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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-scfxm2.opb
MD5SUM62c9b9620bb6a6d25dc0851d660e9763
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 1380
Biggest coefficient in the objective function 5368709120
Number of bits for the biggest coefficient in the objective function 33
Sum of the numbers in the objective function 281320357626
Number of bits of the sum of numbers in the objective function 39
Biggest number in a constraint 53687091200000
Number of bits of the biggest number in a constraint 46
Biggest sum of numbers in a constraint 326830904793855
Number of bits of the biggest sum of numbers49
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark12.8051
Number of variables27420
Total number of constraints660
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 constraints660
Minimum length of a constraint30
Maximum length of a constraint1710

Trace number 9909

Launcher Data

LAUNCH ON wulflinc19 THE 2005-09-23 16:09:23 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8663 boxname=wulflinc19 idbench=459 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  62c9b9620bb6a6d25dc0851d660e9763  /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-scfxm2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-scfxm2.opb
IDLAUNCH: 8663
/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:        922028 kB
Buffers:         15348 kB
Cached:          77404 kB
SwapCached:          0 kB
Active:          48820 kB
Inactive:        46800 kB
HighTotal:      131008 kB
HighFree:        50176 kB
LowTotal:       903652 kB
LowFree:        871852 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            11416 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:11:16 (client local time) WITH STATUS 1 IN 112.148 SECONDS
stats: 8663 7 112.148 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/7908/stat): 7908 (pb2sat) R 7907 7908 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21514136 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/7908/statm): 373 2 364 364 0 9 0
[pid=7908] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-scfxm2.opb

[startup+10.0064 s]
Raw data (loadavg): 0.92 0.93 0.93 2/55 7908
Raw data (/proc/7908/stat): 7908 (pb2sat) R 7907 7908 4060 0 -1 0 30853 0 0 0 932 63 0 0 25 0 1 0 21514136 97165312 19712 4294967295 134512640 135987407 3221224560 3221076176 134537357 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7908/statm): 23722 19712 364 364 0 23358 0
[pid=7908] vsize: 94888
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 94888

[startup+20.0072 s]
Raw data (loadavg): 0.93 0.94 0.93 2/55 7908
Raw data (/proc/7908/stat): 7908 (pb2sat) R 7907 7908 4060 0 -1 0 61161 0 0 0 1868 125 0 0 25 0 1 0 21514136 192475136 38812 4294967295 134512640 135987407 3221224560 3221079008 134854865 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7908/statm): 46991 38812 364 364 0 46627 0
[pid=7908] vsize: 187964
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 187964

[startup+30.007 s]
Raw data (loadavg): 0.94 0.94 0.93 2/55 7908
Raw data (/proc/7908/stat): 7908 (pb2sat) R 7907 7908 4060 0 -1 0 103339 0 0 0 2782 208 0 0 25 0 1 0 21514136 323964928 58799 4294967295 134512640 135987407 3221224560 3221080904 134537425 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7908/statm): 79093 58799 364 364 0 78729 0
[pid=7908] vsize: 316372
Current children cumulated CPU time (s) 29.9
Current children cumulated vsize (Kb) 316372

[startup+40.0078 s]
Raw data (loadavg): 0.95 0.94 0.93 2/55 7908
Raw data (/proc/7908/stat): 7908 (pb2sat) R 7907 7908 4060 0 -1 0 121016 0 0 0 3745 243 0 0 25 0 1 0 21514136 382390272 76269 4294967295 134512640 135987407 3221224560 3221080012 135499903 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7908/statm): 93357 76269 364 364 0 92993 0
[pid=7908] vsize: 373428
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (Kb) 373428

[startup+50.0116 s]
Raw data (loadavg): 0.95 0.94 0.93 2/55 7908
Raw data (/proc/7908/stat): 7908 (pb2sat) R 7907 7908 4060 0 -1 0 139684 0 0 0 4714 273 0 0 25 0 1 0 21514136 407261184 94710 4294967295 134512640 135987407 3221224560 3221081552 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7908/statm): 99429 94710 364 364 0 99065 0
[pid=7908] vsize: 397716
Current children cumulated CPU time (s) 49.87
Current children cumulated vsize (Kb) 397716

[startup+60.0124 s]
Raw data (loadavg): 0.96 0.94 0.93 2/55 7908
Raw data (/proc/7908/stat): 7908 (pb2sat) R 7907 7908 4060 0 -1 0 204658 0 0 0 5579 404 0 0 25 0 1 0 21514136 644132864 115540 4294967295 134512640 135987407 3221224560 3221084044 135499906 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7908/statm): 157259 115540 364 364 0 156895 0
[pid=7908] vsize: 629036
Current children cumulated CPU time (s) 59.83
Current children cumulated vsize (Kb) 629036

[startup+70.0132 s]
Raw data (loadavg): 0.97 0.94 0.93 2/55 7908
Raw data (/proc/7908/stat): 7908 (pb2sat) R 7907 7908 4060 0 -1 0 220631 0 0 0 6547 435 0 0 25 0 1 0 21514136 699314176 131321 4294967295 134512640 135987407 3221224560 3221088848 134878632 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7908/statm): 170731 131321 364 364 0 170367 0
[pid=7908] vsize: 682924
Current children cumulated CPU time (s) 69.82
Current children cumulated vsize (Kb) 682924

[startup+80.0131 s]
Raw data (loadavg): 0.97 0.94 0.93 2/55 7908
Raw data (/proc/7908/stat): 7908 (pb2sat) R 7907 7908 4060 0 -1 0 239097 0 0 0 7509 470 0 0 25 0 1 0 21514136 723914752 149564 4294967295 134512640 135987407 3221224560 3221086064 134855001 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7908/statm): 176737 149564 364 364 0 176373 0
[pid=7908] vsize: 706948
Current children cumulated CPU time (s) 79.79
Current children cumulated vsize (Kb) 706948

[startup+90.0139 s]
Raw data (loadavg): 0.98 0.95 0.93 2/55 7908
Raw data (/proc/7908/stat): 7908 (pb2sat) R 7907 7908 4060 0 -1 0 257353 0 0 0 8471 506 0 0 25 0 1 0 21514136 748003328 167598 4294967295 134512640 135987407 3221224560 3221089728 134892990 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7908/statm): 182618 167598 364 364 0 182254 0
[pid=7908] vsize: 730472
Current children cumulated CPU time (s) 89.77
Current children cumulated vsize (Kb) 730472

[startup+100.015 s]
Raw data (loadavg): 0.98 0.95 0.93 2/55 7908
Raw data (/proc/7908/stat): 7908 (pb2sat) R 7907 7908 4060 0 -1 0 271671 0 0 0 9442 534 0 0 25 0 1 0 21514136 817131520 181743 4294967295 134512640 135987407 3221224560 3221089360 134892401 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7908/statm): 199495 181743 364 364 0 199131 0
[pid=7908] vsize: 797980
Current children cumulated CPU time (s) 99.76
Current children cumulated vsize (Kb) 797980

[startup+110.018 s]
Raw data (loadavg): 0.98 0.95 0.93 2/55 7908
Raw data (/proc/7908/stat): 7908 (pb2sat) R 7907 7908 4060 0 -1 0 281165 0 0 0 10407 567 0 0 25 0 1 0 21514136 469893120 114241 4294967295 134512640 135987407 3221224560 3221223224 135477650 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7908/statm): 114720 114241 364 364 0 114356 0
[pid=7908] vsize: 458880
Current children cumulated CPU time (s) 109.74
Current children cumulated vsize (Kb) 458880
One traced child (pid=7908) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 112.415
CPU time (s): 112.148
CPU user time (s): 106.229
CPU system time (s): 5.9191
CPU usage (%): 99.7626
Max. virtual memory (cumulated for all children) (Kb): 797980

Verifier Data

ERROR: no interpretation found !