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 42710 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-06-16 14:02:40 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25927 boxname=wulflinc1 idbench=1227 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  3083eada14ab9f00dcc840f6e3dc6e3b  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-kb2.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-kb2.opb
IDLAUNCH: 25927
/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:        734000 kB
Buffers:         18544 kB
Cached:         257944 kB
SwapCached:       1156 kB
Active:          25892 kB
Inactive:       252824 kB
HighTotal:      131008 kB
HighFree:          420 kB
LowTotal:       903652 kB
LowFree:        733580 kB
SwapTotal:     2097136 kB
SwapFree:      2094896 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5364 kB
Slab:            16120 kB
Committed_AS:    92720 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 14:04:26 (client local time) WITH STATUS 1 IN 106.138 SECONDS
stats: 25927 7 106.138 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): 0.93 0.98 0.92 2/55 20309
Raw data (stat): 20309 (runsolver) R 20308 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 914472918 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+10.0007 s]
Raw data (loadavg): 0.94 0.98 0.92 2/55 20309
Raw data (stat): 20309 (pb2sat-v2) R 20308 8378 8377 0 -1 0 28977 0 0 0 941 57 0 0 25 0 1 0 914472918 89600000 17978 4294967295 134512640 135730672 3221224576 3221133632 134770341 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21875 17979 301 301 0 21574 0
vsize: 87500
[startup+20.0005 s]
Raw data (loadavg): 0.95 0.98 0.92 2/55 20309
Raw data (stat): 20309 (pb2sat-v2) R 20308 8378 8377 0 -1 0 57454 0 0 0 1887 112 0 0 25 0 1 0 914472918 176562176 34985 4294967295 134512640 135730672 3221224576 3221133152 134770825 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43106 34985 301 301 0 42805 0
vsize: 172424
[startup+30.0013 s]
Raw data (loadavg): 0.96 0.98 0.92 2/55 20309
Raw data (stat): 20309 (pb2sat-v2) R 20308 8378 8377 0 -1 0 91459 0 0 0 2826 174 0 0 25 0 1 0 914472918 339193856 58568 4294967295 134512640 135730672 3221224576 3221135152 134788521 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 82811 58573 301 301 0 82510 0
vsize: 331244
[startup+40.0011 s]
Raw data (loadavg): 0.96 0.98 0.92 2/55 20309
Raw data (stat): 20309 (pb2sat-v2) R 20308 8378 8377 0 -1 0 113070 0 0 0 3783 216 0 0 25 0 1 0 914472918 348499968 67655 4294967295 134512640 135730672 3221224576 3221133584 134786278 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85083 67655 301 301 0 84782 0
vsize: 340332
[startup+50.0019 s]
Raw data (loadavg): 0.97 0.98 0.92 2/55 20309
Raw data (stat): 20309 (pb2sat-v2) R 20308 8378 8377 0 -1 0 153241 0 0 0 4714 285 0 0 25 0 1 0 914472918 477700096 86768 4294967295 134512640 135730672 3221224576 3221134080 134546400 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 116626 86768 301 301 0 116325 0
vsize: 466504
[startup+60.0017 s]
Raw data (loadavg): 0.97 0.98 0.92 2/55 20309
Raw data (stat): 20309 (pb2sat-v2) R 20308 8378 8377 0 -1 0 165484 0 0 0 5693 307 0 0 25 0 1 0 914472918 477700096 98768 4294967295 134512640 135730672 3221224576 3221133632 134770700 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 116626 98768 301 301 0 116325 0
vsize: 466504
[startup+70.0015 s]
Raw data (loadavg): 0.98 0.98 0.92 2/55 20309
Raw data (stat): 20309 (pb2sat-v2) R 20308 8378 8377 0 -1 0 204698 0 0 0 6619 381 0 0 25 0 1 0 914472918 594853888 113196 4294967295 134512640 135730672 3221224576 3221133696 134610881 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145228 113196 301 301 0 144927 0
vsize: 580912
[startup+80.0023 s]
Raw data (loadavg): 0.98 0.98 0.92 2/55 20309
Raw data (stat): 20309 (pb2sat-v2) R 20308 8378 8377 0 -1 0 221152 0 0 0 7589 411 0 0 25 0 1 0 914472918 654270464 129448 4294967295 134512640 135730672 3221224576 3221135356 135301640 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 159734 129448 301 301 0 159433 0
vsize: 638936
[startup+90.002 s]
Raw data (loadavg): 0.98 0.98 0.92 2/55 20309
Raw data (stat): 20309 (pb2sat-v2) R 20308 8378 8377 0 -1 0 240555 0 0 0 8552 449 0 0 25 0 1 0 914472918 684855296 148376 4294967295 134512640 135730672 3221224576 3221134096 134770197 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 167201 148377 301 301 0 166900 0
vsize: 668804
[startup+100.002 s]
Raw data (loadavg): 0.98 0.98 0.92 2/55 20309
Raw data (stat): 20309 (pb2sat-v2) R 20308 8378 8377 0 -1 0 251441 0 0 0 9518 482 0 0 25 0 1 0 914472918 390017024 94299 4294967295 134512640 135730672 3221224576 3221222764 135281170 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 95219 94299 301 301 0 94918 0
vsize: 380876
[startup+106.134 s]
Raw data (loadavg): 1.06 1.00 0.93 1/54 20309
Raw data (stat): 20309 (pb2sat-v2) R 20308 8378 8377 0 -1 0 251441 0 0 0 9518 482 0 0 25 0 1 0 914472918 390017024 94299 4294967295 134512640 135730672 3221224576 3221222764 135281170 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 95219 94299 301 301 0 94918 0
vsize: 0

Child status: 1
Real time (s): 106.134
CPU time (s): 106.138
CPU user time (s): 101.115
CPU system time (s): 5.02324
CPU usage (%): 100.003
Max. virtual memory (Kb): 668804
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####