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-v2-13-7/MIPLIB/miplib2003/normalized-mps-v2-13-7-net12.opb
MD5SUM40130e6166f7a0beafce467effb99573
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 214
Optimality of the best value was proved NO
Number of terms in the objective function 39
Biggest coefficient in the objective function 20
Number of bits for the biggest coefficient in the objective function 5
Sum of the numbers in the objective function 337
Number of bits of the sum of numbers in the objective function 9
Biggest number in a constraint 1536
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 17129
Number of bits of the biggest sum of numbers15
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark146.223
Number of variables109859
Total number of constraints28136
Number of constraints which are clauses12
Number of constraints which are cardinality constraints (but not clauses)1994
Number of constraints which are nor clauses,nor cardinality constraints26130
Minimum length of a constraint1
Maximum length of a constraint223

Trace number 41516 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-09 14:44:52 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=29587 boxname=wulflinc4 idbench=1371 idsolver=21 numberseed=0
MD5SUM SOLVER: 174a32271cb3bba0a277d6d7724e60fb  /oldhome/oroussel/solvers/bsolo_lpr_cuts-v2
MD5SUM BENCH:  40130e6166f7a0beafce467effb99573  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-net12.opb
REAL COMMAND:  bsolo_lpr_cuts-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-net12.opb
IDLAUNCH: 29587
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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:        867516 kB
Buffers:         12476 kB
Cached:         133712 kB
SwapCached:        896 kB
Active:          33328 kB
Inactive:       114940 kB
HighTotal:      131008 kB
HighFree:        11424 kB
LowTotal:       903652 kB
LowFree:        856092 kB
SwapTotal:     2097136 kB
SwapFree:      2095212 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4924 kB
Slab:            13216 kB
Committed_AS:    71796 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-09 14:45:56 (client local time) WITH STATUS 0 IN 63.2454 SECONDS
stats: 29587 7 63.2454 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 109859 variables and 27085 constraints.
#### 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
Enforcing Stack size limit: 67108864 bytes
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.85 0.94 0.90 1/54 17474
Raw data (stat): 17474 (runsolver) R 17473 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 911085612 884736 94 4294967295 134512640 135332820 3221224448 3221219628 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0011 s]
Raw data (loadavg): 0.88 0.94 0.90 2/54 17474
Raw data (stat): 17474 (bsolo_lpr_cuts-) R 17473 21152 21151 0 -1 0 88247 0 0 0 806 191 0 0 25 0 1 0 911085612 374210560 88050 4294967295 134512640 134716908 3221224560 3221222844 1077399562 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 91360 88050 1111 63 0 91297 0
vsize: 365440
[startup+20.0022 s]
Raw data (loadavg): 0.89 0.94 0.90 2/54 17474
Raw data (stat): 17474 (bsolo_lpr_cuts-) R 17473 21152 21151 0 -1 0 158983 0 0 0 1668 329 0 0 25 0 1 0 911085612 662376448 158352 4294967295 134512640 134716908 3221224560 3221222864 134567410 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 161713 158357 1111 63 0 161650 0
vsize: 646852
[startup+30.0017 s]
Raw data (loadavg): 0.91 0.94 0.90 2/54 17474
Raw data (stat): 17474 (bsolo_lpr_cuts-) R 17473 21152 21151 0 -1 0 172171 0 0 0 2643 354 0 0 25 0 1 0 911085612 716296192 171540 4294967295 134512640 134716908 3221224560 3221221004 1077359279 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 174877 171540 1111 63 0 174814 0
vsize: 699508
[startup+40.0025 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 17474
Raw data (stat): 17474 (bsolo_lpr_cuts-) R 17473 21152 21151 0 -1 0 173087 0 0 0 3641 356 0 0 25 0 1 0 911085612 720080896 172456 4294967295 134512640 134716908 3221224560 3221222836 1077414376 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 175801 172456 1111 63 0 175738 0
vsize: 703204
[startup+50.0024 s]
Raw data (loadavg): 0.93 0.95 0.90 2/54 17474
Raw data (stat): 17474 (bsolo_lpr_cuts-) R 17473 21152 21151 0 -1 0 177615 0 0 0 4630 366 0 0 25 0 1 0 911085612 738598912 176984 4294967295 134512640 134716908 3221224560 3221222844 1077399562 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 180322 176984 1111 63 0 180259 0
vsize: 721288
[startup+60.0032 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 17474
Raw data (stat): 17474 (bsolo_lpr_cuts-) R 17473 21152 21151 0 -1 0 178901 0 0 0 5628 369 0 0 25 0 1 0 911085612 743878656 178270 4294967295 134512640 134716908 3221224560 3221222844 1077399562 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 181611 178270 1111 63 0 181548 0
vsize: 726444
[startup+63.6549 s]
Raw data (loadavg): 0.94 0.95 0.91 1/53 17474
Raw data (stat): 17474 (bsolo_lpr_cuts-) R 17473 21152 21151 0 -1 0 178901 0 0 0 5628 369 0 0 25 0 1 0 911085612 743878656 178270 4294967295 134512640 134716908 3221224560 3221222844 1077399562 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 181611 178270 1111 63 0 181548 0
vsize: 0

Child ended because it received signal 6 (SIGABRT)
Real time (s): 63.6542
CPU time (s): 63.2454
CPU user time (s): 57.7092
CPU system time (s): 5.53616
CPU usage (%): 99.3577
Max. virtual memory (Kb): 726444
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####