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/miplib2003/normalized-mps-v2-13-7-momentum1.opb
MD5SUMacfea3028edc6266e2157b2d64da7531
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 23392
Biggest coefficient in the objective function 2048000000
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 171547966775
Number of bits of the sum of numbers in the objective function 38
Biggest number in a constraint 524288000000000000000
Number of bits of the biggest number in a constraint 69
Biggest sum of numbers in a constraint 1054942508296556904448
Number of bits of the biggest sum of numbers70
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.276957
Number of variables31067
Total number of constraints47575
Number of constraints which are clauses24365
Number of constraints which are cardinality constraints (but not clauses)3166
Number of constraints which are nor clauses,nor cardinality constraints20044
Minimum length of a constraint1
Maximum length of a constraint668

Trace number 27254

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc23 THE 2005-05-24 20:39:53 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=17733 boxname=wulflinc23 idbench=1365 idsolver=1 numberseed=0
MD5SUM SOLVER: e973bb179fd0e01ec8c7277096f1c3ef  /oldhome/oroussel/solvers/bsolo_lpr
MD5SUM BENCH:  acfea3028edc6266e2157b2d64da7531  /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-13-7-momentum1.opb
REAL COMMAND:  bsolo_lpr /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-13-7-momentum1.opb
IDLAUNCH: 17733
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.037
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		: 451.037
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:        837924 kB
Buffers:         33228 kB
Cached:         141140 kB
SwapCached:        664 kB
Active:          43912 kB
Inactive:       133008 kB
HighTotal:      131008 kB
HighFree:         4228 kB
LowTotal:       903652 kB
LowFree:        833696 kB
SwapTotal:     2097136 kB
SwapFree:      2096028 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5652 kB
Slab:            14120 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-24 20:41:31 (client local time) WITH STATUS 0 IN 95.8614 SECONDS
stats: 17733 7 95.8614 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c ERROR Parsing file!!!
c ERROR parsing line: +156250000*x366_bit_7 +312500000*x366_bit_6 +625000000*x366_bit_5 +1250000000*x366_bit_4 +2500000000*x366_bit_3 +5000000000*x366_bit_2 +10000000000*x366_bit_1 +20000000000*x366_bit0 +40000000000*x366_bit1 -2735831*x5042_bit0 >= +0;
c Cannot parse input file name: /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-13-7-momentum1.opb
s UNKNOWN
c Exit Code: 0
c Total time: 95.771 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): 0.93 0.95 0.90 1/54 9542
Raw data (stat): 9542 (runsolver) D 9541 5562 5561 0 -1 64 4 0 0 0 0 0 0 0 18 0 1 0 833190664 1052672 99 4294967295 134512640 135381576 3221224496 3221219712 135158418 0 2147483391 7 90112 3225161850 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.0001 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 9542
Raw data (stat): 9542 (bsolo_lpr) R 9541 5562 5561 0 -1 0 2809 0 0 0 972 7 0 0 25 0 1 0 833190664 24244224 2733 4294967295 134512640 134714508 3221224592 3221222820 1077414408 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5919 2733 1111 63 0 5856 0
vsize: 23676
[startup+20.003 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 9542
Raw data (stat): 9542 (bsolo_lpr) R 9541 5562 5561 0 -1 0 6059 0 0 0 1967 13 0 0 25 0 1 0 833190664 37605376 5983 4294967295 134512640 134714508 3221224592 3221222820 1077414363 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 9181 5983 1111 63 0 9118 0
vsize: 36724
[startup+30.0023 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 9542
Raw data (stat): 9542 (bsolo_lpr) R 9541 5562 5561 0 -1 0 9078 0 0 0 2961 19 0 0 25 0 1 0 833190664 50028544 9002 4294967295 134512640 134714508 3221224592 3221222820 1077414370 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 12214 9002 1111 63 0 12151 0
vsize: 48856
[startup+40.015 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 9542
Raw data (stat): 9542 (bsolo_lpr) R 9541 5562 5561 0 -1 0 12154 0 0 0 3955 26 0 0 25 0 1 0 833190664 62603264 12078 4294967295 134512640 134714508 3221224592 3221222820 1077414358 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 15284 12078 1111 63 0 15221 0
vsize: 61136
[startup+50.0286 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 9542
Raw data (stat): 9542 (bsolo_lpr) R 9541 5562 5561 0 -1 0 15392 0 0 0 4951 32 0 0 25 0 1 0 833190664 75919360 15316 4294967295 134512640 134714508 3221224592 3221222820 1077414408 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 18535 15316 1111 63 0 18472 0
vsize: 74140
[startup+60.0293 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 9542
Raw data (stat): 9542 (bsolo_lpr) R 9541 5562 5561 0 -1 0 19138 0 0 0 5945 38 0 0 25 0 1 0 833190664 91168768 19062 4294967295 134512640 134714508 3221224592 3221223248 134527946 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 22258 19062 1111 63 0 22195 0
vsize: 89032
[startup+70.0289 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 9542
Raw data (stat): 9542 (bsolo_lpr) R 9541 5562 5561 0 -1 0 23447 0 0 0 6936 47 0 0 25 0 1 0 833190664 108941312 23371 4294967295 134512640 134714508 3221224592 3221223248 134527932 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 26597 23371 1111 63 0 26534 0
vsize: 106388
[startup+80.0296 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 9542
Raw data (stat): 9542 (bsolo_lpr) R 9541 5562 5561 0 -1 0 27955 0 0 0 7928 55 0 0 25 0 1 0 833190664 127356928 27879 4294967295 134512640 134714508 3221224592 3221223248 134527930 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 31093 27879 1111 63 0 31030 0
vsize: 124372
[startup+90.0292 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 9542
Raw data (stat): 9542 (bsolo_lpr) R 9541 5562 5561 0 -1 0 33188 0 0 0 8918 65 0 0 25 0 1 0 833190664 148795392 33112 4294967295 134512640 134714508 3221224592 3221221308 1077191361 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 36327 33116 1111 63 0 36264 0
vsize: 145308
[startup+96.0574 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 9542
Raw data (stat): 9542 (bsolo_lpr) R 9541 5562 5561 0 -1 0 33188 0 0 0 8918 65 0 0 25 0 1 0 833190664 148795392 33112 4294967295 134512640 134714508 3221224592 3221221308 1077191361 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 36327 33116 1111 63 0 36264 0
vsize: 0

Child status: 0
Real time (s): 96.0561
CPU time (s): 95.8614
CPU user time (s): 94.9106
CPU system time (s): 0.950855
CPU usage (%): 99.7973
Max. virtual memory (Kb): 145308
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####