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-rout.opb
MD5SUM46c175563919d1fe493ed3da6f49d52f
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1251872
Optimality of the best value was proved NO
Number of terms in the objective function 21
Biggest coefficient in the objective function 1048576
Number of bits for the biggest coefficient in the objective function 21
Sum of the numbers in the objective function 2097151
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 33812000
Number of bits of the biggest number in a constraint 26
Biggest sum of numbers in a constraint 166074535
Number of bits of the biggest sum of numbers28
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1585.77
Number of variables5151
Total number of constraints606
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)314
Number of constraints which are nor clauses,nor cardinality constraints292
Minimum length of a constraint1
Maximum length of a constraint617

Trace number 18393 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-04-21 15:06:12 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=17991 boxname=wulflinc6 idbench=1384 idsolver=12 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  46c175563919d1fe493ed3da6f49d52f  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-13-7-rout.opb
REAL COMMAND:  minisat+ -cb -gs /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-13-7-rout.opb /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-13-7-rout.opb
IDLAUNCH: 17991
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.042
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		: 451.042
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:        680976 kB
Buffers:         30176 kB
Cached:         302540 kB
SwapCached:        552 kB
Active:          49336 kB
Inactive:       285392 kB
HighTotal:      131008 kB
HighFree:        14420 kB
LowTotal:       903652 kB
LowFree:        666556 kB
SwapTotal:     2097136 kB
SwapFree:      2095720 kB
Dirty:              40 kB
Writeback:           0 kB
Mapped:           5112 kB
Slab:            13196 kB
Committed_AS:    63560 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-21 15:07:08 (client local time) WITH STATUS 0 IN 55.5846 SECONDS
stats: 17991 7 55.5846 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): 0.85 0.97 0.92 1/54 18056
Raw data (stat): 18056 (runsolver) R 18055 29653 29652 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 487805773 1052672 99 4294967295 134512640 135381576 3221224448 3221219692 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+10.0003 s]
Raw data (loadavg): 0.87 0.97 0.92 2/54 18056
Raw data (stat): 18056 (minisat+) R 18055 29653 29652 0 -1 0 45448 0 0 0 899 99 0 0 25 0 1 0 487805773 148672512 34957 4294967295 134512640 134672761 3221224544 3221207216 134522892 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 36297 34958 603 41 0 36256 0
vsize: 145188
[startup+20.0017 s]
Raw data (loadavg): 0.89 0.97 0.92 2/54 18056
Raw data (stat): 18056 (minisat+) R 18055 29653 29652 0 -1 0 91662 0 0 0 1801 197 0 0 25 0 1 0 487805773 294891520 70625 4294967295 134512640 134672761 3221224544 3221196872 1075350517 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 71995 70627 603 41 0 71954 0
vsize: 287980
[startup+30.0026 s]
Raw data (loadavg): 0.91 0.97 0.92 2/54 18056
Raw data (stat): 18056 (minisat+) R 18055 29653 29652 0 -1 0 152213 0 0 0 2665 334 0 0 25 0 1 0 487805773 531845120 120630 4294967295 134512640 134672761 3221224544 3221195488 134523741 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 129845 120630 603 41 0 129804 0
vsize: 519380
[startup+40.0027 s]
Raw data (loadavg): 0.92 0.97 0.92 2/54 18056
Raw data (stat): 18056 (minisat+) R 18055 29653 29652 0 -1 0 183445 0 0 0 3598 401 0 0 25 0 1 0 487805773 585158656 141316 4294967295 134512640 134672761 3221224544 3221212688 134522886 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 142861 141317 603 41 0 142820 0
vsize: 571444
[startup+50.0045 s]
Raw data (loadavg): 0.93 0.97 0.92 2/54 18056
Raw data (stat): 18056 (minisat+) R 18055 29653 29652 0 -1 0 247487 0 0 0 4445 554 0 0 25 0 1 0 487805773 926048256 205358 4294967295 134512640 134672761 3221224544 3221194784 134594574 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 226086 205358 603 41 0 226045 0
vsize: 904344
[startup+55.5953 s]
Raw data (loadavg): 0.94 0.97 0.92 1/53 18056
Raw data (stat): 18056 (minisat+) R 18055 29653 29652 0 -1 0 247487 0 0 0 4445 554 0 0 25 0 1 0 487805773 926048256 205358 4294967295 134512640 134672761 3221224544 3221194784 134594574 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 226086 205358 603 41 0 226045 0
vsize: 0

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 55.595
CPU time (s): 55.5846
CPU user time (s): 49.3955
CPU system time (s): 6.18906
CPU usage (%): 99.9813
Max. virtual memory (Kb): 904344
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####