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/MIPLIB/miplib3/normalized-mps-v2-13-7-l152lav.opb
MD5SUM9d4ce12b138a2bef65a1f401ec9d1f01
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 5046
Optimality of the best value was proved NO
Number of terms in the objective function 1989
Biggest coefficient in the objective function 268
Number of bits for the biggest coefficient in the objective function 9
Sum of the numbers in the objective function 382524
Number of bits of the sum of numbers in the objective function 19
Biggest number in a constraint 268
Number of bits of the biggest number in a constraint 9
Biggest sum of numbers in a constraint 382524
Number of bits of the biggest sum of numbers19
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1175.69
Number of variables1989
Total number of constraints2086
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)2085
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint1
Maximum length of a constraint1989

Trace number 35638 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc7 THE 2005-05-28 13:38:39 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24950 boxname=wulflinc7 idbench=1422 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  9d4ce12b138a2bef65a1f401ec9d1f01  /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-13-7-l152lav.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-13-7-l152lav.opb
IDLAUNCH: 24950
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.050
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		: 451.050
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:        688680 kB
Buffers:         34188 kB
Cached:         290412 kB
SwapCached:        644 kB
Active:          18960 kB
Inactive:       307692 kB
HighTotal:      131008 kB
HighFree:          644 kB
LowTotal:       903652 kB
LowFree:        688036 kB
SwapTotal:     2097136 kB
SwapFree:      2095560 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5108 kB
Slab:            13432 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 13:40:24 (client local time) WITH STATUS 1 IN 105.512 SECONDS
stats: 24950 7 105.512 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): 0.91 0.93 0.90 2/54 10336
Raw data (stat): 10336 (runsolver) R 10335 24300 24299 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 807012362 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+9.99995 s]
Raw data (loadavg): 0.92 0.93 0.91 2/54 10336
Raw data (stat): 10336 (pb2sat) R 10335 24300 24299 0 -1 0 29892 0 0 0 936 62 0 0 25 0 1 0 807012362 91492352 18737 4294967295 134512640 135726644 3221224576 3220457752 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22337 18737 300 300 0 22037 0
vsize: 89348
[startup+20.0006 s]
Raw data (loadavg): 0.93 0.93 0.91 2/54 10336
Raw data (stat): 10336 (pb2sat) R 10335 24300 24299 0 -1 0 58634 0 0 0 1875 123 0 0 25 0 1 0 807012362 178667520 36254 4294967295 134512640 135726644 3221224576 3221048092 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43620 36255 300 300 0 43320 0
vsize: 174480
[startup+30.0005 s]
Raw data (loadavg): 0.94 0.93 0.91 2/54 10336
Raw data (stat): 10336 (pb2sat) R 10335 24300 24299 0 -1 0 97277 0 0 0 2795 203 0 0 25 0 1 0 807012362 295809024 52705 4294967295 134512640 135726644 3221224576 3220785352 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 72219 52706 300 300 0 71919 0
vsize: 288876
[startup+40.0009 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 10336
Raw data (stat): 10336 (pb2sat) R 10335 24300 24299 0 -1 0 115245 0 0 0 3757 242 0 0 25 0 1 0 807012362 349638656 70439 4294967295 134512640 135726644 3221224576 3220485328 134554691 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85361 70440 300 300 0 85061 0
vsize: 341444
[startup+50.0018 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 10336
Raw data (stat): 10336 (pb2sat) R 10335 24300 24299 0 -1 0 158971 0 0 0 4672 326 0 0 25 0 1 0 807012362 557400064 112973 4294967295 134512640 135726644 3221224576 3220571712 135280446 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 136084 112973 300 300 0 135784 0
vsize: 544336
[startup+60.103 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 10336
Raw data (stat): 10336 (pb2sat) R 10335 24300 24299 0 -1 0 194195 0 0 0 5602 407 0 0 25 0 1 0 807012362 590950400 105016 4294967295 134512640 135726644 3221224576 3220473752 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 144275 105016 300 300 0 143975 0
vsize: 577100
[startup+70.1037 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 10336
Raw data (stat): 10336 (pb2sat) R 10335 24300 24299 0 -1 0 206185 0 0 0 6575 434 0 0 25 0 1 0 807012362 626937856 116805 4294967295 134512640 135726644 3221224576 3220651432 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153061 116807 300 300 0 152761 0
vsize: 612244
[startup+80.1033 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 10336
Raw data (stat): 10336 (pb2sat) R 10335 24300 24299 0 -1 0 226620 0 0 0 7535 475 0 0 25 0 1 0 807012362 656809984 137009 4294967295 134512640 135726644 3221224576 3220459680 134782828 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 160354 137012 300 300 0 160054 0
vsize: 641416
[startup+90.1034 s]
Raw data (loadavg): 0.98 0.94 0.91 2/54 10336
Raw data (stat): 10336 (pb2sat) R 10335 24300 24299 0 -1 0 247223 0 0 0 8494 516 0 0 25 0 1 0 807012362 737013760 157377 4294967295 134512640 135726644 3221224576 3220814800 134780348 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 179935 157377 300 300 0 179635 0
vsize: 719740
[startup+100.104 s]
Raw data (loadavg): 0.98 0.94 0.91 2/54 10336
Raw data (stat): 10336 (pb2sat) R 10335 24300 24299 0 -1 0 263756 0 0 0 9459 550 0 0 25 0 1 0 807012362 762122240 173723 4294967295 134512640 135726644 3221224576 3220801408 135104079 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 186065 173723 300 300 0 185765 0
vsize: 744260
[startup+105.52 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 10336
Raw data (stat): 10336 (pb2sat) R 10335 24300 24299 0 -1 0 263756 0 0 0 9459 550 0 0 25 0 1 0 807012362 762122240 173723 4294967295 134512640 135726644 3221224576 3220801408 135104079 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 186065 173723 300 300 0 185765 0
vsize: 0

Child status: 1
Real time (s): 105.52
CPU time (s): 105.512
CPU user time (s): 99.6489
CPU system time (s): 5.86311
CPU usage (%): 99.9922
Max. virtual memory (Kb): 744260
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####