
[pid=9154] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-recipe.opb

[startup+10.0023 s]
Raw data (loadavg): 0.92 0.95 0.90 2/55 9154
Raw data (/proc/9154/stat): 9154 (pb2sat) R 9153 9154 4060 0 -1 0 29114 0 0 0 928 69 0 0 25 0 1 0 21512597 84123648 17949 4294967295 134512640 135987407 3221224560 3221089280 135486726 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9154/statm): 20538 17949 364 364 0 20174 0
[pid=9154] vsize: 82152
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 82152

[startup+20.0031 s]
Raw data (loadavg): 0.93 0.95 0.91 2/55 9154
Raw data (/proc/9154/stat): 9154 (pb2sat) R 9153 9154 4060 0 -1 0 60561 0 0 0 1864 130 0 0 25 0 1 0 21512597 181030912 38176 4294967295 134512640 135987407 3221224560 3221097228 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9154/statm): 44197 38176 364 364 0 43833 0
[pid=9154] vsize: 176788
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 176788

[startup+30.0039 s]
Raw data (loadavg): 0.94 0.95 0.91 2/55 9154
Raw data (/proc/9154/stat): 9154 (pb2sat) R 9153 9154 4060 0 -1 0 102991 0 0 0 2770 220 0 0 25 0 1 0 21512597 346730496 58415 4294967295 134512640 135987407 3221224560 3221104240 134877726 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9154/statm): 84651 58415 364 364 0 84287 0
[pid=9154] vsize: 338604
Current children cumulated CPU time (s) 29.9
Current children cumulated vsize (Kb) 338604

[startup+40.0037 s]
Raw data (loadavg): 0.95 0.95 0.91 2/55 9154
Raw data (/proc/9154/stat): 9154 (pb2sat) R 9153 9154 4060 0 -1 0 122403 0 0 0 3733 254 0 0 25 0 1 0 21512597 372277248 77592 4294967295 134512640 135987407 3221224560 3221114528 134637036 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9154/statm): 90888 77592 364 364 0 90524 0
[pid=9154] vsize: 363552
Current children cumulated CPU time (s) 39.87
Current children cumulated vsize (Kb) 363552

[startup+50.0044 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 9154
Raw data (/proc/9154/stat): 9154 (pb2sat) R 9153 9154 4060 0 -1 0 167430 0 0 0 4641 341 0 0 25 0 1 0 21512597 584228864 121422 4294967295 134512640 135987407 3221224560 3221118400 134892999 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9154/statm): 142634 121422 364 364 0 142270 0
[pid=9154] vsize: 570536
Current children cumulated CPU time (s) 49.82
Current children cumulated vsize (Kb) 570536

[startup+60.0042 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 9154
Raw data (/proc/9154/stat): 9154 (pb2sat) R 9153 9154 4060 0 -1 0 208372 0 0 0 5549 431 0 0 25 0 1 0 21512597 637513728 119165 4294967295 134512640 135987407 3221224560 3221126396 135485066 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9154/statm): 155643 119165 364 364 0 155279 0
[pid=9154] vsize: 622572
Current children cumulated CPU time (s) 59.8
Current children cumulated vsize (Kb) 622572

[startup+70.005 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 9154
Raw data (/proc/9154/stat): 9154 (pb2sat) R 9153 9154 4060 0 -1 0 225443 0 0 0 6514 464 0 0 25 0 1 0 21512597 693370880 136029 4294967295 134512640 135987407 3221224560 3221129820 135481007 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9154/statm): 169280 136029 364 364 0 168916 0
[pid=9154] vsize: 677120
Current children cumulated CPU time (s) 69.78
Current children cumulated vsize (Kb) 677120

[startup+80.0058 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 9154
Raw data (/proc/9154/stat): 9154 (pb2sat) R 9153 9154 4060 0 -1 0 245131 0 0 0 7473 502 0 0 25 0 1 0 21512597 719187968 155478 4294967295 134512640 135987407 3221224560 3221141944 134556898 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9154/statm): 175583 155478 364 364 0 175219 0
[pid=9154] vsize: 702332
Current children cumulated CPU time (s) 79.75
Current children cumulated vsize (Kb) 702332

[startup+90.0066 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 9154
Raw data (/proc/9154/stat): 9154 (pb2sat) R 9153 9154 4060 0 -1 0 260806 0 0 0 8440 533 0 0 25 0 1 0 21512597 790065152 170963 4294967295 134512640 135987407 3221224560 3221148748 134637035 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9154/statm): 192887 170963 364 364 0 192523 0
[pid=9154] vsize: 771548
Current children cumulated CPU time (s) 89.73
Current children cumulated vsize (Kb) 771548

[startup+100.007 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 9154
Raw data (/proc/9154/stat): 9154 (pb2sat) R 9153 9154 4060 0 -1 0 277425 0 0 0 9401 570 0 0 25 0 1 0 21512597 813281280 187382 4294967295 134512640 135987407 3221224560 3221222868 135478497 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9154/statm): 198555 187382 364 364 0 198191 0
[pid=9154] vsize: 794220
Current children cumulated CPU time (s) 99.71
Current children cumulated vsize (Kb) 794220
One traced child (pid=9154) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 102.794
CPU time (s): 102.505
CPU user time (s): 96.4163
CPU system time (s): 6.08907
CPU usage (%): 99.7192
Max. virtual memory (cumulated for all children) (Kb): 794220

Verifier Data

ERROR: no interpretation found !