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/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-adlittle.opb
MD5SUMf517bba7737c6a2d32340ac67613cda8
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 1640
Biggest coefficient in the objective function 86769664000
Number of bits for the biggest coefficient in the objective function 37
Sum of the numbers in the objective function 3602973954525
Number of bits of the sum of numbers in the objective function 42
Biggest number in a constraint 351272960000
Number of bits of the biggest number in a constraint 39
Biggest sum of numbers in a constraint 5928173491850
Number of bits of the biggest sum of numbers43
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables1940
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 constraint20
Maximum length of a constraint540

Trace number 10245

Launcher Data

LAUNCH ON wulflinc24 THE 2005-09-23 17:42:19 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8992 boxname=wulflinc24 idbench=788 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  f517bba7737c6a2d32340ac67613cda8  /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-13-7-adlittle.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-13-7-adlittle.opb
IDLAUNCH: 8992
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.047
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		: 451.047
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:        894908 kB
Buffers:         15628 kB
Cached:         105004 kB
SwapCached:          0 kB
Active:          66460 kB
Inactive:        57116 kB
HighTotal:      131008 kB
HighFree:        24024 kB
LowTotal:       903652 kB
LowFree:        870884 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10636 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 17:44:10 (client local time) WITH STATUS 1 IN 111.343 SECONDS
stats: 8992 7 111.343 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/9361/stat): 9361 (pb2sat) R 9360 9361 4059 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 22068164 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/9361/statm): 373 2 364 364 0 9 0
[pid=9361] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-13-7-adlittle.opb

[startup+10.0018 s]
Raw data (loadavg): 0.88 0.97 0.96 2/55 9361
Raw data (/proc/9361/stat): 9361 (pb2sat) R 9360 9361 4059 0 -1 0 30721 0 0 0 930 64 0 0 25 0 1 0 22068164 98103296 19588 4294967295 134512640 135987407 3221224560 3221165244 135482121 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9361/statm): 23951 19588 364 364 0 23587 0
[pid=9361] vsize: 95804
Current children cumulated CPU time (s) 9.94
Current children cumulated vsize (Kb) 95804

[startup+20.0025 s]
Raw data (loadavg): 0.89 0.97 0.96 2/55 9361
Raw data (/proc/9361/stat): 9361 (pb2sat) R 9360 9361 4059 0 -1 0 60882 0 0 0 1865 126 0 0 25 0 1 0 22068164 193122304 38544 4294967295 134512640 135987407 3221224560 3221165884 134637031 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9361/statm): 47149 38544 364 364 0 46785 0
[pid=9361] vsize: 188596
Current children cumulated CPU time (s) 19.91
Current children cumulated vsize (Kb) 188596

[startup+30.0032 s]
Raw data (loadavg): 0.91 0.97 0.96 2/55 9361
Raw data (/proc/9361/stat): 9361 (pb2sat) R 9360 9361 4059 0 -1 0 103073 0 0 0 2775 213 0 0 25 0 1 0 22068164 324603904 58544 4294967295 134512640 135987407 3221224560 3221174576 134637036 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9361/statm): 79249 58544 364 364 0 78885 0
[pid=9361] vsize: 316996
Current children cumulated CPU time (s) 29.88
Current children cumulated vsize (Kb) 316996

[startup+40.0039 s]
Raw data (loadavg): 0.92 0.97 0.96 2/55 9361
Raw data (/proc/9361/stat): 9361 (pb2sat) R 9360 9361 4059 0 -1 0 120629 0 0 0 3739 247 0 0 25 0 1 0 22068164 381685760 75888 4294967295 134512640 135987407 3221224560 3221176156 134860968 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9361/statm): 93185 75888 364 364 0 92821 0
[pid=9361] vsize: 372740
Current children cumulated CPU time (s) 39.86
Current children cumulated vsize (Kb) 372740

[startup+50.0046 s]
Raw data (loadavg): 0.93 0.97 0.96 2/55 9361
Raw data (/proc/9361/stat): 9361 (pb2sat) R 9360 9361 4059 0 -1 0 139536 0 0 0 4698 286 0 0 25 0 1 0 22068164 406564864 94565 4294967295 134512640 135987407 3221224560 3221177308 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9361/statm): 99259 94565 364 364 0 98895 0
[pid=9361] vsize: 397036
Current children cumulated CPU time (s) 49.84
Current children cumulated vsize (Kb) 397036

[startup+60.0053 s]
Raw data (loadavg): 0.94 0.97 0.96 2/55 9361
Raw data (/proc/9361/stat): 9361 (pb2sat) R 9360 9361 4059 0 -1 0 204937 0 0 0 5556 422 0 0 25 0 1 0 22068164 644902912 115820 4294967295 134512640 135987407 3221224560 3221182208 134893296 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9361/statm): 157447 115820 364 364 0 157083 0
[pid=9361] vsize: 629788
Current children cumulated CPU time (s) 59.78
Current children cumulated vsize (Kb) 629788

[startup+70.006 s]
Raw data (loadavg): 0.95 0.97 0.96 2/55 9361
Raw data (/proc/9361/stat): 9361 (pb2sat) R 9360 9361 4059 0 -1 0 221009 0 0 0 6521 455 0 0 25 0 1 0 22068164 699813888 131697 4294967295 134512640 135987407 3221224560 3221184248 135487934 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9361/statm): 170853 131697 364 364 0 170489 0
[pid=9361] vsize: 683412
Current children cumulated CPU time (s) 69.76
Current children cumulated vsize (Kb) 683412

[startup+80.0067 s]
Raw data (loadavg): 0.96 0.97 0.96 2/55 9361
Raw data (/proc/9361/stat): 9361 (pb2sat) R 9360 9361 4059 0 -1 0 239768 0 0 0 7486 488 0 0 25 0 1 0 22068164 724549632 150228 4294967295 134512640 135987407 3221224560 3221188432 134537371 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9361/statm): 176892 150228 364 364 0 176528 0
[pid=9361] vsize: 707568
Current children cumulated CPU time (s) 79.74
Current children cumulated vsize (Kb) 707568

[startup+90.0074 s]
Raw data (loadavg): 0.96 0.97 0.96 2/55 9361
Raw data (/proc/9361/stat): 9361 (pb2sat) R 9360 9361 4059 0 -1 0 258571 0 0 0 8446 526 0 0 25 0 1 0 22068164 749285376 168803 4294967295 134512640 135987407 3221224560 3221189744 134636949 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9361/statm): 182931 168803 364 364 0 182567 0
[pid=9361] vsize: 731724
Current children cumulated CPU time (s) 89.72
Current children cumulated vsize (Kb) 731724

[startup+100.007 s]
Raw data (loadavg): 0.97 0.97 0.96 2/55 9361
Raw data (/proc/9361/stat): 9361 (pb2sat) R 9360 9361 4059 0 -1 0 273216 0 0 0 9413 557 0 0 25 0 1 0 22068164 818950144 183270 4294967295 134512640 135987407 3221224560 3221194780 134637029 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9361/statm): 199939 183270 364 364 0 199575 0
[pid=9361] vsize: 799756
Current children cumulated CPU time (s) 99.7
Current children cumulated vsize (Kb) 799756

[startup+110.008 s]
Raw data (loadavg): 0.97 0.97 0.96 2/55 9361
Raw data (/proc/9361/stat): 9361 (pb2sat) R 9360 9361 4059 0 -1 0 281320 0 0 0 10380 589 0 0 25 0 1 0 22068164 469954560 114281 4294967295 134512640 135987407 3221224560 3221223408 134884004 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9361/statm): 114735 114281 364 364 0 114371 0
[pid=9361] vsize: 458940
Current children cumulated CPU time (s) 109.69
Current children cumulated vsize (Kb) 458940
One traced child (pid=9361) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 111.652
CPU time (s): 111.343
CPU user time (s): 105.198
CPU system time (s): 6.14506
CPU usage (%): 99.7236
Max. virtual memory (cumulated for all children) (Kb): 799756

Verifier Data

ERROR: no interpretation found !