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/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-afiro.opb
MD5SUMb9a386a980af3ebe560fd16ca36e17ae
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -1486831
Optimality of the best value was proved NO
Number of terms in the objective function 100
Biggest coefficient in the objective function 131072000
Number of bits for the biggest coefficient in the objective function 27
Sum of the numbers in the objective function 309329625
Number of bits of the sum of numbers in the objective function 29
Biggest number in a constraint 1273495552
Number of bits of the biggest number in a constraint 31
Biggest sum of numbers in a constraint 20473426875
Number of bits of the biggest sum of numbers35
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark484.119
Number of variables640
Total number of constraints27
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints27
Minimum length of a constraint20
Maximum length of a constraint180

Trace number 42669 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 13:41:29 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25889 boxname=wulflinc4 idbench=1189 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  b9a386a980af3ebe560fd16ca36e17ae  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-afiro.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-afiro.opb
IDLAUNCH: 25889
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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		: 451.169
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:        845920 kB
Buffers:          1536 kB
Cached:         165520 kB
SwapCached:        904 kB
Active:          24244 kB
Inactive:       144956 kB
HighTotal:      131008 kB
HighFree:        74004 kB
LowTotal:       903652 kB
LowFree:        771916 kB
SwapTotal:     2097136 kB
SwapFree:      2095236 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            13780 kB
Committed_AS:    71908 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 13:43:24 (client local time) WITH STATUS 1 IN 114.805 SECONDS
stats: 25889 7 114.805 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 0.97 0.92 2/54 27088
Raw data (stat): 27088 (runsolver) R 27087 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 971192839 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+10.0007 s]
Raw data (loadavg): 0.93 0.97 0.92 2/54 27088
Raw data (stat): 27088 (pb2sat-v2) R 27087 21152 21151 0 -1 0 27053 0 0 0 936 63 0 0 25 0 1 0 971192839 81879040 16133 4294967295 134512640 135730672 3221224576 3221143080 135284224 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 19990 16133 301 301 0 19689 0
vsize: 79960
[startup+20.0023 s]
Raw data (loadavg): 0.94 0.97 0.92 2/54 27088
Raw data (stat): 27088 (pb2sat-v2) R 27087 21152 21151 0 -1 0 54213 0 0 0 1881 117 0 0 25 0 1 0 971192839 166522880 32347 4294967295 134512640 135730672 3221224576 3221145324 134608014 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 40655 32349 301 301 0 40354 0
vsize: 162620
[startup+30.0031 s]
Raw data (loadavg): 0.95 0.97 0.92 2/54 27088
Raw data (stat): 27088 (pb2sat-v2) R 27087 21152 21151 0 -1 0 93686 0 0 0 2808 191 0 0 25 0 1 0 971192839 292397056 50154 4294967295 134512640 135730672 3221224576 3221149032 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 71386 50154 301 301 0 71085 0
vsize: 285544
[startup+40.003 s]
Raw data (loadavg): 0.95 0.97 0.92 2/54 27088
Raw data (stat): 27088 (pb2sat-v2) R 27087 21152 21151 0 -1 0 107562 0 0 0 3781 218 0 0 25 0 1 0 971192839 334204928 63815 4294967295 134512640 135730672 3221224576 3221158312 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 81593 63815 301 301 0 81292 0
vsize: 326372
[startup+50.0038 s]
Raw data (loadavg): 0.96 0.97 0.92 2/54 27088
Raw data (stat): 27088 (pb2sat-v2) R 27087 21152 21151 0 -1 0 127357 0 0 0 4746 253 0 0 25 0 1 0 971192839 362860544 83379 4294967295 134512640 135730672 3221224576 3221157248 134786278 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 88589 83380 301 301 0 88288 0
vsize: 354356
[startup+60.0034 s]
Raw data (loadavg): 0.97 0.97 0.92 2/54 27088
Raw data (stat): 27088 (pb2sat-v2) R 27087 21152 21151 0 -1 0 187754 0 0 0 5634 365 0 0 25 0 1 0 971192839 586616832 99656 4294967295 134512640 135730672 3221224576 3221159616 134546494 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 143217 99656 301 301 0 142916 0
vsize: 572868
[startup+70.0046 s]
Raw data (loadavg): 0.97 0.97 0.92 2/54 27088
Raw data (stat): 27088 (pb2sat-v2) R 27087 21152 21151 0 -1 0 198447 0 0 0 6611 389 0 0 25 0 1 0 971192839 620171264 110157 4294967295 134512640 135730672 3221224576 3221161560 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 151409 110157 301 301 0 151108 0
vsize: 605636
[startup+80.0055 s]
Raw data (loadavg): 0.98 0.97 0.92 2/54 27088
Raw data (stat): 27088 (pb2sat-v2) R 27087 21152 21151 0 -1 0 214702 0 0 0 7583 417 0 0 25 0 1 0 971192839 634634240 126182 4294967295 134512640 135730672 3221224576 3221166688 134550459 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154940 126183 301 301 0 154639 0
vsize: 619760
[startup+90.0053 s]
Raw data (loadavg): 0.98 0.97 0.92 2/54 27088
Raw data (stat): 27088 (pb2sat-v2) R 27087 21152 21151 0 -1 0 234369 0 0 0 8544 456 0 0 25 0 1 0 971192839 663027712 145620 4294967295 134512640 135730672 3221224576 3221168056 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 161872 145621 301 301 0 161571 0
vsize: 647488
[startup+100.006 s]
Raw data (loadavg): 0.98 0.97 0.92 2/54 27088
Raw data (stat): 27088 (pb2sat-v2) R 27087 21152 21151 0 -1 0 250215 0 0 0 9514 486 0 0 25 0 1 0 971192839 736219136 161281 4294967295 134512640 135730672 3221224576 3221169312 134786278 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 179741 161282 301 301 0 179440 0
vsize: 718964
[startup+110.007 s]
Raw data (loadavg): 0.98 0.97 0.92 2/54 27088
Raw data (stat): 27088 (pb2sat-v2) R 27087 21152 21151 0 -1 0 260089 0 0 0 10481 519 0 0 25 0 1 0 971192839 390737920 94944 4294967295 134512640 135730672 3221224576 3221222764 135281249 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 95395 94944 301 301 0 95094 0
vsize: 381580
[startup+114.802 s]
Raw data (loadavg): 0.98 0.97 0.92 1/53 27088
Raw data (stat): 27088 (pb2sat-v2) R 27087 21152 21151 0 -1 0 260089 0 0 0 10481 519 0 0 25 0 1 0 971192839 390737920 94944 4294967295 134512640 135730672 3221224576 3221222764 135281249 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 95395 94944 301 301 0 95094 0
vsize: 0

Child status: 1
Real time (s): 114.801
CPU time (s): 114.805
CPU user time (s): 109.407
CPU system time (s): 5.39718
CPU usage (%): 100.003
Max. virtual memory (Kb): 718964
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####