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/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-swath3.opb
MD5SUM2570fb3c524f5be873ba701d5990d98b
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 31
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 2147483647
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 1073741824000000
Number of bits of the biggest number in a constraint 50
Biggest sum of numbers in a constraint 4776342294353942
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 variables49335
Total number of constraints7608
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)2915
Number of constraints which are nor clauses,nor cardinality constraints4693
Minimum length of a constraint1
Maximum length of a constraint46934

Trace number 10185

Launcher Data

LAUNCH ON wulflinc12 THE 2005-09-23 17:28:37 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8945 boxname=wulflinc12 idbench=741 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  2570fb3c524f5be873ba701d5990d98b  /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-20-10-swath3.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-20-10-swath3.opb
IDLAUNCH: 8945
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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		: 451.191
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:        937492 kB
Buffers:          6168 kB
Cached:          71216 kB
SwapCached:          0 kB
Active:          25756 kB
Inactive:        54508 kB
HighTotal:      131008 kB
HighFree:        77728 kB
LowTotal:       903652 kB
LowFree:        859764 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            11264 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:31:13 (client local time) WITH STATUS 1 IN 154.784 SECONDS
stats: 8945 7 154.784 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/9652/stat): 9652 (pb2sat) R 9651 9652 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21990846 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/9652/statm): 373 2 364 364 0 9 0
[pid=9652] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-20-10-swath3.opb

[startup+10.002 s]
Raw data (loadavg): 0.87 0.93 0.95 2/55 9652
Raw data (/proc/9652/stat): 9652 (pb2sat) R 9651 9652 4060 0 -1 0 10154 0 0 0 974 23 0 0 25 0 1 0 21990846 32509952 6080 4294967295 134512640 135987407 3221224560 3221221872 134555870 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9652/statm): 7937 6080 364 364 0 7573 0
[pid=9652] vsize: 31748
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 31748

[startup+20.0028 s]
Raw data (loadavg): 0.89 0.94 0.95 2/55 9652
Raw data (/proc/9652/stat): 9652 (pb2sat) R 9651 9652 4060 0 -1 0 10199 0 0 0 1973 23 0 0 25 0 1 0 21990846 32509952 6125 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9652/statm): 7937 6125 364 364 0 7573 0
[pid=9652] vsize: 31748
Current children cumulated CPU time (s) 19.96
Current children cumulated vsize (Kb) 31748

[startup+30.0037 s]
Raw data (loadavg): 0.91 0.94 0.95 2/55 9652
Raw data (/proc/9652/stat): 9652 (pb2sat) R 9651 9652 4060 0 -1 0 10480 0 0 0 2973 24 0 0 25 0 1 0 21990846 33574912 6277 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9652/statm): 8197 6277 364 364 0 7833 0
[pid=9652] vsize: 32788
Current children cumulated CPU time (s) 29.97
Current children cumulated vsize (Kb) 32788

[startup+40.0045 s]
Raw data (loadavg): 0.92 0.94 0.95 2/55 9652
Raw data (/proc/9652/stat): 9652 (pb2sat) R 9651 9652 4060 0 -1 0 10498 0 0 0 3973 24 0 0 25 0 1 0 21990846 33574912 6295 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9652/statm): 8197 6295 364 364 0 7833 0
[pid=9652] vsize: 32788
Current children cumulated CPU time (s) 39.97
Current children cumulated vsize (Kb) 32788

[startup+50.0054 s]
Raw data (loadavg): 0.93 0.94 0.95 2/55 9652
Raw data (/proc/9652/stat): 9652 (pb2sat) R 9651 9652 4060 0 -1 0 10516 0 0 0 4973 24 0 0 25 0 1 0 21990846 33574912 6313 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9652/statm): 8197 6313 364 364 0 7833 0
[pid=9652] vsize: 32788
Current children cumulated CPU time (s) 49.97
Current children cumulated vsize (Kb) 32788

[startup+60.0052 s]
Raw data (loadavg): 0.94 0.94 0.95 2/55 9652
Raw data (/proc/9652/stat): 9652 (pb2sat) R 9651 9652 4060 0 -1 0 29865 0 0 0 5920 75 0 0 25 0 1 0 21990846 95154176 21552 4294967295 134512640 135987407 3221224560 3205578524 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9652/statm): 23231 21553 364 364 0 22867 0
[pid=9652] vsize: 92924
Current children cumulated CPU time (s) 59.95
Current children cumulated vsize (Kb) 92924

[startup+70.005 s]
Raw data (loadavg): 0.95 0.94 0.95 2/55 9652
Raw data (/proc/9652/stat): 9652 (pb2sat) R 9651 9652 4060 0 -1 0 62631 0 0 0 6846 146 0 0 25 0 1 0 21990846 194768896 40016 4294967295 134512640 135987407 3221224560 3205721148 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9652/statm): 47551 40016 364 364 0 47187 0
[pid=9652] vsize: 190204
Current children cumulated CPU time (s) 69.92
Current children cumulated vsize (Kb) 190204

[startup+80.0059 s]
Raw data (loadavg): 0.96 0.94 0.95 2/55 9652
Raw data (/proc/9652/stat): 9652 (pb2sat) R 9651 9652 4060 0 -1 0 92237 0 0 0 7786 203 0 0 25 0 1 0 21990846 292143104 59692 4294967295 134512640 135987407 3221224560 3205937692 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9652/statm): 71324 59692 364 364 0 70960 0
[pid=9652] vsize: 285296
Current children cumulated CPU time (s) 79.89
Current children cumulated vsize (Kb) 285296

[startup+90.0067 s]
Raw data (loadavg): 0.96 0.95 0.95 2/55 9652
Raw data (/proc/9652/stat): 9652 (pb2sat) R 9651 9652 4060 0 -1 0 122161 0 0 0 8719 269 0 0 25 0 1 0 21990846 370454528 77096 4294967295 134512640 135987407 3221224560 3205489184 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9652/statm): 90443 77097 364 364 0 90079 0
[pid=9652] vsize: 361772
Current children cumulated CPU time (s) 89.88
Current children cumulated vsize (Kb) 361772

[startup+100.008 s]
Raw data (loadavg): 0.97 0.95 0.95 2/55 9652
Raw data (/proc/9652/stat): 9652 (pb2sat) R 9651 9652 4060 0 -1 0 162513 0 0 0 9638 346 0 0 25 0 1 0 21990846 607985664 116277 4294967295 134512640 135987407 3221224560 3205851936 134861431 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9652/statm): 148434 116277 364 364 0 148070 0
[pid=9652] vsize: 593736
Current children cumulated CPU time (s) 99.84
Current children cumulated vsize (Kb) 593736

[startup+110.008 s]
Raw data (loadavg): 0.97 0.95 0.95 2/55 9652
Raw data (/proc/9652/stat): 9652 (pb2sat) R 9651 9652 4060 0 -1 0 180670 0 0 0 10592 390 0 0 25 0 1 0 21990846 564391936 115758 4294967295 134512640 135987407 3221224560 3206020508 135499868 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9652/statm): 137791 115758 364 364 0 137427 0
[pid=9652] vsize: 551164
Current children cumulated CPU time (s) 109.82
Current children cumulated vsize (Kb) 551164

[startup+120.008 s]
Raw data (loadavg): 0.98 0.95 0.95 2/55 9652
Raw data (/proc/9652/stat): 9652 (pb2sat) R 9651 9652 4060 0 -1 0 220917 0 0 0 11504 477 0 0 25 0 1 0 21990846 688177152 131215 4294967295 134512640 135987407 3221224560 3205864000 134557147 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9652/statm): 168012 131215 364 364 0 167648 0
[pid=9652] vsize: 672048
Current children cumulated CPU time (s) 119.81
Current children cumulated vsize (Kb) 672048

[startup+130.009 s]
Raw data (loadavg): 0.98 0.95 0.95 2/55 9652
Raw data (/proc/9652/stat): 9652 (pb2sat) R 9651 9652 4060 0 -1 0 238330 0 0 0 12464 514 0 0 25 0 1 0 21990846 747728896 148392 4294967295 134512640 135987407 3221224560 3205469456 134877726 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9652/statm): 182551 148392 364 364 0 182187 0
[pid=9652] vsize: 730204
Current children cumulated CPU time (s) 129.78
Current children cumulated vsize (Kb) 730204

[startup+140.009 s]
Raw data (loadavg): 0.98 0.95 0.95 2/55 9652
Raw data (/proc/9652/stat): 9652 (pb2sat) R 9651 9652 4060 0 -1 0 257351 0 0 0 13420 555 0 0 25 0 1 0 21990846 776785920 167159 4294967295 134512640 135987407 3221224560 3205477660 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9652/statm): 189645 167159 364 364 0 189281 0
[pid=9652] vsize: 758580
Current children cumulated CPU time (s) 139.75
Current children cumulated vsize (Kb) 758580

[startup+150.01 s]
Raw data (loadavg): 0.98 0.95 0.95 2/55 9652
Raw data (/proc/9652/stat): 9652 (pb2sat) R 9651 9652 4060 0 -1 0 263740 0 0 0 14406 568 0 0 25 0 1 0 21990846 787628032 173285 4294967295 134512640 135987407 3221224560 3221223424 134795939 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9652/statm): 192292 173285 364 364 0 191928 0
[pid=9652] vsize: 769168
Current children cumulated CPU time (s) 149.74
Current children cumulated vsize (Kb) 769168
One traced child (pid=9652) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 155.046
CPU time (s): 154.784
CPU user time (s): 148.747
CPU system time (s): 6.03708
CPU usage (%): 99.8313
Max. virtual memory (cumulated for all children) (Kb): 769168

Verifier Data

ERROR: no interpretation found !