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/MIPLIB/miplib2003/normalized-mps-v2-13-7-misc07.opb
MD5SUMa3dd3cd7dd293e24bffaff8bb73da54c
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1408128
Optimality of the best value was proved NO
Number of terms in the objective function 21
Biggest coefficient in the objective function 1048576
Number of bits for the biggest coefficient in the objective function 21
Sum of the numbers in the objective function 2097151
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 1048576
Number of bits of the biggest number in a constraint 21
Biggest sum of numbers in a constraint 11486079
Number of bits of the biggest sum of numbers24
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1189.01
Number of variables280
Total number of constraints471
Number of constraints which are clauses127
Number of constraints which are cardinality constraints (but not clauses)272
Number of constraints which are nor clauses,nor cardinality constraints72
Minimum length of a constraint1
Maximum length of a constraint253

Trace number 42841 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-06-16 16:27:48 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=26061 boxname=wulflinc1 idbench=1361 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  a3dd3cd7dd293e24bffaff8bb73da54c  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-misc07.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-misc07.opb
IDLAUNCH: 26061
/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:        702856 kB
Buffers:         25920 kB
Cached:         281712 kB
SwapCached:       1156 kB
Active:          27180 kB
Inactive:       282736 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        702604 kB
SwapTotal:     2097136 kB
SwapFree:      2094896 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5364 kB
Slab:            16056 kB
Committed_AS:    92716 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 16:29:36 (client local time) WITH STATUS 1 IN 108.603 SECONDS
stats: 26061 7 108.603 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 2/55 23121
Raw data (stat): 23121 (runsolver) R 23120 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 915343814 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+10.0009 s]
Raw data (loadavg): 0.92 0.94 0.90 2/55 23121
Raw data (stat): 23121 (pb2sat-v2) R 23120 8378 8377 0 -1 0 29844 0 0 0 939 60 0 0 25 0 1 0 915343814 89022464 18706 4294967295 134512640 135730672 3221224576 3221153256 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21734 18707 301 301 0 21433 0
vsize: 86936
[startup+20.0017 s]
Raw data (loadavg): 0.93 0.95 0.91 2/55 23121
Raw data (stat): 23121 (pb2sat-v2) R 23120 8378 8377 0 -1 0 59223 0 0 0 1880 119 0 0 25 0 1 0 915343814 176062464 36863 4294967295 134512640 135730672 3221224576 3221141452 134608033 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 42984 36864 301 301 0 42683 0
vsize: 171936
[startup+30.0015 s]
Raw data (loadavg): 0.94 0.95 0.91 2/55 23121
Raw data (stat): 23121 (pb2sat-v2) R 23120 8378 8377 0 -1 0 99116 0 0 0 2801 198 0 0 25 0 1 0 915343814 332705792 54572 4294967295 134512640 135730672 3221224576 3221175696 134784086 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 81227 54572 301 301 0 80926 0
vsize: 324908
[startup+40.0012 s]
Raw data (loadavg): 0.95 0.95 0.91 2/55 23121
Raw data (stat): 23121 (pb2sat-v2) R 23120 8378 8377 0 -1 0 116727 0 0 0 3768 232 0 0 25 0 1 0 915343814 348385280 71939 4294967295 134512640 135730672 3221224576 3221163164 135301624 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85055 71940 301 301 0 84754 0
vsize: 340220
[startup+50.001 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 23121
Raw data (stat): 23121 (pb2sat-v2) R 23120 8378 8377 0 -1 0 158838 0 0 0 4697 302 0 0 25 0 1 0 915343814 556146688 112992 4294967295 134512640 135730672 3221224576 3221202368 134775341 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 135778 112994 301 301 0 135477 0
vsize: 543112
[startup+60.0018 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 23121
Raw data (stat): 23121 (pb2sat-v2) R 23120 8378 8377 0 -1 0 197517 0 0 0 5619 381 0 0 25 0 1 0 915343814 596860928 108355 4294967295 134512640 135730672 3221224576 3221210112 134786040 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145718 108356 301 301 0 145417 0
vsize: 582872
[startup+70.0016 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 23121
Raw data (stat): 23121 (pb2sat-v2) R 23120 8378 8377 0 -1 0 203563 0 0 0 6606 394 0 0 25 0 1 0 915343814 630415360 114289 4294967295 134512640 135730672 3221224576 3221132668 134608004 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153910 114289 301 301 0 153609 0
vsize: 615640
[startup+80.0014 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 23121
Raw data (stat): 23121 (pb2sat-v2) R 23120 8378 8377 0 -1 0 216634 0 0 0 7584 416 0 0 25 0 1 0 915343814 630415360 127127 4294967295 134512640 135730672 3221224576 3221181888 134546483 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153910 127127 301 301 0 153609 0
vsize: 615640
[startup+90.0012 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 23121
Raw data (stat): 23121 (pb2sat-v2) R 23120 8378 8377 0 -1 0 229869 0 0 0 8557 443 0 0 25 0 1 0 915343814 630415360 140129 4294967295 134512640 135730672 3221224576 3221135392 134770089 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153910 140130 301 301 0 153609 0
vsize: 615640
[startup+100.001 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 23121
Raw data (stat): 23121 (pb2sat-v2) R 23120 8378 8377 0 -1 0 240734 0 0 0 9538 463 0 0 25 0 1 0 915343814 680747008 150803 4294967295 134512640 135730672 3221224576 3221182904 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 166198 150803 301 301 0 165897 0
vsize: 664792
[startup+108.595 s]
Raw data (loadavg): 0.98 0.95 0.91 1/54 23121
Raw data (stat): 23121 (pb2sat-v2) R 23120 8378 8377 0 -1 0 240734 0 0 0 9538 463 0 0 25 0 1 0 915343814 680747008 150803 4294967295 134512640 135730672 3221224576 3221182904 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 166198 150803 301 301 0 165897 0
vsize: 0

Child status: 1
Real time (s): 108.595
CPU time (s): 108.603
CPU user time (s): 103.483
CPU system time (s): 5.12022
CPU usage (%): 100.008
Max. virtual memory (Kb): 664792
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####