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/miplib2003/normalized-mps-v2-20-10-momentum1.opb
MD5SUM611e05ec291e603bb8a780ac778ac9aa
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 31027
Biggest coefficient in the objective function 16384000000
Number of bits for the biggest coefficient in the objective function 34
Sum of the numbers in the objective function 1372391683575
Number of bits of the sum of numbers in the objective function 41
Biggest number in a constraint 536870912000000000000000
Number of bits of the biggest number in a constraint 79
Biggest sum of numbers in a constraint 1073792773951002037452800
Number of bits of the biggest sum of numbers80
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.374942
Number of variables41495
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 constraint840

Trace number 26489 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc12 THE 2005-05-24 16:06:37 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=12742 boxname=wulflinc12 idbench=981 idsolver=2 numberseed=0
MD5SUM SOLVER: 754786be69defe53c030aa54f111e0a7  /oldhome/oroussel/solvers/bsolo_lpr_cuts
MD5SUM BENCH:  611e05ec291e603bb8a780ac778ac9aa  /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-20-10-momentum1.opb
REAL COMMAND:  bsolo_lpr_cuts /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-20-10-momentum1.opb
IDLAUNCH: 12742
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.091
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		: 451.091
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:        880900 kB
Buffers:         35844 kB
Cached:          96392 kB
SwapCached:        568 kB
Active:          71400 kB
Inactive:        63344 kB
HighTotal:      131008 kB
HighFree:        30744 kB
LowTotal:       903652 kB
LowFree:        850156 kB
SwapTotal:     2097136 kB
SwapFree:      2096076 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           5676 kB
Slab:            13380 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-24 16:09:09 (client local time) WITH STATUS 0 IN 151.539 SECONDS
stats: 12742 7 151.539 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c ERROR Parsing file!!!
c ERROR parsing line: +19531250*x366_bit_10 +39062500*x366_bit_9 +78125000*x366_bit_8 +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/wulflinc12/normalized-mps-v2-20-10-momentum1.opb
s UNKNOWN
c Exit Code: 0
c Total time: 151.449 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 0.98 0.98 2/54 1112
Raw data (stat): 1112 (runsolver) R 1111 32284 32283 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 773320573 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+10.0093 s]
Raw data (loadavg): 0.94 0.98 0.98 2/54 1112
Raw data (stat): 1112 (bsolo_lpr_cuts) R 1111 32284 32283 0 -1 0 1990 0 0 0 994 4 0 0 25 0 1 0 773320573 20811776 1914 4294967295 134512640 134714508 3221224576 3221222804 1077414388 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 5081 1914 1111 63 0 5018 0
vsize: 20324
[startup+20.0164 s]
Raw data (loadavg): 0.95 0.98 0.98 2/54 1112
Raw data (stat): 1112 (bsolo_lpr_cuts) R 1111 32284 32283 0 -1 0 3712 0 0 0 1990 9 0 0 25 0 1 0 773320573 27791360 3636 4294967295 134512640 134714508 3221224576 3221222804 1077414351 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 6785 3636 1111 63 0 6722 0
vsize: 27140
[startup+30.0163 s]
Raw data (loadavg): 0.96 0.98 0.98 2/54 1112
Raw data (stat): 1112 (bsolo_lpr_cuts) R 1111 32284 32283 0 -1 0 5796 0 0 0 2986 13 0 0 25 0 1 0 773320573 36442112 5720 4294967295 134512640 134714508 3221224576 3221222804 1077414363 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 8897 5720 1111 63 0 8834 0
vsize: 35588
[startup+40.0391 s]
Raw data (loadavg): 0.96 0.98 0.98 2/54 1112
Raw data (stat): 1112 (bsolo_lpr_cuts) R 1111 32284 32283 0 -1 0 7741 0 0 0 3985 17 0 0 25 0 1 0 773320573 44265472 7665 4294967295 134512640 134714508 3221224576 3221222804 1077414370 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 10807 7665 1111 63 0 10744 0
vsize: 43228
[startup+50.0416 s]
Raw data (loadavg): 0.97 0.98 0.98 2/54 1112
Raw data (stat): 1112 (bsolo_lpr_cuts) R 1111 32284 32283 0 -1 0 9774 0 0 0 4982 19 0 0 25 0 1 0 773320573 52666368 9698 4294967295 134512640 134714508 3221224576 3221222804 1077414363 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 12858 9698 1111 63 0 12795 0
vsize: 51432
[startup+60.1461 s]
Raw data (loadavg): 0.97 0.98 0.98 2/54 1112
Raw data (stat): 1112 (bsolo_lpr_cuts) R 1111 32284 32283 0 -1 0 11897 0 0 0 5989 24 0 0 25 0 1 0 773320573 61345792 11821 4294967295 134512640 134714508 3221224576 3221223232 134527972 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 14977 11821 1111 63 0 14914 0
vsize: 59908
[startup+70.1457 s]
Raw data (loadavg): 0.98 0.98 0.98 2/54 1112
Raw data (stat): 1112 (bsolo_lpr_cuts) R 1111 32284 32283 0 -1 0 14073 0 0 0 6985 28 0 0 25 0 1 0 773320573 70320128 13997 4294967295 134512640 134714508 3221224576 3221222804 1077414338 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 17168 13997 1111 63 0 17105 0
vsize: 68672
[startup+80.1455 s]
Raw data (loadavg): 0.98 0.98 0.98 2/54 1112
Raw data (stat): 1112 (bsolo_lpr_cuts) R 1111 32284 32283 0 -1 0 16332 0 0 0 7982 31 0 0 25 0 1 0 773320573 79585280 16256 4294967295 134512640 134714508 3221224576 3221222804 1077414388 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 19430 16256 1111 63 0 19367 0
vsize: 77720
[startup+90.1454 s]
Raw data (loadavg): 0.98 0.98 0.98 2/54 1112
Raw data (stat): 1112 (bsolo_lpr_cuts) R 1111 32284 32283 0 -1 0 18693 0 0 0 8978 35 0 0 25 0 1 0 773320573 89370624 18617 4294967295 134512640 134714508 3221224576 3221223232 134527932 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 21819 18617 1111 63 0 21756 0
vsize: 87276
[startup+100.145 s]
Raw data (loadavg): 0.98 0.98 0.98 2/54 1112
Raw data (stat): 1112 (bsolo_lpr_cuts) R 1111 32284 32283 0 -1 0 21135 0 0 0 9974 39 0 0 25 0 1 0 773320573 99328000 21059 4294967295 134512640 134714508 3221224576 3221223232 134527946 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 24250 21059 1111 63 0 24187 0
vsize: 97000
[startup+110.155 s]
Raw data (loadavg): 0.99 0.98 0.98 2/54 1112
Raw data (stat): 1112 (bsolo_lpr_cuts) R 1111 32284 32283 0 -1 0 23676 0 0 0 10970 44 0 0 25 0 1 0 773320573 109740032 23600 4294967295 134512640 134714508 3221224576 3221222804 1077414385 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 26792 23600 1111 63 0 26729 0
vsize: 107168
[startup+120.159 s]
Raw data (loadavg): 0.99 0.98 0.98 2/54 1112
Raw data (stat): 1112 (bsolo_lpr_cuts) R 1111 32284 32283 0 -1 0 26329 0 0 0 11965 50 0 0 25 0 1 0 773320573 120561664 26253 4294967295 134512640 134714508 3221224576 3221222804 1077414388 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 29434 26253 1111 63 0 29371 0
vsize: 117736
[startup+130.159 s]
Raw data (loadavg): 1.07 1.00 0.98 2/54 1112
Raw data (stat): 1112 (bsolo_lpr_cuts) R 1111 32284 32283 0 -1 0 29097 0 0 0 12961 54 0 0 25 0 1 0 773320573 131805184 29021 4294967295 134512640 134714508 3221224576 3221223232 134527932 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 32179 29021 1111 63 0 32116 0
vsize: 128716
[startup+140.159 s]
Raw data (loadavg): 1.06 1.00 0.98 2/54 1112
Raw data (stat): 1112 (bsolo_lpr_cuts) R 1111 32284 32283 0 -1 0 31999 0 0 0 13955 60 0 0 25 0 1 0 773320573 143716352 31923 4294967295 134512640 134714508 3221224576 3221223232 134527946 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 35087 31923 1111 63 0 35024 0
vsize: 140348
[startup+150.166 s]
Raw data (loadavg): 1.05 1.00 0.98 2/54 1112
Raw data (stat): 1112 (bsolo_lpr_cuts) R 1111 32284 32283 0 -1 0 41043 0 0 0 14936 79 0 0 25 0 1 0 773320573 180748288 40967 4294967295 134512640 134714508 3221224576 3221221336 1077404036 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 44128 40967 1111 63 0 44065 0
vsize: 176512
[startup+151.571 s]
Raw data (loadavg): 1.05 1.00 0.98 1/53 1112
Raw data (stat): 1112 (bsolo_lpr_cuts) R 1111 32284 32283 0 -1 0 41043 0 0 0 14936 79 0 0 25 0 1 0 773320573 180748288 40967 4294967295 134512640 134714508 3221224576 3221221336 1077404036 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 44128 40967 1111 63 0 44065 0
vsize: 0

Child status: 0
Real time (s): 151.571
CPU time (s): 151.539
CPU user time (s): 150.57
CPU system time (s): 0.968852
CPU usage (%): 99.9789
Max. virtual memory (Kb): 176512
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####