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 35198 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc23 THE 2005-05-28 12:24:51 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24506 boxname=wulflinc23 idbench=978 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  6ef3eff2fef1e9f71734c5cb8b6e12e4  /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-mkc.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-mkc.opb
IDLAUNCH: 24506
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.037
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	: 3
cpu MHz		: 451.037
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:        783376 kB
Buffers:         32672 kB
Cached:         198168 kB
SwapCached:        700 kB
Active:          48080 kB
Inactive:       184832 kB
HighTotal:      131008 kB
HighFree:         4508 kB
LowTotal:       903652 kB
LowFree:        778868 kB
SwapTotal:     2097136 kB
SwapFree:      2095556 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5028 kB
Slab:            12876 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:26:31 (client local time) WITH STATUS 1 IN 100.152 SECONDS
stats: 24506 7 100.152 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 8763
Raw data (stat): 8763 (runsolver) R 8762 5562 5561 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864784876 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 0.94 0.90 2/54 8763
Raw data (stat): 8763 (pb2sat) R 8762 5562 5561 0 -1 0 28865 0 0 0 940 58 0 0 25 0 1 0 864784876 90771456 17717 4294967295 134512640 135726644 3221224592 3220041344 134554559 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22161 17717 300 300 0 21861 0
vsize: 88644
[startup+20.0011 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 8763
Raw data (stat): 8763 (pb2sat) R 8762 5562 5561 0 -1 0 58213 0 0 0 1880 117 0 0 25 0 1 0 864784876 179032064 35826 4294967295 134512640 135726644 3221224592 3220048108 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43709 35826 300 300 0 43409 0
vsize: 174836
[startup+30.0018 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 8763
Raw data (stat): 8763 (pb2sat) R 8762 5562 5561 0 -1 0 96567 0 0 0 2801 197 0 0 25 0 1 0 864784876 294154240 51964 4294967295 134512640 135726644 3221224592 3220080824 135101149 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 71815 51964 300 300 0 71515 0
vsize: 287260
[startup+40.0018 s]
Raw data (loadavg): 1.03 0.96 0.91 2/54 8763
Raw data (stat): 8763 (pb2sat) R 8762 5562 5561 0 -1 0 115606 0 0 0 3757 240 0 0 25 0 1 0 864784876 353931264 70745 4294967295 134512640 135726644 3221224592 3220168224 134558137 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 86409 70745 300 300 0 86109 0
vsize: 345636
[startup+50.0031 s]
Raw data (loadavg): 1.02 0.96 0.91 2/54 8763
Raw data (stat): 8763 (pb2sat) R 8762 5562 5561 0 -1 0 155673 0 0 0 4678 320 0 0 25 0 1 0 864784876 483672064 91205 4294967295 134512640 135726644 3221224592 3220188168 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 118084 91205 300 300 0 117784 0
vsize: 472336
[startup+60.0027 s]
Raw data (loadavg): 1.02 0.96 0.91 2/54 8763
Raw data (stat): 8763 (pb2sat) R 8762 5562 5561 0 -1 0 191975 0 0 0 5605 392 0 0 25 0 1 0 864784876 584335360 102691 4294967295 134512640 135726644 3221224592 3220198624 135280427 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 142660 102691 300 300 0 142360 0
vsize: 570640
[startup+70.0024 s]
Raw data (loadavg): 1.02 0.97 0.91 2/54 8763
Raw data (stat): 8763 (pb2sat) R 8762 5562 5561 0 -1 0 207966 0 0 0 6569 429 0 0 25 0 1 0 864784876 636137472 118449 4294967295 134512640 135726644 3221224592 3220192000 134782195 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 155307 118449 300 300 0 155007 0
vsize: 621228
[startup+80.0042 s]
Raw data (loadavg): 1.01 0.97 0.91 2/54 8763
Raw data (stat): 8763 (pb2sat) R 8762 5562 5561 0 -1 0 229461 0 0 0 7522 476 0 0 25 0 1 0 864784876 670064640 139682 4294967295 134512640 135726644 3221224592 3220509408 134607669 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 163590 139682 300 300 0 163290 0
vsize: 654360
[startup+90.0037 s]
Raw data (loadavg): 1.01 0.97 0.91 2/54 8763
Raw data (stat): 8763 (pb2sat) R 8762 5562 5561 0 -1 0 250117 0 0 0 8481 517 0 0 25 0 1 0 864784876 702881792 160083 4294967295 134512640 135726644 3221224592 3221125360 135139506 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 171602 160083 300 300 0 171302 0
vsize: 686408
[startup+100.037 s]
Raw data (loadavg): 1.01 0.97 0.91 2/54 8763
Raw data (stat): 8763 (pb2sat) R 8762 5562 5561 0 -1 0 250119 0 0 0 9464 537 0 0 25 0 1 0 864784876 249880576 60562 4294967295 134512640 135726644 3221224592 3221222932 135341057 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 61006 60562 300 300 0 60706 0
vsize: 244024
[startup+100.201 s]
Raw data (loadavg): 1.01 0.97 0.91 1/53 8763
Raw data (stat): 8763 (pb2sat) R 8762 5562 5561 0 -1 0 250119 0 0 0 9464 537 0 0 25 0 1 0 864784876 249880576 60562 4294967295 134512640 135726644 3221224592 3221222932 135341057 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 61006 60562 300 300 0 60706 0
vsize: 0

Child status: 1
Real time (s): 100.201
CPU time (s): 100.152
CPU user time (s): 94.6456
CPU system time (s): 5.50616
CPU usage (%): 99.951
Max. virtual memory (Kb): 686408
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####