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-fixnet6.opb
MD5SUM1eea2f19d665ab2eda88d95b10eac4ce
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 48386177
Optimality of the best value was proved NO
Number of terms in the objective function 11714
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 513431911800
Number of bits of the sum of numbers in the objective function 39
Biggest number in a constraint 1073741824
Number of bits of the biggest number in a constraint 31
Biggest sum of numbers in a constraint 513431911800
Number of bits of the biggest sum of numbers39
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1260.76
Number of variables14036
Total number of constraints978
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)378
Number of constraints which are nor clauses,nor cardinality constraints600
Minimum length of a constraint1
Maximum length of a constraint1523

Trace number 35248 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc8 THE 2005-05-28 12:33:38 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24556 boxname=wulflinc8 idbench=1028 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  1eea2f19d665ab2eda88d95b10eac4ce  /oldhome/oroussel/tmp/wulflinc8/normalized-mps-v2-20-10-fixnet6.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc8/normalized-mps-v2-20-10-fixnet6.opb
IDLAUNCH: 24556
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.007
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		: 451.007
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:        682976 kB
Buffers:         37496 kB
Cached:         291476 kB
SwapCached:        896 kB
Active:          27200 kB
Inactive:       304060 kB
HighTotal:      131008 kB
HighFree:         3500 kB
LowTotal:       903652 kB
LowFree:        679476 kB
SwapTotal:     2097136 kB
SwapFree:      2095540 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5196 kB
Slab:            14712 kB
Committed_AS:    63732 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:35:28 (client local time) WITH STATUS 1 IN 110.154 SECONDS
stats: 24556 7 110.154 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 0.90 2/54 16207
Raw data (stat): 16207 (runsolver) R 16206 3132 3131 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 793047741 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+10.0014 s]
Raw data (loadavg): 0.93 0.95 0.90 2/54 16207
Raw data (stat): 16207 (pb2sat) R 16206 3132 3131 0 -1 0 26393 0 0 0 940 58 0 0 25 0 1 0 793047741 89014272 15305 4294967295 134512640 135726644 3221224576 3216726000 134780465 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21732 15305 300 300 0 21432 0
vsize: 86928
[startup+20.0016 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 16207
Raw data (stat): 16207 (pb2sat) R 16206 3132 3131 0 -1 0 55178 0 0 0 1881 117 0 0 25 0 1 0 793047741 175140864 33130 4294967295 134512640 135726644 3221224576 3217066236 134604368 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 42759 33130 300 300 0 42459 0
vsize: 171036
[startup+30.0024 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 16207
Raw data (stat): 16207 (pb2sat) R 16206 3132 3131 0 -1 0 96810 0 0 0 2796 203 0 0 25 0 1 0 793047741 303161344 53080 4294967295 134512640 135726644 3221224576 3217015664 134767136 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 74014 53081 300 300 0 73714 0
vsize: 296056
[startup+40.0025 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 16207
Raw data (stat): 16207 (pb2sat) R 16206 3132 3131 0 -1 0 112487 0 0 0 3760 238 0 0 25 0 1 0 793047741 347529216 68524 4294967295 134512640 135726644 3221224576 3218047032 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 84846 68524 300 300 0 84546 0
vsize: 339384
[startup+50.003 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 16207
Raw data (stat): 16207 (pb2sat) R 16206 3132 3131 0 -1 0 134270 0 0 0 4709 290 0 0 25 0 1 0 793047741 521498624 90026 4294967295 134512640 135726644 3221224576 3217208960 134771640 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 127352 90029 300 300 0 127052 0
vsize: 509276
[startup+60.0027 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 16207
Raw data (stat): 16207 (pb2sat) R 16206 3132 3131 0 -1 0 194504 0 0 0 5587 413 0 0 25 0 1 0 793047741 598974464 107178 4294967295 134512640 135726644 3221224576 3217704552 134784093 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 146234 107178 300 300 0 145934 0
vsize: 584936
[startup+70.0029 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 16207
Raw data (stat): 16207 (pb2sat) R 16206 3132 3131 0 -1 0 206748 0 0 0 6559 440 0 0 25 0 1 0 793047741 632528896 119201 4294967295 134512640 135726644 3221224576 3217709352 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154426 119201 300 300 0 154126 0
vsize: 617704
[startup+80.0033 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 16207
Raw data (stat): 16207 (pb2sat) R 16206 3132 3131 0 -1 0 226441 0 0 0 7517 483 0 0 25 0 1 0 793047741 657940480 138651 4294967295 134512640 135726644 3221224576 3217519280 134783176 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 160630 138653 300 300 0 160330 0
vsize: 642520
[startup+90.0035 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 16207
Raw data (stat): 16207 (pb2sat) R 16206 3132 3131 0 -1 0 243298 0 0 0 8479 521 0 0 25 0 1 0 793047741 732602368 155312 4294967295 134512640 135726644 3221224576 3217672192 134784502 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 178858 155312 300 300 0 178558 0
vsize: 715432
[startup+100.004 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 16207
Raw data (stat): 16207 (pb2sat) R 16206 3132 3131 0 -1 0 264024 0 0 0 9429 569 0 0 25 0 1 0 793047741 762744832 175796 4294967295 134512640 135726644 3221224576 3217870864 134767231 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 186217 175796 300 300 0 185917 0
vsize: 744868
[startup+110.033 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 16207
Raw data (stat): 16207 (pb2sat) R 16206 3132 3131 0 -1 0 264995 0 0 0 10407 593 0 0 25 0 1 0 793047741 269803520 65457 4294967295 134512640 135726644 3221224576 3221222916 135341057 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 65870 65457 300 300 0 65570 0
vsize: 263480
[startup+110.18 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 16207
Raw data (stat): 16207 (pb2sat) R 16206 3132 3131 0 -1 0 264995 0 0 0 10407 593 0 0 25 0 1 0 793047741 269803520 65457 4294967295 134512640 135726644 3221224576 3221222916 135341057 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 65870 65457 300 300 0 65570 0
vsize: 0

Child status: 1
Real time (s): 110.179
CPU time (s): 110.154
CPU user time (s): 104.074
CPU system time (s): 6.08008
CPU usage (%): 99.9772
Max. virtual memory (Kb): 744868
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####