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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-share1b.opb
MD5SUM8d3c68301f62da0e55b9c337557ad45c
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 930
Biggest coefficient in the objective function 268435456000000
Number of bits for the biggest coefficient in the objective function 48
Sum of the numbers in the objective function 2701523689249770
Number of bits of the sum of numbers in the objective function 52
Biggest number in a constraint 7098668259737600
Number of bits of the biggest number in a constraint 53
Biggest sum of numbers in a constraint 57387730531810471
Number of bits of the biggest sum of numbers56
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.317951
Number of variables6750
Total number of constraints117
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints117
Minimum length of a constraint30
Maximum length of a constraint1110

Trace number 35098 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc20 THE 2005-05-28 12:13:44 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24403 boxname=wulflinc20 idbench=875 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  8d3c68301f62da0e55b9c337557ad45c  /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-20-10-share1b.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-20-10-share1b.opb
IDLAUNCH: 24403
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.215
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	: 3
cpu MHz		: 451.215
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        709584 kB
Buffers:         34096 kB
Cached:         267452 kB
SwapCached:        644 kB
Active:          42032 kB
Inactive:       261576 kB
HighTotal:      131008 kB
HighFree:        31724 kB
LowTotal:       903652 kB
LowFree:        677860 kB
SwapTotal:     2097892 kB
SwapFree:      2096312 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            15780 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:15:35 (client local time) WITH STATUS 1 IN 110.929 SECONDS
stats: 24403 7 110.929 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): 0.90 0.94 0.90 2/54 10393
Raw data (stat): 10393 (runsolver) R 10392 25399 25398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864715457 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+10.0004 s]
Raw data (loadavg): 0.92 0.95 0.90 2/54 10393
Raw data (stat): 10393 (pb2sat) R 10392 25399 25398 0 -1 0 30553 0 0 0 934 64 0 0 25 0 1 0 864715457 90845184 19405 4294967295 134512640 135726644 3221224576 3220851728 134554729 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 22179 19405 300 300 0 21879 0
vsize: 88716
[startup+20.1031 s]
Raw data (loadavg): 0.93 0.95 0.91 2/54 10393
Raw data (stat): 10393 (pb2sat) R 10392 25399 25398 0 -1 0 60031 0 0 0 1889 119 0 0 25 0 1 0 864715457 178159616 37657 4294967295 134512640 135726644 3221224576 3220864988 135287558 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43496 37657 300 300 0 43196 0
vsize: 173984
[startup+30.1041 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 10393
Raw data (stat): 10393 (pb2sat) R 10392 25399 25398 0 -1 0 99447 0 0 0 2809 199 0 0 25 0 1 0 864715457 331968512 54880 4294967295 134512640 135726644 3221224576 3220858400 134780348 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 81047 54880 300 300 0 80747 0
vsize: 324188
[startup+40.1034 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 10393
Raw data (stat): 10393 (pb2sat) R 10392 25399 25398 0 -1 0 116751 0 0 0 3777 232 0 0 25 0 1 0 864715457 350363648 71953 4294967295 134512640 135726644 3221224576 3220864952 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85538 71954 300 300 0 85238 0
vsize: 342152
[startup+50.1042 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 10393
Raw data (stat): 10393 (pb2sat) R 10392 25399 25398 0 -1 0 160397 0 0 0 4703 306 0 0 25 0 1 0 864715457 559890432 114454 4294967295 134512640 135726644 3221224576 3220864160 134771789 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 136692 114456 300 300 0 136392 0
vsize: 546768
[startup+60.1045 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 10393
Raw data (stat): 10393 (pb2sat) R 10392 25399 25398 0 -1 0 195932 0 0 0 5628 381 0 0 25 0 1 0 864715457 595738624 106773 4294967295 134512640 135726644 3221224576 3220863860 135287525 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145444 106774 300 300 0 145144 0
vsize: 581776
[startup+70.1046 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 10393
Raw data (stat): 10393 (pb2sat) R 10392 25399 25398 0 -1 0 207490 0 0 0 6608 401 0 0 25 0 1 0 864715457 629293056 118124 4294967295 134512640 135726644 3221224576 3220865292 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153636 118124 300 300 0 153336 0
vsize: 614544
[startup+80.1043 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 10393
Raw data (stat): 10393 (pb2sat) R 10392 25399 25398 0 -1 0 226970 0 0 0 7572 437 0 0 25 0 1 0 864715457 655523840 137369 4294967295 134512640 135726644 3221224576 3220869680 134782702 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 160040 137370 300 300 0 159740 0
vsize: 640160
[startup+90.1044 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 10393
Raw data (stat): 10393 (pb2sat) R 10392 25399 25398 0 -1 0 245348 0 0 0 8535 474 0 0 25 0 1 0 864715457 732356608 155535 4294967295 134512640 135726644 3221224576 3220866800 134780362 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 178798 155535 300 300 0 178498 0
vsize: 715192
[startup+100.105 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 10393
Raw data (stat): 10393 (pb2sat) R 10392 25399 25398 0 -1 0 263116 0 0 0 9500 510 0 0 25 0 1 0 864715457 757903360 173098 4294967295 134512640 135726644 3221224576 3220867064 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 185035 173098 300 300 0 184735 0
vsize: 740140
[startup+110.105 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 10393
Raw data (stat): 10393 (pb2sat) R 10392 25399 25398 0 -1 0 264452 0 0 0 10482 528 0 0 25 0 1 0 864715457 400121856 97230 4294967295 134512640 135726644 3221224576 3221222944 135101169 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97686 97230 300 300 0 97386 0
vsize: 390744
[startup+110.933 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 10393
Raw data (stat): 10393 (pb2sat) R 10392 25399 25398 0 -1 0 264452 0 0 0 10482 528 0 0 25 0 1 0 864715457 400121856 97230 4294967295 134512640 135726644 3221224576 3221222944 135101169 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97686 97230 300 300 0 97386 0
vsize: 0

Child status: 1
Real time (s): 110.932
CPU time (s): 110.929
CPU user time (s): 105.44
CPU system time (s): 5.48917
CPU usage (%): 99.997
Max. virtual memory (Kb): 740140
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####