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-e226.opb
MD5SUMbf10f3bcbd0eecac72b126009c15ff92
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 3440
Biggest coefficient in the objective function 1526532669440
Number of bits for the biggest coefficient in the objective function 41
Sum of the numbers in the objective function 44802817394775
Number of bits of the sum of numbers in the objective function 46
Biggest number in a constraint 1526532669440
Number of bits of the biggest number in a constraint 41
Biggest sum of numbers in a constraint 44802817394775
Number of bits of the biggest sum of numbers46
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.810876
Number of variables5640
Total number of constraints223
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 constraints223
Minimum length of a constraint20
Maximum length of a constraint2140

Trace number 10266

Launcher Data

LAUNCH ON wulflinc19 THE 2005-09-23 17:44:33 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9013 boxname=wulflinc19 idbench=809 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  bf10f3bcbd0eecac72b126009c15ff92  /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-13-7-e226.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-13-7-e226.opb
IDLAUNCH: 9013
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.169
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		: 451.169
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:        903688 kB
Buffers:         16016 kB
Cached:          95096 kB
SwapCached:          0 kB
Active:          47156 kB
Inactive:        66828 kB
HighTotal:      131008 kB
HighFree:        39844 kB
LowTotal:       903652 kB
LowFree:        863844 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            11432 kB
Committed_AS:    63632 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 17:46:19 (client local time) WITH STATUS 1 IN 105.884 SECONDS
stats: 9013 7 105.884 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/9530/stat): 9530 (pb2sat) R 9529 9530 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22085172 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9530/statm): 373 2 364 364 0 9 0
[pid=9530] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-13-7-e226.opb

[startup+10.0022 s]
Raw data (loadavg): 0.93 0.95 0.92 2/55 9530
Raw data (/proc/9530/stat): 9530 (pb2sat) R 9529 9530 4060 0 -1 0 30669 0 0 0 930 66 0 0 25 0 1 0 22085172 94318592 19524 4294967295 134512640 135987407 3221224560 3221033500 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9530/statm): 23027 19524 364 364 0 22663 0
[pid=9530] vsize: 92108
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 92108

[startup+20.0031 s]
Raw data (loadavg): 0.94 0.95 0.92 2/55 9530
Raw data (/proc/9530/stat): 9530 (pb2sat) R 9529 9530 4060 0 -1 0 62266 0 0 0 1864 130 0 0 25 0 1 0 22085172 190550016 39899 4294967295 134512640 135987407 3221224560 3221040896 135486786 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9530/statm): 46521 39899 364 364 0 46157 0
[pid=9530] vsize: 186084
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 186084

[startup+30.0029 s]
Raw data (loadavg): 0.95 0.95 0.92 2/55 9530
Raw data (/proc/9530/stat): 9530 (pb2sat) R 9529 9530 4060 0 -1 0 105091 0 0 0 2774 213 0 0 25 0 1 0 22085172 356519936 60528 4294967295 134512640 135987407 3221224560 3221050816 134877708 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9530/statm): 87041 60528 364 364 0 86677 0
[pid=9530] vsize: 348164
Current children cumulated CPU time (s) 29.87
Current children cumulated vsize (Kb) 348164

[startup+40.0037 s]
Raw data (loadavg): 0.95 0.95 0.92 2/55 9530
Raw data (/proc/9530/stat): 9530 (pb2sat) R 9529 9530 4060 0 -1 0 123856 0 0 0 3734 252 0 0 25 0 1 0 22085172 380985344 79067 4294967295 134512640 135987407 3221224560 3221221364 135479922 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9530/statm): 93014 79067 364 364 0 92650 0
[pid=9530] vsize: 372056
Current children cumulated CPU time (s) 39.86
Current children cumulated vsize (Kb) 372056

[startup+50.0045 s]
Raw data (loadavg): 0.96 0.95 0.92 2/55 9530
Raw data (/proc/9530/stat): 9530 (pb2sat) R 9529 9530 4060 0 -1 0 149291 0 0 0 4684 300 0 0 25 0 1 0 22085172 548331520 103818 4294967295 134512640 135987407 3221224560 3221111948 134854866 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9530/statm): 133870 103818 364 364 0 133506 0
[pid=9530] vsize: 535480
Current children cumulated CPU time (s) 49.84
Current children cumulated vsize (Kb) 535480

[startup+60.0053 s]
Raw data (loadavg): 0.97 0.95 0.92 2/55 9530
Raw data (/proc/9530/stat): 9530 (pb2sat) R 9529 9530 4060 0 -1 0 199127 0 0 0 5581 401 0 0 25 0 1 0 22085172 609185792 109966 4294967295 134512640 135987407 3221224560 3221124464 134878675 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9530/statm): 148727 109966 364 364 0 148363 0
[pid=9530] vsize: 594908
Current children cumulated CPU time (s) 59.82
Current children cumulated vsize (Kb) 594908

[startup+70.0061 s]
Raw data (loadavg): 0.97 0.96 0.92 2/55 9530
Raw data (/proc/9530/stat): 9530 (pb2sat) R 9529 9530 4060 0 -1 0 211376 0 0 0 6556 425 0 0 25 0 1 0 22085172 648011776 122019 4294967295 134512640 135987407 3221224560 3221119568 134558660 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9530/statm): 158206 122019 364 364 0 157842 0
[pid=9530] vsize: 632824
Current children cumulated CPU time (s) 69.81
Current children cumulated vsize (Kb) 632824

[startup+80.0059 s]
Raw data (loadavg): 0.97 0.96 0.92 2/55 9530
Raw data (/proc/9530/stat): 9530 (pb2sat) R 9529 9530 4060 0 -1 0 225924 0 0 0 7530 451 0 0 25 0 1 0 22085172 655720448 136340 4294967295 134512640 135987407 3221224560 3221131068 135485066 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9530/statm): 160088 136340 364 364 0 159724 0
[pid=9530] vsize: 640352
Current children cumulated CPU time (s) 79.81
Current children cumulated vsize (Kb) 640352

[startup+90.0067 s]
Raw data (loadavg): 0.98 0.96 0.92 2/55 9530
Raw data (/proc/9530/stat): 9530 (pb2sat) R 9529 9530 4060 0 -1 0 244387 0 0 0 8496 484 0 0 25 0 1 0 22085172 679374848 154577 4294967295 134512640 135987407 3221224560 3221125232 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9530/statm): 165863 154577 364 364 0 165499 0
[pid=9530] vsize: 663452
Current children cumulated CPU time (s) 89.8
Current children cumulated vsize (Kb) 663452

[startup+100.007 s]
Raw data (loadavg): 0.98 0.96 0.92 2/55 9530
Raw data (/proc/9530/stat): 9530 (pb2sat) R 9529 9530 4060 0 -1 0 259397 0 0 0 9466 513 0 0 25 0 1 0 22085172 749305856 169405 4294967295 134512640 135987407 3221224560 3221124608 134558474 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9530/statm): 182936 169405 364 364 0 182572 0
[pid=9530] vsize: 731744
Current children cumulated CPU time (s) 99.79
Current children cumulated vsize (Kb) 731744
One traced child (pid=9530) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 106.104
CPU time (s): 105.884
CPU user time (s): 100.328
CPU system time (s): 5.55615
CPU usage (%): 99.7927
Max. virtual memory (cumulated for all children) (Kb): 731744

Verifier Data

ERROR: no interpretation found !