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-mkc.opb
MD5SUM6ef3eff2fef1e9f71734c5cb8b6e12e4
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 2946
Biggest coefficient in the objective function 20000
Number of bits for the biggest coefficient in the objective function 15
Sum of the numbers in the objective function 31442101
Number of bits of the sum of numbers in the objective function 25
Biggest number in a constraint 67108864000
Number of bits of the biggest number in a constraint 36
Biggest sum of numbers in a constraint 138201238403
Number of bits of the biggest sum of numbers38
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1231.25
Number of variables5383
Total number of constraints8734
Number of constraints which are clauses2977
Number of constraints which are cardinality constraints (but not clauses)5731
Number of constraints which are nor clauses,nor cardinality constraints26
Minimum length of a constraint1
Maximum length of a constraint2952

Trace number 42457 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-06-16 08:09:38 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25678 boxname=wulflinc1 idbench=978 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  6ef3eff2fef1e9f71734c5cb8b6e12e4  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-mkc.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-mkc.opb
IDLAUNCH: 25678
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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		: 451.053
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:        708084 kB
Buffers:         33496 kB
Cached:         268796 kB
SwapCached:       1192 kB
Active:          35880 kB
Inactive:       268656 kB
HighTotal:      131008 kB
HighFree:         2996 kB
LowTotal:       903652 kB
LowFree:        705088 kB
SwapTotal:     2097136 kB
SwapFree:      2094880 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5364 kB
Slab:            16232 kB
Committed_AS:    92716 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 08:11:31 (client local time) WITH STATUS 1 IN 113.097 SECONDS
stats: 25678 7 113.097 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): 0.84 0.94 0.90 1/55 16621
Raw data (stat): 16621 (runsolver) R 16620 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 912354435 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 0.94 0.90 2/55 16621
Raw data (stat): 16621 (pb2sat-v2) R 16620 8378 8377 0 -1 0 27285 0 0 0 936 63 0 0 25 0 1 0 912354435 88195072 16160 4294967295 134512640 135730672 3221224576 3219993196 134607983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21532 16160 301 301 0 21231 0
vsize: 86128
[startup+20.0014 s]
Raw data (loadavg): 0.89 0.94 0.90 2/55 16621
Raw data (stat): 16621 (pb2sat-v2) R 16620 8378 8377 0 -1 0 56043 0 0 0 1878 121 0 0 25 0 1 0 912354435 175505408 33687 4294967295 134512640 135730672 3221224576 3220272272 134785863 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 42848 33687 301 301 0 42547 0
vsize: 171392
[startup+30.0022 s]
Raw data (loadavg): 0.90 0.94 0.90 2/55 16621
Raw data (stat): 16621 (pb2sat-v2) R 16620 8378 8377 0 -1 0 90770 0 0 0 2810 190 0 0 25 0 1 0 912354435 345280512 58497 4294967295 134512640 135730672 3221224576 3220544448 134788521 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 84297 58497 301 301 0 83996 0
vsize: 337188
[startup+40.002 s]
Raw data (loadavg): 0.92 0.94 0.90 2/55 16621
Raw data (stat): 16621 (pb2sat-v2) R 16620 8378 8377 0 -1 0 111915 0 0 0 3767 233 0 0 25 0 1 0 912354435 347557888 67129 4294967295 134512640 135730672 3221224576 3219948632 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 84853 67129 301 301 0 84552 0
vsize: 339412
[startup+50.0028 s]
Raw data (loadavg): 0.93 0.94 0.90 2/55 16621
Raw data (stat): 16621 (pb2sat-v2) R 16620 8378 8377 0 -1 0 151469 0 0 0 4695 304 0 0 25 0 1 0 912354435 549244928 105657 4294967295 134512640 135730672 3221224576 3219883016 135284962 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 134093 105657 301 301 0 133792 0
vsize: 536372
[startup+60.0026 s]
Raw data (loadavg): 0.94 0.95 0.90 2/55 16621
Raw data (stat): 16621 (pb2sat-v2) R 16620 8378 8377 0 -1 0 183682 0 0 0 5627 373 0 0 25 0 1 0 912354435 690221056 119097 4294967295 134512640 135730672 3221224576 3219994608 134788521 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 168511 119097 301 301 0 168210 0
vsize: 674044
[startup+70.0033 s]
Raw data (loadavg): 0.95 0.95 0.91 2/55 16621
Raw data (stat): 16621 (pb2sat-v2) R 16620 8378 8377 0 -1 0 200665 0 0 0 6589 411 0 0 25 0 1 0 912354435 623108096 111314 4294967295 134512640 135730672 3221224576 3219865952 134770867 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 152126 111314 301 301 0 151825 0
vsize: 608504
[startup+80.004 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 16621
Raw data (stat): 16621 (pb2sat-v2) R 16620 8378 8377 0 -1 0 219849 0 0 0 7554 447 0 0 25 0 1 0 912354435 651358208 130278 4294967295 134512640 135730672 3221224576 3219871224 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 159023 130279 301 301 0 158722 0
vsize: 636092
[startup+90.0038 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 16621
Raw data (stat): 16621 (pb2sat-v2) R 16620 8378 8377 0 -1 0 239020 0 0 0 8513 487 0 0 25 0 1 0 912354435 679743488 149231 4294967295 134512640 135730672 3221224576 3219872112 134549367 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 165953 149231 301 301 0 165652 0
vsize: 663812
[startup+100.004 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 16621
Raw data (stat): 16621 (pb2sat-v2) R 16620 8378 8377 0 -1 0 254658 0 0 0 9479 522 0 0 25 0 1 0 912354435 753627136 164687 4294967295 134512640 135730672 3221224576 3220707648 134770605 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 183991 164687 301 301 0 183690 0
vsize: 735964
[startup+110.004 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 16621
Raw data (stat): 16621 (pb2sat-v2) R 16620 8378 8377 0 -1 0 260162 0 0 0 10453 547 0 0 25 0 1 0 912354435 402468864 97765 4294967295 134512640 135730672 3221224576 3221222764 135281249 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 98259 97765 301 301 0 97958 0
vsize: 393036
[startup+113.089 s]
Raw data (loadavg): 0.97 0.95 0.91 1/54 16621
Raw data (stat): 16621 (pb2sat-v2) R 16620 8378 8377 0 -1 0 260162 0 0 0 10453 547 0 0 25 0 1 0 912354435 402468864 97765 4294967295 134512640 135730672 3221224576 3221222764 135281249 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 98259 97765 301 301 0 97958 0
vsize: 0

Child status: 1
Real time (s): 113.089
CPU time (s): 113.097
CPU user time (s): 107.409
CPU system time (s): 5.68813
CPU usage (%): 100.007
Max. virtual memory (Kb): 735964
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####