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/miplib/normalized-mps-v2-20-10-pipex.opb
MD5SUMb9c1029cc1d97a8d60e984f96f5d3267
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 788263
Optimality of the best value was proved NO
Number of terms in the objective function 48
Biggest coefficient in the objective function 107865
Number of bits for the biggest coefficient in the objective function 17
Sum of the numbers in the objective function 2514082
Number of bits of the sum of numbers in the objective function 22
Biggest number in a constraint 107865
Number of bits of the biggest number in a constraint 17
Biggest sum of numbers in a constraint 2514082
Number of bits of the biggest sum of numbers22
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.02184
Number of variables48
Total number of constraints73
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)64
Number of constraints which are nor clauses,nor cardinality constraints9
Minimum length of a constraint1
Maximum length of a constraint16

Trace number 41084 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-06-09 05:43:56 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=29155 boxname=wulflinc1 idbench=939 idsolver=21 numberseed=0
MD5SUM SOLVER: 174a32271cb3bba0a277d6d7724e60fb  /oldhome/oroussel/solvers/bsolo_lpr_cuts-v2
MD5SUM BENCH:  b9c1029cc1d97a8d60e984f96f5d3267  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-pipex.opb
REAL COMMAND:  bsolo_lpr_cuts-v2 /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-pipex.opb
IDLAUNCH: 29155
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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		: 451.053
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:        807992 kB
Buffers:         25444 kB
Cached:         177372 kB
SwapCached:       1184 kB
Active:          37808 kB
Inactive:       167164 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        807740 kB
SwapTotal:     2097136 kB
SwapFree:      2094812 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           5260 kB
Slab:            16020 kB
Committed_AS:    92720 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-09 05:46:08 (client local time) WITH STATUS 30 IN 131.307 SECONDS
stats: 29155 0 131.307 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 48 variables and 41 constraints.
c After prepocess the problem consists of 48 variables and 41 constraints.
c preprocess terminated 0.057 s
c Initial Lower Bound: 773752
c Lower Bound Elapsed time: 0.012
c Use computed LB before first solution.
c NEW SOLUTION FOUND: 802321 @ 0.607
c NEW SOLUTION FOUND: 794954 @ 40.387
c NEW SOLUTION FOUND: 791277 @ 96.823
c NEW SOLUTION FOUND: 788385 @ 99.862
c NEW SOLUTION FOUND: 788263 @ 122.874
s OPTIMUM FOUND
v QUAN0101_bit0 QUAN0102_bit0 -QUAN0103_bit0 -QUAN0104_bit0 -QUAN0105_bit0 -QUAN0106_bit0 -QUAN0107_bit0 -QUAN0108_bit0 -QUAN0109_bit0 -QUAN0110_bit0 QUAN0111_bit0 -QUAN0112_bit0 QUAN0113_bit0 -QUAN0114_bit0 -QUAN0115_bit0 -QUAN0116_bit0 -QUAN0201_bit0 -QUAN0202_bit0 -QUAN0203_bit0 -QUAN0204_bit0 -QUAN0205_bit0 -QUAN0206_bit0 QUAN0207_bit0 QUAN0208_bit0 -QUAN0209_bit0 -QUAN0210_bit0 -QUAN0211_bit0 QUAN0212_bit0 -QUAN0213_bit0 QUAN0214_bit0 QUAN0215_bit0 QUAN0216_bit0 -QUAN0301_bit0 -QUAN0302_bit0 QUAN0303_bit0 QUAN0304_bit0 QUAN0305_bit0 QUAN0306_bit0 -QUAN0307_bit0 -QUAN0308_bit0 QUAN0309_bit0 QUAN0310_bit0 -QUAN0311_bit0 -QUAN0312_bit0 -QUAN0313_bit0 -QUAN0314_bit0 -QUAN0315_bit0 -QUAN0316_bit0 
c Exit Code: 30
c Total time: 131.29 s
#### 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
Enforcing Stack size limit: 67108864 bytes
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.92 0.95 0.90 2/55 31771
Raw data (stat): 31771 (runsolver) R 31770 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 850992262 884736 94 4294967295 134512640 135332820 3221224448 3221219628 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0005 s]
Raw data (loadavg): 0.93 0.96 0.91 2/55 31771
Raw data (stat): 31771 (bsolo_lpr_cuts-) R 31770 8378 8377 0 -1 0 6668 0 0 0 967 30 0 0 25 0 1 0 850992262 8241152 1327 4294967295 134512640 134716908 3221224560 3221222288 1075828535 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 2012 1327 1111 63 0 1949 0
vsize: 8048
[startup+20.0013 s]
Raw data (loadavg): 0.94 0.96 0.91 2/55 31771
Raw data (stat): 31771 (bsolo_lpr_cuts-) R 31770 8378 8377 0 -1 0 13665 0 0 0 1940 58 0 0 25 0 1 0 850992262 9863168 1718 4294967295 134512640 134716908 3221224560 3221222956 1077781665 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 2408 1718 1111 63 0 2345 0
vsize: 9632
[startup+30.0011 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 31771
Raw data (stat): 31771 (bsolo_lpr_cuts-) R 31770 8378 8377 0 -1 0 22388 0 0 0 2916 82 0 0 25 0 1 0 850992262 11124736 2030 4294967295 134512640 134716908 3221224560 3221222412 1077377655 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 2716 2030 1111 63 0 2653 0
vsize: 10864
[startup+40.0009 s]
Raw data (loadavg): 0.96 0.96 0.91 2/55 31771
Raw data (stat): 31771 (bsolo_lpr_cuts-) R 31770 8378 8377 0 -1 0 41315 0 0 0 3866 132 0 0 25 0 1 0 850992262 12689408 2334 4294967295 134512640 134716908 3221224560 3221221680 1074836841 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 3017 2331 1111 63 0 2954 0
vsize: 12392
[startup+50.0006 s]
Raw data (loadavg): 0.96 0.96 0.91 2/55 31771
Raw data (stat): 31771 (bsolo_lpr_cuts-) R 31770 8378 8377 0 -1 0 52537 0 0 0 4839 158 0 0 25 0 1 0 850992262 13529088 2539 4294967295 134512640 134716908 3221224560 3221220508 1074788943 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 3303 2539 1111 63 0 3240 0
vsize: 13212
[startup+60.0018 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 31771
Raw data (stat): 31771 (bsolo_lpr_cuts-) R 31770 8378 8377 0 -1 0 67511 0 0 0 5801 197 0 0 25 0 1 0 850992262 14254080 2727 4294967295 134512640 134716908 3221224560 3221220720 1075091287 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 3480 2727 1111 63 0 3417 0
vsize: 13920
[startup+70.0022 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 31771
Raw data (stat): 31771 (bsolo_lpr_cuts-) R 31770 8378 8377 0 -1 0 84723 0 0 0 6758 240 0 0 25 0 1 0 850992262 15069184 2953 4294967295 134512640 134716908 3221224560 3221222800 1074153601 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 3679 2953 1111 63 0 3616 0
vsize: 14716
[startup+80.002 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 31771
Raw data (stat): 31771 (bsolo_lpr_cuts-) R 31770 8378 8377 0 -1 0 100979 0 0 0 7720 278 0 0 25 0 1 0 850992262 16060416 3238 4294967295 134512640 134716908 3221224560 3221222184 1077380592 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 3921 3238 1111 63 0 3858 0
vsize: 15684
[startup+90.0018 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 31771
Raw data (stat): 31771 (bsolo_lpr_cuts-) R 31770 8378 8377 0 -1 0 119371 0 0 0 8671 327 0 0 25 0 1 0 850992262 17506304 3572 4294967295 134512640 134716908 3221224560 3221222800 1074153782 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4274 3572 1111 63 0 4211 0
vsize: 17096
[startup+100.002 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 31771
Raw data (stat): 31771 (bsolo_lpr_cuts-) R 31770 8378 8377 0 -1 0 134398 0 0 0 9633 365 0 0 25 0 1 0 850992262 18948096 3869 4294967295 134512640 134716908 3221224560 3221221008 1075132478 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 4626 3869 1111 63 0 4563 0
vsize: 18504
[startup+110.002 s]
Raw data (loadavg): 0.98 0.97 0.91 2/55 31771
Raw data (stat): 31771 (bsolo_lpr_cuts-) R 31770 8378 8377 0 -1 0 144422 0 0 0 10610 387 0 0 25 0 1 0 850992262 19091456 3972 4294967295 134512640 134716908 3221224560 3221222560 1074918599 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4661 3972 1111 63 0 4598 0
vsize: 18644
[startup+120.004 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 31771
Raw data (stat): 31771 (bsolo_lpr_cuts-) R 31770 8378 8377 0 -1 0 155392 0 0 0 11585 414 0 0 25 0 1 0 850992262 19349504 4041 4294967295 134512640 134716908 3221224560 3221222812 1077781665 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4724 4041 1111 63 0 4661 0
vsize: 18896
[startup+130.003 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 31771
Raw data (stat): 31771 (bsolo_lpr_cuts-) R 31770 8378 8377 0 -1 0 167032 0 0 0 12555 442 0 0 25 0 1 0 850992262 20320256 4214 4294967295 134512640 134716908 3221224560 3221223364 134622532 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4961 4214 1111 63 0 4898 0
vsize: 19844
[startup+131.324 s]
Raw data (loadavg): 0.99 0.97 0.91 1/54 31771
Raw data (stat): 31771 (bsolo_lpr_cuts-) R 31770 8378 8377 0 -1 0 167032 0 0 0 12555 442 0 0 25 0 1 0 850992262 20320256 4214 4294967295 134512640 134716908 3221224560 3221223364 134622532 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4961 4214 1111 63 0 4898 0
vsize: 0

Child status: 30
Real time (s): 131.324
CPU time (s): 131.307
CPU user time (s): 126.829
CPU system time (s): 4.47832
CPU usage (%): 99.9869
Max. virtual memory (Kb): 19844
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	788263
#### END VERIFIER DATA ####