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/miplib3/normalized-mps-v2-13-7-rout.opb
MD5SUM43b060c182b659f22c02b8a980d1ee8f
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1221280
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 benchmark1569.48
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 17867 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc25 THE 2005-04-21 12:45:29 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=18862 boxname=wulflinc25 idbench=1451 idsolver=12 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  43b060c182b659f22c02b8a980d1ee8f  /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-13-7-rout.opb
REAL COMMAND:  minisat+ -cb -gs /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-13-7-rout.opb /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-13-7-rout.opb
IDLAUNCH: 18862
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.220
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		: 451.220
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:        797968 kB
Buffers:         22396 kB
Cached:         194068 kB
SwapCached:        728 kB
Active:          68308 kB
Inactive:       150104 kB
HighTotal:      131008 kB
HighFree:        50988 kB
LowTotal:       903652 kB
LowFree:        746980 kB
SwapTotal:     2097892 kB
SwapFree:      2096220 kB
Dirty:              40 kB
Writeback:           0 kB
Mapped:           4992 kB
Slab:            12680 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-04-21 12:46:26 (client local time) WITH STATUS 0 IN 56.3014 SECONDS
stats: 18862 7 56.3014 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): 0.74 0.92 0.89 2/54 4645
Raw data (stat): 4645 (runsolver) R 4644 28099 28098 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 545193912 1052672 99 4294967295 134512640 135381576 3221224432 3221219676 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10 s]
Raw data (loadavg): 0.78 0.93 0.90 2/54 4645
Raw data (stat): 4645 (minisat+) R 4644 28099 28098 0 -1 0 44675 0 0 0 893 106 0 0 25 0 1 0 545193912 146223104 34184 4294967295 134512640 134672761 3221224544 3221195728 134522942 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 35699 34184 603 41 0 35658 0
vsize: 142796
[startup+20.0011 s]
Raw data (loadavg): 0.81 0.93 0.90 2/54 4645
Raw data (stat): 4645 (minisat+) R 4644 28099 28098 0 -1 0 90334 0 0 0 1793 206 0 0 25 0 1 0 545193912 290820096 69297 4294967295 134512640 134672761 3221224544 3221193280 134594077 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 71001 69297 603 41 0 70960 0
vsize: 284004
[startup+30.0017 s]
Raw data (loadavg): 0.84 0.93 0.90 2/54 4645
Raw data (stat): 4645 (minisat+) R 4644 28099 28098 0 -1 0 152280 0 0 0 2657 342 0 0 25 0 1 0 545193912 532099072 120697 4294967295 134512640 134672761 3221224544 3221195488 134523757 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 129907 120697 603 41 0 129866 0
vsize: 519628
[startup+40.0008 s]
Raw data (loadavg): 0.87 0.93 0.90 2/54 4645
Raw data (stat): 4645 (minisat+) R 4644 28099 28098 0 -1 0 181027 0 0 0 3599 400 0 0 25 0 1 0 545193912 577708032 138898 4294967295 134512640 134672761 3221224544 3221202440 134592988 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 141042 138898 603 41 0 141001 0
vsize: 564168
[startup+50.0019 s]
Raw data (loadavg): 0.89 0.93 0.90 2/54 4645
Raw data (stat): 4645 (minisat+) R 4644 28099 28098 0 -1 0 247553 0 0 0 4443 556 0 0 25 0 1 0 545193912 926302208 205335 4294967295 134512640 134672761 3221224544 3221194784 134594571 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 226148 205335 603 41 0 226107 0
vsize: 904592
[startup+56.3375 s]
Raw data (loadavg): 0.89 0.93 0.90 1/53 4645
Raw data (stat): 4645 (minisat+) R 4644 28099 28098 0 -1 0 247553 0 0 0 4443 556 0 0 25 0 1 0 545193912 926302208 205335 4294967295 134512640 134672761 3221224544 3221194784 134594571 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 226148 205335 603 41 0 226107 0
vsize: 0

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 56.3372
CPU time (s): 56.3014
CPU user time (s): 50.0724
CPU system time (s): 6.22905
CPU usage (%): 99.9366
Max. virtual memory (Kb): 904592
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####