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/plato.asu.edu/pub/milp/normalized-mps-v2-13-7-mkc1.opb
MD5SUMd176539199497efb0c829821dd5c09ea
Bench Categoryoptimization, medium integers (OPTMEDINT)
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 18598
Biggest coefficient in the objective function 2560000
Number of bits for the biggest coefficient in the objective function 22
Sum of the numbers in the objective function 7036117195
Number of bits of the sum of numbers in the objective function 33
Biggest number in a constraint 524288000
Number of bits of the biggest number in a constraint 29
Biggest sum of numbers in a constraint 8002856320
Number of bits of the biggest sum of numbers33
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark7.43987
Number of variables21015
Total number of constraints8734
Number of constraints which are clauses712
Number of constraints which are cardinality constraints (but not clauses)3174
Number of constraints which are nor clauses,nor cardinality constraints4848
Minimum length of a constraint1
Maximum length of a constraint18426

Trace number 42980 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 20:19:17 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=26201 boxname=wulflinc4 idbench=1501 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  d176539199497efb0c829821dd5c09ea  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-mkc1.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-mkc1.opb
IDLAUNCH: 26201
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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		: 451.169
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:        745280 kB
Buffers:         18680 kB
Cached:         248336 kB
SwapCached:        904 kB
Active:          29444 kB
Inactive:       239676 kB
HighTotal:      131008 kB
HighFree:         1484 kB
LowTotal:       903652 kB
LowFree:        743796 kB
SwapTotal:     2097136 kB
SwapFree:      2095236 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            14384 kB
Committed_AS:    71908 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 20:21:15 (client local time) WITH STATUS 1 IN 118.155 SECONDS
stats: 26201 7 118.155 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): 0.91 0.95 0.90 2/54 32412
Raw data (stat): 32412 (runsolver) R 32411 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 973579896 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 32412
Raw data (stat): 32412 (pb2sat-v2) R 32411 21152 21151 0 -1 0 4407 0 0 0 989 10 0 0 25 0 1 0 973579896 14987264 2765 4294967295 134512640 135730672 3221224576 3221221664 134561656 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 3659 2765 301 301 0 3358 0
vsize: 14636
[startup+20.0008 s]
Raw data (loadavg): 0.93 0.96 0.91 2/54 32412
Raw data (stat): 32412 (pb2sat-v2) R 32411 21152 21151 0 -1 0 24327 0 0 0 1944 54 0 0 25 0 1 0 973579896 74547200 16127 4294967295 134512640 135730672 3221224576 3215654764 134637875 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 18200 16127 301 301 0 17899 0
vsize: 72800
[startup+30.0016 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 32412
Raw data (stat): 32412 (pb2sat-v2) R 32411 21152 21151 0 -1 0 55336 0 0 0 2879 120 0 0 25 0 1 0 973579896 165519360 32830 4294967295 134512640 135730672 3221224576 3212720352 134770727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 40410 32830 301 301 0 40109 0
vsize: 161640
[startup+40.0018 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 32412
Raw data (stat): 32412 (pb2sat-v2) R 32411 21152 21151 0 -1 0 82314 0 0 0 3824 174 0 0 25 0 1 0 973579896 251674624 49882 4294967295 134512640 135730672 3221224576 3212731112 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 61444 49882 301 301 0 61143 0
vsize: 245776
[startup+50.0023 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 32412
Raw data (stat): 32412 (pb2sat-v2) R 32411 21152 21151 0 -1 0 110124 0 0 0 4763 236 0 0 25 0 1 0 973579896 354091008 65179 4294967295 134512640 135730672 3221224576 3212710108 134608021 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 86448 65179 301 301 0 86147 0
vsize: 345792
[startup+60.0022 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 32412
Raw data (stat): 32412 (pb2sat-v2) R 32411 21152 21151 0 -1 0 148892 0 0 0 5690 309 0 0 25 0 1 0 973579896 552960000 102907 4294967295 134512640 135730672 3221224576 3213832656 134775338 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 135000 102909 301 301 0 134699 0
vsize: 540000
[startup+70.0034 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 32412
Raw data (stat): 32412 (pb2sat-v2) R 32411 21152 21151 0 -1 0 164333 0 0 0 6655 344 0 0 25 0 1 0 973579896 492064768 99543 4294967295 134512640 135730672 3221224576 3213689120 135109362 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 120133 99545 301 301 0 119832 0
vsize: 480532
[startup+80.004 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 32412
Raw data (stat): 32412 (pb2sat-v2) R 32411 21152 21151 0 -1 0 201768 0 0 0 7574 425 0 0 25 0 1 0 973579896 600973312 112183 4294967295 134512640 135730672 3221224576 3212698416 135288444 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 146722 112184 301 301 0 146421 0
vsize: 586888
[startup+90.0038 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 32412
Raw data (stat): 32412 (pb2sat-v2) R 32411 21152 21151 0 -1 0 218664 0 0 0 8538 461 0 0 25 0 1 0 973579896 660209664 128877 4294967295 134512640 135730672 3221224576 3214919592 135301581 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 161184 128877 301 301 0 160883 0
vsize: 644736
[startup+100.004 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 32412
Raw data (stat): 32412 (pb2sat-v2) R 32411 21152 21151 0 -1 0 238450 0 0 0 9499 501 0 0 25 0 1 0 973579896 691163136 148415 4294967295 134512640 135730672 3221224576 3212820668 134606866 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 168741 148415 301 301 0 168440 0
vsize: 674964
[startup+110.005 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 32412
Raw data (stat): 32412 (pb2sat-v2) R 32411 21152 21151 0 -1 0 251935 0 0 0 10470 530 0 0 25 0 1 0 973579896 711880704 161592 4294967295 134512640 135730672 3221224576 3221222736 134540250 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 173799 161592 301 301 0 173498 0
vsize: 695196
[startup+118.157 s]
Raw data (loadavg): 0.98 0.97 0.91 1/53 32412
Raw data (stat): 32412 (pb2sat-v2) R 32411 21152 21151 0 -1 0 251935 0 0 0 10470 530 0 0 25 0 1 0 973579896 711880704 161592 4294967295 134512640 135730672 3221224576 3221222736 134540250 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 173799 161592 301 301 0 173498 0
vsize: 0

Child status: 1
Real time (s): 118.157
CPU time (s): 118.155
CPU user time (s): 112.524
CPU system time (s): 5.63114
CPU usage (%): 99.9983
Max. virtual memory (Kb): 695196
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####