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/miplib/normalized-mps-v2-20-10-p0291.opb
MD5SUM1d9168a9335e29df835d07b0bdf2adea
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 10447498
Optimality of the best value was proved NO
Number of terms in the objective function 289
Biggest coefficient in the objective function 80000000
Number of bits for the biggest coefficient in the objective function 27
Sum of the numbers in the objective function 686518451
Number of bits of the sum of numbers in the objective function 30
Biggest number in a constraint 80000000
Number of bits of the biggest number in a constraint 27
Biggest sum of numbers in a constraint 686518451
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 benchmark0.335948
Number of variables291
Total number of constraints543
Number of constraints which are clauses189
Number of constraints which are cardinality constraints (but not clauses)295
Number of constraints which are nor clauses,nor cardinality constraints59
Minimum length of a constraint1
Maximum length of a constraint53

Trace number 42415 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-06-16 07:03:13 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25635 boxname=wulflinc2 idbench=935 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  1d9168a9335e29df835d07b0bdf2adea  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-p0291.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-p0291.opb
IDLAUNCH: 25635
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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		: 451.191
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:        707956 kB
Buffers:         34904 kB
Cached:         266512 kB
SwapCached:       4448 kB
Active:          61312 kB
Inactive:       245216 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        707704 kB
SwapTotal:     2097136 kB
SwapFree:      2091696 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5056 kB
Slab:            14524 kB
Committed_AS:    71892 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 07:05:13 (client local time) WITH STATUS 1 IN 120.16 SECONDS
stats: 25635 7 120.16 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: 563772543
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): 0.85 0.98 0.94 1/54 6769
Raw data (stat): 6769 (runsolver) R 6768 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968817041 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+10.0007 s]
Raw data (loadavg): 0.87 0.98 0.94 2/54 6769
Raw data (stat): 6769 (pb2sat-v2) R 6768 31399 31398 0 -1 0 28318 0 0 0 944 55 0 0 25 0 1 0 968817041 87908352 17222 4294967295 134512640 135730672 3221224576 3221086288 134546483 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21462 17222 301 301 0 21161 0
vsize: 85848
[startup+20.0012 s]
Raw data (loadavg): 0.89 0.98 0.94 2/54 6769
Raw data (stat): 6769 (pb2sat-v2) R 6768 31399 31398 0 -1 0 55389 0 0 0 1892 106 0 0 25 0 1 0 968817041 172417024 33092 4294967295 134512640 135730672 3221224576 3221098316 134608033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42094 33092 301 301 0 41793 0
vsize: 168376
[startup+30.002 s]
Raw data (loadavg): 0.91 0.98 0.94 2/54 6769
Raw data (stat): 6769 (pb2sat-v2) R 6768 31399 31398 0 -1 0 93265 0 0 0 2818 180 0 0 25 0 1 0 968817041 348045312 61083 4294967295 134512640 135730672 3221224576 3221100336 134788521 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 84972 61088 301 301 0 84671 0
vsize: 339888
[startup+40.0022 s]
Raw data (loadavg): 0.92 0.98 0.94 2/54 6769
Raw data (stat): 6769 (pb2sat-v2) R 6768 31399 31398 0 -1 0 107944 0 0 0 3790 209 0 0 25 0 1 0 968817041 338563072 63271 4294967295 134512640 135730672 3221224576 3221096960 134546496 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 82657 63271 301 301 0 82356 0
vsize: 330628
[startup+50.0023 s]
Raw data (loadavg): 0.93 0.98 0.94 2/54 6769
Raw data (stat): 6769 (pb2sat-v2) R 6768 31399 31398 0 -1 0 127284 0 0 0 4753 245 0 0 25 0 1 0 968817041 367529984 82382 4294967295 134512640 135730672 3221224576 3221103456 134770870 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 89729 82383 301 301 0 89428 0
vsize: 358916
[startup+60.0031 s]
Raw data (loadavg): 0.94 0.98 0.94 2/54 6769
Raw data (stat): 6769 (pb2sat-v2) R 6768 31399 31398 0 -1 0 164968 0 0 0 5685 313 0 0 25 0 1 0 968817041 493608960 100503 4294967295 134512640 135730672 3221224576 3221101688 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 120510 100503 301 301 0 120209 0
vsize: 482040
[startup+70.0038 s]
Raw data (loadavg): 0.95 0.98 0.94 2/54 6769
Raw data (stat): 6769 (pb2sat-v2) R 6768 31399 31398 0 -1 0 198950 0 0 0 6613 386 0 0 25 0 1 0 968817041 627826688 109742 4294967295 134512640 135730672 3221224576 3221093120 134783984 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 153278 109742 301 301 0 152977 0
vsize: 613112
[startup+80.0044 s]
Raw data (loadavg): 0.96 0.98 0.94 2/54 6769
Raw data (stat): 6769 (pb2sat-v2) R 6768 31399 31398 0 -1 0 211582 0 0 0 7588 411 0 0 25 0 1 0 968817041 635564032 122174 4294967295 134512640 135730672 3221224576 3221114592 134546483 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 155167 122175 301 301 0 154866 0
vsize: 620668
[startup+90.0051 s]
Raw data (loadavg): 0.96 0.98 0.94 2/54 6769
Raw data (stat): 6769 (pb2sat-v2) R 6768 31399 31398 0 -1 0 229585 0 0 0 8557 443 0 0 25 0 1 0 968817041 661651456 139970 4294967295 134512640 135730672 3221224576 3221112272 134546341 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 161536 139970 301 301 0 161235 0
vsize: 646144
[startup+100.004 s]
Raw data (loadavg): 0.97 0.98 0.94 2/54 6769
Raw data (stat): 6769 (pb2sat-v2) R 6768 31399 31398 0 -1 0 248030 0 0 0 9521 479 0 0 25 0 1 0 968817041 689020928 158200 4294967295 134512640 135730672 3221224576 3221102064 134770673 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 168218 158200 301 301 0 167917 0
vsize: 672872
[startup+110.007 s]
Raw data (loadavg): 0.97 0.98 0.94 2/54 6769
Raw data (stat): 6769 (pb2sat-v2) R 6768 31399 31398 0 -1 0 262533 0 0 0 10492 508 0 0 25 0 1 0 968817041 761774080 172531 4294967295 134512640 135730672 3221224576 3221222764 134606870 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 185980 172531 301 301 0 185679 0
vsize: 743920
[startup+120.018 s]
Raw data (loadavg): 0.98 0.98 0.94 2/54 6769
Raw data (stat): 6769 (pb2sat-v2) R 6768 31399 31398 0 -1 0 262534 0 0 0 11471 530 0 0 25 0 1 0 968817041 258441216 62596 4294967295 134512640 135730672 3221224576 3221222916 135344689 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 0 0 0 0 0 0 0
vsize: 252384
[startup+120.161 s]
Raw data (loadavg): 0.98 0.98 0.94 1/53 6769
Raw data (stat): 6769 (pb2sat-v2) R 6768 31399 31398 0 -1 0 262534 0 0 0 11471 530 0 0 25 0 1 0 968817041 258441216 62596 4294967295 134512640 135730672 3221224576 3221222916 135344689 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 0 0 0 0 0 0 0
vsize: 0

Child status: 1
Real time (s): 120.161
CPU time (s): 120.16
CPU user time (s): 114.718
CPU system time (s): 5.44217
CPU usage (%): 99.9992
Max. virtual memory (Kb): 743920
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####