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 28532 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc30 THE 2005-05-25 03:08:23 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=12197 boxname=wulflinc30 idbench=939 idsolver=3 numberseed=0
MD5SUM SOLVER: 03a6a792daea978e4202f78851741568  /oldhome/oroussel/solvers/bsolo_mis
MD5SUM BENCH:  b9c1029cc1d97a8d60e984f96f5d3267  /oldhome/oroussel/tmp/wulflinc30/normalized-mps-v2-20-10-pipex.opb
REAL COMMAND:  bsolo_mis /oldhome/oroussel/tmp/wulflinc30/normalized-mps-v2-20-10-pipex.opb
IDLAUNCH: 12197
/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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        415656 kB
Buffers:         29232 kB
Cached:         561108 kB
SwapCached:        716 kB
Active:          48568 kB
Inactive:       543908 kB
HighTotal:      131008 kB
HighFree:          336 kB
LowTotal:       903652 kB
LowFree:        415320 kB
SwapTotal:     2097892 kB
SwapFree:      2096344 kB
Dirty:              32 kB
Writeback:           0 kB
Mapped:           5016 kB
Slab:            20644 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-25 03:10:09 (client local time) WITH STATUS 30 IN 105.801 SECONDS
stats: 12197 0 105.801 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
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 0.032 s
c Initial Lower Bound: 722438
c Lower Bound Elapsed time: 0
c Use computed LB before first solution.
c NEW SOLUTION FOUND: 867422 @ 0.08
c NEW SOLUTION FOUND: 840362 @ 0.081
c NEW SOLUTION FOUND: 835262 @ 0.085
c NEW SOLUTION FOUND: 832622 @ 0.086
c NEW SOLUTION FOUND: 826763 @ 3.012
c NEW SOLUTION FOUND: 824383 @ 3.057
c NEW SOLUTION FOUND: 823110 @ 3.181
c NEW SOLUTION FOUND: 815810 @ 4.089
c NEW SOLUTION FOUND: 814474 @ 8.258
c NEW SOLUTION FOUND: 813201 @ 19.603
c NEW SOLUTION FOUND: 811355 @ 100.471
c NEW SOLUTION FOUND: 809981 @ 100.477
c NEW SOLUTION FOUND: 804961 @ 100.478
c NEW SOLUTION FOUND: 802321 @ 100.564
c NEW SOLUTION FOUND: 794030 @ 100.567
c NEW SOLUTION FOUND: 788263 @ 100.568
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: 105.777 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
Raw data (loadavg): 0.75 0.90 0.96 2/54 31406
Raw data (stat): 31406 (runsolver) R 31405 22056 22055 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 835514831 1052672 99 4294967295 134512640 135381576 3221224496 3221219712 135158418 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.0011 s]
Raw data (loadavg): 0.79 0.90 0.96 2/54 31406
Raw data (stat): 31406 (bsolo_mis) R 31405 22056 22055 0 -1 0 4040 0 0 0 988 10 0 0 25 0 1 0 835514831 20570112 4001 4294967295 134512640 134714540 3221224592 3221223408 134622477 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5022 4001 1111 63 0 4959 0
vsize: 20088
[startup+20.0011 s]
Raw data (loadavg): 0.82 0.91 0.96 2/54 31406
Raw data (stat): 31406 (bsolo_mis) R 31405 22056 22055 0 -1 0 4598 0 0 0 1986 12 0 0 25 0 1 0 835514831 22917120 4543 4294967295 134512640 134714540 3221224592 3221223312 134622884 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5595 4543 1111 63 0 5532 0
vsize: 22380
[startup+30.0012 s]
Raw data (loadavg): 0.85 0.91 0.96 2/54 31406
Raw data (stat): 31406 (bsolo_mis) R 31405 22056 22055 0 -1 0 4996 0 0 0 2985 14 0 0 25 0 1 0 835514831 24543232 4939 4294967295 134512640 134714540 3221224592 3221223384 134543552 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5992 4939 1111 63 0 5929 0
vsize: 23968
[startup+40.0014 s]
Raw data (loadavg): 0.87 0.91 0.96 2/54 31406
Raw data (stat): 31406 (bsolo_mis) R 31405 22056 22055 0 -1 0 5865 0 0 0 3982 16 0 0 25 0 1 0 835514831 28098560 5794 4294967295 134512640 134714540 3221224592 3221223320 134622828 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 6860 5794 1111 63 0 6797 0
vsize: 27440
[startup+50.0022 s]
Raw data (loadavg): 0.89 0.91 0.96 2/54 31406
Raw data (stat): 31406 (bsolo_mis) R 31405 22056 22055 0 -1 0 6455 0 0 0 4980 19 0 0 25 0 1 0 835514831 30625792 6376 4294967295 134512640 134714540 3221224592 3221223328 134622743 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 7477 6376 1111 63 0 7414 0
vsize: 29908
[startup+60.0026 s]
Raw data (loadavg): 0.91 0.92 0.96 2/54 31406
Raw data (stat): 31406 (bsolo_mis) R 31405 22056 22055 0 -1 0 6737 0 0 0 5979 20 0 0 25 0 1 0 835514831 31825920 6650 4294967295 134512640 134714540 3221224592 3221223304 134543176 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 7770 6650 1111 63 0 7707 0
vsize: 31080
[startup+70.0029 s]
Raw data (loadavg): 0.92 0.92 0.96 2/54 31406
Raw data (stat): 31406 (bsolo_mis) R 31405 22056 22055 0 -1 0 7033 0 0 0 6978 21 0 0 25 0 1 0 835514831 33153024 6934 4294967295 134512640 134714540 3221224592 3221223308 134558493 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 8094 6934 1111 63 0 8031 0
vsize: 32376
[startup+80.0038 s]
Raw data (loadavg): 0.93 0.92 0.96 2/54 31406
Raw data (stat): 31406 (bsolo_mis) R 31405 22056 22055 0 -1 0 7322 0 0 0 7977 22 0 0 25 0 1 0 835514831 34238464 7223 4294967295 134512640 134714540 3221224592 3221223304 134543187 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 8359 7223 1111 63 0 8296 0
vsize: 33436
[startup+90.0029 s]
Raw data (loadavg): 0.94 0.92 0.96 2/54 31406
Raw data (stat): 31406 (bsolo_mis) R 31405 22056 22055 0 -1 0 7490 0 0 0 8977 22 0 0 25 0 1 0 835514831 34963456 7391 4294967295 134512640 134714540 3221224592 3221223172 134543092 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 8536 7391 1111 63 0 8473 0
vsize: 34144
[startup+100.003 s]
Raw data (loadavg): 0.95 0.92 0.96 2/54 31406
Raw data (stat): 31406 (bsolo_mis) R 31405 22056 22055 0 -1 0 7670 0 0 0 9976 23 0 0 25 0 1 0 835514831 35639296 7570 4294967295 134512640 134714540 3221224592 3221223148 134536779 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 8701 7570 1111 63 0 8638 0
vsize: 34804
[startup+105.807 s]
Raw data (loadavg): 0.95 0.93 0.96 1/53 31406
Raw data (stat): 31406 (bsolo_mis) R 31405 22056 22055 0 -1 0 7670 0 0 0 9976 23 0 0 25 0 1 0 835514831 35639296 7570 4294967295 134512640 134714540 3221224592 3221223148 134536779 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 8701 7570 1111 63 0 8638 0
vsize: 0

Child status: 30
Real time (s): 105.807
CPU time (s): 105.801
CPU user time (s): 105.47
CPU system time (s): 0.330949
CPU usage (%): 99.9946
Max. virtual memory (Kb): 34804
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	788263
#### END VERIFIER DATA ####