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/plato.asu.edu/pub/unibo/normalized-mps-v2-13-7-core4872-1529.opb
MD5SUM7eea141e02c7a2753145fd63f1e9087d
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2147483647
Optimality of the best value was proved NO
Number of terms in the objective function 24865
Biggest coefficient in the objective function 52428800000000000
Number of bits for the biggest coefficient in the objective function 56
Sum of the numbers in the objective function 226690477012582900
Number of bits of the sum of numbers in the objective function 58
Biggest number in a constraint 1280000000000000000000
Number of bits of the biggest number in a constraint 71
Biggest sum of numbers in a constraint 1280226690477012549632
Number of bits of the biggest sum of numbers71
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark41.1118
Number of variables24865
Total number of constraints29520
Number of constraints which are clauses4872
Number of constraints which are cardinality constraints (but not clauses)24647
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint1
Maximum length of a constraint24865

Trace number 35768 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-05-28 14:04:11 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25072 boxname=wulflinc1 idbench=1544 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  7eea141e02c7a2753145fd63f1e9087d  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-core4872-1529.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-core4872-1529.opb
IDLAUNCH: 25072
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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		: 451.053
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:        700028 kB
Buffers:         36428 kB
Cached:         273516 kB
SwapCached:        680 kB
Active:          26592 kB
Inactive:       285580 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        699776 kB
SwapTotal:     2097136 kB
SwapFree:      2095368 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5812 kB
Slab:            16520 kB
Committed_AS:    92716 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 14:06:08 (client local time) WITH STATUS 1 IN 116.68 SECONDS
stats: 25072 7 116.68 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	St9bad_alloc
#### 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): 0.91 0.94 0.90 2/55 22454
Raw data (stat): 22454 (runsolver) R 22453 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 750300670 884736 94 4294967295 134512640 135332820 3221224464 3221219644 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+9.99958 s]
Raw data (loadavg): 0.93 0.94 0.91 2/55 22454
Raw data (stat): 22454 (pb2sat) R 22453 8378 8377 0 -1 0 2047 0 0 0 995 4 0 0 25 0 1 0 750300670 7684096 1372 4294967295 134512640 135726644 3221224576 3221221664 134556171 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 1876 1372 300 300 0 1576 0
vsize: 7504
[startup+20.0008 s]
Raw data (loadavg): 0.94 0.94 0.91 2/55 22454
Raw data (stat): 22454 (pb2sat) R 22453 8378 8377 0 -1 0 22728 0 0 0 1949 49 0 0 25 0 1 0 750300670 74973184 14853 4294967295 134512640 135726644 3221224576 3211264928 134554691 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 18304 14853 300 300 0 18004 0
vsize: 73216
[startup+30.0013 s]
Raw data (loadavg): 0.95 0.94 0.91 2/55 22454
Raw data (stat): 22454 (pb2sat) R 22453 8378 8377 0 -1 0 54902 0 0 0 2888 111 0 0 25 0 1 0 750300670 181927936 32712 4294967295 134512640 135726644 3221224576 3211260400 134780354 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 44416 32712 300 300 0 44116 0
vsize: 177664
[startup+40.002 s]
Raw data (loadavg): 0.95 0.95 0.91 2/55 22454
Raw data (stat): 22454 (pb2sat) R 22453 8378 8377 0 -1 0 83951 0 0 0 3832 166 0 0 25 0 1 0 750300670 256475136 51831 4294967295 134512640 135726644 3221224576 3211260456 135280619 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 62616 51831 300 300 0 62316 0
vsize: 250464
[startup+50.0028 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 22454
Raw data (stat): 22454 (pb2sat) R 22453 8378 8377 0 -1 0 111862 0 0 0 4774 225 0 0 25 0 1 0 750300670 354959360 67224 4294967295 134512640 135726644 3221224576 3211264492 134604417 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 86660 67224 300 300 0 86360 0
vsize: 346640
[startup+60.0026 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 22454
Raw data (stat): 22454 (pb2sat) R 22453 8378 8377 0 -1 0 152106 0 0 0 5703 296 0 0 25 0 1 0 750300670 558395392 106437 4294967295 134512640 135726644 3221224576 3211268068 135287520 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 136327 106437 300 300 0 136027 0
vsize: 545308
[startup+70.0034 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 22454
Raw data (stat): 22454 (pb2sat) R 22453 8378 8377 0 -1 0 175941 0 0 0 6656 344 0 0 25 0 1 0 750300670 700588032 111450 4294967295 134512640 135726644 3221224576 3211271392 134784885 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 171042 111450 300 300 0 170742 0
vsize: 684168
[startup+80.0046 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 22454
Raw data (stat): 22454 (pb2sat) R 22453 8378 8377 0 -1 0 204328 0 0 0 7596 404 0 0 25 0 1 0 750300670 635637760 115060 4294967295 134512640 135726644 3221224576 3211265292 134604458 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 155185 115060 300 300 0 154885 0
vsize: 620740
[startup+90.0049 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 22454
Raw data (stat): 22454 (pb2sat) R 22453 8378 8377 0 -1 0 225527 0 0 0 8555 445 0 0 25 0 1 0 750300670 667004928 135999 4294967295 134512640 135726644 3221224576 3211272092 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 162843 135999 300 300 0 162543 0
vsize: 651372
[startup+100.005 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 22454
Raw data (stat): 22454 (pb2sat) R 22453 8378 8377 0 -1 0 246589 0 0 0 9511 489 0 0 25 0 1 0 750300670 698454016 156806 4294967295 134512640 135726644 3221224576 3211268092 134604439 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 170521 156806 300 300 0 170221 0
vsize: 682084
[startup+110.005 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 22454
Raw data (stat): 22454 (pb2sat) R 22453 8378 8377 0 -1 0 256677 0 0 0 10492 508 0 0 25 0 1 0 750300670 716288000 166673 4294967295 134512640 135726644 3221224576 3221223008 135101181 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 174875 166673 300 300 0 174575 0
vsize: 699500
[startup+116.677 s]
Raw data (loadavg): 0.98 0.95 0.91 1/54 22454
Raw data (stat): 22454 (pb2sat) R 22453 8378 8377 0 -1 0 256677 0 0 0 10492 508 0 0 25 0 1 0 750300670 716288000 166673 4294967295 134512640 135726644 3221224576 3221223008 135101181 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 174875 166673 300 300 0 174575 0
vsize: 0

Child status: 1
Real time (s): 116.677
CPU time (s): 116.68
CPU user time (s): 111.252
CPU system time (s): 5.42817
CPU usage (%): 100.003
Max. virtual memory (Kb): 699500
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####