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-air05.opb
MD5SUM02b9fdfc96e8b88ab6df67318e21abbc
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 29720
Optimality of the best value was proved NO
Number of terms in the objective function 7195
Biggest coefficient in the objective function 2679
Number of bits for the biggest coefficient in the objective function 12
Sum of the numbers in the objective function 3908448
Number of bits of the sum of numbers in the objective function 22
Biggest number in a constraint 2679
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 3908448
Number of bits of the biggest sum of numbers22
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1175.15
Number of variables7195
Total number of constraints7621
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)7621
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint404

Trace number 42879 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-16 17:39:55 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=26099 boxname=wulflinc3 idbench=1399 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  02b9fdfc96e8b88ab6df67318e21abbc  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-air05.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-air05.opb
IDLAUNCH: 26099
/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:        715780 kB
Buffers:         23152 kB
Cached:         273512 kB
SwapCached:        768 kB
Active:          34948 kB
Inactive:       263856 kB
HighTotal:      131008 kB
HighFree:         4200 kB
LowTotal:       903652 kB
LowFree:        711580 kB
SwapTotal:     2097136 kB
SwapFree:      2095372 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            14360 kB
Committed_AS:    71904 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 17:41:51 (client local time) WITH STATUS 1 IN 116.411 SECONDS
stats: 26099 7 116.411 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 45244
c big objective detected
c trying from 0 to 511

	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): 0.84 0.94 0.90 1/54 27351
Raw data (stat): 27351 (runsolver) R 27350 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 972624551 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+10.0003 s]
Raw data (loadavg): 0.87 0.94 0.90 2/54 27351
Raw data (stat): 27351 (pb2sat-v2) R 27350 20224 20223 0 -1 0 13671 0 0 0 969 29 0 0 25 0 1 0 972624551 42070016 7964 4294967295 134512640 135730672 3221224576 3221222756 135281249 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 10271 7964 301 301 0 9970 0
vsize: 41084
[startup+20.001 s]
Raw data (loadavg): 0.89 0.94 0.90 2/54 27351
Raw data (stat): 27351 (pb2sat-v2) R 27350 20224 20223 0 -1 0 26725 0 0 0 1938 59 0 0 25 0 1 0 972624551 87158784 15551 4294967295 134512640 135730672 3221224576 3219114720 134786464 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21279 15552 301 301 0 20978 0
vsize: 85116
[startup+30.0019 s]
Raw data (loadavg): 0.90 0.94 0.90 2/54 27351
Raw data (stat): 27351 (pb2sat-v2) R 27350 20224 20223 0 -1 0 54413 0 0 0 2880 118 0 0 25 0 1 0 972624551 173719552 32008 4294967295 134512640 135730672 3221224576 3218114840 134546567 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 42412 32009 301 301 0 42111 0
vsize: 169648
[startup+40.0017 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 27351
Raw data (stat): 27351 (pb2sat-v2) R 27350 20224 20223 0 -1 0 81168 0 0 0 3824 174 0 0 25 0 1 0 972624551 245198848 49348 4294967295 134512640 135730672 3221224576 3220817380 135291157 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 59863 49348 301 301 0 59562 0
vsize: 239452
[startup+50.0015 s]
Raw data (loadavg): 0.93 0.94 0.90 2/54 27351
Raw data (stat): 27351 (pb2sat-v2) R 27350 20224 20223 0 -1 0 107760 0 0 0 4759 240 0 0 25 0 1 0 972624551 344629248 63427 4294967295 134512640 135730672 3221224576 3219271224 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 84138 63427 301 301 0 83837 0
vsize: 336552
[startup+60.0014 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 27351
Raw data (stat): 27351 (pb2sat-v2) R 27350 20224 20223 0 -1 0 148763 0 0 0 5681 317 0 0 25 0 1 0 972624551 547659776 103272 4294967295 134512640 135730672 3221224576 3219980224 134775425 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 133706 103274 301 301 0 133405 0
vsize: 534824
[startup+70.0013 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 27351
Raw data (stat): 27351 (pb2sat-v2) R 27350 20224 20223 0 -1 0 159881 0 0 0 6652 346 0 0 25 0 1 0 972624551 482168832 95718 4294967295 134512640 135730672 3221224576 3219078896 135284107 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 117717 95718 301 301 0 117416 0
vsize: 470868
[startup+80.0021 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 27351
Raw data (stat): 27351 (pb2sat-v2) R 27350 20224 20223 0 -1 0 196458 0 0 0 7572 426 0 0 25 0 1 0 972624551 589320192 107498 4294967295 134512640 135730672 3221224576 3220244560 135282737 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 143877 107498 301 301 0 143576 0
vsize: 575508
[startup+90.0019 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 27351
Raw data (stat): 27351 (pb2sat-v2) R 27350 20224 20223 0 -1 0 212522 0 0 0 8535 464 0 0 25 0 1 0 972624551 648015872 123352 4294967295 134512640 135730672 3221224576 3220402832 134546351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 158207 123352 301 301 0 157906 0
vsize: 632828
[startup+100.002 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 27351
Raw data (stat): 27351 (pb2sat-v2) R 27350 20224 20223 0 -1 0 231238 0 0 0 9495 504 0 0 25 0 1 0 972624551 677347328 141824 4294967295 134512640 135730672 3221224576 3219225764 135281170 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 165368 141824 301 301 0 165067 0
vsize: 661472
[startup+110.003 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 27351
Raw data (stat): 27351 (pb2sat-v2) R 27350 20224 20223 0 -1 0 244736 0 0 0 10465 534 0 0 25 0 1 0 972624551 701374464 155130 4294967295 134512640 135730672 3221224576 3221223040 134736337 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 171234 155130 301 301 0 170933 0
vsize: 684936
[startup+116.419 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 27351
Raw data (stat): 27351 (pb2sat-v2) R 27350 20224 20223 0 -1 0 244736 0 0 0 10465 534 0 0 25 0 1 0 972624551 701374464 155130 4294967295 134512640 135730672 3221224576 3221223040 134736337 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 171234 155130 301 301 0 170933 0
vsize: 0

Child status: 1
Real time (s): 116.419
CPU time (s): 116.411
CPU user time (s): 110.761
CPU system time (s): 5.65014
CPU usage (%): 99.9936
Max. virtual memory (Kb): 684936
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####