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/unibo/normalized-mps-v2-20-10-sp97ar.opb
MD5SUM978e3479aff123296d0a3461e698e01d
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 5731357624
Optimality of the best value was proved NO
Number of terms in the objective function 14101
Biggest coefficient in the objective function 292878668
Number of bits for the biggest coefficient in the objective function 29
Sum of the numbers in the objective function 975388850291
Number of bits of the sum of numbers in the objective function 40
Biggest number in a constraint 292878668
Number of bits of the biggest number in a constraint 29
Biggest sum of numbers in a constraint 975388850291
Number of bits of the biggest sum of numbers40
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark
Number of variables14101
Total number of constraints15862
Number of constraints which are clauses181
Number of constraints which are cardinality constraints (but not clauses)15263
Number of constraints which are nor clauses,nor cardinality constraints418
Minimum length of a constraint1
Maximum length of a constraint2463

Trace number 10220

Launcher Data

LAUNCH ON wulflinc31 THE 2005-09-23 17:39:53 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8974 boxname=wulflinc31 idbench=770 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  978e3479aff123296d0a3461e698e01d  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-20-10-sp97ar.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-20-10-sp97ar.opb
IDLAUNCH: 8974
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.047
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		: 451.047
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:        914812 kB
Buffers:         19320 kB
Cached:          81252 kB
SwapCached:          0 kB
Active:          46768 kB
Inactive:        56684 kB
HighTotal:      131008 kB
HighFree:        45920 kB
LowTotal:       903652 kB
LowFree:        868892 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:            10756 kB
Committed_AS:    63664 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 17:41:50 (client local time) WITH STATUS 1 IN 115.955 SECONDS
stats: 8974 7 115.955 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 25276099135
c big objective detected
c trying from 0 to 511

	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/9427/stat): 9427 (pb2sat) R 9426 9427 4005 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22016305 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/9427/statm): 373 2 364 364 0 9 0
[pid=9427] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-20-10-sp97ar.opb

[startup+10.0025 s]
Raw data (loadavg): 0.93 0.98 0.95 2/55 9427
Raw data (/proc/9427/stat): 9427 (pb2sat) R 9426 9427 4005 0 -1 0 13318 0 0 0 966 31 0 0 25 0 1 0 22016305 44617728 7796 4294967295 134512640 135987407 3221224560 3220698352 134877708 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9427/statm): 10893 7796 364 364 0 10529 0
[pid=9427] vsize: 43572
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 43572

[startup+20.0034 s]
Raw data (loadavg): 0.94 0.98 0.95 2/55 9427
Raw data (/proc/9427/stat): 9427 (pb2sat) R 9426 9427 4005 0 -1 0 37837 0 0 0 1906 88 0 0 25 0 1 0 22016305 115273728 21769 4294967295 134512640 135987407 3221224560 3221221952 134615182 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9427/statm): 28143 21769 364 364 0 27779 0
[pid=9427] vsize: 112572
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 112572

[startup+30.0043 s]
Raw data (loadavg): 0.95 0.98 0.95 2/55 9427
Raw data (/proc/9427/stat): 9427 (pb2sat) R 9426 9427 4005 0 -1 0 55848 0 0 0 2860 132 0 0 25 0 1 0 22016305 162762752 33435 4294967295 134512640 135987407 3221224560 3221221888 134612855 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9427/statm): 39737 33435 364 364 0 39373 0
[pid=9427] vsize: 158948
Current children cumulated CPU time (s) 29.92
Current children cumulated vsize (Kb) 158948

[startup+40.0052 s]
Raw data (loadavg): 0.96 0.98 0.95 2/55 9427
Raw data (/proc/9427/stat): 9427 (pb2sat) R 9426 9427 4005 0 -1 0 91719 0 0 0 3782 207 0 0 25 0 1 0 22016305 279363584 47152 4294967295 134512640 135987407 3221224560 3221221904 134612797 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9427/statm): 68204 47152 364 364 0 67840 0
[pid=9427] vsize: 272816
Current children cumulated CPU time (s) 39.89
Current children cumulated vsize (Kb) 272816

[startup+50.0062 s]
Raw data (loadavg): 0.96 0.98 0.95 2/55 9427
Raw data (/proc/9427/stat): 9427 (pb2sat) R 9426 9427 4005 0 -1 0 103475 0 0 0 4749 238 0 0 25 0 1 0 22016305 329420800 57331 4294967295 134512640 135987407 3221224560 3221223248 134811839 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9427/statm): 80425 57331 364 364 0 80061 0
[pid=9427] vsize: 321700
Current children cumulated CPU time (s) 49.87
Current children cumulated vsize (Kb) 321700

[startup+60.0061 s]
Raw data (loadavg): 0.97 0.98 0.95 2/55 9427
Raw data (/proc/9427/stat): 9427 (pb2sat) R 9426 9427 4005 0 -1 0 122601 0 0 0 5696 284 0 0 25 0 1 0 22016305 362147840 76218 4294967295 134512640 135987407 3221224560 3219353072 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9427/statm): 88415 76218 364 364 0 88051 0
[pid=9427] vsize: 353660
Current children cumulated CPU time (s) 59.8
Current children cumulated vsize (Kb) 353660

[startup+70.006 s]
Raw data (loadavg): 0.97 0.98 0.95 2/55 9427
Raw data (/proc/9427/stat): 9427 (pb2sat) R 9426 9427 4005 0 -1 0 164069 0 0 0 6607 369 0 0 25 0 1 0 22016305 495497216 98059 4294967295 134512640 135987407 3221224560 3218045548 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9427/statm): 120971 98059 364 364 0 120607 0
[pid=9427] vsize: 483884
Current children cumulated CPU time (s) 69.76
Current children cumulated vsize (Kb) 483884

[startup+80.007 s]
Raw data (loadavg): 0.98 0.98 0.95 2/55 9427
Raw data (/proc/9427/stat): 9427 (pb2sat) R 9426 9427 4005 0 -1 0 205170 0 0 0 7515 459 0 0 25 0 1 0 22016305 620625920 114358 4294967295 134512640 135987407 3221224560 3217855760 134878092 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9427/statm): 151520 114358 364 364 0 151156 0
[pid=9427] vsize: 606080
Current children cumulated CPU time (s) 79.74
Current children cumulated vsize (Kb) 606080

[startup+90.0069 s]
Raw data (loadavg): 0.98 0.98 0.95 2/55 9427
Raw data (/proc/9427/stat): 9427 (pb2sat) R 9426 9427 4005 0 -1 0 221387 0 0 0 8478 494 0 0 25 0 1 0 22016305 678916096 130359 4294967295 134512640 135987407 3221224560 3217995980 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9427/statm): 165751 130360 364 364 0 165387 0
[pid=9427] vsize: 663004
Current children cumulated CPU time (s) 89.72
Current children cumulated vsize (Kb) 663004

[startup+100.008 s]
Raw data (loadavg): 0.98 0.98 0.95 2/55 9427
Raw data (/proc/9427/stat): 9427 (pb2sat) R 9426 9427 4005 0 -1 0 241381 0 0 0 9432 538 0 0 25 0 1 0 22016305 712167424 150100 4294967295 134512640 135987407 3221224560 3218726000 134878060 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9427/statm): 173869 150101 364 364 0 173505 0
[pid=9427] vsize: 695476
Current children cumulated CPU time (s) 99.7
Current children cumulated vsize (Kb) 695476

[startup+110.008 s]
Raw data (loadavg): 0.98 0.98 0.95 2/55 9427
Raw data (/proc/9427/stat): 9427 (pb2sat) R 9426 9427 4005 0 -1 0 258566 0 0 0 10391 576 0 0 25 0 1 0 22016305 741470208 167011 4294967295 134512640 135987407 3221224560 3221222836 134562648 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9427/statm): 181023 167011 364 364 0 180659 0
[pid=9427] vsize: 724092
Current children cumulated CPU time (s) 109.67
Current children cumulated vsize (Kb) 724092
One traced child (pid=9427) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 116.29
CPU time (s): 115.955
CPU user time (s): 109.855
CPU system time (s): 6.10007
CPU usage (%): 99.7124
Max. virtual memory (cumulated for all children) (Kb): 724092

Verifier Data

ERROR: no interpretation found !