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/MIPLIB/miplib3/normalized-mps-v2-13-7-gt2.opb
MD5SUMf1382105ee9fb79777762a53cf6a73c1
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 21166
Optimality of the best value was proved YES
Number of terms in the objective function 304
Biggest coefficient in the objective function 62376
Number of bits for the biggest coefficient in the objective function 16
Sum of the numbers in the objective function 3092598
Number of bits of the sum of numbers in the objective function 22
Biggest number in a constraint 62376
Number of bits of the biggest number in a constraint 16
Biggest sum of numbers in a constraint 3092598
Number of bits of the biggest sum of numbers22
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark29.0836
Number of variables556
Total number of constraints217
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)26
Number of constraints which are nor clauses,nor cardinality constraints191
Minimum length of a constraint1
Maximum length of a constraint48

Trace number 10460

Launcher Data

LAUNCH ON wulflinc29 THE 2005-09-23 18:28:53 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9222 boxname=wulflinc29 idbench=1018 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  f1382105ee9fb79777762a53cf6a73c1  /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-13-7-gt2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-13-7-gt2.opb
IDLAUNCH: 9222
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.077
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		: 451.077
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:        913916 kB
Buffers:         12680 kB
Cached:          91156 kB
SwapCached:          0 kB
Active:          51904 kB
Inactive:        54816 kB
HighTotal:      131008 kB
HighFree:        40264 kB
LowTotal:       903652 kB
LowFree:        873652 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8476 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 18:30:43 (client local time) WITH STATUS 1 IN 109.138 SECONDS
stats: 9222 7 109.138 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 266910
c small objective detected

	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/10902/stat): 10902 (pb2sat) R 10901 10902 4005 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 22313254 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10902/statm): 373 2 364 364 0 9 0
[pid=10902] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-13-7-gt2.opb

[startup+10.0027 s]
Raw data (loadavg): 0.93 0.96 0.91 2/55 10902
Raw data (/proc/10902/stat): 10902 (pb2sat) R 10901 10902 4005 0 -1 0 31043 0 0 0 928 66 0 0 25 0 1 0 22313254 98066432 19843 4294967295 134512640 135987407 3221224560 3221138796 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10902/statm): 23942 19843 364 364 0 23578 0
[pid=10902] vsize: 95768
Current children cumulated CPU time (s) 9.94
Current children cumulated vsize (Kb) 95768

[startup+20.0035 s]
Raw data (loadavg): 0.94 0.96 0.91 2/55 10902
Raw data (/proc/10902/stat): 10902 (pb2sat) R 10901 10902 4005 0 -1 0 62215 0 0 0 1865 127 0 0 25 0 1 0 22313254 195665920 39793 4294967295 134512640 135987407 3221224560 3221158156 135488064 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10902/statm): 47770 39793 364 364 0 47406 0
[pid=10902] vsize: 191080
Current children cumulated CPU time (s) 19.92
Current children cumulated vsize (Kb) 191080

[startup+30.0033 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 10902
Raw data (/proc/10902/stat): 10902 (pb2sat) R 10901 10902 4005 0 -1 0 104747 0 0 0 2776 210 0 0 25 0 1 0 22313254 327720960 60126 4294967295 134512640 135987407 3221224560 3221131824 134887822 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10902/statm): 80010 60126 364 364 0 79646 0
[pid=10902] vsize: 320040
Current children cumulated CPU time (s) 29.86
Current children cumulated vsize (Kb) 320040

[startup+40.0041 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 10902
Raw data (/proc/10902/stat): 10902 (pb2sat) R 10901 10902 4005 0 -1 0 123378 0 0 0 3735 249 0 0 25 0 1 0 22313254 388448256 78537 4294967295 134512640 135987407 3221224560 3221146596 134559711 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10902/statm): 94836 78537 364 364 0 94472 0
[pid=10902] vsize: 379344
Current children cumulated CPU time (s) 39.84
Current children cumulated vsize (Kb) 379344

[startup+50.0049 s]
Raw data (loadavg): 0.96 0.96 0.91 2/55 10902
Raw data (/proc/10902/stat): 10902 (pb2sat) R 10901 10902 4005 0 -1 0 158942 0 0 0 4662 318 0 0 25 0 1 0 22313254 585871360 113264 4294967295 134512640 135987407 3221224560 3221143728 134856473 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10902/statm): 143035 113264 364 364 0 142671 0
[pid=10902] vsize: 572140
Current children cumulated CPU time (s) 49.8
Current children cumulated vsize (Kb) 572140

[startup+60.0057 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 10902
Raw data (/proc/10902/stat): 10902 (pb2sat) R 10901 10902 4005 0 -1 0 207836 0 0 0 5552 425 0 0 25 0 1 0 22313254 652152832 118613 4294967295 134512640 135987407 3221224560 3221132480 134560683 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10902/statm): 159217 118613 364 364 0 158853 0
[pid=10902] vsize: 636868
Current children cumulated CPU time (s) 59.77
Current children cumulated vsize (Kb) 636868

[startup+70.0065 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 10902
Raw data (/proc/10902/stat): 10902 (pb2sat) R 10901 10902 4005 0 -1 0 224200 0 0 0 6521 455 0 0 25 0 1 0 22313254 708706304 134780 4294967295 134512640 135987407 3221224560 3221121324 134636956 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10902/statm): 173024 134780 364 364 0 172660 0
[pid=10902] vsize: 692096
Current children cumulated CPU time (s) 69.76
Current children cumulated vsize (Kb) 692096

[startup+80.0062 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 10902
Raw data (/proc/10902/stat): 10902 (pb2sat) R 10901 10902 4005 0 -1 0 243886 0 0 0 7480 494 0 0 25 0 1 0 22313254 738103296 154236 4294967295 134512640 135987407 3221224560 3221147256 134765285 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10902/statm): 180201 154236 364 364 0 179837 0
[pid=10902] vsize: 720804
Current children cumulated CPU time (s) 79.74
Current children cumulated vsize (Kb) 720804

[startup+90.007 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 10902
Raw data (/proc/10902/stat): 10902 (pb2sat) R 10901 10902 4005 0 -1 0 263111 0 0 0 8440 531 0 0 25 0 1 0 22313254 765739008 173233 4294967295 134512640 135987407 3221224560 3221159232 134878046 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10902/statm): 186948 173233 364 364 0 186584 0
[pid=10902] vsize: 747792
Current children cumulated CPU time (s) 89.71
Current children cumulated vsize (Kb) 747792

[startup+100.007 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 10902
Raw data (/proc/10902/stat): 10902 (pb2sat) R 10901 10902 4005 0 -1 0 277853 0 0 0 9410 560 0 0 25 0 1 0 22313254 836481024 187799 4294967295 134512640 135987407 3221224560 3221143120 134861892 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10902/statm): 204219 187799 364 364 0 203855 0
[pid=10902] vsize: 816876
Current children cumulated CPU time (s) 99.7
Current children cumulated vsize (Kb) 816876
One traced child (pid=10902) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 109.442
CPU time (s): 109.138
CPU user time (s): 103.076
CPU system time (s): 6.06208
CPU usage (%): 99.7222
Max. virtual memory (cumulated for all children) (Kb): 816876

Verifier Data

ERROR: no interpretation found !