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/miplib2003/normalized-mps-v2-20-10-msc98-ip.opb
MD5SUMb16b3be9013bb805347ce7c637f88389
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3088409400819991040
Optimality of the best value was proved NO
Number of terms in the objective function 7440
Biggest coefficient in the objective function 233453000000000000
Number of bits for the biggest coefficient in the objective function 58
Sum of the numbers in the objective function 7418790514839784695
Number of bits of the sum of numbers in the objective function 63
Biggest number in a constraint 233453000000000000
Number of bits of the biggest number in a constraint 58
Biggest sum of numbers in a constraint 7418790514839784695
Number of bits of the biggest sum of numbers63
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1211.45
Number of variables36105
Total number of constraints36969
Number of constraints which are clauses5133
Number of constraints which are cardinality constraints (but not clauses)20819
Number of constraints which are nor clauses,nor cardinality constraints11017
Minimum length of a constraint1
Maximum length of a constraint1209

Trace number 10033

Launcher Data

LAUNCH ON wulflinc1 THE 2005-09-23 16:37:40 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8786 boxname=wulflinc1 idbench=582 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  b16b3be9013bb805347ce7c637f88389  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-msc98-ip.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-msc98-ip.opb
IDLAUNCH: 8786
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.228
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		: 451.228
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:        879984 kB
Buffers:         13044 kB
Cached:         123704 kB
SwapCached:          0 kB
Active:          81964 kB
Inactive:        57712 kB
HighTotal:      131008 kB
HighFree:        10892 kB
LowTotal:       903652 kB
LowFree:        869092 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6988 kB
Slab:             9356 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:39:25 (client local time) WITH STATUS 0 IN 101.689 SECONDS
stats: 8786 7 101.689 0

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
s UNKNOWN

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/9631/stat): 9631 (pb2sat) R 9630 9631 4704 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21704063 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9631/statm): 373 2 364 364 0 9 0
[pid=9631] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-msc98-ip.opb

[startup+10.0021 s]
Raw data (loadavg): 0.87 0.94 0.95 2/55 9631
Raw data (/proc/9631/stat): 9631 (pb2sat) R 9630 9631 4704 0 -1 0 20332 0 0 0 955 40 0 0 25 0 1 0 21704063 67858432 12337 4294967295 134512640 135987407 3221224560 3221213824 134856632 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9631/statm): 16567 12337 364 364 0 16203 0
[pid=9631] vsize: 66268
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 66268

[startup+20.0029 s]
Raw data (loadavg): 0.89 0.94 0.95 2/55 9631
Raw data (/proc/9631/stat): 9631 (pb2sat) R 9630 9631 4704 0 -1 0 50727 0 0 0 1892 101 0 0 25 0 1 0 21704063 154656768 28437 4294967295 134512640 135987407 3221224560 3221214872 135487920 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9631/statm): 37758 28437 364 364 0 37394 0
[pid=9631] vsize: 151032
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 151032

[startup+30.0037 s]
Raw data (loadavg): 0.90 0.94 0.95 2/55 9631
Raw data (/proc/9631/stat): 9631 (pb2sat) R 9630 9631 4704 0 -1 0 77406 0 0 0 2833 158 0 0 25 0 1 0 21704063 237629440 45192 4294967295 134512640 135987407 3221224560 3221210396 135485001 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9631/statm): 58015 45192 364 364 0 57651 0
[pid=9631] vsize: 232060
Current children cumulated CPU time (s) 29.91
Current children cumulated vsize (Kb) 232060

[startup+40.0045 s]
Raw data (loadavg): 0.92 0.94 0.95 2/55 9631
Raw data (/proc/9631/stat): 9631 (pb2sat) R 9630 9631 4704 0 -1 0 101364 0 0 0 3780 211 0 0 25 0 1 0 21704063 324218880 56648 4294967295 134512640 135987407 3221224560 3221212924 134637029 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9631/statm): 79155 56648 364 364 0 78791 0
[pid=9631] vsize: 316620
Current children cumulated CPU time (s) 39.91
Current children cumulated vsize (Kb) 316620

[startup+50.0053 s]
Raw data (loadavg): 0.93 0.94 0.95 2/55 9631
Raw data (/proc/9631/stat): 9631 (pb2sat) R 9630 9631 4704 0 -1 0 115580 0 0 0 4747 244 0 0 25 0 1 0 21704063 330518528 70618 4294967295 134512640 135987407 3221224560 3221210764 135499903 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9631/statm): 80693 70618 364 364 0 80329 0
[pid=9631] vsize: 322772
Current children cumulated CPU time (s) 49.91
Current children cumulated vsize (Kb) 322772

[startup+60.0051 s]
Raw data (loadavg): 0.94 0.95 0.95 2/55 9631
Raw data (/proc/9631/stat): 9631 (pb2sat) R 9630 9631 4704 0 -1 0 155733 0 0 0 5666 321 0 0 25 0 1 0 21704063 456544256 91152 4294967295 134512640 135987407 3221224560 3221211616 134537540 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9631/statm): 111461 91152 364 364 0 111097 0
[pid=9631] vsize: 445844
Current children cumulated CPU time (s) 59.87
Current children cumulated vsize (Kb) 445844

[startup+70.0049 s]
Raw data (loadavg): 0.95 0.95 0.95 2/55 9631
Raw data (/proc/9631/stat): 9631 (pb2sat) R 9630 9631 4704 0 -1 0 192258 0 0 0 6591 395 0 0 25 0 1 0 21704063 561000448 102887 4294967295 134512640 135987407 3221224560 3221213468 135482124 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9631/statm): 136963 102887 364 364 0 136599 0
[pid=9631] vsize: 547852
Current children cumulated CPU time (s) 69.86
Current children cumulated vsize (Kb) 547852

[startup+80.0057 s]
Raw data (loadavg): 0.96 0.95 0.95 2/55 9631
Raw data (/proc/9631/stat): 9631 (pb2sat) R 9630 9631 4704 0 -1 0 203982 0 0 0 7566 420 0 0 25 0 1 0 21704063 598884352 114407 4294967295 134512640 135987407 3221224560 3221218608 135477294 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9631/statm): 146212 114407 364 364 0 145848 0
[pid=9631] vsize: 584848
Current children cumulated CPU time (s) 79.86
Current children cumulated vsize (Kb) 584848

[startup+90.0055 s]
Raw data (loadavg): 0.96 0.95 0.95 2/55 9631
Raw data (/proc/9631/stat): 9631 (pb2sat) R 9630 9631 4704 0 -1 0 217933 0 0 0 8540 446 0 0 25 0 1 0 21704063 602804224 128106 4294967295 134512640 135987407 3221224560 3221213296 134559311 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9631/statm): 147169 128106 364 364 0 146805 0
[pid=9631] vsize: 588676
Current children cumulated CPU time (s) 89.86
Current children cumulated vsize (Kb) 588676

[startup+100.006 s]
Raw data (loadavg): 0.97 0.95 0.95 2/55 9631
Raw data (/proc/9631/stat): 9631 (pb2sat) R 9630 9631 4704 0 -1 0 243357 0 0 0 9486 497 0 0 25 0 1 0 21704063 916549632 152905 4294967295 134512640 135987407 3221224560 3221209456 134856581 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9631/statm): 223767 152905 364 364 0 223403 0
[pid=9631] vsize: 895068
Current children cumulated CPU time (s) 99.83
Current children cumulated vsize (Kb) 895068



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+101.485 s]
Raw data (loadavg): 0.97 0.95 0.95 1/55 9631
Raw data (/proc/9631/stat): 9631 (pb2sat) T 9630 9631 4704 0 -1 0 260341 0 0 0 9600 529 0 0 25 0 1 0 21704063 943853568 169315 4294967295 134512640 135987407 3221224560 3221209180 135635874 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/9631/statm): 230433 169315 364 364 0 230069 0
[pid=9631] vsize: 921732
Current children cumulated CPU time (s) 101.29
Current children cumulated vsize (Kb) 921732

Sending SIGTERM to -9631
Sleeping 2 seconds
Sending SIGKILL to -9631
One traced child (pid=9631) ended because it received signal 9 (SIGKILL)
All traced children have exited ! Game is over.

Child ended because it received signal 9 (SIGKILL)
Real time (s): 103.834
CPU time (s): 101.689
CPU user time (s): 96.0524
CPU system time (s): 5.63614
CPU usage (%): 97.9338
Max. virtual memory (cumulated for all children) (Kb): 921732

Verifier Data

ERROR: no interpretation found !