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-sctap3.opb
MD5SUM9acbf5c4d628ba2ce39f0b2ebe624ef2
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 138526720
Optimality of the best value was proved NO
Number of terms in the objective function 37200
Biggest coefficient in the objective function 41943040
Number of bits for the biggest coefficient in the objective function 26
Sum of the numbers in the objective function 30639361500
Number of bits of the sum of numbers in the objective function 35
Biggest number in a constraint 41943040
Number of bits of the biggest number in a constraint 26
Biggest sum of numbers in a constraint 30639361500
Number of bits of the biggest sum of numbers35
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1204.75
Number of variables49600
Total number of constraints1480
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 constraints1480
Minimum length of a constraint60
Maximum length of a constraint620

Trace number 10307

Launcher Data

LAUNCH ON wulflinc29 THE 2005-09-23 17:48:55 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9056 boxname=wulflinc29 idbench=852 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  9acbf5c4d628ba2ce39f0b2ebe624ef2  /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-13-7-sctap3.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-13-7-sctap3.opb
IDLAUNCH: 9056
/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:        915944 kB
Buffers:         12320 kB
Cached:          88932 kB
SwapCached:          0 kB
Active:          56244 kB
Inactive:        47912 kB
HighTotal:      131008 kB
HighFree:        42476 kB
LowTotal:       903652 kB
LowFree:        873468 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8948 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 17:50:45 (client local time) WITH STATUS 0 IN 108.401 SECONDS
stats: 9056 7 108.401 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/10171/stat): 10171 (pb2sat) R 10170 10171 4005 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22073407 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10171/statm): 373 2 364 364 0 9 0
[pid=10171] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-13-7-sctap3.opb

[startup+10.0017 s]
Raw data (loadavg): 0.84 0.92 0.90 2/55 10171
Raw data (/proc/10171/stat): 10171 (pb2sat) R 10170 10171 4005 0 -1 0 2619 0 0 0 991 6 0 0 25 0 1 0 22073407 9637888 1931 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10171/statm): 2353 1931 364 364 0 1989 0
[pid=10171] vsize: 9412
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 9412

[startup+20.0025 s]
Raw data (loadavg): 0.87 0.92 0.90 2/55 10171
Raw data (/proc/10171/stat): 10171 (pb2sat) R 10170 10171 4005 0 -1 0 4211 0 0 0 1988 10 0 0 25 0 1 0 22073407 15224832 2776 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10171/statm): 3717 2776 364 364 0 3353 0
[pid=10171] vsize: 14868
Current children cumulated CPU time (s) 19.98
Current children cumulated vsize (Kb) 14868

[startup+30.0033 s]
Raw data (loadavg): 0.89 0.92 0.90 2/55 10171
Raw data (/proc/10171/stat): 10171 (pb2sat) R 10170 10171 4005 0 -1 0 20540 0 0 0 2946 50 0 0 25 0 1 0 22073407 63504384 12303 4294967295 134512640 135987407 3221224560 3221210092 135499903 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10171/statm): 15504 12303 364 364 0 15140 0
[pid=10171] vsize: 62016
Current children cumulated CPU time (s) 29.96
Current children cumulated vsize (Kb) 62016

[startup+40.0041 s]
Raw data (loadavg): 0.90 0.93 0.90 2/55 10171
Raw data (/proc/10171/stat): 10171 (pb2sat) R 10170 10171 4005 0 -1 0 51681 0 0 0 3878 116 0 0 25 0 1 0 22073407 162594816 29123 4294967295 134512640 135987407 3221224560 3221207760 134866215 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10171/statm): 39696 29123 364 364 0 39332 0
[pid=10171] vsize: 158784
Current children cumulated CPU time (s) 39.94
Current children cumulated vsize (Kb) 158784

[startup+50.0049 s]
Raw data (loadavg): 0.92 0.93 0.90 2/55 10171
Raw data (/proc/10171/stat): 10171 (pb2sat) R 10170 10171 4005 0 -1 0 92863 0 0 0 4786 207 0 0 25 0 1 0 22073407 279871488 48064 4294967295 134512640 135987407 3221224560 3221215552 134878060 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10171/statm): 68328 48064 364 364 0 67964 0
[pid=10171] vsize: 273312
Current children cumulated CPU time (s) 49.93
Current children cumulated vsize (Kb) 273312

[startup+60.0056 s]
Raw data (loadavg): 0.93 0.93 0.90 2/55 10171
Raw data (/proc/10171/stat): 10171 (pb2sat) R 10170 10171 4005 0 -1 0 108836 0 0 0 5747 246 0 0 25 0 1 0 22073407 318021632 63764 4294967295 134512640 135987407 3221224560 3221188480 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10171/statm): 77642 63764 364 364 0 77278 0
[pid=10171] vsize: 310568
Current children cumulated CPU time (s) 59.93
Current children cumulated vsize (Kb) 310568

[startup+70.0054 s]
Raw data (loadavg): 0.94 0.93 0.91 2/55 10171
Raw data (/proc/10171/stat): 10171 (pb2sat) R 10170 10171 4005 0 -1 0 151921 0 0 0 6649 339 0 0 25 0 1 0 22073407 447856640 87200 4294967295 134512640 135987407 3221224560 3221212144 134856385 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10171/statm): 109340 87200 364 364 0 108976 0
[pid=10171] vsize: 437360
Current children cumulated CPU time (s) 69.88
Current children cumulated vsize (Kb) 437360

[startup+80.0062 s]
Raw data (loadavg): 0.95 0.93 0.91 2/55 10171
Raw data (/proc/10171/stat): 10171 (pb2sat) R 10170 10171 4005 0 -1 0 189890 0 0 0 7561 426 0 0 25 0 1 0 22073407 585859072 100362 4294967295 134512640 135987407 3221224560 3221191936 134877726 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10171/statm): 143032 100362 364 364 0 142668 0
[pid=10171] vsize: 572128
Current children cumulated CPU time (s) 79.87
Current children cumulated vsize (Kb) 572128

[startup+90.007 s]
Raw data (loadavg): 0.96 0.94 0.91 2/55 10171
Raw data (/proc/10171/stat): 10171 (pb2sat) R 10170 10171 4005 0 -1 0 206024 0 0 0 8521 466 0 0 25 0 1 0 22073407 590454784 116219 4294967295 134512640 135987407 3221224560 3221209028 134892396 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10171/statm): 144154 116219 364 364 0 143790 0
[pid=10171] vsize: 576616
Current children cumulated CPU time (s) 89.87
Current children cumulated vsize (Kb) 576616

[startup+100.007 s]
Raw data (loadavg): 0.96 0.94 0.91 2/55 10171
Raw data (/proc/10171/stat): 10171 (pb2sat) R 10170 10171 4005 0 -1 0 223342 0 0 0 9480 507 0 0 25 0 1 0 22073407 595320832 133239 4294967295 134512640 135987407 3221224560 3221215912 135486713 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10171/statm): 145342 133239 364 364 0 144978 0
[pid=10171] vsize: 581368
Current children cumulated CPU time (s) 99.87
Current children cumulated vsize (Kb) 581368



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+108.192 s]
Raw data (loadavg): 0.97 0.94 0.91 1/55 10171
Raw data (/proc/10171/stat): 10171 (pb2sat) T 10170 10171 4005 0 -1 0 238339 0 0 0 10262 542 0 0 25 0 1 0 22073407 943845376 147914 4294967295 134512640 135987407 3221224560 3221215228 135635874 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/10171/statm): 230431 147914 364 364 0 230067 0
[pid=10171] vsize: 921724
Current children cumulated CPU time (s) 108.04
Current children cumulated vsize (Kb) 921724

Sending SIGTERM to -10171
Sleeping 2 seconds

[startup+110.008 s]
Raw data (loadavg): 0.97 0.94 0.91 1/56 10172
Raw data (/proc/10171/stat): 10171 (pb2sat) S 10170 10171 4005 0 -1 0 238340 0 0 0 10267 542 0 0 25 0 1 0 22073407 943845376 147915 4294967295 134512640 135987407 3221224560 3221213688 135549753 0 16384 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10171/statm): 230431 147915 364 364 0 230067 0
[pid=10171] vsize: 921724
Current children cumulated CPU time (s) 108.09
Current children cumulated vsize (Kb) 921724
Sending SIGKILL to -10171
One traced child (pid=10171) 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): 110.498
CPU time (s): 108.401
CPU user time (s): 102.674
CPU system time (s): 5.72613
CPU usage (%): 98.1019
Max. virtual memory (cumulated for all children) (Kb): 921724

Verifier Data

ERROR: no interpretation found !