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-neos19.opb
MD5SUM807e897c82c7100925712510cfaeeca1
Bench Categoryoptimization, small integers (OPTSMALLINT)
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 1611
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 1611
Number of bits of the sum of numbers in the objective function 11
Biggest number in a constraint 3072
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 12240
Number of bits of the biggest sum of numbers14
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables760312
Total number of constraints137871
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)10091
Number of constraints which are nor clauses,nor cardinality constraints127780
Minimum length of a constraint1
Maximum length of a constraint268

Trace number 10560

Launcher Data

LAUNCH ON wulflinc10 THE 2005-09-23 18:59:53 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9314 boxname=wulflinc10 idbench=1110 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  807e897c82c7100925712510cfaeeca1  /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-13-7-neos19.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-13-7-neos19.opb
IDLAUNCH: 9314
/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:        883876 kB
Buffers:         12592 kB
Cached:         120552 kB
SwapCached:          0 kB
Active:          89960 kB
Inactive:        46092 kB
HighTotal:      131008 kB
HighFree:         6552 kB
LowTotal:       903652 kB
LowFree:        877324 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:               0 kB
Writeback:           0 kB
Mapped:           6976 kB
Slab:             9136 kB
Committed_AS:    63632 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 19:01:55 (client local time) WITH STATUS 0 IN 120.434 SECONDS
stats: 9314 7 120.434 0

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
s UNKNOWN

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/9712/stat): 9712 (pb2sat) R 9711 9712 4061 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22540385 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9712/statm): 373 2 364 364 0 9 0
[pid=9712] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-13-7-neos19.opb

[startup+10.0015 s]
Raw data (loadavg): 0.91 0.97 0.92 2/56 9713
Raw data (/proc/9712/stat): 9712 (pb2sat) R 9711 9712 4061 0 -1 0 165 0 0 0 995 3 0 0 25 0 1 0 22540385 1806336 146 4294967295 134512640 135987407 3221224560 3221221904 134612690 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9712/statm): 441 146 364 364 0 77 0
[pid=9712] vsize: 1764
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 1764

[startup+20.0021 s]
Raw data (loadavg): 0.93 0.97 0.92 2/55 9767
Raw data (/proc/9712/stat): 9712 (pb2sat) R 9711 9712 4061 0 -1 0 16704 0 0 0 1946 48 0 0 25 0 1 0 22540385 53047296 10233 4294967295 134512640 135987407 3221224560 3221221836 134669201 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9712/statm): 12951 10233 364 364 0 12587 0
[pid=9712] vsize: 51804
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 51804

[startup+30.0016 s]
Raw data (loadavg): 0.94 0.97 0.92 2/55 9767
Raw data (/proc/9712/stat): 9712 (pb2sat) R 9711 9712 4061 0 -1 0 35432 0 0 0 2903 88 0 0 25 0 1 0 22540385 107143168 22366 4294967295 134512640 135987407 3221224560 3221221296 134856714 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9712/statm): 26158 22366 364 364 0 25794 0
[pid=9712] vsize: 104632
Current children cumulated CPU time (s) 29.91
Current children cumulated vsize (Kb) 104632

[startup+40.0022 s]
Raw data (loadavg): 0.95 0.97 0.92 2/55 9767
Raw data (/proc/9712/stat): 9712 (pb2sat) R 9711 9712 4061 0 -1 0 61127 0 0 0 3843 145 0 0 25 0 1 0 22540385 231591936 44307 4294967295 134512640 135987407 3221224560 3221221296 134892744 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9712/statm): 56541 44307 364 364 0 56177 0
[pid=9712] vsize: 226164
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (Kb) 226164

[startup+50.0027 s]
Raw data (loadavg): 0.95 0.97 0.92 2/55 9767
Raw data (/proc/9712/stat): 9712 (pb2sat) R 9711 9712 4061 0 -1 0 78205 0 0 0 4794 192 0 0 25 0 1 0 22540385 239149056 45824 4294967295 134512640 135987407 3221224560 3221221904 134612784 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9712/statm): 58386 45824 364 364 0 58022 0
[pid=9712] vsize: 233544
Current children cumulated CPU time (s) 49.86
Current children cumulated vsize (Kb) 233544

[startup+60.0023 s]
Raw data (loadavg): 0.96 0.97 0.92 2/55 9767
Raw data (/proc/9712/stat): 9712 (pb2sat) R 9711 9712 4061 0 -1 0 88489 0 0 0 5761 222 0 0 25 0 1 0 22540385 271740928 55912 4294967295 134512640 135987407 3221224560 3221221296 134856636 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9712/statm): 66343 55912 364 364 0 65979 0
[pid=9712] vsize: 265372
Current children cumulated CPU time (s) 59.83
Current children cumulated vsize (Kb) 265372

[startup+70.0029 s]
Raw data (loadavg): 1.05 0.99 0.93 2/55 9769
Raw data (/proc/9712/stat): 9712 (pb2sat) R 9711 9712 4061 0 -1 0 124412 0 0 0 6674 304 0 0 25 0 1 0 22540385 395493376 72235 4294967295 134512640 135987407 3221224560 3221218528 134856487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9712/statm): 96556 72235 364 364 0 96192 0
[pid=9712] vsize: 386224
Current children cumulated CPU time (s) 69.78
Current children cumulated vsize (Kb) 386224

[startup+80.0034 s]
Raw data (loadavg): 1.04 0.99 0.93 2/55 9769
Raw data (/proc/9712/stat): 9712 (pb2sat) R 9711 9712 4061 0 -1 0 135202 0 0 0 7639 337 0 0 25 0 1 0 22540385 412119040 82820 4294967295 134512640 135987407 3221224560 3221220064 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9712/statm): 100615 82820 364 364 0 100251 0
[pid=9712] vsize: 402460
Current children cumulated CPU time (s) 79.76
Current children cumulated vsize (Kb) 402460

[startup+90.004 s]
Raw data (loadavg): 1.03 0.99 0.93 2/55 9773
Raw data (/proc/9712/stat): 9712 (pb2sat) R 9711 9712 4061 0 -1 0 157420 0 0 0 8578 396 0 0 25 0 1 0 22540385 477589504 92560 4294967295 134512640 135987407 3221224560 3221221728 134566717 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9712/statm): 116599 92560 364 364 0 116235 0
[pid=9712] vsize: 466396
Current children cumulated CPU time (s) 89.74
Current children cumulated vsize (Kb) 466396

[startup+100.005 s]
Raw data (loadavg): 1.03 0.99 0.93 2/55 9773
Raw data (/proc/9712/stat): 9712 (pb2sat) R 9711 9712 4061 0 -1 0 168753 0 0 0 9547 425 0 0 25 0 1 0 22540385 501448704 103701 4294967295 134512640 135987407 3221224560 3221198560 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9712/statm): 122424 103701 364 364 0 122060 0
[pid=9712] vsize: 489696
Current children cumulated CPU time (s) 99.72
Current children cumulated vsize (Kb) 489696

[startup+110.005 s]
Raw data (loadavg): 1.02 0.99 0.93 2/55 9773
Raw data (/proc/9712/stat): 9712 (pb2sat) R 9711 9712 4061 0 -1 0 185517 0 0 0 10498 473 0 0 25 0 1 0 22540385 516493312 120218 4294967295 134512640 135987407 3221224560 3221217232 134639025 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9712/statm): 126097 120218 364 364 0 125733 0
[pid=9712] vsize: 504388
Current children cumulated CPU time (s) 109.71
Current children cumulated vsize (Kb) 504388



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+119.452 s]
Raw data (loadavg): 1.02 0.99 0.93 1/55 9773
Raw data (/proc/9712/stat): 9712 (pb2sat) T 9711 9712 4061 0 -1 0 230624 0 0 0 11338 577 0 0 25 0 1 0 22540385 943759360 140155 4294967295 134512640 135987407 3221224560 3221215532 135635874 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/9712/statm): 230410 140155 364 364 0 230046 0
[pid=9712] vsize: 921640
Current children cumulated CPU time (s) 119.15
Current children cumulated vsize (Kb) 921640

Sending SIGTERM to -9712
Sleeping 2 seconds

[startup+120.006 s]
Raw data (loadavg): 1.02 0.99 0.93 2/56 9774
Raw data (/proc/9712/stat): 9712 (pb2sat) R 9711 9712 4061 0 -1 0 230625 0 0 0 11393 577 0 0 25 0 1 0 22540385 943759360 140156 4294967295 134512640 135987407 3221224560 3221213996 135270425 0 16384 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9712/statm): 230410 140156 364 364 0 230046 0
[pid=9712] vsize: 921640
Current children cumulated CPU time (s) 119.7
Current children cumulated vsize (Kb) 921640
Sending SIGKILL to -9712
One traced child (pid=9712) ended because it received signal 9 (SIGKILL)
All traced children have exited ! Game is over.

Child ended because it received signal 9 (SIGKILL)
Real time (s): 121.746
CPU time (s): 120.434
CPU user time (s): 114.373
CPU system time (s): 6.06108
CPU usage (%): 98.9222
Max. virtual memory (cumulated for all children) (Kb): 921640

Verifier Data

ERROR: no interpretation found !