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/milp/normalized-mps-v2-20-10-neos7.opb
MD5SUMdff67dcbbc32b17a1cdb11074adc13dc
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 4506
Biggest coefficient in the objective function 8053063680000
Number of bits for the biggest coefficient in the objective function 43
Sum of the numbers in the objective function 590484474471966
Number of bits of the sum of numbers in the objective function 50
Biggest number in a constraint 536870912000000
Number of bits of the biggest number in a constraint 49
Biggest sum of numbers in a constraint 1073741839777215
Number of bits of the biggest sum of numbers50
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1266.33
Number of variables33010
Total number of constraints2578
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)566
Number of constraints which are nor clauses,nor cardinality constraints2012
Minimum length of a constraint1
Maximum length of a constraint441

Trace number 42615 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-06-16 12:51:19 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25834 boxname=wulflinc5 idbench=1134 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  dff67dcbbc32b17a1cdb11074adc13dc  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-neos7.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-neos7.opb
IDLAUNCH: 25834
/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:        704784 kB
Buffers:         18584 kB
Cached:         287908 kB
SwapCached:        664 kB
Active:          25744 kB
Inactive:       282788 kB
HighTotal:      131008 kB
HighFree:         4452 kB
LowTotal:       903652 kB
LowFree:        700332 kB
SwapTotal:     2097136 kB
SwapFree:      2095532 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5156 kB
Slab:            15624 kB
Committed_AS:    63716 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 12:52:58 (client local time) WITH STATUS 1 IN 98.2741 SECONDS
stats: 25834 7 98.2741 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): 0.92 0.95 0.90 2/54 14354
Raw data (stat): 14354 (runsolver) R 14353 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 970902004 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+10.0001 s]
Raw data (loadavg): 0.93 0.96 0.91 2/54 14354
Raw data (stat): 14354 (pb2sat-v2) R 14353 7266 7265 0 -1 0 24389 0 0 0 945 54 0 0 25 0 1 0 970902004 76402688 13460 4294967295 134512640 135730672 3221224576 3221221784 135087868 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 18653 13460 301 301 0 18352 0
vsize: 74612
[startup+20.0007 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 14354
Raw data (stat): 14354 (pb2sat-v2) R 14353 7266 7265 0 -1 0 51159 0 0 0 1886 112 0 0 25 0 1 0 970902004 153202688 29234 4294967295 134512640 135730672 3221224576 3221214440 135284119 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 37403 29234 301 301 0 37102 0
vsize: 149612
[startup+30.0021 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 14354
Raw data (stat): 14354 (pb2sat-v2) R 14353 7266 7265 0 -1 0 89171 0 0 0 2805 194 0 0 25 0 1 0 970902004 263786496 45529 4294967295 134512640 135730672 3221224576 3221213904 134546483 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 64401 45529 301 301 0 64100 0
vsize: 257604
[startup+40.0012 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 14354
Raw data (stat): 14354 (pb2sat-v2) R 14353 7266 7265 0 -1 0 104712 0 0 0 3764 235 0 0 25 0 1 0 970902004 304910336 60794 4294967295 134512640 135730672 3221224576 3221205088 134770712 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 74441 60794 301 301 0 74140 0
vsize: 297764
[startup+50.0021 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 14354
Raw data (stat): 14354 (pb2sat-v2) R 14353 7266 7265 0 -1 0 142329 0 0 0 4690 309 0 0 25 0 1 0 970902004 422846464 79822 4294967295 134512640 135730672 3221224576 3221221180 135284065 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 103234 79822 301 301 0 102933 0
vsize: 412936
[startup+60.0027 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 14354
Raw data (stat): 14354 (pb2sat-v2) R 14353 7266 7265 0 -1 0 179268 0 0 0 5606 392 0 0 25 0 1 0 970902004 523509760 91935 4294967295 134512640 135730672 3221224576 3221214456 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 127810 91935 301 301 0 127509 0
vsize: 511240
[startup+70.0036 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 14354
Raw data (stat): 14354 (pb2sat-v2) R 14353 7266 7265 0 -1 0 192358 0 0 0 6573 426 0 0 25 0 1 0 970902004 557064192 104762 4294967295 134512640 135730672 3221224576 3221199056 134546503 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 136002 104762 301 301 0 135701 0
vsize: 544008
[startup+80.0044 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 14354
Raw data (stat): 14354 (pb2sat-v2) R 14353 7266 7265 0 -1 0 211646 0 0 0 7526 472 0 0 25 0 1 0 970902004 574095360 123746 4294967295 134512640 135730672 3221224576 3221214016 134550980 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 140160 123746 301 301 0 139859 0
vsize: 560640
[startup+90.0045 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 14354
Raw data (stat): 14354 (pb2sat-v2) R 14353 7266 7265 0 -1 0 273399 0 0 0 8410 589 0 0 25 0 1 0 970902004 943656960 183479 4294967295 134512640 135730672 3221224576 3221196800 134777196 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 230385 183479 301 301 0 230084 0
vsize: 921540
[startup+98.3255 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 14354
Raw data (stat): 14354 (pb2sat-v2) R 14353 7266 7265 0 -1 0 273399 0 0 0 8410 589 0 0 25 0 1 0 970902004 943656960 183479 4294967295 134512640 135730672 3221224576 3221196800 134777196 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 230385 183479 301 301 0 230084 0
vsize: 0

Child status: 1
Real time (s): 98.3252
CPU time (s): 98.2741
CPU user time (s): 92.003
CPU system time (s): 6.27105
CPU usage (%): 99.948
Max. virtual memory (Kb): 921540
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####