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-air05.opb
MD5SUMa0fff131fa124ee4d61d9b3bf266a4ba
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 29628
Optimality of the best value was proved NO
Number of terms in the objective function 7195
Biggest coefficient in the objective function 2679
Number of bits for the biggest coefficient in the objective function 12
Sum of the numbers in the objective function 3908448
Number of bits of the sum of numbers in the objective function 22
Biggest number in a constraint 2679
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 3908448
Number of bits of the biggest sum of numbers22
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1175.13
Number of variables7195
Total number of constraints7621
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)7621
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint404

Trace number 42438 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-16 07:44:35 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25658 boxname=wulflinc3 idbench=958 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  a0fff131fa124ee4d61d9b3bf266a4ba  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-air05.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-air05.opb
IDLAUNCH: 25658
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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		: 451.190
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:        718280 kB
Buffers:         26668 kB
Cached:         267428 kB
SwapCached:        820 kB
Active:          33080 kB
Inactive:       263176 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        718028 kB
SwapTotal:     2097136 kB
SwapFree:      2095340 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            14332 kB
Committed_AS:    71900 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 07:46:31 (client local time) WITH STATUS 1 IN 115.423 SECONDS
stats: 25658 7 115.423 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: 45244
c big objective detected
c trying from 0 to 511

	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 1/54 18985
Raw data (stat): 18985 (runsolver) R 18984 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 969052203 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+10.0009 s]
Raw data (loadavg): 0.92 0.95 0.91 2/54 18985
Raw data (stat): 18985 (pb2sat-v2) R 18984 20224 20223 0 -1 0 13745 0 0 0 966 33 0 0 25 0 1 0 969052203 42377216 8039 4294967295 134512640 135730672 3221224576 3221223264 134748681 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 10346 8039 301 301 0 10045 0
vsize: 41384
[startup+20.002 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 18985
Raw data (stat): 18985 (pb2sat-v2) R 18984 20224 20223 0 -1 0 27602 0 0 0 1933 65 0 0 25 0 1 0 969052203 88678400 16419 4294967295 134512640 135730672 3221224576 3220837468 135301586 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21650 16419 301 301 0 21349 0
vsize: 86600
[startup+30.0015 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 18985
Raw data (stat): 18985 (pb2sat-v2) R 18984 20224 20223 0 -1 0 55160 0 0 0 2872 125 0 0 25 0 1 0 969052203 174833664 32747 4294967295 134512640 135730672 3221224576 3220433420 135301642 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42684 32747 301 301 0 42383 0
vsize: 170736
[startup+40.0014 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 18985
Raw data (stat): 18985 (pb2sat-v2) R 18984 20224 20223 0 -1 0 81618 0 0 0 3816 182 0 0 25 0 1 0 969052203 245096448 49787 4294967295 134512640 135730672 3221224576 3218241984 134770867 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 59838 49788 301 301 0 59537 0
vsize: 239352
[startup+50.0015 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 18985
Raw data (stat): 18985 (pb2sat-v2) R 18984 20224 20223 0 -1 0 108454 0 0 0 4754 245 0 0 25 0 1 0 969052203 345608192 64113 4294967295 134512640 135730672 3221224576 3219932424 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 84377 64113 301 301 0 84076 0
vsize: 337508
[startup+60.0021 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 18985
Raw data (stat): 18985 (pb2sat-v2) R 18984 20224 20223 0 -1 0 150075 0 0 0 5672 326 0 0 25 0 1 0 969052203 549314560 104534 4294967295 134512640 135730672 3221224576 3219980224 134776110 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 134110 104534 301 301 0 133809 0
vsize: 536440
[startup+70.003 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 18985
Raw data (stat): 18985 (pb2sat-v2) R 18984 20224 20223 0 -1 0 160435 0 0 0 6646 353 0 0 25 0 1 0 969052203 482201600 96261 4294967295 134512640 135730672 3221224576 3218813240 135284602 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 117725 96261 301 301 0 117424 0
vsize: 470900
[startup+80.0034 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 18985
Raw data (stat): 18985 (pb2sat-v2) R 18984 20224 20223 0 -1 0 197570 0 0 0 7567 431 0 0 25 0 1 0 969052203 591110144 108596 4294967295 134512640 135730672 3221224576 3219655884 134549352 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 144314 108596 301 301 0 144013 0
vsize: 577256
[startup+90.0037 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 18985
Raw data (stat): 18985 (pb2sat-v2) R 18984 20224 20223 0 -1 0 213861 0 0 0 8531 467 0 0 25 0 1 0 969052203 650346496 124673 4294967295 134512640 135730672 3221224576 3218068788 135109376 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 158776 124673 301 301 0 158475 0
vsize: 635104
[startup+100.004 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 18985
Raw data (stat): 18985 (pb2sat-v2) R 18984 20224 20223 0 -1 0 232854 0 0 0 9487 511 0 0 25 0 1 0 969052203 679948288 143420 4294967295 134512640 135730672 3221224576 3219412756 135281175 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 166003 143420 301 301 0 165702 0
vsize: 664012
[startup+110.005 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 18985
Raw data (stat): 18985 (pb2sat-v2) R 18984 20224 20223 0 -1 0 244713 0 0 0 10462 537 0 0 25 0 1 0 969052203 701407232 155108 4294967295 134512640 135730672 3221224576 3221222828 135281249 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 171242 155108 301 301 0 170941 0
vsize: 684968
[startup+115.44 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 18985
Raw data (stat): 18985 (pb2sat-v2) R 18984 20224 20223 0 -1 0 244713 0 0 0 10462 537 0 0 25 0 1 0 969052203 701407232 155108 4294967295 134512640 135730672 3221224576 3221222828 135281249 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 171242 155108 301 301 0 170941 0
vsize: 0

Child status: 1
Real time (s): 115.439
CPU time (s): 115.423
CPU user time (s): 109.74
CPU system time (s): 5.68314
CPU usage (%): 99.9865
Max. virtual memory (Kb): 684968
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####