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/milp/normalized-mps-v2-13-7-neos6.opb
MD5SUM0633214154e8bab02f648560b9bfa54f
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 4460
Biggest coefficient in the objective function 524288
Number of bits for the biggest coefficient in the objective function 20
Sum of the numbers in the objective function 233832225
Number of bits of the sum of numbers in the objective function 28
Biggest number in a constraint 524288
Number of bits of the biggest number in a constraint 20
Biggest sum of numbers in a constraint 233832225
Number of bits of the biggest sum of numbers28
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.18697
Number of variables17260
Total number of constraints9376
Number of constraints which are clauses48
Number of constraints which are cardinality constraints (but not clauses)9095
Number of constraints which are nor clauses,nor cardinality constraints233
Minimum length of a constraint1
Maximum length of a constraint834

Trace number 42999 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-06-16 20:57:46 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=26218 boxname=wulflinc6 idbench=1518 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  0633214154e8bab02f648560b9bfa54f  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-13-7-neos6.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-13-7-neos6.opb
IDLAUNCH: 26218
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.042
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		: 451.042
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:        650308 kB
Buffers:         21824 kB
Cached:         339228 kB
SwapCached:        980 kB
Active:          33400 kB
Inactive:       329768 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        650056 kB
SwapTotal:     2097136 kB
SwapFree:      2095216 kB
Dirty:              36 kB
Writeback:           0 kB
Mapped:           5092 kB
Slab:            15356 kB
Committed_AS:    63848 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 20:59:39 (client local time) WITH STATUS 1 IN 112.898 SECONDS
stats: 26218 7 112.898 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): 0.85 0.94 0.90 2/54 26290
Raw data (stat): 26290 (runsolver) R 26289 25568 25567 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 973820073 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+10.0013 s]
Raw data (loadavg): 0.88 0.94 0.90 2/54 26290
Raw data (stat): 26290 (pb2sat-v2) R 26289 25568 25567 0 -1 0 23466 0 0 0 950 49 0 0 25 0 1 0 973820073 77033472 12411 4294967295 134512640 135730672 3221224576 3220891760 134784074 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 18807 12411 301 301 0 18506 0
vsize: 75228
[startup+20.0022 s]
Raw data (loadavg): 0.89 0.94 0.90 2/54 26290
Raw data (stat): 26290 (pb2sat-v2) R 26289 25568 25567 0 -1 0 48418 0 0 0 1894 106 0 0 25 0 1 0 973820073 151941120 26415 4294967295 134512640 135730672 3221224576 3221121696 134788138 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 37095 26415 301 301 0 36794 0
vsize: 148380
[startup+30.0023 s]
Raw data (loadavg): 0.91 0.94 0.90 2/54 26290
Raw data (stat): 26290 (pb2sat-v2) R 26289 25568 25567 0 -1 0 74136 0 0 0 2841 159 0 0 25 0 1 0 973820073 216383488 42738 4294967295 134512640 135730672 3221224576 3221165648 134770852 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 52828 42738 301 301 0 52527 0
vsize: 211312
[startup+40.0039 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 26290
Raw data (stat): 26290 (pb2sat-v2) R 26289 25568 25567 0 -1 0 97563 0 0 0 3787 213 0 0 25 0 1 0 973820073 300269568 53675 4294967295 134512640 135730672 3221224576 3221146160 134546483 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 73308 53676 301 301 0 73007 0
vsize: 293232
[startup+50.0044 s]
Raw data (loadavg): 0.93 0.95 0.90 2/54 26290
Raw data (stat): 26290 (pb2sat-v2) R 26289 25568 25567 0 -1 0 114247 0 0 0 4748 253 0 0 25 0 1 0 973820073 313651200 70119 4294967295 134512640 135730672 3221224576 3221201012 135281156 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 76575 70119 301 301 0 76274 0
vsize: 306300
[startup+60.0046 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 26290
Raw data (stat): 26290 (pb2sat-v2) R 26289 25568 25567 0 -1 0 174429 0 0 0 5627 373 0 0 25 0 1 0 973820073 533737472 87194 4294967295 134512640 135730672 3221224576 3221179184 134549515 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 130307 87194 301 301 0 130006 0
vsize: 521228
[startup+70.005 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 26290
Raw data (stat): 26290 (pb2sat-v2) R 26289 25568 25567 0 -1 0 185928 0 0 0 6601 400 0 0 25 0 1 0 973820073 567291904 98488 4294967295 134512640 135730672 3221224576 3221164832 134788824 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 138499 98489 301 301 0 138198 0
vsize: 553996
[startup+80.0049 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 26290
Raw data (stat): 26290 (pb2sat-v2) R 26289 25568 25567 0 -1 0 198736 0 0 0 7574 427 0 0 25 0 1 0 973820073 567291904 111066 4294967295 134512640 135730672 3221224576 3221105792 134770712 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 138499 111066 301 301 0 138198 0
vsize: 553996
[startup+90.005 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 26290
Raw data (stat): 26290 (pb2sat-v2) R 26289 25568 25567 0 -1 0 213786 0 0 0 8544 457 0 0 25 0 1 0 973820073 577159168 125891 4294967295 134512640 135730672 3221224576 3221201432 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 140908 125892 301 301 0 140607 0
vsize: 563632
[startup+100.006 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 26290
Raw data (stat): 26290 (pb2sat-v2) R 26289 25568 25567 0 -1 0 226242 0 0 0 9520 482 0 0 25 0 1 0 973820073 639115264 138175 4294967295 134512640 135730672 3221224576 3221208896 134788801 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 156034 138175 301 301 0 155733 0
vsize: 624136
[startup+110.006 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 26290
Raw data (stat): 26290 (pb2sat-v2) R 26289 25568 25567 0 -1 0 243202 0 0 0 10467 534 0 0 25 0 1 0 973820073 294686720 71783 4294967295 134512640 135730672 3221224576 3221222976 134782612 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 71945 71783 301 301 0 71644 0
vsize: 287780
[startup+112.881 s]
Raw data (loadavg): 0.97 0.95 0.91 1/53 26290
Raw data (stat): 26290 (pb2sat-v2) R 26289 25568 25567 0 -1 0 243202 0 0 0 10467 534 0 0 25 0 1 0 973820073 294686720 71783 4294967295 134512640 135730672 3221224576 3221222976 134782612 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 71945 71783 301 301 0 71644 0
vsize: 0

Child status: 1
Real time (s): 112.88
CPU time (s): 112.898
CPU user time (s): 107.399
CPU system time (s): 5.49916
CPU usage (%): 100.016
Max. virtual memory (Kb): 624136
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####