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-pp08a.opb
MD5SUM962e64054cef66ff1ace4918a032c24a
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1983976
Optimality of the best value was proved NO
Number of terms in the objective function 2304
Biggest coefficient in the objective function 1048576
Number of bits for the biggest coefficient in the objective function 21
Sum of the numbers in the objective function 178464600
Number of bits of the sum of numbers in the objective function 28
Biggest number in a constraint 1048576
Number of bits of the biggest number in a constraint 21
Biggest sum of numbers in a constraint 178464600
Number of bits of the biggest sum of numbers28
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1189.01
Number of variables3584
Total number of constraints200
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)64
Number of constraints which are nor clauses,nor cardinality constraints136
Minimum length of a constraint1
Maximum length of a constraint160

Trace number 35598 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc12 THE 2005-05-28 13:28:43 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24907 boxname=wulflinc12 idbench=1379 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  962e64054cef66ff1ace4918a032c24a  /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-13-7-pp08a.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-13-7-pp08a.opb
IDLAUNCH: 24907
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.091
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		: 451.091
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:        743812 kB
Buffers:         36096 kB
Cached:         219040 kB
SwapCached:        340 kB
Active:          21476 kB
Inactive:       245440 kB
HighTotal:      131008 kB
HighFree:        86800 kB
LowTotal:       903652 kB
LowFree:        657012 kB
SwapTotal:     2097136 kB
SwapFree:      2096008 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5380 kB
Slab:            18216 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 13:30:24 (client local time) WITH STATUS 1 IN 99.5289 SECONDS
stats: 24907 7 99.5289 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 0.93 0.90 1/54 13206
Raw data (stat): 13206 (runsolver) D 13205 32284 32283 0 -1 64 8 0 0 0 0 0 0 0 18 0 1 0 806937403 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 3225161850 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0006 s]
Raw data (loadavg): 0.92 0.93 0.91 2/54 13206
Raw data (stat): 13206 (pb2sat) R 13205 32284 32283 0 -1 0 31022 0 0 0 932 64 0 0 25 0 1 0 806937403 91779072 20065 4294967295 134512640 135726644 3221224576 3220764552 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22407 20065 300 300 0 22107 0
vsize: 89628
[startup+20.0018 s]
Raw data (loadavg): 0.93 0.93 0.91 2/54 13206
Raw data (stat): 13206 (pb2sat) R 13205 32284 32283 0 -1 0 61206 0 0 0 1869 127 0 0 25 0 1 0 806937403 180142080 39271 4294967295 134512640 135726644 3221224576 3220995832 135281332 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43980 39271 300 300 0 43680 0
vsize: 175920
[startup+30.002 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 13206
Raw data (stat): 13206 (pb2sat) R 13205 32284 32283 0 -1 0 100916 0 0 0 2792 204 0 0 25 0 1 0 806937403 333811712 56787 4294967295 134512640 135726644 3221224576 3220793032 135280655 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 81497 56787 300 300 0 81197 0
vsize: 325988
[startup+40.0025 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 13206
Raw data (stat): 13206 (pb2sat) R 13205 32284 32283 0 -1 0 121079 0 0 0 3752 244 0 0 25 0 1 0 806937403 355573760 76689 4294967295 134512640 135726644 3221224576 3220950232 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 86810 76689 300 300 0 86510 0
vsize: 347240
[startup+50.0094 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 13206
Raw data (stat): 13206 (pb2sat) R 13205 32284 32283 0 -1 0 169939 0 0 0 4659 338 0 0 25 0 1 0 806937403 698634240 105948 4294967295 134512640 135726644 3221224576 3220888992 134784885 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 170565 105952 300 300 0 170265 0
vsize: 682260
[startup+60.0092 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 13206
Raw data (stat): 13206 (pb2sat) R 13205 32284 32283 0 -1 0 200682 0 0 0 5594 403 0 0 25 0 1 0 806937403 631521280 111917 4294967295 134512640 135726644 3221224576 3220939308 134604400 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154180 111918 300 300 0 153880 0
vsize: 616720
[startup+70.0174 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 13206
Raw data (stat): 13206 (pb2sat) R 13205 32284 32283 0 -1 0 217165 0 0 0 6561 438 0 0 25 0 1 0 806937403 638955520 128142 4294967295 134512640 135726644 3221224576 3220965352 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 155995 128143 300 300 0 155695 0
vsize: 623980
[startup+80.0179 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 13206
Raw data (stat): 13206 (pb2sat) R 13205 32284 32283 0 -1 0 239054 0 0 0 7514 484 0 0 25 0 1 0 806937403 669908992 149779 4294967295 134512640 135726644 3221224576 3220907692 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 163552 149779 300 300 0 163252 0
vsize: 654208
[startup+90.0177 s]
Raw data (loadavg): 0.98 0.94 0.91 2/54 13206
Raw data (stat): 13206 (pb2sat) R 13205 32284 32283 0 -1 0 256860 0 0 0 8479 520 0 0 25 0 1 0 806937403 745517056 167381 4294967295 134512640 135726644 3221224576 3220997216 135279114 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 182011 167382 300 300 0 181711 0
vsize: 728044
[startup+99.757 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 13206
Raw data (stat): 13206 (pb2sat) R 13205 32284 32283 0 -1 0 256860 0 0 0 8479 520 0 0 25 0 1 0 806937403 745517056 167381 4294967295 134512640 135726644 3221224576 3220997216 135279114 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 182011 167382 300 300 0 181711 0
vsize: 0

Child status: 1
Real time (s): 99.7339
CPU time (s): 99.5289
CPU user time (s): 93.7957
CPU system time (s): 5.73313
CPU usage (%): 99.7944
Max. virtual memory (Kb): 728044
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####