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-v2-20-10/MIPLIB/miplib3/normalized-mps-v2-20-10-air03.opb
MD5SUM69337cf8d2b6f6cf8cc02fedc291ffcc
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 199890
Optimality of the best value was proved NO
Number of terms in the objective function 10757
Biggest coefficient in the objective function 6873
Number of bits for the biggest coefficient in the objective function 13
Sum of the numbers in the objective function 13748961
Number of bits of the sum of numbers in the objective function 24
Biggest number in a constraint 6873
Number of bits of the biggest number in a constraint 13
Biggest sum of numbers in a constraint 13748961
Number of bits of the biggest sum of numbers24
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1189.44
Number of variables10757
Total number of constraints10881
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)10881
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint3861

Trace number 42492 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-06-16 09:14:40 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25713 boxname=wulflinc2 idbench=1013 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  69337cf8d2b6f6cf8cc02fedc291ffcc  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-air03.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-air03.opb
IDLAUNCH: 25713
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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		: 451.191
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:        910156 kB
Buffers:          4920 kB
Cached:          96940 kB
SwapCached:       1432 kB
Active:          28588 kB
Inactive:        75384 kB
HighTotal:      131008 kB
HighFree:        55384 kB
LowTotal:       903652 kB
LowFree:        854772 kB
SwapTotal:     2097136 kB
SwapFree:      2094708 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5056 kB
Slab:            14808 kB
Committed_AS:    71904 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 09:16:33 (client local time) WITH STATUS 1 IN 113.451 SECONDS
stats: 25713 7 113.451 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: 291404
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): 0.85 0.95 0.91 1/54 8285
Raw data (stat): 8285 (runsolver) R 8284 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 969605801 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+10.0013 s]
Raw data (loadavg): 0.87 0.95 0.91 2/54 8285
Raw data (stat): 8285 (pb2sat-v2) R 8284 31399 31398 0 -1 0 12143 0 0 0 969 30 0 0 25 0 1 0 969605801 40251392 6700 4294967295 134512640 135730672 3221224576 3221204472 135104817 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 9827 6700 301 301 0 9526 0
vsize: 39308
[startup+20.0019 s]
Raw data (loadavg): 0.89 0.96 0.91 2/54 8285
Raw data (stat): 8285 (pb2sat-v2) R 8284 31399 31398 0 -1 0 28318 0 0 0 1925 73 0 0 25 0 1 0 969605801 88027136 16866 4294967295 134512640 135730672 3221224576 3217519464 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21491 16866 301 301 0 21190 0
vsize: 85964
[startup+30.0015 s]
Raw data (loadavg): 0.91 0.96 0.91 2/54 8285
Raw data (stat): 8285 (pb2sat-v2) R 8284 31399 31398 0 -1 0 56130 0 0 0 2863 135 0 0 25 0 1 0 969605801 174694400 33699 4294967295 134512640 135730672 3221224576 3220162568 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42650 33699 301 301 0 42349 0
vsize: 170600
[startup+40.0015 s]
Raw data (loadavg): 0.92 0.96 0.91 2/54 8285
Raw data (stat): 8285 (pb2sat-v2) R 8284 31399 31398 0 -1 0 81866 0 0 0 3808 190 0 0 25 0 1 0 969605801 239407104 50010 4294967295 134512640 135730672 3221224576 3216654728 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 58449 50010 301 301 0 58148 0
vsize: 233796
[startup+50.0019 s]
Raw data (loadavg): 0.93 0.96 0.91 2/54 8285
Raw data (stat): 8285 (pb2sat-v2) R 8284 31399 31398 0 -1 0 110153 0 0 0 4738 260 0 0 25 0 1 0 969605801 346542080 65787 4294967295 134512640 135730672 3221224576 3220488624 134786020 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 84605 65787 301 301 0 84304 0
vsize: 338420
[startup+60.0026 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 8285
Raw data (stat): 8285 (pb2sat-v2) R 8284 31399 31398 0 -1 0 149903 0 0 0 5664 335 0 0 25 0 1 0 969605801 476778496 86951 4294967295 134512640 135730672 3221224576 3218365956 135281170 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 116401 86951 301 301 0 116100 0
vsize: 465604
[startup+70.0023 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 8285
Raw data (stat): 8285 (pb2sat-v2) R 8284 31399 31398 0 -1 0 162272 0 0 0 6634 364 0 0 25 0 1 0 969605801 485171200 99079 4294967295 134512640 135730672 3221224576 3218544600 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 118450 99080 301 301 0 118149 0
vsize: 473800
[startup+80.002 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 8285
Raw data (stat): 8285 (pb2sat-v2) R 8284 31399 31398 0 -1 0 199224 0 0 0 7552 447 0 0 25 0 1 0 969605801 593674240 111230 4294967295 134512640 135730672 3221224576 3217243872 134786196 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 144940 111231 301 301 0 144639 0
vsize: 579760
[startup+90.0017 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 8285
Raw data (stat): 8285 (pb2sat-v2) R 8284 31399 31398 0 -1 0 215413 0 0 0 8511 488 0 0 25 0 1 0 969605801 652640256 127207 4294967295 134512640 135730672 3221224576 3217210176 134551366 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 159336 127207 301 301 0 159035 0
vsize: 637344
[startup+100.002 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 8285
Raw data (stat): 8285 (pb2sat-v2) R 8284 31399 31398 0 -1 0 234338 0 0 0 9471 528 0 0 25 0 1 0 969605801 682377216 145884 4294967295 134512640 135730672 3221224576 3218224904 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 166596 145884 301 301 0 166295 0
vsize: 666384
[startup+110.002 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 8285
Raw data (stat): 8285 (pb2sat-v2) R 8284 31399 31398 0 -1 0 243223 0 0 0 10437 562 0 0 25 0 1 0 969605801 386785280 94009 4294967295 134512640 135730672 3221224576 3221222764 135281170 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 94430 94009 301 301 0 94129 0
vsize: 377720
[startup+113.457 s]
Raw data (loadavg): 0.97 0.97 0.91 1/53 8285
Raw data (stat): 8285 (pb2sat-v2) R 8284 31399 31398 0 -1 0 243223 0 0 0 10437 562 0 0 25 0 1 0 969605801 386785280 94009 4294967295 134512640 135730672 3221224576 3221222764 135281170 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 94430 94009 301 301 0 94129 0
vsize: 0

Child status: 1
Real time (s): 113.456
CPU time (s): 113.451
CPU user time (s): 107.634
CPU system time (s): 5.81712
CPU usage (%): 99.9952
Max. virtual memory (Kb): 666384
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####