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-mod008.opb
MD5SUM581d778a36086562107993896110e0a2
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 307
Optimality of the best value was proved NO
Number of terms in the objective function 319
Biggest coefficient in the objective function 87
Number of bits for the biggest coefficient in the objective function 7
Sum of the numbers in the objective function 23554
Number of bits of the sum of numbers in the objective function 15
Biggest number in a constraint 22000
Number of bits of the biggest number in a constraint 15
Biggest sum of numbers in a constraint 1027256
Number of bits of the biggest sum of numbers20
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.01784
Number of variables319
Total number of constraints325
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)319
Number of constraints which are nor clauses,nor cardinality constraints6
Minimum length of a constraint1
Maximum length of a constraint231

Trace number 42530 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-06-16 10:01:00 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25749 boxname=wulflinc5 idbench=1049 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  581d778a36086562107993896110e0a2  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-mod008.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-mod008.opb
IDLAUNCH: 25749
/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:        771412 kB
Buffers:         27732 kB
Cached:         212572 kB
SwapCached:        688 kB
Active:          28244 kB
Inactive:       214220 kB
HighTotal:      131008 kB
HighFree:        41608 kB
LowTotal:       903652 kB
LowFree:        729804 kB
SwapTotal:     2097136 kB
SwapFree:      2095520 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           5156 kB
Slab:            15128 kB
Committed_AS:    63712 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 10:02:57 (client local time) WITH STATUS 1 IN 116.291 SECONDS
stats: 25749 7 116.291 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): 0.94 0.95 0.91 2/54 12286
Raw data (stat): 12286 (runsolver) R 12285 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 969879974 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+10.0007 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 12286
Raw data (stat): 12286 (pb2sat-v2) R 12285 7266 7265 0 -1 0 29292 0 0 0 934 65 0 0 25 0 1 0 969879974 88887296 18189 4294967295 134512640 135730672 3221224576 3221121216 134788741 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21701 18190 301 301 0 21400 0
vsize: 86804
[startup+20.0005 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 12288
Raw data (stat): 12286 (pb2sat-v2) R 12285 7266 7265 0 -1 0 56921 0 0 0 1882 116 0 0 25 0 1 0 969879974 174178304 34615 4294967295 134512640 135730672 3221224576 3221130800 134786278 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 42524 34615 301 301 0 42223 0
vsize: 170096
[startup+30.0015 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 12288
Raw data (stat): 12286 (pb2sat-v2) R 12285 7266 7265 0 -1 0 96627 0 0 0 2804 195 0 0 25 0 1 0 969879974 298643456 52142 4294967295 134512640 135730672 3221224576 3221116464 134770759 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 72911 52142 301 301 0 72610 0
vsize: 291644
[startup+40.0009 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 12288
Raw data (stat): 12286 (pb2sat-v2) R 12285 7266 7265 0 -1 0 110671 0 0 0 3779 220 0 0 25 0 1 0 969879974 341938176 65974 4294967295 134512640 135730672 3221224576 3221147968 134786908 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 83481 65974 301 301 0 83180 0
vsize: 333924
[startup+50.0021 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 12288
Raw data (stat): 12286 (pb2sat-v2) R 12285 7266 7265 0 -1 0 130293 0 0 0 4744 255 0 0 25 0 1 0 969879974 370765824 85365 4294967295 134512640 135730672 3221224576 3221154976 134770712 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 90519 85365 301 301 0 90218 0
vsize: 362076
[startup+60.0018 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 12288
Raw data (stat): 12286 (pb2sat-v2) R 12285 7266 7265 0 -1 0 190382 0 0 0 5628 372 0 0 25 0 1 0 969879974 594923520 101339 4294967295 134512640 135730672 3221224576 3221148016 134546338 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145245 101339 301 301 0 144944 0
vsize: 580980
[startup+70.0012 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 12288
Raw data (stat): 12286 (pb2sat-v2) R 12285 7266 7265 0 -1 0 200534 0 0 0 6608 392 0 0 25 0 1 0 969879974 628477952 111302 4294967295 134512640 135730672 3221224576 3221149836 134608033 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153437 111302 301 301 0 153136 0
vsize: 613748
[startup+80.002 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 12288
Raw data (stat): 12286 (pb2sat-v2) R 12285 7266 7265 0 -1 0 215259 0 0 0 7583 417 0 0 25 0 1 0 969879974 640376832 125810 4294967295 134512640 135730672 3221224576 3221163792 134770759 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 156342 125811 301 301 0 156041 0
vsize: 625368
[startup+90.0021 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 12288
Raw data (stat): 12286 (pb2sat-v2) R 12285 7266 7265 0 -1 0 234153 0 0 0 8549 451 0 0 25 0 1 0 969879974 668659712 144478 4294967295 134512640 135730672 3221224576 3221166200 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 163247 144478 301 301 0 162946 0
vsize: 652988
[startup+100.002 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 12288
Raw data (stat): 12286 (pb2sat-v2) R 12285 7266 7265 0 -1 0 249198 0 0 0 9521 479 0 0 25 0 1 0 969879974 741502976 159345 4294967295 134512640 135730672 3221224576 3221188252 135109339 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 181031 159346 301 301 0 180730 0
vsize: 724124
[startup+110.004 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 12288
Raw data (stat): 12286 (pb2sat-v2) R 12285 7266 7265 0 -1 0 261246 0 0 0 10482 518 0 0 25 0 1 0 969879974 400138240 97163 4294967295 134512640 135730672 3221224576 3221222764 135281100 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97690 97163 301 301 0 97389 0
vsize: 390760
[startup+116.288 s]
Raw data (loadavg): 0.99 0.96 0.91 1/53 12288
Raw data (stat): 12286 (pb2sat-v2) R 12285 7266 7265 0 -1 0 261246 0 0 0 10482 518 0 0 25 0 1 0 969879974 400138240 97163 4294967295 134512640 135730672 3221224576 3221222764 135281100 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97690 97163 301 301 0 97389 0
vsize: 0

Child status: 1
Real time (s): 116.288
CPU time (s): 116.291
CPU user time (s): 110.892
CPU system time (s): 5.39918
CPU usage (%): 100.003
Max. virtual memory (Kb): 724124
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####