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/plato.asu.edu/pub/fctp/normalized-mps-v2-13-7-ran13x13.opb
MD5SUM688d61d0de54e028c8c4910e094a132c
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 893343
Optimality of the best value was proved NO
Number of terms in the objective function 3549
Biggest coefficient in the objective function 5242880
Number of bits for the biggest coefficient in the objective function 23
Sum of the numbers in the objective function 949933178
Number of bits of the sum of numbers in the objective function 30
Biggest number in a constraint 5242880
Number of bits of the biggest number in a constraint 23
Biggest sum of numbers in a constraint 949933178
Number of bits of the biggest sum of numbers30
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1175.05
Number of variables3549
Total number of constraints195
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 constraints195
Minimum length of a constraint21
Maximum length of a constraint260

Trace number 35707 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc21 THE 2005-05-28 13:53:54 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25012 boxname=wulflinc21 idbench=1484 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  688d61d0de54e028c8c4910e094a132c  /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-13-7-ran13x13.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-13-7-ran13x13.opb
IDLAUNCH: 25012
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.161
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	: 3
cpu MHz		: 451.161
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:        790928 kB
Buffers:         35220 kB
Cached:         185300 kB
SwapCached:        956 kB
Active:          56356 kB
Inactive:       166316 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        790676 kB
SwapTotal:     2097892 kB
SwapFree:      2096012 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5136 kB
Slab:            15356 kB
Committed_AS:    63904 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 13:55:35 (client local time) WITH STATUS 1 IN 100.528 SECONDS
stats: 25012 7 100.528 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 2/55 15859
Raw data (stat): 15859 (runsolver) R 15858 32363 32362 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 742582272 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+10.0001 s]
Raw data (loadavg): 0.93 0.95 0.90 2/55 15859
Raw data (stat): 15859 (pb2sat) R 15858 32363 32362 0 -1 0 30621 0 0 0 934 65 0 0 25 0 1 0 742582272 91525120 19477 4294967295 134512640 135726644 3221224576 3219862064 134767049 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 22345 19478 300 300 0 22045 0
vsize: 89380
[startup+20.0001 s]
Raw data (loadavg): 0.94 0.96 0.91 2/55 15859
Raw data (stat): 15859 (pb2sat) R 15858 32363 32362 0 -1 0 60565 0 0 0 1869 130 0 0 25 0 1 0 742582272 179240960 38192 4294967295 134512640 135726644 3221224576 3219973832 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43760 38193 300 300 0 43460 0
vsize: 175040
[startup+30.0006 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 15859
Raw data (stat): 15859 (pb2sat) R 15858 32363 32362 0 -1 0 100441 0 0 0 2786 213 0 0 25 0 1 0 742582272 334262272 55878 4294967295 134512640 135726644 3221224576 3220178452 134739689 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 81607 55878 300 300 0 81307 0
vsize: 326428
[startup+40.0004 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 15859
Raw data (stat): 15859 (pb2sat) R 15858 32363 32362 0 -1 0 119912 0 0 0 3745 254 0 0 25 0 1 0 742582272 353861632 75090 4294967295 134512640 135726644 3221224576 3220616952 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 86392 75091 300 300 0 86092 0
vsize: 345568
[startup+50.0011 s]
Raw data (loadavg): 0.96 0.96 0.91 2/55 15859
Raw data (stat): 15859 (pb2sat) R 15858 32363 32362 0 -1 0 163729 0 0 0 4664 335 0 0 25 0 1 0 742582272 493559808 100321 4294967295 134512640 135726644 3221224576 3220074948 135277538 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 120498 100321 300 300 0 120198 0
vsize: 481992
[startup+60.0008 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 15859
Raw data (stat): 15859 (pb2sat) R 15858 32363 32362 0 -1 0 199710 0 0 0 5590 410 0 0 25 0 1 0 742582272 631971840 110518 4294967295 134512640 135726644 3221224576 3220148864 134767079 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154290 110518 300 300 0 153990 0
vsize: 617160
[startup+70.0005 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 15859
Raw data (stat): 15859 (pb2sat) R 15858 32363 32362 0 -1 0 215512 0 0 0 6557 443 0 0 25 0 1 0 742582272 636973056 126059 4294967295 134512640 135726644 3221224576 3220193032 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 155511 126059 300 300 0 155211 0
vsize: 622044
[startup+80.0016 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 15859
Raw data (stat): 15859 (pb2sat) R 15858 32363 32362 0 -1 0 237337 0 0 0 7510 490 0 0 25 0 1 0 742582272 668196864 147632 4294967295 134512640 135726644 3221224576 3220520928 134554579 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 163134 147633 300 300 0 162834 0
vsize: 652536
[startup+90.001 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 15859
Raw data (stat): 15859 (pb2sat) R 15858 32363 32362 0 -1 0 255030 0 0 0 8472 528 0 0 25 0 1 0 742582272 743804928 165121 4294967295 134512640 135726644 3221224576 3220637352 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 181593 165121 300 300 0 181293 0
vsize: 726372
[startup+100.002 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 15859
Raw data (stat): 15859 (pb2sat) R 15858 32363 32362 0 -1 0 265974 0 0 0 9431 569 0 0 25 0 1 0 742582272 399675392 97153 4294967295 134512640 135726644 3221224576 3221222928 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97577 97153 300 300 0 97277 0
vsize: 390308
[startup+100.522 s]
Raw data (loadavg): 0.98 0.96 0.91 1/54 15859
Raw data (stat): 15859 (pb2sat) R 15858 32363 32362 0 -1 0 265974 0 0 0 9431 569 0 0 25 0 1 0 742582272 399675392 97153 4294967295 134512640 135726644 3221224576 3221222928 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97577 97153 300 300 0 97277 0
vsize: 0

Child status: 1
Real time (s): 100.522
CPU time (s): 100.528
CPU user time (s): 94.6226
CPU system time (s): 5.9051
CPU usage (%): 100.006
Max. virtual memory (Kb): 726372
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####