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/www.csit.fsu.edu/~burkardt/datasets/mps/normalized-mps-v2-20-10-adlittle.opb
MD5SUM2833b37c31c7399c7b1bcb72ed443385
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 2460
Biggest coefficient in the objective function 88852135936000
Number of bits for the biggest coefficient in the objective function 47
Sum of the numbers in the objective function 3689448844530141
Number of bits of the sum of numbers in the objective function 52
Biggest number in a constraint 359703511040000
Number of bits of the biggest number in a constraint 49
Biggest sum of numbers in a constraint 6054438712178314
Number of bits of the biggest sum of numbers53
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables2910
Total number of constraints56
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 constraints56
Minimum length of a constraint30
Maximum length of a constraint810

Trace number 10242

Launcher Data

LAUNCH ON wulflinc27 THE 2005-09-23 17:42:08 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8989 boxname=wulflinc27 idbench=785 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  2833b37c31c7399c7b1bcb72ed443385  /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-20-10-adlittle.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-20-10-adlittle.opb
IDLAUNCH: 8989
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.039
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		: 451.039
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:        935776 kB
Buffers:         12004 kB
Cached:          69732 kB
SwapCached:          0 kB
Active:          45560 kB
Inactive:        39112 kB
HighTotal:      131008 kB
HighFree:        56868 kB
LowTotal:       903652 kB
LowFree:        878908 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             8580 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 17:43:53 (client local time) WITH STATUS 1 IN 104.466 SECONDS
stats: 8989 7 104.466 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/10067/stat): 10067 (pb2sat) R 10066 10067 4005 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 22034134 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10067/statm): 373 2 364 364 0 9 0
[pid=10067] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-20-10-adlittle.opb

[startup+10.002 s]
Raw data (loadavg): 0.93 0.97 0.97 2/55 10067
Raw data (/proc/10067/stat): 10067 (pb2sat) R 10066 10067 4005 0 -1 0 31394 0 0 0 932 63 0 0 25 0 1 0 22034134 98525184 20254 4294967295 134512640 135987407 3221224560 3221135644 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10067/statm): 24054 20254 364 364 0 23690 0
[pid=10067] vsize: 96216
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 96216

[startup+20.0028 s]
Raw data (loadavg): 0.94 0.97 0.97 2/55 10067
Raw data (/proc/10067/stat): 10067 (pb2sat) R 10066 10067 4005 0 -1 0 63072 0 0 0 1865 128 0 0 25 0 1 0 22034134 195162112 40707 4294967295 134512640 135987407 3221224560 3221153744 135486783 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10067/statm): 47647 40707 364 364 0 47283 0
[pid=10067] vsize: 190588
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 190588

[startup+30.0037 s]
Raw data (loadavg): 0.95 0.97 0.97 2/55 10067
Raw data (/proc/10067/stat): 10067 (pb2sat) R 10066 10067 4005 0 -1 0 106692 0 0 0 2774 215 0 0 25 0 1 0 22034134 362348544 62120 4294967295 134512640 135987407 3221224560 3221179168 134877628 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10067/statm): 88464 62120 364 364 0 88100 0
[pid=10067] vsize: 353856
Current children cumulated CPU time (s) 29.89
Current children cumulated vsize (Kb) 353856

[startup+40.0035 s]
Raw data (loadavg): 0.95 0.97 0.97 2/55 10067
Raw data (/proc/10067/stat): 10067 (pb2sat) R 10066 10067 4005 0 -1 0 126403 0 0 0 3732 254 0 0 25 0 1 0 22034134 388300800 81591 4294967295 134512640 135987407 3221224560 3221192428 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10067/statm): 94800 81591 364 364 0 94436 0
[pid=10067] vsize: 379200
Current children cumulated CPU time (s) 39.86
Current children cumulated vsize (Kb) 379200

[startup+50.0043 s]
Raw data (loadavg): 0.96 0.97 0.97 2/55 10067
Raw data (/proc/10067/stat): 10067 (pb2sat) R 10066 10067 4005 0 -1 0 171554 0 0 0 4641 340 0 0 25 0 1 0 22034134 600793088 125545 4294967295 134512640 135987407 3221224560 3221211536 134861431 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10067/statm): 146678 125545 364 364 0 146314 0
[pid=10067] vsize: 586712
Current children cumulated CPU time (s) 49.81
Current children cumulated vsize (Kb) 586712

[startup+60.0042 s]
Raw data (loadavg): 0.97 0.97 0.97 2/55 10067
Raw data (/proc/10067/stat): 10067 (pb2sat) R 10066 10067 4005 0 -1 0 207499 0 0 0 5561 419 0 0 25 0 1 0 22034134 640696320 118319 4294967295 134512640 135987407 3221224560 3221150448 134537552 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10067/statm): 156420 118319 364 364 0 156056 0
[pid=10067] vsize: 625680
Current children cumulated CPU time (s) 59.8
Current children cumulated vsize (Kb) 625680

[startup+70.005 s]
Raw data (loadavg): 0.97 0.97 0.97 2/55 10067
Raw data (/proc/10067/stat): 10067 (pb2sat) R 10066 10067 4005 0 -1 0 219614 0 0 0 6536 445 0 0 25 0 1 0 22034134 674521088 130216 4294967295 134512640 135987407 3221224560 3221199560 134558835 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10067/statm): 164678 130216 364 364 0 164314 0
[pid=10067] vsize: 658712
Current children cumulated CPU time (s) 69.81
Current children cumulated vsize (Kb) 658712

[startup+80.0058 s]
Raw data (loadavg): 0.98 0.97 0.97 2/55 10067
Raw data (/proc/10067/stat): 10067 (pb2sat) R 10066 10067 4005 0 -1 0 232861 0 0 0 7507 473 0 0 25 0 1 0 22034134 675483648 143222 4294967295 134512640 135987407 3221224560 3221143372 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10067/statm): 164913 143222 364 364 0 164549 0
[pid=10067] vsize: 659652
Current children cumulated CPU time (s) 79.8
Current children cumulated vsize (Kb) 659652

[startup+90.0066 s]
Raw data (loadavg): 0.98 0.97 0.97 2/55 10067
Raw data (/proc/10067/stat): 10067 (pb2sat) R 10066 10067 4005 0 -1 0 244313 0 0 0 8486 494 0 0 25 0 1 0 22034134 726364160 154466 4294967295 134512640 135987407 3221224560 3221146912 134877628 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10067/statm): 177335 154466 364 364 0 176971 0
[pid=10067] vsize: 709340
Current children cumulated CPU time (s) 89.8
Current children cumulated vsize (Kb) 709340

[startup+100.007 s]
Raw data (loadavg): 0.98 0.97 0.97 2/55 10067
Raw data (/proc/10067/stat): 10067 (pb2sat) R 10066 10067 4005 0 -1 0 256720 0 0 0 9463 516 0 0 25 0 1 0 22034134 733511680 166676 4294967295 134512640 135987407 3221224560 3221223020 134893010 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10067/statm): 179080 166676 364 364 0 178716 0
[pid=10067] vsize: 716320
Current children cumulated CPU time (s) 99.79
Current children cumulated vsize (Kb) 716320
One traced child (pid=10067) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 104.674
CPU time (s): 104.466
CPU user time (s): 98.956
CPU system time (s): 5.51016
CPU usage (%): 99.8012
Max. virtual memory (cumulated for all children) (Kb): 716320

Verifier Data

ERROR: no interpretation found !