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-v2-13-7/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-kb2.opb
MD5SUM3083eada14ab9f00dcc840f6e3dc6e3b
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved NO
Number of terms in the objective function 39
Biggest coefficient in the objective function 540672
Number of bits for the biggest coefficient in the objective function 20
Sum of the numbers in the objective function 1507239
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 5581947011072
Number of bits of the biggest number in a constraint 43
Biggest sum of numbers in a constraint 73534396296900
Number of bits of the biggest sum of numbers47
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1227.97
Number of variables749
Total number of constraints52
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 constraints52
Minimum length of a constraint10
Maximum length of a constraint200

Trace number 35444 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-05-28 13:13:27 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24755 boxname=wulflinc2 idbench=1227 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  3083eada14ab9f00dcc840f6e3dc6e3b  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-kb2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-kb2.opb
IDLAUNCH: 24755
/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:        710584 kB
Buffers:         37404 kB
Cached:         264104 kB
SwapCached:        820 kB
Active:          18532 kB
Inactive:       285180 kB
HighTotal:      131008 kB
HighFree:         5040 kB
LowTotal:       903652 kB
LowFree:        705544 kB
SwapTotal:     2097136 kB
SwapFree:      2095480 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           5340 kB
Slab:            14704 kB
Committed_AS:    71792 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 13:15:10 (client local time) WITH STATUS 1 IN 102.12 SECONDS
stats: 24755 7 102.12 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
Raw data (loadavg): 0.91 0.94 0.90 2/54 11779
Raw data (stat): 11779 (runsolver) R 11778 31399 31398 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 806856067 884736 93 4294967295 134512640 135332820 3221224464 3221219360 134799896 0 0 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 93 205 205 0 11 0
vsize: 864
Current StackSize limit: 67108864 bytes
[startup+10.0002 s]
Raw data (loadavg): 0.93 0.94 0.90 2/54 11779
Raw data (stat): 11779 (pb2sat) R 11778 31399 31398 0 -1 0 30010 0 0 0 938 61 0 0 25 0 1 0 806856067 91185152 19022 4294967295 134512640 135726644 3221224592 3221145512 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22262 19022 300 300 0 21962 0
vsize: 89048
[startup+20.0004 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 11779
Raw data (stat): 11779 (pb2sat) R 11778 31399 31398 0 -1 0 59324 0 0 0 1880 119 0 0 25 0 1 0 806856067 179712000 36859 4294967295 134512640 135726644 3221224592 3221145852 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43875 36859 300 300 0 43575 0
vsize: 175500
[startup+30.0015 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 11779
Raw data (stat): 11779 (pb2sat) R 11778 31399 31398 0 -1 0 96720 0 0 0 2809 191 0 0 25 0 1 0 806856067 289792000 51593 4294967295 134512640 135726644 3221224592 3221148956 135298005 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 70750 51593 300 300 0 70450 0
vsize: 283000
[startup+40.0013 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 11779
Raw data (stat): 11779 (pb2sat) R 11778 31399 31398 0 -1 0 116383 0 0 0 3769 231 0 0 25 0 1 0 806856067 354074624 71006 4294967295 134512640 135726644 3221224592 3221147192 135281604 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 86444 71006 300 300 0 86144 0
vsize: 345776
[startup+50.0025 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 11779
Raw data (stat): 11779 (pb2sat) R 11778 31399 31398 0 -1 0 155499 0 0 0 4695 305 0 0 25 0 1 0 806856067 476889088 89062 4294967295 134512640 135726644 3221224592 3221147548 135279149 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 116428 89062 300 300 0 116128 0
vsize: 465712
[startup+60.0026 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 11779
Raw data (stat): 11779 (pb2sat) R 11778 31399 31398 0 -1 0 191143 0 0 0 5622 378 0 0 25 0 1 0 806856067 577552384 99909 4294967295 134512640 135726644 3221224592 3221147052 134604406 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 141004 99909 300 300 0 140704 0
vsize: 564016
[startup+70.0034 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 11779
Raw data (stat): 11779 (pb2sat) R 11778 31399 31398 0 -1 0 207481 0 0 0 6590 410 0 0 25 0 1 0 806856067 632598528 116028 4294967295 134512640 135726644 3221224592 3221146160 134780450 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154443 116028 300 300 0 154143 0
vsize: 617772
[startup+80.0036 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 11779
Raw data (stat): 11779 (pb2sat) R 11778 31399 31398 0 -1 0 227364 0 0 0 7551 449 0 0 25 0 1 0 806856067 664420352 135666 4294967295 134512640 135726644 3221224592 3221145472 134554780 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 162212 135666 300 300 0 161912 0
vsize: 648848
[startup+90.0038 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 11779
Raw data (stat): 11779 (pb2sat) R 11778 31399 31398 0 -1 0 247492 0 0 0 8516 484 0 0 25 0 1 0 806856067 695959552 155443 4294967295 134512640 135726644 3221224592 3221146000 134558066 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 169912 155443 300 300 0 169612 0
vsize: 679648
[startup+100.005 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 11779
Raw data (stat): 11779 (pb2sat) R 11778 31399 31398 0 -1 0 250965 0 0 0 9496 505 0 0 25 0 1 0 806856067 382873600 93023 4294967295 134512640 135726644 3221224592 3221222944 135280446 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 93475 93023 300 300 0 93175 0
vsize: 373900
[startup+102.113 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 11779
Raw data (stat): 11779 (pb2sat) R 11778 31399 31398 0 -1 0 250965 0 0 0 9496 505 0 0 25 0 1 0 806856067 382873600 93023 4294967295 134512640 135726644 3221224592 3221222944 135280446 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 93475 93023 300 300 0 93175 0
vsize: 0

Child status: 1
Real time (s): 102.112
CPU time (s): 102.12
CPU user time (s): 96.8693
CPU system time (s): 5.2512
CPU usage (%): 100.008
Max. virtual memory (Kb): 679648
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####