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/MIPLIB/miplib3/normalized-mps-v2-13-7-markshare1.opb
MD5SUMba87f5dfbaed559dc55bc00bf07dc880
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3712
Optimality of the best value was proved NO
Number of terms in the objective function 120
Biggest coefficient in the objective function 524288
Number of bits for the biggest coefficient in the objective function 20
Sum of the numbers in the objective function 6291450
Number of bits of the sum of numbers in the objective function 23
Biggest number in a constraint 524288
Number of bits of the biggest number in a constraint 20
Biggest sum of numbers in a constraint 6291450
Number of bits of the biggest sum of numbers23
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1175.68
Number of variables170
Total number of constraints56
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)50
Number of constraints which are nor clauses,nor cardinality constraints6
Minimum length of a constraint1
Maximum length of a constraint70

Trace number 27053 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc17 THE 2005-05-24 19:13:20 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=18501 boxname=wulflinc17 idbench=1424 idsolver=2 numberseed=0
MD5SUM SOLVER: 754786be69defe53c030aa54f111e0a7  /oldhome/oroussel/solvers/bsolo_lpr_cuts
MD5SUM BENCH:  ba87f5dfbaed559dc55bc00bf07dc880  /oldhome/oroussel/tmp/wulflinc17/normalized-mps-v2-13-7-markshare1.opb
REAL COMMAND:  bsolo_lpr_cuts /oldhome/oroussel/tmp/wulflinc17/normalized-mps-v2-13-7-markshare1.opb
IDLAUNCH: 18501
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.072
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	: 3
cpu MHz		: 451.072
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:        889632 kB
Buffers:          3076 kB
Cached:         119728 kB
SwapCached:        480 kB
Active:          35840 kB
Inactive:        89668 kB
HighTotal:      131008 kB
HighFree:        15316 kB
LowTotal:       903652 kB
LowFree:        874316 kB
SwapTotal:     2097892 kB
SwapFree:      2097148 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6044 kB
Slab:            13760 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-24 19:15:48 (client local time) WITH STATUS 0 IN 147.32 SECONDS
stats: 18501 7 147.32 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 170 variables and 12 constraints.
c After prepocess the problem consists of 158 variables and 12 constraints.
c preprocess terminated 0.086 s
c Initial Lower Bound: 0
c Lower Bound Elapsed time: 0.015
c Use computed LB before first solution.
c NEW SOLUTION FOUND: 111616 @ 0.28
c NEW SOLUTION FOUND: 74752 @ 0.282
c NEW SOLUTION FOUND: 49024 @ 0.306
c NEW SOLUTION FOUND: 39680 @ 0.308
c NEW SOLUTION FOUND: 21632 @ 0.401
c NEW SOLUTION FOUND: 15872 @ 1.651
c NEW SOLUTION FOUND: 13312 @ 2.05
#### 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 0.94 0.90 2/54 11623
Raw data (stat): 11623 (runsolver) R 11622 7475 7474 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 832681133 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+10.0005 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 11623
Raw data (stat): 11623 (bsolo_lpr_cuts) R 11622 7475 7474 0 -1 0 7859 0 0 0 968 29 0 0 25 0 1 0 832681133 10792960 1921 4294967295 134512640 134714508 3221224576 3221222784 1074153770 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 2635 1921 1111 63 0 2572 0
vsize: 10540
[startup+20.0007 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 11623
Raw data (stat): 11623 (bsolo_lpr_cuts) R 11622 7475 7474 0 -1 0 16589 0 0 0 1940 58 0 0 25 0 1 0 832681133 15577088 3091 4294967295 134512640 134714508 3221224576 3221220848 1074961635 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 3803 3091 1111 63 0 3740 0
vsize: 15212
[startup+30.0017 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 11623
Raw data (stat): 11623 (bsolo_lpr_cuts) R 11622 7475 7474 0 -1 0 24301 0 0 0 2915 83 0 0 25 0 1 0 832681133 19529728 4056 4294967295 134512640 134714508 3221224576 3221220736 1075095166 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4768 4056 1111 63 0 4705 0
vsize: 19072
[startup+40.0012 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 11623
Raw data (stat): 11623 (bsolo_lpr_cuts) R 11622 7475 7474 0 -1 0 32949 0 0 0 3882 116 0 0 25 0 1 0 832681133 24641536 5289 4294967295 134512640 134714508 3221224576 3221223368 134542412 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 6016 5289 1111 63 0 5953 0
vsize: 24064
[startup+50.0005 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 11623
Raw data (stat): 11623 (bsolo_lpr_cuts) R 11622 7475 7474 0 -1 0 40990 0 0 0 4853 145 0 0 25 0 1 0 832681133 29941760 6608 4294967295 134512640 134714508 3221224576 3221223008 134535391 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 7310 6608 1111 63 0 7247 0
vsize: 29240
[startup+60.0004 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 11623
Raw data (stat): 11623 (bsolo_lpr_cuts) R 11622 7475 7474 0 -1 0 47775 0 0 0 5834 164 0 0 25 0 1 0 832681133 34136064 7567 4294967295 134512640 134714508 3221224576 3221220784 1074815500 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 8334 7567 1111 63 0 8271 0
vsize: 33336
[startup+70 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 11623
Raw data (stat): 11623 (bsolo_lpr_cuts) R 11622 7475 7474 0 -1 0 55863 0 0 0 6814 184 0 0 25 0 1 0 832681133 34938880 7821 4294967295 134512640 134714508 3221224576 3221221856 1074140041 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 8530 7821 1111 63 0 8467 0
vsize: 34120
[startup+80.0004 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 11623
Raw data (stat): 11623 (bsolo_lpr_cuts) R 11622 7475 7474 0 -1 0 65931 0 0 0 7792 207 0 0 25 0 1 0 832681133 36786176 8206 4294967295 134512640 134714508 3221224576 3221220736 1075095166 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 8981 8206 1111 63 0 8918 0
vsize: 35924
[startup+90.0002 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 11623
Raw data (stat): 11623 (bsolo_lpr_cuts) R 11622 7475 7474 0 -1 0 81641 0 0 0 8755 244 0 0 25 0 1 0 832681133 39022592 8831 4294967295 134512640 134714508 3221224576 3221222876 1077781665 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 9527 8831 1111 63 0 9464 0
vsize: 38108
[startup+99.9998 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 11623
Raw data (stat): 11623 (bsolo_lpr_cuts) R 11622 7475 7474 0 -1 0 93819 0 0 0 9725 274 0 0 25 0 1 0 832681133 41660416 9412 4294967295 134512640 134714508 3221224576 3221220548 1074786476 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 10171 9412 1111 63 0 10108 0
vsize: 40684
[startup+110 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 11623
Raw data (stat): 11623 (bsolo_lpr_cuts) R 11622 7475 7474 0 -1 0 104941 0 0 0 10698 301 0 0 25 0 1 0 832681133 43495424 9918 4294967295 134512640 134714508 3221224576 3221222576 1074918597 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 10619 9918 1111 63 0 10556 0
vsize: 42476
[startup+120 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 11623
Raw data (stat): 11623 (bsolo_lpr_cuts) R 11622 7475 7474 0 -1 0 119402 0 0 0 11659 341 0 0 25 0 1 0 832681133 46149632 10527 4294967295 134512640 134714508 3221224576 3221222560 1074052738 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 11267 10527 1111 63 0 11204 0
vsize: 45068
[startup+130.001 s]
Raw data (loadavg): 0.99 0.95 0.91 2/54 11623
Raw data (stat): 11623 (bsolo_lpr_cuts) R 11622 7475 7474 0 -1 0 137241 0 0 0 12612 387 0 0 25 0 1 0 832681133 49750016 11432 4294967295 134512640 134714508 3221224576 3221223004 1077781665 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 12146 11432 1111 63 0 12083 0
vsize: 48584
[startup+140.001 s]
Raw data (loadavg): 0.99 0.95 0.91 2/54 11623
Raw data (stat): 11623 (bsolo_lpr_cuts) R 11622 7475 7474 0 -1 0 159475 0 0 0 13555 445 0 0 25 0 1 0 832681133 56537088 12875 4294967295 134512640 134714508 3221224576 3221221108 1074260679 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 13714 12872 1111 63 0 13651 0
vsize: 55212
[startup+147.312 s]
Raw data (loadavg): 0.99 0.95 0.91 1/53 11623
Raw data (stat): 11623 (bsolo_lpr_cuts) R 11622 7475 7474 0 -1 0 159475 0 0 0 13555 445 0 0 25 0 1 0 832681133 56537088 12875 4294967295 134512640 134714508 3221224576 3221221108 1074260679 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 13714 12872 1111 63 0 13651 0
vsize: 0

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 147.311
CPU time (s): 147.32
CPU user time (s): 142.433
CPU system time (s): 4.88626
CPU usage (%): 100.006
Max. virtual memory (Kb): 55212
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####