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-sp98ic.opb
MD5SUMb6b40b25db69f63dc02649b5c9a3693a
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 10894
Biggest coefficient in the objective function 1079902210
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 3040671454286
Number of bits of the sum of numbers in the objective function 42
Biggest number in a constraint 1079902210
Number of bits of the biggest number in a constraint 31
Biggest sum of numbers in a constraint 3040671454286
Number of bits of the biggest sum of numbers42
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark8.81066
Number of variables10894
Total number of constraints11719
Number of constraints which are clauses20
Number of constraints which are cardinality constraints (but not clauses)11518
Number of constraints which are nor clauses,nor cardinality constraints181
Minimum length of a constraint1
Maximum length of a constraint5038

Trace number 43041 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-06-16 21:42:27 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=26260 boxname=wulflinc5 idbench=1560 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  b6b40b25db69f63dc02649b5c9a3693a  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-sp98ic.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-sp98ic.opb
IDLAUNCH: 26260
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.007
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		: 451.007
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:        683456 kB
Buffers:         24008 kB
Cached:         303572 kB
SwapCached:        656 kB
Active:          30964 kB
Inactive:       298748 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        683204 kB
SwapTotal:     2097136 kB
SwapFree:      2095540 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5156 kB
Slab:            15688 kB
Committed_AS:    63716 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 21:44:31 (client local time) WITH STATUS 1 IN 123.69 SECONDS
stats: 26260 7 123.69 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 73881661449
c big objective detected
c trying from 0 to 511

	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): 0.84 0.93 0.90 1/54 20810
Raw data (stat): 20810 (runsolver) R 20809 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 974089197 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+10.001 s]
Raw data (loadavg): 0.86 0.94 0.90 2/54 20810
Raw data (stat): 20810 (pb2sat-v2) R 20809 7266 7265 0 -1 0 13460 0 0 0 970 29 0 0 25 0 1 0 974089197 42971136 7908 4294967295 134512640 135730672 3221224576 3221221344 135284212 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 10491 7908 301 301 0 10190 0
vsize: 41964
[startup+20.0013 s]
Raw data (loadavg): 0.88 0.94 0.90 2/54 20810
Raw data (stat): 20810 (pb2sat-v2) R 20809 7266 7265 0 -1 0 35137 0 0 0 1924 75 0 0 25 0 1 0 974089197 127299584 23828 4294967295 134512640 135730672 3221224576 3220553264 134775362 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 31079 23828 301 301 0 30778 0
vsize: 124316
[startup+30.0011 s]
Raw data (loadavg): 0.90 0.94 0.90 2/54 20810
Raw data (stat): 20810 (pb2sat-v2) R 20809 7266 7265 0 -1 0 50353 0 0 0 2888 111 0 0 25 0 1 0 974089197 153088000 28358 4294967295 134512640 135730672 3221224576 3220227832 135284251 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 37375 28358 301 301 0 37074 0
vsize: 149500
[startup+40.0023 s]
Raw data (loadavg): 0.91 0.94 0.90 2/54 20810
Raw data (stat): 20810 (pb2sat-v2) R 20809 7266 7265 0 -1 0 74125 0 0 0 3835 164 0 0 25 0 1 0 974089197 215367680 42755 4294967295 134512640 135730672 3221224576 3220077632 134611014 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 52580 42755 301 301 0 52279 0
vsize: 210320
[startup+50.0025 s]
Raw data (loadavg): 0.93 0.94 0.90 2/54 20810
Raw data (stat): 20810 (pb2sat-v2) R 20809 7266 7265 0 -1 0 95436 0 0 0 4789 210 0 0 25 0 1 0 974089197 299253760 51599 4294967295 134512640 135730672 3221224576 3221221584 134850778 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 73060 51599 301 301 0 72759 0
vsize: 292240
[startup+60.0033 s]
Raw data (loadavg): 0.94 0.94 0.90 2/54 20810
Raw data (stat): 20810 (pb2sat-v2) R 20809 7266 7265 0 -1 0 108183 0 0 0 5759 241 0 0 25 0 1 0 974089197 308850688 64143 4294967295 134512640 135730672 3221224576 3220328984 135284254 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 75403 64143 301 301 0 75102 0
vsize: 301612
[startup+70.0036 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 20810
Raw data (stat): 20810 (pb2sat-v2) R 20809 7266 7265 0 -1 0 144363 0 0 0 6692 307 0 0 25 0 1 0 974089197 425975808 81763 4294967295 134512640 135730672 3221224576 3221223248 134742376 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 103998 81763 301 301 0 103697 0
vsize: 415992
[startup+80.0038 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 20810
Raw data (stat): 20810 (pb2sat-v2) R 20809 7266 7265 0 -1 0 152080 0 0 0 7674 325 0 0 25 0 1 0 974089197 432734208 87227 4294967295 134512640 135730672 3221224576 3220181776 134548313 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 105648 87227 301 301 0 105347 0
vsize: 422592
[startup+90.0046 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 20810
Raw data (stat): 20810 (pb2sat-v2) R 20809 7266 7265 0 -1 0 192766 0 0 0 8589 411 0 0 25 0 1 0 974089197 555835392 103104 4294967295 134512640 135730672 3221224576 3218430932 135281187 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 135702 103104 301 301 0 135401 0
vsize: 542808
[startup+100.005 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 20810
Raw data (stat): 20810 (pb2sat-v2) R 20809 7266 7265 0 -1 0 209996 0 0 0 9547 453 0 0 25 0 1 0 974089197 617234432 120108 4294967295 134512640 135730672 3221224576 3220030792 135284852 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 150692 120108 301 301 0 150391 0
vsize: 602768
[startup+110.006 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 20810
Raw data (stat): 20810 (pb2sat-v2) R 20809 7266 7265 0 -1 0 229713 0 0 0 10502 498 0 0 25 0 1 0 974089197 649404416 139566 4294967295 134512640 135730672 3221224576 3218044760 135109377 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 158546 139566 301 301 0 158245 0
vsize: 634184
[startup+120.007 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 20810
Raw data (stat): 20810 (pb2sat-v2) R 20809 7266 7265 0 -1 0 242045 0 0 0 11474 526 0 0 25 0 1 0 974089197 670326784 151694 4294967295 134512640 135730672 3221224576 3221222828 135281175 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 163654 151694 301 301 0 163353 0
vsize: 654616
[startup+123.687 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 20810
Raw data (stat): 20810 (pb2sat-v2) R 20809 7266 7265 0 -1 0 242045 0 0 0 11474 526 0 0 25 0 1 0 974089197 670326784 151694 4294967295 134512640 135730672 3221224576 3221222828 135281175 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 163654 151694 301 301 0 163353 0
vsize: 0

Child status: 1
Real time (s): 123.687
CPU time (s): 123.69
CPU user time (s): 118.116
CPU system time (s): 5.57415
CPU usage (%): 100.003
Max. virtual memory (Kb): 654616
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####