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-scsd6.opb
MD5SUM0d5445665abfc27d4c2dc0b60a7a20c1
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 27000
Biggest coefficient in the objective function 234468721295360
Number of bits for the biggest coefficient in the objective function 48
Sum of the numbers in the objective function 311706790809100500
Number of bits of the sum of numbers in the objective function 59
Biggest number in a constraint 234468721295360
Number of bits of the biggest number in a constraint 48
Biggest sum of numbers in a constraint 311706790809100500
Number of bits of the biggest sum of numbers59
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables27000
Total number of constraints147
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 constraints147
Minimum length of a constraint400
Maximum length of a constraint800

Trace number 10304

Launcher Data

LAUNCH ON wulflinc1 THE 2005-09-23 17:48:31 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9052 boxname=wulflinc1 idbench=848 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  0d5445665abfc27d4c2dc0b60a7a20c1  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-scsd6.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-scsd6.opb
IDLAUNCH: 9052
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.228
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		: 451.228
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:        879152 kB
Buffers:         13488 kB
Cached:         124212 kB
SwapCached:          0 kB
Active:          79968 kB
Inactive:        60624 kB
HighTotal:      131008 kB
HighFree:        10444 kB
LowTotal:       903652 kB
LowFree:        868708 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6988 kB
Slab:             9352 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:50:23 (client local time) WITH STATUS 1 IN 111.464 SECONDS
stats: 9052 7 111.464 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/10586/stat): 10586 (pb2sat) R 10585 10586 4704 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22129178 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10586/statm): 373 2 364 364 0 9 0
[pid=10586] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-scsd6.opb

[startup+10.002 s]
Raw data (loadavg): 0.99 0.96 0.92 2/55 10586
Raw data (/proc/10586/stat): 10586 (pb2sat) R 10585 10586 4704 0 -1 0 2592 0 0 0 991 7 0 0 25 0 1 0 22129178 9637888 1905 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10586/statm): 2353 1905 364 364 0 1989 0
[pid=10586] vsize: 9412
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 9412

[startup+20.0028 s]
Raw data (loadavg): 0.99 0.96 0.92 2/55 10586
Raw data (/proc/10586/stat): 10586 (pb2sat) R 10585 10586 4704 0 -1 0 29761 0 0 0 1937 58 0 0 25 0 1 0 22129178 99409920 18527 4294967295 134512640 135987407 3221224560 3221061872 134877628 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10586/statm): 24270 18527 364 364 0 23906 0
[pid=10586] vsize: 97080
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 97080

[startup+30.0036 s]
Raw data (loadavg): 0.99 0.96 0.92 2/55 10586
Raw data (/proc/10586/stat): 10586 (pb2sat) R 10585 10586 4704 0 -1 0 60756 0 0 0 2868 123 0 0 25 0 1 0 22129178 196337664 38291 4294967295 134512640 135987407 3221224560 3221061312 134861892 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10586/statm): 47934 38291 364 364 0 47570 0
[pid=10586] vsize: 191736
Current children cumulated CPU time (s) 29.91
Current children cumulated vsize (Kb) 191736

[startup+40.0044 s]
Raw data (loadavg): 0.99 0.96 0.92 2/55 10586
Raw data (/proc/10586/stat): 10586 (pb2sat) R 10585 10586 4704 0 -1 0 97310 0 0 0 3796 192 0 0 25 0 1 0 22129178 382111744 64783 4294967295 134512640 135987407 3221224560 3221063792 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10586/statm): 93289 64783 364 364 0 92925 0
[pid=10586] vsize: 373156
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (Kb) 373156

[startup+50.0052 s]
Raw data (loadavg): 0.99 0.96 0.92 2/55 10586
Raw data (/proc/10586/stat): 10586 (pb2sat) R 10585 10586 4704 0 -1 0 122396 0 0 0 4745 241 0 0 25 0 1 0 22129178 389660672 77354 4294967295 134512640 135987407 3221224560 3221064940 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10586/statm): 95132 77354 364 364 0 94768 0
[pid=10586] vsize: 380528
Current children cumulated CPU time (s) 49.86
Current children cumulated vsize (Kb) 380528

[startup+60.0059 s]
Raw data (loadavg): 0.99 0.96 0.92 1/55 10586
Raw data (/proc/10586/stat): 10586 (pb2sat) T 10585 10586 4704 0 -1 0 167438 0 0 0 5655 327 0 0 25 0 1 0 22129178 533454848 101977 4294967295 134512640 135987407 3221224560 3221060168 135544177 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/10586/statm): 130238 101977 364 364 0 129874 0
[pid=10586] vsize: 520952
Current children cumulated CPU time (s) 59.82
Current children cumulated vsize (Kb) 520952

[startup+70.0067 s]
Raw data (loadavg): 0.99 0.96 0.92 2/55 10586
Raw data (/proc/10586/stat): 10586 (pb2sat) R 10585 10586 4704 0 -1 0 208513 0 0 0 6564 415 0 0 25 0 1 0 22129178 656891904 118207 4294967295 134512640 135987407 3221224560 3221063048 134636945 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10586/statm): 160374 118207 364 364 0 160010 0
[pid=10586] vsize: 641496
Current children cumulated CPU time (s) 69.79
Current children cumulated vsize (Kb) 641496

[startup+80.0075 s]
Raw data (loadavg): 0.99 0.96 0.92 2/55 10586
Raw data (/proc/10586/stat): 10586 (pb2sat) R 10585 10586 4704 0 -1 0 224927 0 0 0 7525 452 0 0 25 0 1 0 22129178 713154560 134409 4294967295 134512640 135987407 3221224560 3221064080 134537400 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10586/statm): 174110 134409 364 364 0 173746 0
[pid=10586] vsize: 696440
Current children cumulated CPU time (s) 79.77
Current children cumulated vsize (Kb) 696440

[startup+90.0083 s]
Raw data (loadavg): 0.99 0.96 0.92 2/55 10586
Raw data (/proc/10586/stat): 10586 (pb2sat) R 10585 10586 4704 0 -1 0 244311 0 0 0 8482 494 0 0 25 0 1 0 22129178 740188160 153543 4294967295 134512640 135987407 3221224560 3221060524 135499903 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10586/statm): 180710 153543 364 364 0 180346 0
[pid=10586] vsize: 722840
Current children cumulated CPU time (s) 89.76
Current children cumulated vsize (Kb) 722840

[startup+100.008 s]
Raw data (loadavg): 0.99 0.97 0.92 2/55 10586
Raw data (/proc/10586/stat): 10586 (pb2sat) R 10585 10586 4704 0 -1 0 263481 0 0 0 9439 534 0 0 25 0 1 0 22129178 766746624 172467 4294967295 134512640 135987407 3221224560 3221063868 135484951 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10586/statm): 187194 172467 364 364 0 186830 0
[pid=10586] vsize: 748776
Current children cumulated CPU time (s) 99.73
Current children cumulated vsize (Kb) 748776

[startup+110.01 s]
Raw data (loadavg): 0.99 0.97 0.92 2/55 10586
Raw data (/proc/10586/stat): 10586 (pb2sat) R 10585 10586 4704 0 -1 0 272269 0 0 0 10408 564 0 0 25 0 1 0 22129178 469667840 114043 4294967295 134512640 135987407 3221224560 3221223224 135477274 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10586/statm): 114665 114043 364 364 0 114301 0
[pid=10586] vsize: 458660
Current children cumulated CPU time (s) 109.72
Current children cumulated vsize (Kb) 458660
One traced child (pid=10586) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 111.747
CPU time (s): 111.464
CPU user time (s): 105.578
CPU system time (s): 5.8861
CPU usage (%): 99.7465
Max. virtual memory (cumulated for all children) (Kb): 748776

Verifier Data

ERROR: no interpretation found !