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).
  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

Namenormalized-opb/mps-v2-20-10/MIPLIB/miplib3/normalized-mps-v2-20-10-cap6000.opb
MD5SUMb4da9562dcd40afcc9afd9f695cf339d
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -258414
Optimality of the best value was proved NO
Number of terms in the objective function 5995
Biggest coefficient in the objective function 91110
Number of bits for the biggest coefficient in the objective function 17
Sum of the numbers in the objective function 12969603
Number of bits of the sum of numbers in the objective function 24
Biggest number in a constraint 800000
Number of bits of the biggest number in a constraint 20
Biggest sum of numbers in a constraint 28761906
Number of bits of the biggest sum of numbers25
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1175.18
Number of variables6000
Total number of constraints8176
Number of constraints which are clauses222
Number of constraints which are cardinality constraints (but not clauses)7919
Number of constraints which are nor clauses,nor cardinality constraints35
Minimum length of a constraint1
Maximum length of a constraint6000

Trace number 21330 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc13 THE 2005-04-21 23:44:44 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=13259 boxname=wulflinc13 idbench=1020 idsolver=12 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  b4da9562dcd40afcc9afd9f695cf339d  /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-cap6000.opb
REAL COMMAND:  minisat+ -cb -gs /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-cap6000.opb /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-cap6000.opb
IDLAUNCH: 13259
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.242
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		: 451.242
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        580904 kB
Buffers:         20936 kB
Cached:         411220 kB
SwapCached:        392 kB
Active:         200932 kB
Inactive:       233292 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        580652 kB
SwapTotal:     2097136 kB
SwapFree:      2095968 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5748 kB
Slab:            13716 kB
Committed_AS:    63584 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-21 23:45:39 (client local time) WITH STATUS 0 IN 54.8487 SECONDS
stats: 13259 7 54.8487 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Raw data (loadavg): 0.84 0.93 0.90 1/54 31202
Raw data (stat): 31202 (runsolver) R 31201 30701 30700 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 490922248 1052672 99 4294967295 134512640 135381576 3221224432 3221219676 135158418 0 0 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.001 s]
Raw data (loadavg): 0.87 0.93 0.90 2/54 31202
Raw data (stat): 31202 (minisat+) R 31201 30701 30700 0 -1 0 44988 0 0 0 898 100 0 0 25 0 1 0 490922248 143585280 34070 4294967295 134512640 134672761 3221224528 3220714480 134592695 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 35055 34070 603 41 0 35014 0
vsize: 140220
[startup+20.0018 s]
Raw data (loadavg): 0.89 0.93 0.90 2/54 31202
Raw data (stat): 31202 (minisat+) R 31201 30701 30700 0 -1 0 88756 0 0 0 1802 197 0 0 25 0 1 0 490922248 281964544 67292 4294967295 134512640 134672761 3221224528 3220947616 134522892 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 68839 67294 603 41 0 68798 0
vsize: 275356
[startup+30.0015 s]
Raw data (loadavg): 0.90 0.93 0.90 2/54 31202
Raw data (stat): 31202 (minisat+) R 31201 30701 30700 0 -1 0 149380 0 0 0 2665 334 0 0 25 0 1 0 490922248 518647808 117370 4294967295 134512640 134672761 3221224528 3221017296 134523749 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 126623 117370 603 41 0 126582 0
vsize: 506492
[startup+40.0018 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 31202
Raw data (stat): 31202 (minisat+) R 31201 30701 30700 0 -1 0 172997 0 0 0 3618 381 0 0 25 0 1 0 490922248 548306944 130441 4294967295 134512640 134672761 3221224528 3220771096 1075350517 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 133864 130441 603 41 0 133823 0
vsize: 535456
[startup+50.0018 s]
Raw data (loadavg): 0.93 0.94 0.90 2/54 31202
Raw data (stat): 31202 (minisat+) R 31201 30701 30700 0 -1 0 201182 0 0 0 4556 437 0 0 25 0 1 0 490922248 735883264 158626 4294967295 134512640 134672761 3221224528 3220809568 134522881 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 179659 158628 603 41 0 179618 0
vsize: 718636
[startup+54.959 s]
Raw data (loadavg): 0.93 0.94 0.90 1/53 31202
Raw data (stat): 31202 (minisat+) R 31201 30701 30700 0 -1 0 201182 0 0 0 4556 437 0 0 25 0 1 0 490922248 735883264 158626 4294967295 134512640 134672761 3221224528 3220809568 134522881 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 179659 158628 603 41 0 179618 0
vsize: 0

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 54.9588
CPU time (s): 54.8487
CPU user time (s): 49.9064
CPU system time (s): 4.94225
CPU usage (%): 99.7996
Max. virtual memory (Kb): 718636
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####