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).
    Note that some very long lines in this section may be truncated by your web browser !
  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

Namemps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-bell5.opb
MD5SUMe2343a1c48cef657bed9677a2fcc9921
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1958102199971817
Optimality of the best value was proved NO
Number of terms in the objective function 1268
Biggest coefficient in the objective function 50331648000000000
Number of bits for the biggest coefficient in the objective function 56
Sum of the numbers in the objective function 888722133694353611
Number of bits of the sum of numbers in the objective function 60
Biggest number in a constraint 50331648000000000
Number of bits of the biggest number in a constraint 56
Biggest sum of numbers in a constraint 888722133694353611
Number of bits of the biggest sum of numbers60
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1238.15
Number of variables1704
Total number of constraints149
Number of constraints which are clauses15
Number of constraints which are cardinality constraints (but not clauses)30
Number of constraints which are nor clauses,nor cardinality constraints104
Minimum length of a constraint1
Maximum length of a constraint135

Trace number 9961

Launcher Data

LAUNCH ON wulflinc8 THE 2005-09-23 16:16:39 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8707 boxname=wulflinc8 idbench=503 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  e2343a1c48cef657bed9677a2fcc9921  /oldhome/oroussel/tmp/wulflinc8/normalized-mps-v2-20-10-bell5.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc8/normalized-mps-v2-20-10-bell5.opb
IDLAUNCH: 8707
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.023
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		: 451.023
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:        935288 kB
Buffers:         12964 kB
Cached:          69316 kB
SwapCached:          0 kB
Active:          45188 kB
Inactive:        40048 kB
HighTotal:      131008 kB
HighFree:        57652 kB
LowTotal:       903652 kB
LowFree:        877636 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6976 kB
Slab:             8644 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:18:43 (client local time) WITH STATUS 1 IN 122.905 SECONDS
stats: 8707 7 122.905 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 6389596258966901
c big objective detected
c trying from 0 to 511
c CONFLICT during preprocess 
c trying from 512 to 1023

	Unexpected exception :
	St9bad_alloc

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/8975/stat): 8975 (pb2sat) R 8974 8975 4060 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 21572544 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8975/statm): 373 2 364 364 0 9 0
[pid=8975] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc8/normalized-mps-v2-20-10-bell5.opb

[startup+10.0024 s]
Raw data (loadavg): 0.91 0.92 0.93 2/55 8975
Raw data (/proc/8975/stat): 8975 (pb2sat) R 8974 8975 4060 0 -1 0 28019 0 0 0 934 62 0 0 25 0 1 0 21572544 84348928 16862 4294967295 134512640 135987407 3221224560 3221203856 134640029 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8975/statm): 20593 16862 364 364 0 20229 0
[pid=8975] vsize: 82372
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 82372

[startup+20.0032 s]
Raw data (loadavg): 0.92 0.93 0.93 2/55 8975
Raw data (/proc/8975/stat): 8975 (pb2sat) R 8974 8975 4060 0 -1 0 54279 0 0 0 1876 119 0 0 25 0 1 0 21572544 160980992 31886 4294967295 134512640 135987407 3221224560 3221206240 134537525 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8975/statm): 39302 31886 364 364 0 38938 0
[pid=8975] vsize: 157208
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 157208

[startup+30.0039 s]
Raw data (loadavg): 0.93 0.93 0.93 2/55 8975
Raw data (/proc/8975/stat): 8975 (pb2sat) R 8974 8975 4060 0 -1 0 93212 0 0 0 2794 198 0 0 25 0 1 0 21572544 276635648 48599 4294967295 134512640 135987407 3221224560 3221207872 134638989 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8975/statm): 67538 48599 364 364 0 67174 0
[pid=8975] vsize: 270152
Current children cumulated CPU time (s) 29.92
Current children cumulated vsize (Kb) 270152

[startup+40.0047 s]
Raw data (loadavg): 0.94 0.93 0.93 2/55 8975
Raw data (/proc/8975/stat): 8975 (pb2sat) R 8974 8975 4060 0 -1 0 108014 0 0 0 3759 232 0 0 25 0 1 0 21572544 328421376 63197 4294967295 134512640 135987407 3221224560 3221223096 134827499 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8975/statm): 80181 63197 364 364 0 79817 0
[pid=8975] vsize: 320724
Current children cumulated CPU time (s) 39.91
Current children cumulated vsize (Kb) 320724

[startup+50.0055 s]
Raw data (loadavg): 0.95 0.93 0.93 2/55 8975
Raw data (/proc/8975/stat): 8975 (pb2sat) R 8974 8975 4060 0 -1 0 111119 0 0 0 4741 243 0 0 25 0 1 0 21572544 334577664 64454 4294967295 134512640 135987407 3221224560 3221223248 134811942 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8975/statm): 81684 64454 364 364 0 81320 0
[pid=8975] vsize: 326736
Current children cumulated CPU time (s) 49.84
Current children cumulated vsize (Kb) 326736

[startup+60.0063 s]
Raw data (loadavg): 0.96 0.93 0.93 2/55 8975
Raw data (/proc/8975/stat): 8975 (pb2sat) R 8974 8975 4060 0 -1 0 152835 0 0 0 5648 329 0 0 25 0 1 0 21572544 540639232 104981 4294967295 134512640 135987407 3221224560 3220800080 134856594 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8975/statm): 131992 104981 364 364 0 131628 0
[pid=8975] vsize: 527968
Current children cumulated CPU time (s) 59.77
Current children cumulated vsize (Kb) 527968

[startup+70.0071 s]
Raw data (loadavg): 0.96 0.94 0.93 2/55 8975
Raw data (/proc/8975/stat): 8975 (pb2sat) R 8974 8975 4060 0 -1 0 169522 0 0 0 6609 367 0 0 25 0 1 0 21572544 492720128 103001 4294967295 134512640 135987407 3221224560 3221147984 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8975/statm): 120293 103001 364 364 0 119929 0
[pid=8975] vsize: 481172
Current children cumulated CPU time (s) 69.76
Current children cumulated vsize (Kb) 481172

[startup+80.0079 s]
Raw data (loadavg): 0.97 0.94 0.93 2/55 8975
Raw data (/proc/8975/stat): 8975 (pb2sat) R 8974 8975 4060 0 -1 0 209671 0 0 0 7518 456 0 0 25 0 1 0 21572544 616497152 118362 4294967295 134512640 135987407 3221224560 3220981852 135481726 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8975/statm): 150512 118362 364 364 0 150148 0
[pid=8975] vsize: 602048
Current children cumulated CPU time (s) 79.74
Current children cumulated vsize (Kb) 602048

[startup+90.0076 s]
Raw data (loadavg): 0.97 0.94 0.93 2/55 8975
Raw data (/proc/8975/stat): 8975 (pb2sat) R 8974 8975 4060 0 -1 0 228754 0 0 0 8466 504 0 0 25 0 1 0 21572544 672309248 132723 4294967295 134512640 135987407 3221224560 3221222956 135482121 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8975/statm): 164138 132723 364 364 0 163774 0
[pid=8975] vsize: 656552
Current children cumulated CPU time (s) 89.7
Current children cumulated vsize (Kb) 656552

[startup+100.008 s]
Raw data (loadavg): 0.98 0.94 0.93 2/55 8975
Raw data (/proc/8975/stat): 8975 (pb2sat) R 8974 8975 4060 0 -1 0 241179 0 0 0 9432 536 0 0 25 0 1 0 21572544 706371584 145040 4294967295 134512640 135987407 3221224560 3220935940 135486835 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8975/statm): 172454 145040 364 364 0 172090 0
[pid=8975] vsize: 689816
Current children cumulated CPU time (s) 99.68
Current children cumulated vsize (Kb) 689816

[startup+110.009 s]
Raw data (loadavg): 0.98 0.94 0.93 2/55 8975
Raw data (/proc/8975/stat): 8975 (pb2sat) R 8974 8975 4060 0 -1 0 252008 0 0 0 10408 560 0 0 25 0 1 0 21572544 712048640 155614 4294967295 134512640 135987407 3221224560 3220917656 134855044 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8975/statm): 173840 155614 364 364 0 173476 0
[pid=8975] vsize: 695360
Current children cumulated CPU time (s) 109.68
Current children cumulated vsize (Kb) 695360

[startup+120.01 s]
Raw data (loadavg): 0.98 0.94 0.93 2/55 8975
Raw data (/proc/8975/stat): 8975 (pb2sat) R 8974 8975 4060 0 -1 0 261568 0 0 0 11386 581 0 0 25 0 1 0 21572544 722558976 164980 4294967295 134512640 135987407 3221224560 3221223240 135477314 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8975/statm): 176406 164980 364 364 0 176042 0
[pid=8975] vsize: 705624
Current children cumulated CPU time (s) 119.67
Current children cumulated vsize (Kb) 705624
One traced child (pid=8975) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 123.238
CPU time (s): 122.905
CPU user time (s): 116.761
CPU system time (s): 6.14406
CPU usage (%): 99.7298
Max. virtual memory (cumulated for all children) (Kb): 705624

Verifier Data

ERROR: no interpretation found !