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-neos15.opb
MD5SUM584a89cb58a30b93d7847990b5296729
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 10400
Biggest coefficient in the objective function 536870912000000000000
Number of bits for the biggest coefficient in the objective function 69
Sum of the numbers in the objective function 77389326876814405009408
Number of bits of the sum of numbers in the objective function 77
Biggest number in a constraint 536870912000000000000
Number of bits of the biggest number in a constraint 69
Biggest sum of numbers in a constraint 77389326876814405009408
Number of bits of the biggest sum of numbers77
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1240.48
Number of variables17600
Total number of constraints792
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)160
Number of constraints which are nor clauses,nor cardinality constraints632
Minimum length of a constraint1
Maximum length of a constraint150

Trace number 35347 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-05-28 12:57:46 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24650 boxname=wulflinc3 idbench=1122 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  584a89cb58a30b93d7847990b5296729  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-neos15.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-neos15.opb
IDLAUNCH: 24650
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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		: 451.190
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:        840284 kB
Buffers:         33664 kB
Cached:         138884 kB
SwapCached:        240 kB
Active:          51492 kB
Inactive:       123660 kB
HighTotal:      131008 kB
HighFree:         4536 kB
LowTotal:       903652 kB
LowFree:        835748 kB
SwapTotal:     2097136 kB
SwapFree:      2096480 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6324 kB
Slab:            13588 kB
Committed_AS:    71796 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:59:36 (client local time) WITH STATUS 1 IN 110.436 SECONDS
stats: 24650 7 110.436 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 0.91 1/54 28675
Raw data (stat): 28675 (runsolver) R 28674 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806750944 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+10.0004 s]
Raw data (loadavg): 0.93 0.96 0.91 2/54 28675
Raw data (stat): 28675 (pb2sat) R 28674 20224 20223 0 -1 0 26877 0 0 0 940 58 0 0 25 0 1 0 806750944 89362432 15779 4294967295 134512640 135726644 3221224576 3217130380 135287443 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21817 15779 300 300 0 21517 0
vsize: 87268
[startup+20.0002 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 28675
Raw data (stat): 28675 (pb2sat) R 28674 20224 20223 0 -1 0 56275 0 0 0 1881 117 0 0 25 0 1 0 806750944 176402432 33951 4294967295 134512640 135726644 3221224576 3217131620 134766464 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43067 33951 300 300 0 42767 0
vsize: 172268
[startup+30.004 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 28675
Raw data (stat): 28675 (pb2sat) R 28674 20224 20223 0 -1 0 97747 0 0 0 2795 204 0 0 25 0 1 0 806750944 303005696 53225 4294967295 134512640 135726644 3221224576 3217068128 134554579 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 73976 53225 300 300 0 73676 0
vsize: 295904
[startup+40.0039 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 28675
Raw data (stat): 28675 (pb2sat) R 28674 20224 20223 0 -1 0 114118 0 0 0 3762 237 0 0 25 0 1 0 806750944 349265920 69363 4294967295 134512640 135726644 3221224576 3217107408 134605226 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85270 69363 300 300 0 84970 0
vsize: 341080
[startup+50.0052 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 28675
Raw data (stat): 28675 (pb2sat) R 28674 20224 20223 0 -1 0 144863 0 0 0 4706 294 0 0 25 0 1 0 806750944 537563136 99493 4294967295 134512640 135726644 3221224576 3217160360 135280682 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 131241 99493 300 300 0 130941 0
vsize: 524964
[startup+60.0056 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 28675
Raw data (stat): 28675 (pb2sat) R 28674 20224 20223 0 -1 0 196429 0 0 0 5605 395 0 0 25 0 1 0 806750944 600985600 107290 4294967295 134512640 135726644 3221224576 3217163360 134773403 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 146725 107290 300 300 0 146425 0
vsize: 586900
[startup+70.0054 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 28675
Raw data (stat): 28675 (pb2sat) R 28674 20224 20223 0 -1 0 208699 0 0 0 6577 423 0 0 25 0 1 0 806750944 634540032 119341 4294967295 134512640 135726644 3221224576 3217112192 134607330 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154917 119342 300 300 0 154617 0
vsize: 619668
[startup+80.0067 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 28675
Raw data (stat): 28675 (pb2sat) R 28674 20224 20223 0 -1 0 228678 0 0 0 7540 460 0 0 25 0 1 0 806750944 659410944 139072 4294967295 134512640 135726644 3221224576 3217156120 134554775 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 160989 139072 300 300 0 160689 0
vsize: 643956
[startup+90.0069 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 28675
Raw data (stat): 28675 (pb2sat) R 28674 20224 20223 0 -1 0 245792 0 0 0 8506 494 0 0 25 0 1 0 806750944 733937664 155989 4294967295 134512640 135726644 3221224576 3217090092 134604446 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 179184 155989 300 300 0 178884 0
vsize: 716736
[startup+100.007 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 28675
Raw data (stat): 28675 (pb2sat) R 28674 20224 20223 0 -1 0 265823 0 0 0 9465 535 0 0 25 0 1 0 806750944 763777024 175790 4294967295 134512640 135726644 3221224576 3217667316 135138202 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 186469 175790 300 300 0 186169 0
vsize: 745876
[startup+110.008 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 28675
Raw data (stat): 28675 (pb2sat) R 28674 20224 20223 0 -1 0 265825 0 0 0 10450 550 0 0 25 0 1 0 806750944 402788352 97899 4294967295 134512640 135726644 3221224576 3221222976 134778976 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 98337 97899 300 300 0 98037 0
vsize: 393348
[startup+110.437 s]
Raw data (loadavg): 0.98 0.97 0.91 1/53 28675
Raw data (stat): 28675 (pb2sat) R 28674 20224 20223 0 -1 0 265825 0 0 0 10450 550 0 0 25 0 1 0 806750944 402788352 97899 4294967295 134512640 135726644 3221224576 3221222976 134778976 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 98337 97899 300 300 0 98037 0
vsize: 0

Child status: 1
Real time (s): 110.437
CPU time (s): 110.436
CPU user time (s): 104.72
CPU system time (s): 5.71613
CPU usage (%): 99.9995
Max. virtual memory (Kb): 745876
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####