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/plato.asu.edu/pub/milp/normalized-mps-v2-13-7-swath2.opb
MD5SUM0c26e65f0a67107cc10849baae774e12
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 21
Biggest coefficient in the objective function 1048576
Number of bits for the biggest coefficient in the objective function 21
Sum of the numbers in the objective function 2097151
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 1048576000000
Number of bits of the biggest number in a constraint 40
Biggest sum of numbers in a constraint 202485512285885
Number of bits of the biggest sum of numbers48
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables38571
Total number of constraints7608
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)2599
Number of constraints which are nor clauses,nor cardinality constraints5009
Minimum length of a constraint1
Maximum length of a constraint36970

Trace number 10567

Launcher Data

LAUNCH ON wulflinc10 THE 2005-09-23 19:05:57 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9329 boxname=wulflinc10 idbench=1125 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  0c26e65f0a67107cc10849baae774e12  /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-13-7-swath2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-13-7-swath2.opb
IDLAUNCH: 9329
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.193
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		: 451.193
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:        922208 kB
Buffers:         12808 kB
Cached:          82120 kB
SwapCached:          0 kB
Active:          50464 kB
Inactive:        47400 kB
HighTotal:      131008 kB
HighFree:        44884 kB
LowTotal:       903652 kB
LowFree:        877324 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              32 kB
Writeback:           0 kB
Mapped:           6976 kB
Slab:             8964 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 19:08:03 (client local time) WITH STATUS 1 IN 125.251 SECONDS
stats: 9329 7 125.251 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/10110/stat): 10110 (pb2sat) R 10109 10110 4061 0 -1 0 18 0 0 0 0 0 0 0 20 0 1 0 22576751 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/10110/statm): 373 2 364 364 0 9 0
[pid=10110] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-13-7-swath2.opb

[startup+10.0021 s]
Raw data (loadavg): 0.92 0.94 0.91 2/55 10110
Raw data (/proc/10110/stat): 10110 (pb2sat) R 10109 10110 4061 0 -1 0 8383 0 0 0 977 19 0 0 25 0 1 0 22576751 27750400 5098 4294967295 134512640 135987407 3221224560 3221221872 134555861 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10110/statm): 6775 5098 364 364 0 6411 0
[pid=10110] vsize: 27100
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 27100

[startup+20.0027 s]
Raw data (loadavg): 0.93 0.94 0.91 2/55 10110
Raw data (/proc/10110/stat): 10110 (pb2sat) R 10109 10110 4061 0 -1 0 8424 0 0 0 1977 20 0 0 25 0 1 0 22576751 27750400 5139 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10110/statm): 6775 5139 364 364 0 6411 0
[pid=10110] vsize: 27100
Current children cumulated CPU time (s) 19.97
Current children cumulated vsize (Kb) 27100

[startup+30.0032 s]
Raw data (loadavg): 0.94 0.94 0.91 2/55 10110
Raw data (/proc/10110/stat): 10110 (pb2sat) R 10109 10110 4061 0 -1 0 8706 0 0 0 2976 20 0 0 25 0 1 0 22576751 28815360 5292 4294967295 134512640 135987407 3221224560 3221221872 134555871 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10110/statm): 7035 5292 364 364 0 6671 0
[pid=10110] vsize: 28140
Current children cumulated CPU time (s) 29.96
Current children cumulated vsize (Kb) 28140

[startup+40.0038 s]
Raw data (loadavg): 0.95 0.94 0.91 2/55 10110
Raw data (/proc/10110/stat): 10110 (pb2sat) R 10109 10110 4061 0 -1 0 44824 0 0 0 3889 105 0 0 25 0 1 0 22576751 148832256 28515 4294967295 134512640 135987407 3221224560 3208903404 135480997 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10110/statm): 36336 28515 364 364 0 35972 0
[pid=10110] vsize: 145344
Current children cumulated CPU time (s) 39.94
Current children cumulated vsize (Kb) 145344

[startup+50.0043 s]
Raw data (loadavg): 0.96 0.94 0.91 2/55 10110
Raw data (/proc/10110/stat): 10110 (pb2sat) R 10109 10110 4061 0 -1 0 82652 0 0 0 4807 182 0 0 25 0 1 0 22576751 310784000 59460 4294967295 134512640 135987407 3221224560 3208816128 134861437 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10110/statm): 75875 59460 364 364 0 75511 0
[pid=10110] vsize: 303500
Current children cumulated CPU time (s) 49.89
Current children cumulated vsize (Kb) 303500

[startup+60.0049 s]
Raw data (loadavg): 0.96 0.94 0.91 2/55 10110
Raw data (/proc/10110/stat): 10110 (pb2sat) R 10109 10110 4061 0 -1 0 113755 0 0 0 5735 252 0 0 25 0 1 0 22576751 354054144 68805 4294967295 134512640 135987407 3221224560 3208843580 135499868 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10110/statm): 86439 68805 364 364 0 86075 0
[pid=10110] vsize: 345756
Current children cumulated CPU time (s) 59.87
Current children cumulated vsize (Kb) 345756

[startup+70.0045 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 10110
Raw data (/proc/10110/stat): 10110 (pb2sat) R 10109 10110 4061 0 -1 0 133060 0 0 0 6689 296 0 0 25 0 1 0 22576751 418209792 87857 4294967295 134512640 135987407 3221224560 3211976588 134641848 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10110/statm): 102102 87857 364 364 0 101738 0
[pid=10110] vsize: 408408
Current children cumulated CPU time (s) 69.85
Current children cumulated vsize (Kb) 408408

[startup+80.006 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 10110
Raw data (/proc/10110/stat): 10110 (pb2sat) R 10109 10110 4061 0 -1 0 176241 0 0 0 7597 383 0 0 25 0 1 0 22576751 556224512 111399 4294967295 134512640 135987407 3221224560 3209475404 134636959 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10110/statm): 135797 111399 364 364 0 135433 0
[pid=10110] vsize: 543188
Current children cumulated CPU time (s) 79.8
Current children cumulated vsize (Kb) 543188

[startup+90.0066 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 10110
Raw data (/proc/10110/stat): 10110 (pb2sat) R 10109 10110 4061 0 -1 0 217930 0 0 0 8499 480 0 0 25 0 1 0 22576751 681893888 128279 4294967295 134512640 135987407 3221224560 3209379980 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10110/statm): 166478 128279 364 364 0 166114 0
[pid=10110] vsize: 665912
Current children cumulated CPU time (s) 89.79
Current children cumulated vsize (Kb) 665912

[startup+100.006 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 10110
Raw data (/proc/10110/stat): 10110 (pb2sat) R 10109 10110 4061 0 -1 0 236387 0 0 0 9454 522 0 0 25 0 1 0 22576751 742760448 146485 4294967295 134512640 135987407 3221224560 3208810976 134877708 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10110/statm): 181338 146485 364 364 0 180974 0
[pid=10110] vsize: 725352
Current children cumulated CPU time (s) 99.76
Current children cumulated vsize (Kb) 725352

[startup+110.007 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 10110
Raw data (/proc/10110/stat): 10110 (pb2sat) R 10109 10110 4061 0 -1 0 254576 0 0 0 10411 564 0 0 25 0 1 0 22576751 771379200 164428 4294967295 134512640 135987407 3221224560 3208800716 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10110/statm): 188325 164428 364 364 0 187961 0
[pid=10110] vsize: 753300
Current children cumulated CPU time (s) 109.75
Current children cumulated vsize (Kb) 753300

[startup+120.007 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 10110
Raw data (/proc/10110/stat): 10110 (pb2sat) R 10109 10110 4061 0 -1 0 264090 0 0 0 11388 586 0 0 25 0 1 0 22576751 787996672 173675 4294967295 134512640 135987407 3221224560 3221223060 135478476 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10110/statm): 192382 173675 364 364 0 192018 0
[pid=10110] vsize: 769528
Current children cumulated CPU time (s) 119.74
Current children cumulated vsize (Kb) 769528
One traced child (pid=10110) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 125.514
CPU time (s): 125.251
CPU user time (s): 119.038
CPU system time (s): 6.21306
CPU usage (%): 99.7901
Max. virtual memory (cumulated for all children) (Kb): 769528

Verifier Data

ERROR: no interpretation found !