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/plato.asu.edu/pub/unibo/normalized-mps-v2-20-10-dg012142.opb
MD5SUMbc2dcc682f209df3faf1b0ad321ee43d
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 24640
Biggest coefficient in the objective function 5368709120000
Number of bits for the biggest coefficient in the objective function 43
Sum of the numbers in the objective function 1723417105498688
Number of bits of the sum of numbers in the objective function 51
Biggest number in a constraint 5368709120000
Number of bits of the biggest number in a constraint 43
Biggest sum of numbers in a constraint 1723417105498688
Number of bits of the biggest sum of numbers51
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1293.53
Number of variables43840
Total number of constraints6310
Number of constraints which are clauses40
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints6270
Minimum length of a constraint1
Maximum length of a constraint371

Trace number 27874

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc30 THE 2005-05-24 23:45:34 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=15096 boxname=wulflinc30 idbench=1162 idsolver=3 numberseed=0
MD5SUM SOLVER: 03a6a792daea978e4202f78851741568  /oldhome/oroussel/solvers/bsolo_mis
MD5SUM BENCH:  bc2dcc682f209df3faf1b0ad321ee43d  /oldhome/oroussel/tmp/wulflinc30/normalized-mps-v2-20-10-dg012142.opb
REAL COMMAND:  bsolo_mis /oldhome/oroussel/tmp/wulflinc30/normalized-mps-v2-20-10-dg012142.opb
IDLAUNCH: 15096
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.072
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		: 451.072
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:        828412 kB
Buffers:         19192 kB
Cached:         164276 kB
SwapCached:       1628 kB
Active:          50728 kB
Inactive:       135792 kB
HighTotal:      131008 kB
HighFree:        16912 kB
LowTotal:       903652 kB
LowFree:        811500 kB
SwapTotal:     2097892 kB
SwapFree:      2095420 kB
Dirty:              44 kB
Writeback:           0 kB
Mapped:           5016 kB
Slab:            14024 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-24 23:49:20 (client local time) WITH STATUS 20 IN 225.559 SECONDS
stats: 15096 7 225.559 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Initial problem consists of 43840 variables and 2617 constraints.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 225.49 s
#### 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): 0.93 0.94 0.92 2/54 29259
Raw data (stat): 29259 (runsolver) R 29258 22056 22055 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 834297783 1052672 99 4294967295 134512640 135381576 3221224480 3221219696 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+9.99969 s]
Raw data (loadavg): 0.94 0.95 0.92 2/54 29259
Raw data (stat): 29259 (bsolo_mis) R 29258 22056 22055 0 -1 0 882 0 0 0 996 2 0 0 25 0 1 0 834297783 16392192 860 4294967295 134512640 134714540 3221224592 3221221116 1077196853 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 4002 860 1111 63 0 3939 0
vsize: 16008
[startup+20.0004 s]
Raw data (loadavg): 0.95 0.95 0.92 2/54 29259
Raw data (stat): 29259 (bsolo_mis) R 29258 22056 22055 0 -1 0 1255 0 0 0 1996 2 0 0 25 0 1 0 834297783 18014208 1233 4294967295 134512640 134714540 3221224592 3221222820 1077414338 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 4398 1233 1111 63 0 4335 0
vsize: 17592
[startup+30.0032 s]
Raw data (loadavg): 0.95 0.95 0.92 2/54 29259
Raw data (stat): 29259 (bsolo_mis) R 29258 22056 22055 0 -1 0 1632 0 0 0 2995 4 0 0 25 0 1 0 834297783 19472384 1610 4294967295 134512640 134714540 3221224592 3221222820 1077414388 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 4754 1610 1111 63 0 4691 0
vsize: 19016
[startup+40.003 s]
Raw data (loadavg): 0.96 0.95 0.92 2/54 29259
Raw data (stat): 29259 (bsolo_mis) R 29258 22056 22055 0 -1 0 2017 0 0 0 3995 4 0 0 25 0 1 0 834297783 21098496 1995 4294967295 134512640 134714540 3221224592 3221222820 1077414413 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 5151 1995 1111 63 0 5088 0
vsize: 20604
[startup+50.0039 s]
Raw data (loadavg): 0.97 0.95 0.92 2/54 29259
Raw data (stat): 29259 (bsolo_mis) R 29258 22056 22055 0 -1 0 2417 0 0 0 4994 5 0 0 25 0 1 0 834297783 22769664 2395 4294967295 134512640 134714540 3221224592 3221222820 1077414363 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5559 2395 1111 63 0 5496 0
vsize: 22236
[startup+60.0036 s]
Raw data (loadavg): 0.97 0.95 0.92 2/54 29259
Raw data (stat): 29259 (bsolo_mis) R 29258 22056 22055 0 -1 0 2840 0 0 0 5993 6 0 0 25 0 1 0 834297783 24424448 2818 4294967295 134512640 134714540 3221224592 3221222820 1077414376 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 5963 2818 1111 63 0 5900 0
vsize: 23852
[startup+70.0044 s]
Raw data (loadavg): 0.97 0.95 0.92 2/54 29259
Raw data (stat): 29259 (bsolo_mis) R 29258 22056 22055 0 -1 0 3271 0 0 0 6993 6 0 0 25 0 1 0 834297783 26247168 3249 4294967295 134512640 134714540 3221224592 3221222820 1077414433 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 6408 3249 1111 63 0 6345 0
vsize: 25632
[startup+80.0069 s]
Raw data (loadavg): 0.98 0.95 0.92 2/54 29259
Raw data (stat): 29259 (bsolo_mis) R 29258 22056 22055 0 -1 0 3740 0 0 0 7991 8 0 0 25 0 1 0 834297783 28188672 3718 4294967295 134512640 134714540 3221224592 3221222820 1077414388 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 6882 3718 1111 63 0 6819 0
vsize: 27528
[startup+90.0061 s]
Raw data (loadavg): 0.98 0.95 0.92 2/54 29259
Raw data (stat): 29259 (bsolo_mis) R 29258 22056 22055 0 -1 0 4251 0 0 0 8991 9 0 0 25 0 1 0 834297783 30310400 4229 4294967295 134512640 134714540 3221224592 3221223248 134527932 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 7400 4229 1111 63 0 7337 0
vsize: 29600
[startup+100.006 s]
Raw data (loadavg): 0.98 0.95 0.92 2/54 29259
Raw data (stat): 29259 (bsolo_mis) R 29258 22056 22055 0 -1 0 4802 0 0 0 9990 10 0 0 25 0 1 0 834297783 32624640 4780 4294967295 134512640 134714540 3221224592 3221222820 1077414410 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 7965 4780 1111 63 0 7902 0
vsize: 31860
[startup+110.006 s]
Raw data (loadavg): 0.99 0.95 0.92 2/54 29259
Raw data (stat): 29259 (bsolo_mis) R 29258 22056 22055 0 -1 0 5368 0 0 0 10989 11 0 0 25 0 1 0 834297783 34893824 5346 4294967295 134512640 134714540 3221224592 3221223248 134527946 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 8519 5346 1111 63 0 8456 0
vsize: 34076
[startup+120.006 s]
Raw data (loadavg): 0.99 0.96 0.92 2/54 29259
Raw data (stat): 29259 (bsolo_mis) R 29258 22056 22055 0 -1 0 5963 0 0 0 11987 12 0 0 25 0 1 0 834297783 37326848 5941 4294967295 134512640 134714540 3221224592 3221222820 1077414363 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 9113 5941 1111 63 0 9050 0
vsize: 36452
[startup+130.007 s]
Raw data (loadavg): 0.99 0.96 0.92 2/54 29259
Raw data (stat): 29259 (bsolo_mis) R 29258 22056 22055 0 -1 0 6595 0 0 0 12986 14 0 0 25 0 1 0 834297783 39907328 6573 4294967295 134512640 134714540 3221224592 3221222820 1077414360 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 9743 6573 1111 63 0 9680 0
vsize: 38972
[startup+140.006 s]
Raw data (loadavg): 0.99 0.96 0.92 2/54 29259
Raw data (stat): 29259 (bsolo_mis) R 29258 22056 22055 0 -1 0 7337 0 0 0 13985 15 0 0 25 0 1 0 834297783 42905600 7315 4294967295 134512640 134714540 3221224592 3221223248 134527932 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 10475 7315 1111 63 0 10412 0
vsize: 41900
[startup+150.007 s]
Raw data (loadavg): 0.99 0.96 0.92 2/54 29259
Raw data (stat): 29259 (bsolo_mis) R 29258 22056 22055 0 -1 0 8231 0 0 0 14983 18 0 0 25 0 1 0 834297783 46546944 8209 4294967295 134512640 134714540 3221224592 3221222820 1077414376 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 11364 8209 1111 63 0 11301 0
vsize: 45456
[startup+160.007 s]
Raw data (loadavg): 0.99 0.96 0.92 2/54 29259
Raw data (stat): 29259 (bsolo_mis) R 29258 22056 22055 0 -1 0 9267 0 0 0 15981 19 0 0 25 0 1 0 834297783 50835456 9245 4294967295 134512640 134714540 3221224592 3221223248 134527932 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 12411 9245 1111 63 0 12348 0
vsize: 49644
[startup+170.008 s]
Raw data (loadavg): 0.99 0.96 0.92 2/54 29259
Raw data (stat): 29259 (bsolo_mis) R 29258 22056 22055 0 -1 0 13670 0 0 0 16973 28 0 0 25 0 1 0 834297783 68960256 13648 4294967295 134512640 134714540 3221224592 3221223248 134527932 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 16836 13648 1111 63 0 16773 0
vsize: 67344
[startup+180.008 s]
Raw data (loadavg): 0.99 0.96 0.92 2/54 29259
Raw data (stat): 29259 (bsolo_mis) R 29258 22056 22055 0 -1 0 15226 0 0 0 17971 30 0 0 25 0 1 0 834297783 75276288 15204 4294967295 134512640 134714540 3221224592 3221223248 134527932 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 18378 15204 1111 63 0 18315 0
vsize: 73512
[startup+190.009 s]
Raw data (loadavg): 0.99 0.96 0.92 2/54 29259
Raw data (stat): 29259 (bsolo_mis) R 29258 22056 22055 0 -1 0 16845 0 0 0 18967 34 0 0 25 0 1 0 834297783 81932288 16823 4294967295 134512640 134714540 3221224592 3221222872 1077358896 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 20003 16823 1111 63 0 19940 0
vsize: 80012
[startup+200.009 s]
Raw data (loadavg): 0.99 0.96 0.92 2/54 29259
Raw data (stat): 29259 (bsolo_mis) R 29258 22056 22055 0 -1 0 18120 0 0 0 19962 38 0 0 25 0 1 0 834297783 87068672 18098 4294967295 134512640 134714540 3221224592 3221222868 1077414382 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 21257 18098 1111 63 0 21194 0
vsize: 85028
[startup+210.009 s]
Raw data (loadavg): 0.99 0.96 0.92 2/54 29259
Raw data (stat): 29259 (bsolo_mis) R 29258 22056 22055 0 -1 0 25206 0 0 0 20944 56 0 0 25 0 1 0 834297783 116232192 25184 4294967295 134512640 134714540 3221224592 3221222252 1077253148 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 28377 25184 1111 63 0 28314 0
vsize: 113508
[startup+220.01 s]
Raw data (loadavg): 0.99 0.97 0.92 2/54 29259
Raw data (stat): 29259 (bsolo_mis) R 29258 22056 22055 0 -1 0 31109 0 0 0 21930 71 0 0 25 0 1 0 834297783 140468224 31087 4294967295 134512640 134714540 3221224592 3221221468 1077244281 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 34294 31087 1111 63 0 34231 0
vsize: 137176
[startup+225.555 s]
Raw data (loadavg): 0.99 0.97 0.92 1/53 29259
Raw data (stat): 29259 (bsolo_mis) R 29258 22056 22055 0 -1 0 31109 0 0 0 21930 71 0 0 25 0 1 0 834297783 140468224 31087 4294967295 134512640 134714540 3221224592 3221221468 1077244281 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 34294 31087 1111 63 0 34231 0
vsize: 0

Child status: 20
Real time (s): 225.555
CPU time (s): 225.559
CPU user time (s): 224.661
CPU system time (s): 0.897863
CPU usage (%): 100.002
Max. virtual memory (Kb): 137176
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####