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/miplib/normalized-mps-v2-13-7-p0282.opb
MD5SUMa733e9fa1e4e3ac90baf85249f7c3e9a
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 258411
Optimality of the best value was proved NO
Number of terms in the objective function 282
Biggest coefficient in the objective function 160646
Number of bits for the biggest coefficient in the objective function 18
Sum of the numbers in the objective function 1302615
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 160646
Number of bits of the biggest number in a constraint 18
Biggest sum of numbers in a constraint 1302615
Number of bits of the biggest sum of numbers21
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.02084
Number of variables282
Total number of constraints523
Number of constraints which are clauses177
Number of constraints which are cardinality constraints (but not clauses)282
Number of constraints which are nor clauses,nor cardinality constraints64
Minimum length of a constraint1
Maximum length of a constraint57

Trace number 42797 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 15:16:01 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=26018 boxname=wulflinc4 idbench=1318 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  a733e9fa1e4e3ac90baf85249f7c3e9a  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-p0282.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-p0282.opb
IDLAUNCH: 26018
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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		: 451.169
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:        782088 kB
Buffers:          9504 kB
Cached:         221472 kB
SwapCached:        904 kB
Active:          26952 kB
Inactive:       206120 kB
HighTotal:      131008 kB
HighFree:        18284 kB
LowTotal:       903652 kB
LowFree:        763804 kB
SwapTotal:     2097136 kB
SwapFree:      2095236 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            13784 kB
Committed_AS:    71908 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 15:17:51 (client local time) WITH STATUS 1 IN 110.224 SECONDS
stats: 26018 7 110.224 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: 746317
c small objective detected

	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): 0.90 0.93 0.90 1/54 28883
Raw data (stat): 28883 (runsolver) R 28882 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 971760073 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+10.0005 s]
Raw data (loadavg): 0.91 0.94 0.90 2/54 28883
Raw data (stat): 28883 (pb2sat-v2) R 28882 21152 21151 0 -1 0 28839 0 0 0 937 61 0 0 25 0 1 0 971760073 87732224 17875 4294967295 134512640 135730672 3221224576 3221126280 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21419 17875 301 301 0 21118 0
vsize: 85676
[startup+20.0006 s]
Raw data (loadavg): 0.92 0.94 0.91 2/54 28883
Raw data (stat): 28883 (pb2sat-v2) R 28882 21152 21151 0 -1 0 57255 0 0 0 1881 117 0 0 25 0 1 0 971760073 173694976 35078 4294967295 134512640 135730672 3221224576 3221171728 134611285 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42406 35080 301 301 0 42105 0
vsize: 169624
[startup+30.0002 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 28883
Raw data (stat): 28883 (pb2sat-v2) R 28882 21152 21151 0 -1 0 97331 0 0 0 2802 196 0 0 25 0 1 0 971760073 297463808 52968 4294967295 134512640 135730672 3221224576 3221183216 134786302 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 72623 52968 301 301 0 72322 0
vsize: 290492
[startup+40 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 28883
Raw data (stat): 28883 (pb2sat-v2) R 28882 21152 21151 0 -1 0 112613 0 0 0 3777 222 0 0 25 0 1 0 971760073 343187456 68031 4294967295 134512640 135730672 3221224576 3221143776 134786278 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 83786 68031 301 301 0 83485 0
vsize: 335144
[startup+50.0003 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 28883
Raw data (stat): 28883 (pb2sat-v2) R 28882 21152 21151 0 -1 0 136449 0 0 0 4732 267 0 0 25 0 1 0 971760073 520945664 91493 4294967295 134512640 135730672 3221224576 3221190320 134775558 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 127184 91496 301 301 0 126883 0
vsize: 508736
[startup+60.0011 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 28883
Raw data (stat): 28883 (pb2sat-v2) R 28882 21152 21151 0 -1 0 193168 0 0 0 5622 377 0 0 25 0 1 0 971760073 595046400 104231 4294967295 134512640 135730672 3221224576 3221171752 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 145275 104232 301 301 0 144974 0
vsize: 581100
[startup+70.0016 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 28883
Raw data (stat): 28883 (pb2sat-v2) R 28882 21152 21151 0 -1 0 204094 0 0 0 6601 399 0 0 25 0 1 0 971760073 628600832 114963 4294967295 134512640 135730672 3221224576 3221182300 134608033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 153467 114963 301 301 0 153166 0
vsize: 613868
[startup+80.0015 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 28883
Raw data (stat): 28883 (pb2sat-v2) R 28882 21152 21151 0 -1 0 220520 0 0 0 7573 427 0 0 25 0 1 0 971760073 644280320 131167 4294967295 134512640 135730672 3221224576 3221181496 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 157295 131167 301 301 0 156994 0
vsize: 629180
[startup+90.0014 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 28883
Raw data (stat): 28883 (pb2sat-v2) R 28882 21152 21151 0 -1 0 239988 0 0 0 8531 468 0 0 25 0 1 0 971760073 672124928 150410 4294967295 134512640 135730672 3221224576 3221189384 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 164093 150411 301 301 0 163792 0
vsize: 656372
[startup+100.002 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 28883
Raw data (stat): 28883 (pb2sat-v2) R 28882 21152 21151 0 -1 0 255510 0 0 0 9503 497 0 0 25 0 1 0 971760073 744353792 165753 4294967295 134512640 135730672 3221224576 3221163276 134607999 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 181760 165755 301 301 0 181459 0
vsize: 726908
[startup+110.002 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 28883
Raw data (stat): 28883 (pb2sat-v2) R 28882 21152 21151 0 -1 0 264796 0 0 0 10470 530 0 0 25 0 1 0 971760073 397725696 96681 4294967295 134512640 135730672 3221224576 3221222928 135284078 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97101 96681 301 301 0 96800 0
vsize: 388404
[startup+110.221 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 28883
Raw data (stat): 28883 (pb2sat-v2) R 28882 21152 21151 0 -1 0 264796 0 0 0 10470 530 0 0 25 0 1 0 971760073 397725696 96681 4294967295 134512640 135730672 3221224576 3221222928 135284078 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97101 96681 301 301 0 96800 0
vsize: 0

Child status: 1
Real time (s): 110.22
CPU time (s): 110.224
CPU user time (s): 104.71
CPU system time (s): 5.51416
CPU usage (%): 100.003
Max. virtual memory (Kb): 726908
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####