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/miplib2003/normalized-mps-v2-13-7-mzzv11.opb
MD5SUMec9eb8bc5f0ce888f87dfc271da55db8
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -5109
Optimality of the best value was proved NO
Number of terms in the objective function 773
Biggest coefficient in the objective function 1000
Number of bits for the biggest coefficient in the objective function 10
Sum of the numbers in the objective function 76861
Number of bits of the sum of numbers in the objective function 17
Biggest number in a constraint 1999
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 76861
Number of bits of the biggest sum of numbers17
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1189.05
Number of variables11247
Total number of constraints19739
Number of constraints which are clauses77
Number of constraints which are cardinality constraints (but not clauses)15744
Number of constraints which are nor clauses,nor cardinality constraints3918
Minimum length of a constraint1
Maximum length of a constraint68

Trace number 35591 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc18 THE 2005-05-28 13:27:40 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24897 boxname=wulflinc18 idbench=1369 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  ec9eb8bc5f0ce888f87dfc271da55db8  /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-13-7-mzzv11.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-13-7-mzzv11.opb
IDLAUNCH: 24897
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.177
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	: 3
cpu MHz		: 451.177
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:        727416 kB
Buffers:         33548 kB
Cached:         241808 kB
SwapCached:        792 kB
Active:          23364 kB
Inactive:       254092 kB
HighTotal:      131008 kB
HighFree:        29596 kB
LowTotal:       903652 kB
LowFree:        697820 kB
SwapTotal:     2097892 kB
SwapFree:      2096240 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5120 kB
Slab:            24104 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 13:29:22 (client local time) WITH STATUS 1 IN 101.778 SECONDS
stats: 24897 7 101.778 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 0.95 0.92 2/54 2964
Raw data (stat): 2964 (runsolver) R 2963 24172 24171 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 865144855 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+10.0007 s]
Raw data (loadavg): 0.93 0.95 0.92 2/54 2964
Raw data (stat): 2964 (pb2sat) R 2963 24172 24171 0 -1 0 28743 0 0 0 939 60 0 0 25 0 1 0 865144855 88051712 17616 4294967295 134512640 135726644 3221224576 3221017656 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21497 17616 300 300 0 21197 0
vsize: 85988
[startup+20.0015 s]
Raw data (loadavg): 0.94 0.96 0.92 2/54 2964
Raw data (stat): 2964 (pb2sat) R 2963 24172 24171 0 -1 0 58887 0 0 0 1877 122 0 0 25 0 1 0 865144855 176173056 36529 4294967295 134512640 135726644 3221224576 3221027352 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43011 36530 300 300 0 42711 0
vsize: 172044
[startup+30.0014 s]
Raw data (loadavg): 0.95 0.96 0.92 2/54 2964
Raw data (stat): 2964 (pb2sat) R 2963 24172 24171 0 -1 0 99309 0 0 0 2793 206 0 0 25 0 1 0 865144855 332681216 54756 4294967295 134512640 135726644 3221224576 3221101200 134780435 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 81221 54756 300 300 0 80921 0
vsize: 324884
[startup+40.0013 s]
Raw data (loadavg): 0.95 0.96 0.92 2/54 2964
Raw data (stat): 2964 (pb2sat) R 2963 24172 24171 0 -1 0 118203 0 0 0 3754 246 0 0 25 0 1 0 865144855 351064064 73396 4294967295 134512640 135726644 3221224576 3221101728 134554711 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85709 73397 300 300 0 85409 0
vsize: 342836
[startup+50.0023 s]
Raw data (loadavg): 0.96 0.96 0.92 2/54 2964
Raw data (stat): 2964 (pb2sat) R 2963 24172 24171 0 -1 0 163274 0 0 0 4668 332 0 0 25 0 1 0 865144855 563556352 117275 4294967295 134512640 135726644 3221224576 3221021712 135280446 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 137587 117275 300 300 0 137287 0
vsize: 550348
[startup+60.0021 s]
Raw data (loadavg): 0.97 0.96 0.92 2/54 2964
Raw data (stat): 2964 (pb2sat) R 2963 24172 24171 0 -1 0 198303 0 0 0 5592 407 0 0 25 0 1 0 865144855 630661120 109127 4294967295 134512640 135726644 3221224576 3221171600 134780450 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153970 109127 300 300 0 153670 0
vsize: 615880
[startup+70.002 s]
Raw data (loadavg): 0.97 0.96 0.92 2/54 2964
Raw data (stat): 2964 (pb2sat) R 2963 24172 24171 0 -1 0 213062 0 0 0 6564 436 0 0 25 0 1 0 865144855 632823808 123636 4294967295 134512640 135726644 3221224576 3221128892 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154498 123638 300 300 0 154198 0
vsize: 617992
[startup+80.0029 s]
Raw data (loadavg): 0.97 0.96 0.92 2/54 2964
Raw data (stat): 2964 (pb2sat) R 2963 24172 24171 0 -1 0 234775 0 0 0 7518 482 0 0 25 0 1 0 865144855 663642112 145100 4294967295 134512640 135726644 3221224576 3221006632 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 162022 145100 300 300 0 161722 0
vsize: 648088
[startup+90.0029 s]
Raw data (loadavg): 0.98 0.96 0.92 2/54 2964
Raw data (stat): 2964 (pb2sat) R 2963 24172 24171 0 -1 0 252310 0 0 0 8484 517 0 0 25 0 1 0 865144855 738844672 162433 4294967295 134512640 135726644 3221224576 3221134632 135280627 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 180382 162434 300 300 0 180082 0
vsize: 721528
[startup+100.003 s]
Raw data (loadavg): 0.98 0.96 0.92 2/54 2964
Raw data (stat): 2964 (pb2sat) R 2963 24172 24171 0 -1 0 266020 0 0 0 9441 560 0 0 25 0 1 0 865144855 398499840 96864 4294967295 134512640 135726644 3221224576 3221222832 135279084 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97290 96864 300 300 0 96990 0
vsize: 389160
[startup+101.796 s]
Raw data (loadavg): 0.98 0.96 0.92 1/53 2964
Raw data (stat): 2964 (pb2sat) R 2963 24172 24171 0 -1 0 266020 0 0 0 9441 560 0 0 25 0 1 0 865144855 398499840 96864 4294967295 134512640 135726644 3221224576 3221222832 135279084 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97290 96864 300 300 0 96990 0
vsize: 0

Child status: 1
Real time (s): 101.796
CPU time (s): 101.778
CPU user time (s): 95.9774
CPU system time (s): 5.80012
CPU usage (%): 99.9822
Max. virtual memory (Kb): 721528
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####