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/fctp/normalized-mps-v2-13-7-ran10x10c.opb
MD5SUM31a8734340f0544712ef974997c104b2
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2677632
Optimality of the best value was proved NO
Number of terms in the objective function 2100
Biggest coefficient in the objective function 4718592
Number of bits for the biggest coefficient in the objective function 23
Sum of the numbers in the objective function 515723936
Number of bits of the sum of numbers in the objective function 29
Biggest number in a constraint 4718592
Number of bits of the biggest number in a constraint 23
Biggest sum of numbers in a constraint 515723936
Number of bits of the biggest sum of numbers29
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1175.05
Number of variables2100
Total number of constraints120
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints120
Minimum length of a constraint21
Maximum length of a constraint200

Trace number 42959 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 19:32:31 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=26179 boxname=wulflinc4 idbench=1479 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  31a8734340f0544712ef974997c104b2  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-ran10x10c.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-ran10x10c.opb
IDLAUNCH: 26179
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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:        813176 kB
Buffers:         14796 kB
Cached:         184968 kB
SwapCached:        904 kB
Active:          27148 kB
Inactive:       174700 kB
HighTotal:      131008 kB
HighFree:        27468 kB
LowTotal:       903652 kB
LowFree:        785708 kB
SwapTotal:     2097136 kB
SwapFree:      2095236 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            14068 kB
Committed_AS:    71896 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 19:34:37 (client local time) WITH STATUS 1 IN 125.726 SECONDS
stats: 26179 7 125.726 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: 12464003
c big objective detected
c trying from 0 to 511
c CONFLICT during preprocess 
c trying from 512 to 1023

	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 0.95 0.90 2/54 31892
Raw data (stat): 31892 (runsolver) R 31891 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 973299304 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0003 s]
Raw data (loadavg): 0.93 0.95 0.90 2/54 31892
Raw data (stat): 31892 (pb2sat-v2) R 31891 21152 21151 0 -1 0 26466 0 0 0 937 61 0 0 25 0 1 0 973299304 85372928 15355 4294967295 134512640 135730672 3221224576 3220461224 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 20843 15355 301 301 0 20542 0
vsize: 83372
[startup+20.0008 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 31892
Raw data (stat): 31892 (pb2sat-v2) R 31891 21152 21151 0 -1 0 53192 0 0 0 1880 119 0 0 25 0 1 0 973299304 170356736 31123 4294967295 134512640 135730672 3221224576 3220996416 134551592 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 41591 31123 301 301 0 41290 0
vsize: 166364
[startup+30.0007 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 31892
Raw data (stat): 31892 (pb2sat-v2) R 31891 21152 21151 0 -1 0 80623 0 0 0 2824 175 0 0 25 0 1 0 973299304 242708480 48637 4294967295 134512640 135730672 3221224576 3220599032 135285123 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 59255 48637 301 301 0 58954 0
vsize: 237020
[startup+40.0008 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 31892
Raw data (stat): 31892 (pb2sat-v2) R 31891 21152 21151 0 -1 0 106210 0 0 0 3768 230 0 0 25 0 1 0 973299304 338759680 61729 4294967295 134512640 135730672 3221224576 3221083136 134777063 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 82705 61729 301 301 0 82404 0
vsize: 330820
[startup+50.0014 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 31892
Raw data (stat): 31892 (pb2sat-v2) R 31891 21152 21151 0 -1 0 126546 0 0 0 4726 273 0 0 25 0 1 0 973299304 515702784 81808 4294967295 134512640 135730672 3221224576 3220337040 134775338 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 125904 81810 301 301 0 125603 0
vsize: 503616
[startup+60.002 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 31892
Raw data (stat): 31892 (pb2sat-v2) R 31891 21152 21151 0 -1 0 160229 0 0 0 5662 337 0 0 25 0 1 0 973299304 493355008 93828 4294967295 134512640 135730672 3221224576 3221222800 134787309 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 120448 93828 301 301 0 120147 0
vsize: 481792
[startup+70.0035 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 31892
Raw data (stat): 31892 (pb2sat-v2) R 31891 21152 21151 0 -1 0 170875 0 0 0 6635 364 0 0 25 0 1 0 973299304 537014272 104474 4294967295 134512640 135730672 3221224576 3221222336 134607973 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 131107 104474 301 301 0 130806 0
vsize: 524428
[startup+80.004 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 31892
Raw data (stat): 31892 (pb2sat-v2) R 31891 21152 21151 0 -1 0 181539 0 0 0 7614 386 0 0 25 0 1 0 973299304 738344960 114934 4294967295 134512640 135730672 3221224576 3220367232 134788521 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 180260 114938 301 301 0 179959 0
vsize: 721040
[startup+90.0039 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 31892
Raw data (stat): 31892 (pb2sat-v2) R 31891 21152 21151 0 -1 0 215411 0 0 0 8538 462 0 0 25 0 1 0 973299304 637677568 124027 4294967295 134512640 135730672 3221224576 3220633352 135284284 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 155683 124027 301 301 0 155382 0
vsize: 622732
[startup+100.004 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 31892
Raw data (stat): 31892 (pb2sat-v2) R 31891 21152 21151 0 -1 0 224697 0 0 0 9517 483 0 0 25 0 1 0 973299304 646057984 133132 4294967295 134512640 135730672 3221224576 3220868160 135109351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 157729 133132 301 301 0 157428 0
vsize: 630916
[startup+110.005 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 31892
Raw data (stat): 31892 (pb2sat-v2) R 31891 21152 21151 0 -1 0 240526 0 0 0 10482 518 0 0 25 0 1 0 973299304 673767424 148727 4294967295 134512640 135730672 3221224576 3220936896 134770759 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 164494 148727 301 301 0 164193 0
vsize: 657976
[startup+120.006 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 31892
Raw data (stat): 31892 (pb2sat-v2) R 31891 21152 21151 0 -1 0 252222 0 0 0 11458 542 0 0 25 0 1 0 973299304 695226368 160251 4294967295 134512640 135730672 3221224576 3221222828 135281170 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 169733 160251 301 301 0 169432 0
vsize: 678932
[startup+125.731 s]
Raw data (loadavg): 0.99 0.97 0.91 1/53 31892
Raw data (stat): 31892 (pb2sat-v2) R 31891 21152 21151 0 -1 0 252222 0 0 0 11458 542 0 0 25 0 1 0 973299304 695226368 160251 4294967295 134512640 135730672 3221224576 3221222828 135281170 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 169733 160251 301 301 0 169432 0
vsize: 0

Child status: 1
Real time (s): 125.73
CPU time (s): 125.726
CPU user time (s): 119.982
CPU system time (s): 5.74413
CPU usage (%): 99.9964
Max. virtual memory (Kb): 721040
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####