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-v2-20-10/MIPLIB/miplib3/normalized-mps-v2-20-10-lseu.opb
MD5SUM99657262afbbfce7034a3ec6b29d9b3b
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1120
Optimality of the best value was proved NO
Number of terms in the objective function 85
Biggest coefficient in the objective function 517
Number of bits for the biggest coefficient in the objective function 10
Sum of the numbers in the objective function 15494
Number of bits of the sum of numbers in the objective function 14
Biggest number in a constraint 1656
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 15494
Number of bits of the biggest sum of numbers14
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.02984
Number of variables89
Total number of constraints117
Number of constraints which are clauses2
Number of constraints which are cardinality constraints (but not clauses)104
Number of constraints which are nor clauses,nor cardinality constraints11
Minimum length of a constraint1
Maximum length of a constraint47

Trace number 28262 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc24 THE 2005-05-25 01:37:25 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=13496 boxname=wulflinc24 idbench=1039 idsolver=2 numberseed=0
MD5SUM SOLVER: 754786be69defe53c030aa54f111e0a7  /oldhome/oroussel/solvers/bsolo_lpr_cuts
MD5SUM BENCH:  99657262afbbfce7034a3ec6b29d9b3b  /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-lseu.opb
REAL COMMAND:  bsolo_lpr_cuts /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-lseu.opb
IDLAUNCH: 13496
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.080
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		: 451.080
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:        753000 kB
Buffers:         10392 kB
Cached:         248884 kB
SwapCached:        620 kB
Active:          31988 kB
Inactive:       229700 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        752748 kB
SwapTotal:     2097892 kB
SwapFree:      2096776 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           5656 kB
Slab:            14172 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-25 01:39:51 (client local time) WITH STATUS 0 IN 146.099 SECONDS
stats: 13496 7 146.099 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 89 variables and 28 constraints.
c After prepocess the problem consists of 89 variables and 28 constraints.
c preprocess terminated 0.069 s
c Initial Lower Bound: 777
c Lower Bound Elapsed time: 0.01
c Use computed LB before first solution.
c NEW SOLUTION FOUND: 3184 @ 1.334
c NEW SOLUTION FOUND: 3074 @ 1.347
c NEW SOLUTION FOUND: 2879 @ 1.38
c NEW SOLUTION FOUND: 2798 @ 1.443
c NEW SOLUTION FOUND: 2783 @ 1.468
c NEW SOLUTION FOUND: 2681 @ 1.515
c NEW SOLUTION FOUND: 2471 @ 1.528
c NEW SOLUTION FOUND: 2451 @ 2.673
c NEW SOLUTION FOUND: 2393 @ 25.612
c NEW SOLUTION FOUND: 2377 @ 27.439
c NEW SOLUTION FOUND: 2307 @ 39.494
c NEW SOLUTION FOUND: 2283 @ 39.511
c NEW SOLUTION FOUND: 2213 @ 50.779
#### 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
Raw data (loadavg): 0.91 0.97 0.93 2/54 11675
Raw data (stat): 11675 (runsolver) R 11674 4613 4612 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 834971538 1052672 99 4294967295 134512640 135381576 3221224480 3221219692 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.0004 s]
Raw data (loadavg): 0.93 0.97 0.93 2/54 11675
Raw data (stat): 11675 (bsolo_lpr_cuts) R 11674 4613 4612 0 -1 0 9725 0 0 0 960 37 0 0 25 0 1 0 834971538 11812864 2198 4294967295 134512640 134714508 3221224592 3221223036 1077781665 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 2940 2199 1111 63 0 2877 0
vsize: 11536
[startup+20.0016 s]
Raw data (loadavg): 0.94 0.97 0.93 2/54 11675
Raw data (stat): 11675 (bsolo_lpr_cuts) R 11674 4613 4612 0 -1 0 28901 0 0 0 1902 95 0 0 25 0 1 0 834971538 16494592 3301 4294967295 134512640 134714508 3221224592 3221221484 1077386340 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4064 3303 1111 63 0 4001 0
vsize: 16108
[startup+30.0019 s]
Raw data (loadavg): 0.95 0.97 0.93 2/54 11675
Raw data (stat): 11675 (bsolo_lpr_cuts) R 11674 4613 4612 0 -1 0 54682 0 0 0 2842 155 0 0 25 0 1 0 834971538 18354176 3801 4294967295 134512640 134714508 3221224592 3221222808 1074153504 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 4481 3801 1111 63 0 4418 0
vsize: 17924
[startup+40.0015 s]
Raw data (loadavg): 0.95 0.97 0.93 2/54 11675
Raw data (stat): 11675 (bsolo_lpr_cuts) R 11674 4613 4612 0 -1 0 71420 0 0 0 3803 194 0 0 25 0 1 0 834971538 20746240 4121 4294967295 134512640 134714508 3221224592 3221221612 1074950644 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5065 4128 1111 63 0 5002 0
vsize: 20260
[startup+50.0014 s]
Raw data (loadavg): 0.96 0.97 0.93 2/54 11675
Raw data (stat): 11675 (bsolo_lpr_cuts) R 11674 4613 4612 0 -1 0 103501 0 0 0 4732 265 0 0 25 0 1 0 834971538 21708800 4611 4294967295 134512640 134714508 3221224592 3221223036 1077781665 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5300 4611 1111 63 0 5237 0
vsize: 21200
[startup+60.0018 s]
Raw data (loadavg): 0.97 0.97 0.93 2/54 11675
Raw data (stat): 11675 (bsolo_lpr_cuts) R 11674 4613 4612 0 -1 0 114915 0 0 0 5707 289 0 0 25 0 1 0 834971538 23601152 4890 4294967295 134512640 134714508 3221224592 3221220800 1076079346 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5762 4890 1111 63 0 5699 0
vsize: 23048
[startup+70.0025 s]
Raw data (loadavg): 0.97 0.97 0.93 2/54 11675
Raw data (stat): 11675 (bsolo_lpr_cuts) R 11674 4613 4612 0 -1 0 129812 0 0 0 6673 324 0 0 25 0 1 0 834971538 23158784 4979 4294967295 134512640 134714508 3221224592 3221222704 1074867317 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5654 4979 1111 63 0 5591 0
vsize: 22616
[startup+80.0028 s]
Raw data (loadavg): 0.98 0.97 0.93 2/54 11675
Raw data (stat): 11675 (bsolo_lpr_cuts) R 11674 4613 4612 0 -1 0 146615 0 0 0 7631 365 0 0 25 0 1 0 834971538 24977408 5206 4294967295 134512640 134714508 3221224592 3221220960 1075894538 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 6098 5206 1111 63 0 6035 0
vsize: 24392
[startup+90.0029 s]
Raw data (loadavg): 0.98 0.97 0.93 2/54 11675
Raw data (stat): 11675 (bsolo_lpr_cuts) R 11674 4613 4612 0 -1 0 186456 0 0 0 8543 454 0 0 25 0 1 0 834971538 26988544 5881 4294967295 134512640 134714508 3221224592 3221223168 134542350 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 6589 5881 1111 63 0 6526 0
vsize: 26356
[startup+100.003 s]
Raw data (loadavg): 0.98 0.97 0.93 2/54 11675
Raw data (stat): 11675 (bsolo_lpr_cuts) R 11674 4613 4612 0 -1 0 227713 0 0 0 9447 550 0 0 25 0 1 0 834971538 30625792 6751 4294967295 134512640 134714508 3221224592 3221223516 1077781665 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 7477 6751 1111 63 0 7414 0
vsize: 29908
[startup+110.004 s]
Raw data (loadavg): 0.98 0.97 0.93 2/54 11675
Raw data (stat): 11675 (bsolo_lpr_cuts) R 11674 4613 4612 0 -1 0 263902 0 0 0 10366 632 0 0 25 0 1 0 834971538 34353152 7618 4294967295 134512640 134714508 3221224592 3221223516 1077781665 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 8387 7618 1111 63 0 8324 0
vsize: 33548
[startup+120.004 s]
Raw data (loadavg): 0.99 0.97 0.93 2/54 11675
Raw data (stat): 11675 (bsolo_lpr_cuts) R 11674 4613 4612 0 -1 0 291899 0 0 0 11306 691 0 0 25 0 1 0 834971538 36352000 8105 4294967295 134512640 134714508 3221224592 3221222896 1074153792 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 8875 8105 1111 63 0 8812 0
vsize: 35500
[startup+130.004 s]
Raw data (loadavg): 0.99 0.97 0.93 2/54 11675
Raw data (stat): 11675 (bsolo_lpr_cuts) R 11674 4613 4612 0 -1 0 310078 0 0 0 12265 733 0 0 25 0 1 0 834971538 38428672 8374 4294967295 134512640 134714508 3221224592 3221220752 1075091317 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 9382 8374 1111 63 0 9319 0
vsize: 37528
[startup+140.004 s]
Raw data (loadavg): 0.99 0.97 0.93 2/54 11675
Raw data (stat): 11675 (bsolo_lpr_cuts) R 11674 4613 4612 0 -1 0 316354 0 0 0 13248 749 0 0 25 0 1 0 834971538 40783872 9125 4294967295 134512640 134714508 3221224592 3221221360 1076083615 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 9957 9125 1111 63 0 9894 0
vsize: 39828
[startup+146.115 s]
Raw data (loadavg): 0.99 0.97 0.93 1/53 11675
Raw data (stat): 11675 (bsolo_lpr_cuts) R 11674 4613 4612 0 -1 0 316354 0 0 0 13248 749 0 0 25 0 1 0 834971538 40783872 9125 4294967295 134512640 134714508 3221224592 3221221360 1076083615 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 9957 9125 1111 63 0 9894 0
vsize: 0

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 146.114
CPU time (s): 146.099
CPU user time (s): 138.373
CPU system time (s): 7.72583
CPU usage (%): 99.9895
Max. virtual memory (Kb): 39828
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####