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/miplib2003/normalized-mps-v2-20-10-nsrand-ipx.opb
MD5SUM6b39a5ca45e18a6e9e3dc91f7594e22c
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2147483575
Optimality of the best value was proved NO
Number of terms in the objective function 31
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 2147483647
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 1073741824
Number of bits of the biggest number in a constraint 31
Biggest sum of numbers in a constraint 26715880447
Number of bits of the biggest sum of numbers35
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1224.15
Number of variables6651
Total number of constraints7355
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)6951
Number of constraints which are nor clauses,nor cardinality constraints404
Minimum length of a constraint1
Maximum length of a constraint6651

Trace number 42470 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-06-16 08:23:45 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25689 boxname=wulflinc5 idbench=989 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  6b39a5ca45e18a6e9e3dc91f7594e22c  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-nsrand-ipx.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-nsrand-ipx.opb
IDLAUNCH: 25689
/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:        700704 kB
Buffers:         34196 kB
Cached:         276408 kB
SwapCached:        700 kB
Active:          67936 kB
Inactive:       244836 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        700452 kB
SwapTotal:     2097136 kB
SwapFree:      2095508 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5156 kB
Slab:            15528 kB
Committed_AS:    63704 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 08:25:40 (client local time) WITH STATUS 1 IN 114.981 SECONDS
stats: 25689 7 114.981 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): 0.82 0.92 0.93 2/54 11064
Raw data (stat): 11064 (runsolver) R 11063 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 969296360 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+10.0002 s]
Raw data (loadavg): 0.85 0.92 0.93 2/54 11064
Raw data (stat): 11064 (pb2sat-v2) R 11063 7266 7265 0 -1 0 25949 0 0 0 942 56 0 0 25 0 1 0 969296360 78970880 14852 4294967295 134512640 135730672 3221224576 3218386216 135284298 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 19280 14852 301 301 0 18979 0
vsize: 77120
[startup+19.9999 s]
Raw data (loadavg): 0.87 0.92 0.93 2/54 11064
Raw data (stat): 11064 (pb2sat-v2) R 11063 7266 7265 0 -1 0 53457 0 0 0 1882 116 0 0 25 0 1 0 969296360 172642304 31154 4294967295 134512640 135730672 3221224576 3218639496 135284037 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42149 31154 301 301 0 41848 0
vsize: 168596
[startup+30.0006 s]
Raw data (loadavg): 0.89 0.92 0.93 2/54 11064
Raw data (stat): 11064 (pb2sat-v2) R 11063 7266 7265 0 -1 0 82771 0 0 0 2827 171 0 0 25 0 1 0 969296360 249589760 50551 4294967295 134512640 135730672 3221224576 3219187580 134608033 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 60935 50551 301 301 0 60634 0
vsize: 243740
[startup+40.0003 s]
Raw data (loadavg): 0.91 0.93 0.93 2/54 11064
Raw data (stat): 11064 (pb2sat-v2) R 11063 7266 7265 0 -1 0 108708 0 0 0 3769 229 0 0 25 0 1 0 969296360 342937600 63995 4294967295 134512640 135730672 3221224576 3218228092 135291075 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 83725 63995 301 301 0 83424 0
vsize: 334900
[startup+50.001 s]
Raw data (loadavg): 0.92 0.93 0.93 2/54 11064
Raw data (stat): 11064 (pb2sat-v2) R 11063 7266 7265 0 -1 0 128387 0 0 0 4731 268 0 0 25 0 1 0 969296360 371322880 83450 4294967295 134512640 135730672 3221224576 3218501548 135284213 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 90655 83452 301 301 0 90354 0
vsize: 362620
[startup+60.0008 s]
Raw data (loadavg): 0.93 0.93 0.93 2/54 11064
Raw data (stat): 11064 (pb2sat-v2) R 11063 7266 7265 0 -1 0 178875 0 0 0 5634 364 0 0 25 0 1 0 969296360 698433536 114371 4294967295 134512640 135730672 3221224576 3219107472 134788521 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 170516 114375 301 301 0 170215 0
vsize: 682064
[startup+70.0006 s]
Raw data (loadavg): 0.94 0.93 0.93 2/54 11064
Raw data (stat): 11064 (pb2sat-v2) R 11063 7266 7265 0 -1 0 201349 0 0 0 6586 413 0 0 25 0 1 0 969296360 631320576 112081 4294967295 134512640 135730672 3221224576 3220178792 135284287 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154131 112082 301 301 0 153830 0
vsize: 616524
[startup+80.0034 s]
Raw data (loadavg): 0.95 0.93 0.93 2/54 11064
Raw data (stat): 11064 (pb2sat-v2) R 11063 7266 7265 0 -1 0 217959 0 0 0 7549 450 0 0 25 0 1 0 969296360 646459392 128459 4294967295 134512640 135730672 3221224576 3219689208 135284216 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 157827 128460 301 301 0 157526 0
vsize: 631308
[startup+90.0031 s]
Raw data (loadavg): 0.96 0.94 0.93 2/54 11064
Raw data (stat): 11064 (pb2sat-v2) R 11063 7266 7265 0 -1 0 238134 0 0 0 8504 495 0 0 25 0 1 0 969296360 676601856 148393 4294967295 134512640 135730672 3221224576 3219937968 134611102 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 165186 148393 301 301 0 164885 0
vsize: 660744
[startup+100.003 s]
Raw data (loadavg): 0.96 0.94 0.93 2/54 11064
Raw data (stat): 11064 (pb2sat-v2) R 11063 7266 7265 0 -1 0 253759 0 0 0 9473 526 0 0 25 0 1 0 969296360 749236224 163837 4294967295 134512640 135730672 3221224576 3220128704 134732194 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 182919 163838 301 301 0 182618 0
vsize: 731676
[startup+110.003 s]
Raw data (loadavg): 0.97 0.94 0.93 2/54 11064
Raw data (stat): 11064 (pb2sat-v2) R 11063 7266 7265 0 -1 0 263597 0 0 0 10437 563 0 0 25 0 1 0 969296360 404160512 98250 4294967295 134512640 135730672 3221224576 3221222764 135281170 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 98672 98250 301 301 0 98371 0
vsize: 394688
[startup+114.982 s]
Raw data (loadavg): 0.97 0.94 0.93 1/53 11064
Raw data (stat): 11064 (pb2sat-v2) R 11063 7266 7265 0 -1 0 263597 0 0 0 10437 563 0 0 25 0 1 0 969296360 404160512 98250 4294967295 134512640 135730672 3221224576 3221222764 135281170 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 98672 98250 301 301 0 98371 0
vsize: 0

Child status: 1
Real time (s): 114.981
CPU time (s): 114.981
CPU user time (s): 109.14
CPU system time (s): 5.84011
CPU usage (%): 99.9994
Max. virtual memory (Kb): 731676
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####