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-v2-13-7/MIPLIB/miplib2003/normalized-mps-v2-13-7-rd-rplusc-21.opb
MD5SUM62166f7982a2b3c488537a2a2dbe4149
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 35
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 3735451
Number of bits of the sum of numbers in the objective function 22
Biggest number in a constraint 383602153706972160
Number of bits of the biggest number in a constraint 59
Biggest sum of numbers in a constraint 772928706545624815
Number of bits of the biggest sum of numbers60
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark290.495
Number of variables2644
Total number of constraints126450
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)699
Number of constraints which are nor clauses,nor cardinality constraints125751
Minimum length of a constraint1
Maximum length of a constraint130

Trace number 6603

Launcher Data

LAUNCH ON wulflinc21 THE 2005-09-20 08:12:13 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=4495 boxname=wulflinc21 idbench=979 idsolver=4 numberseed=0
MD5SUM SOLVER: 21c3ffd7205c96d5f0784fd273b92938  /oldhome/oroussel/solvers/PBS4
MD5SUM BENCH:  62166f7982a2b3c488537a2a2dbe4149  /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-13-7-rd-rplusc-21.opb
REAL COMMAND:  PBS4 /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-13-7-rd-rplusc-21.opb
IDLAUNCH: 4495
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.161
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		: 451.161
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:        629108 kB
Buffers:         35328 kB
Cached:         339880 kB
SwapCached:        832 kB
Active:         258536 kB
Inactive:       119228 kB
HighTotal:      131008 kB
HighFree:         3780 kB
LowTotal:       903652 kB
LowFree:        625328 kB
SwapTotal:     2097892 kB
SwapFree:      2096456 kB
Dirty:               4 kB
Writeback:           0 kB
Mapped:           5776 kB
Slab:            21988 kB
Committed_AS:    64368 kB
PageTables:        340 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-20 08:14:38 (client local time) WITH STATUS 20 IN 140.903 SECONDS
stats: 4495 7 140.903 20

Solver Data

c PBS v4 by Bashar Al-Rawi & Fadi Aloul
c Solving /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-13-7-rd-rplusc-21.opb ......
s UNSATISFIABLE
c Done, CPU Time=0.088987

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/15240/stat): 15240 (PBS4) R 15239 15240 20602 0 -1 0 18 0 0 0 0 0 0 0 21 0 1 0 1734271162 978944 2 4294967295 134512640 135450776 3221224560 3221224560 134512960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/15240/statm): 239 2 232 232 0 7 0
[pid=15240] vsize: 956
open syscall for file /dev/null
open syscall for file /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-13-7-rd-rplusc-21.opb
open syscall for file /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-13-7-rd-rplusc-21.opb

[startup+10.0028 s]
Raw data (loadavg): 0.94 0.93 0.92 2/57 15240
Raw data (/proc/15240/stat): 15240 (PBS4) R 15239 15240 20602 0 -1 0 4791 0 0 0 971 20 0 0 25 0 1 0 1734271162 20033536 4547 4294967295 134512640 135450776 3221224560 3221223072 134855247 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/15240/statm): 4891 4547 232 232 0 4659 0
[pid=15240] vsize: 19564
Current children cumulated CPU time (s) 9.91
Current children cumulated vsize (Kb) 19564

[startup+20.0035 s]
Raw data (loadavg): 0.95 0.93 0.92 2/57 15240
Raw data (/proc/15240/stat): 15240 (PBS4) R 15239 15240 20602 0 -1 0 9399 0 0 0 1944 41 0 0 25 0 1 0 1734271162 38383616 8898 4294967295 134512640 135450776 3221224560 3221223072 134600038 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/15240/statm): 9371 8898 232 232 0 9139 0
[pid=15240] vsize: 37484
Current children cumulated CPU time (s) 19.85
Current children cumulated vsize (Kb) 37484

[startup+30.0032 s]
Raw data (loadavg): 0.96 0.93 0.92 2/57 15240
Raw data (/proc/15240/stat): 15240 (PBS4) R 15239 15240 20602 0 -1 0 9603 0 0 0 2930 51 0 0 25 0 1 0 1734271162 38383616 9102 4294967295 134512640 135450776 3221224560 3221223056 134524210 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/15240/statm): 9371 9102 232 232 0 9139 0
[pid=15240] vsize: 37484
Current children cumulated CPU time (s) 29.81
Current children cumulated vsize (Kb) 37484

[startup+40.0029 s]
Raw data (loadavg): 0.96 0.93 0.92 2/57 15240
Raw data (/proc/15240/stat): 15240 (PBS4) R 15239 15240 20602 0 -1 0 17201 0 0 0 3898 76 0 0 25 0 1 0 1734271162 68866048 16187 4294967295 134512640 135450776 3221224560 3221222932 134524520 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/15240/statm): 16813 16187 232 232 0 16581 0
[pid=15240] vsize: 67252
Current children cumulated CPU time (s) 39.74
Current children cumulated vsize (Kb) 67252

[startup+50.0035 s]
Raw data (loadavg): 0.97 0.93 0.92 2/57 15240
Raw data (/proc/15240/stat): 15240 (PBS4) R 15239 15240 20602 0 -1 0 17337 0 0 0 4884 86 0 0 25 0 1 0 1734271162 68866048 16323 4294967295 134512640 135450776 3221224560 3221222992 134527082 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/15240/statm): 16813 16323 232 232 0 16581 0
[pid=15240] vsize: 67252
Current children cumulated CPU time (s) 49.7
Current children cumulated vsize (Kb) 67252

[startup+60.0032 s]
Raw data (loadavg): 0.97 0.94 0.92 2/57 15240
Raw data (/proc/15240/stat): 15240 (PBS4) R 15239 15240 20602 0 -1 0 18084 0 0 0 5866 98 0 0 25 0 1 0 1734271162 71438336 17070 4294967295 134512640 135450776 3221224560 3221222932 134524558 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/15240/statm): 17441 17070 232 232 0 17209 0
[pid=15240] vsize: 69764
Current children cumulated CPU time (s) 59.64
Current children cumulated vsize (Kb) 69764

[startup+70.0039 s]
Raw data (loadavg): 0.98 0.94 0.92 2/57 15240
Raw data (/proc/15240/stat): 15240 (PBS4) R 15239 15240 20602 0 -1 0 20213 0 0 0 6845 113 0 0 25 0 1 0 1734271162 79548416 19199 4294967295 134512640 135450776 3221224560 3221223072 134600478 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/15240/statm): 19421 19199 232 232 0 19189 0
[pid=15240] vsize: 77684
Current children cumulated CPU time (s) 69.58
Current children cumulated vsize (Kb) 77684

[startup+80.0046 s]
Raw data (loadavg): 0.98 0.94 0.92 2/57 15240
Raw data (/proc/15240/stat): 15240 (PBS4) R 15239 15240 20602 0 -1 0 35626 0 0 0 7800 151 0 0 25 0 1 0 1734271162 142135296 33587 4294967295 134512640 135450776 3221224560 3221223148 134675440 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/15240/statm): 34701 33587 232 232 0 34469 0
[pid=15240] vsize: 138804
Current children cumulated CPU time (s) 79.51
Current children cumulated vsize (Kb) 138804

[startup+90.0043 s]
Raw data (loadavg): 0.98 0.94 0.92 2/57 15240
Raw data (/proc/15240/stat): 15240 (PBS4) R 15239 15240 20602 0 -1 0 35762 0 0 0 8784 161 0 0 25 0 1 0 1734271162 142135296 33723 4294967295 134512640 135450776 3221224560 3221223056 134524234 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/15240/statm): 34701 33723 232 232 0 34469 0
[pid=15240] vsize: 138804
Current children cumulated CPU time (s) 89.45
Current children cumulated vsize (Kb) 138804

[startup+100.005 s]
Raw data (loadavg): 0.98 0.94 0.92 2/57 15240
Raw data (/proc/15240/stat): 15240 (PBS4) R 15239 15240 20602 0 -1 0 35897 0 0 0 9766 174 0 0 25 0 1 0 1734271162 142135296 33858 4294967295 134512640 135450776 3221224560 3221222932 134524541 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/15240/statm): 34701 33858 232 232 0 34469 0
[pid=15240] vsize: 138804
Current children cumulated CPU time (s) 99.4
Current children cumulated vsize (Kb) 138804

[startup+110.006 s]
Raw data (loadavg): 0.99 0.94 0.92 2/57 15240
Raw data (/proc/15240/stat): 15240 (PBS4) R 15239 15240 20602 0 -1 0 36033 0 0 0 10748 187 0 0 25 0 1 0 1734271162 142135296 33994 4294967295 134512640 135450776 3221224560 3221223056 134524174 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/15240/statm): 34701 33994 232 232 0 34469 0
[pid=15240] vsize: 138804
Current children cumulated CPU time (s) 109.35
Current children cumulated vsize (Kb) 138804

[startup+120.006 s]
Raw data (loadavg): 0.99 0.94 0.92 2/57 15240
Raw data (/proc/15240/stat): 15240 (PBS4) R 15239 15240 20602 0 -1 0 36168 0 0 0 11732 198 0 0 25 0 1 0 1734271162 142135296 34129 4294967295 134512640 135450776 3221224560 3221222932 134524475 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/15240/statm): 34701 34129 232 232 0 34469 0
[pid=15240] vsize: 138804
Current children cumulated CPU time (s) 119.3
Current children cumulated vsize (Kb) 138804

[startup+130.006 s]
Raw data (loadavg): 0.99 0.95 0.92 2/57 15240
Raw data (/proc/15240/stat): 15240 (PBS4) R 15239 15240 20602 0 -1 0 37516 0 0 0 12715 209 0 0 25 0 1 0 1734271162 147136512 35477 4294967295 134512640 135450776 3221224560 3221222932 134524475 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/15240/statm): 35922 35477 232 232 0 35690 0
[pid=15240] vsize: 143688
Current children cumulated CPU time (s) 129.24
Current children cumulated vsize (Kb) 143688

[startup+140.006 s]
Raw data (loadavg): 0.99 0.95 0.92 2/57 15240
Raw data (/proc/15240/stat): 15240 (PBS4) R 15239 15240 20602 0 -1 0 39641 0 0 0 13693 225 0 0 25 0 1 0 1734271162 155250688 37602 4294967295 134512640 135450776 3221224560 3221223036 135084757 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/15240/statm): 37903 37602 232 232 0 37671 0
[pid=15240] vsize: 151612
Current children cumulated CPU time (s) 139.18
Current children cumulated vsize (Kb) 151612
One traced child (pid=15240) exited with status: 20
All traced children have exited ! Game is over.

Child status: 20
Real time (s): 141.727
CPU time (s): 140.903
CPU user time (s): 138.558
CPU system time (s): 2.34464
CPU usage (%): 99.4181
Max. virtual memory (cumulated for all children) (Kb): 151612

Verifier Data

ERROR: no interpretation found !