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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-sierra.opb
MD5SUM4eeca712f5c43ba16697ebe3806a3a23
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 36989
Biggest coefficient in the objective function 40063152947200
Number of bits for the biggest coefficient in the objective function 46
Sum of the numbers in the objective function 712861332680300
Number of bits of the sum of numbers in the objective function 50
Biggest number in a constraint 40063152947200
Number of bits of the biggest number in a constraint 46
Biggest sum of numbers in a constraint 712861332680300
Number of bits of the biggest sum of numbers50
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.344947
Number of variables38715
Total number of constraints3263
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints3263
Minimum length of a constraint10
Maximum length of a constraint498

Trace number 39857 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-07 21:39:26 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=27928 boxname=wulflinc3 idbench=884 idsolver=20 numberseed=0
MD5SUM SOLVER: f6aa7fb267fa9710116626be7e6d3048  /oldhome/oroussel/solvers/bsolo_lpr-v2
MD5SUM BENCH:  4eeca712f5c43ba16697ebe3806a3a23  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-sierra.opb
REAL COMMAND:  bsolo_lpr-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-sierra.opb
IDLAUNCH: 27928
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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	: 2
cpu MHz		: 451.190
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:        821688 kB
Buffers:         34164 kB
Cached:         150288 kB
SwapCached:       6016 kB
Active:          56924 kB
Inactive:       134924 kB
HighTotal:      131008 kB
HighFree:        22148 kB
LowTotal:       903652 kB
LowFree:        799540 kB
SwapTotal:     2097136 kB
SwapFree:      2090192 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5052 kB
Slab:            15320 kB
Committed_AS:    71796 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-07 21:44:39 (client local time) WITH STATUS 20 IN 312.809 SECONDS
stats: 27928 7 312.809 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 38715 variables and 3781 constraints.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 312.736 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): 0.84 0.94 0.90 2/54 16376
Raw data (stat): 16376 (runsolver) R 16375 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 896292176 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0011 s]
Raw data (loadavg): 0.87 0.94 0.90 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 1105 0 0 0 994 3 0 0 25 0 1 0 896292176 16936960 1025 4294967295 134512640 134716908 3221224576 3221222804 1077414413 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4135 1025 1111 63 0 4072 0
vsize: 16540
[startup+20.002 s]
Raw data (loadavg): 0.89 0.94 0.90 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 1556 0 0 0 1994 4 0 0 25 0 1 0 896292176 18673664 1476 4294967295 134512640 134716908 3221224576 3221222804 1077414408 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4559 1476 1111 63 0 4496 0
vsize: 18236
[startup+30.0022 s]
Raw data (loadavg): 0.90 0.94 0.90 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 2006 0 0 0 2993 5 0 0 25 0 1 0 896292176 20545536 1926 4294967295 134512640 134716908 3221224576 3221222804 1077414413 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5016 1926 1111 63 0 4953 0
vsize: 20064
[startup+40.0026 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 2468 0 0 0 3991 7 0 0 25 0 1 0 896292176 22409216 2388 4294967295 134512640 134716908 3221224576 3221222804 1077414363 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5471 2388 1111 63 0 5408 0
vsize: 21884
[startup+50.0034 s]
Raw data (loadavg): 0.93 0.94 0.90 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 2900 0 0 0 4990 8 0 0 25 0 1 0 896292176 24289280 2820 4294967295 134512640 134716908 3221224576 3221222804 1077414407 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5930 2820 1111 63 0 5867 0
vsize: 23720
[startup+60.0051 s]
Raw data (loadavg): 0.94 0.95 0.90 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 3481 0 0 0 5989 9 0 0 25 0 1 0 896292176 26693632 3401 4294967295 134512640 134716908 3221224576 3221222804 1077414338 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 6517 3401 1111 63 0 6454 0
vsize: 26068
[startup+70.0051 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 4047 0 0 0 6987 11 0 0 25 0 1 0 896292176 28942336 3967 4294967295 134512640 134716908 3221224576 3221222804 1077414338 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 7066 3967 1111 63 0 7003 0
vsize: 28264
[startup+80.0049 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 4602 0 0 0 7986 12 0 0 25 0 1 0 896292176 31211520 4522 4294967295 134512640 134716908 3221224576 3221222804 1077414338 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 7620 4522 1111 63 0 7557 0
vsize: 30480
[startup+90.0051 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 5249 0 0 0 8985 14 0 0 25 0 1 0 896292176 33857536 5169 4294967295 134512640 134716908 3221224576 3221223232 134527946 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 8266 5169 1111 63 0 8203 0
vsize: 33064
[startup+100.005 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 5822 0 0 0 9984 15 0 0 25 0 1 0 896292176 36261888 5742 4294967295 134512640 134716908 3221224576 3221222804 1077414363 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 8853 5742 1111 63 0 8790 0
vsize: 35412
[startup+110.005 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 6476 0 0 0 10983 16 0 0 25 0 1 0 896292176 38928384 6396 4294967295 134512640 134716908 3221224576 3221222804 1077414363 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 9504 6396 1111 63 0 9441 0
vsize: 38016
[startup+120.007 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 7088 0 0 0 11983 17 0 0 25 0 1 0 896292176 41480192 7008 4294967295 134512640 134716908 3221224576 3221222804 1077414363 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 10127 7008 1111 63 0 10064 0
vsize: 40508
[startup+130.006 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 7831 0 0 0 12982 18 0 0 25 0 1 0 896292176 44408832 7751 4294967295 134512640 134716908 3221224576 3221222804 1077414388 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 10842 7751 1111 63 0 10779 0
vsize: 43368
[startup+140.006 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 8497 0 0 0 13981 18 0 0 25 0 1 0 896292176 47120384 8417 4294967295 134512640 134716908 3221224576 3221222804 1077414413 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 11504 8417 1111 63 0 11441 0
vsize: 46016
[startup+150.006 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 9233 0 0 0 14980 20 0 0 25 0 1 0 896292176 50245632 9153 4294967295 134512640 134716908 3221224576 3221222804 1077414433 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 12267 9153 1111 63 0 12204 0
vsize: 49068
[startup+160.007 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 10225 0 0 0 15979 21 0 0 25 0 1 0 896292176 54247424 10145 4294967295 134512640 134716908 3221224576 3221222804 1077414410 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 13244 10145 1111 63 0 13181 0
vsize: 52976
[startup+170.006 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 11183 0 0 0 16977 23 0 0 25 0 1 0 896292176 58159104 11103 4294967295 134512640 134716908 3221224576 3221222804 1077414363 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 14199 11103 1111 63 0 14136 0
vsize: 56796
[startup+180.007 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 12298 0 0 0 17975 25 0 0 25 0 1 0 896292176 62820352 12218 4294967295 134512640 134716908 3221224576 3221222804 1077414413 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 15337 12218 1111 63 0 15274 0
vsize: 61348
[startup+190.007 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 13430 0 0 0 18973 27 0 0 25 0 1 0 896292176 67497984 13350 4294967295 134512640 134716908 3221224576 3221222804 1077414336 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 16479 13350 1111 63 0 16416 0
vsize: 65916
[startup+200.007 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 14597 0 0 0 19971 30 0 0 25 0 1 0 896292176 72179712 14517 4294967295 134512640 134716908 3221224576 3221222804 1077414413 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 17622 14517 1111 63 0 17559 0
vsize: 70488
[startup+210.008 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 15673 0 0 0 20970 31 0 0 25 0 1 0 896292176 76660736 15593 4294967295 134512640 134716908 3221224576 3221222804 1077414338 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 18716 15593 1111 63 0 18653 0
vsize: 74864
[startup+220.009 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 16742 0 0 0 21969 32 0 0 25 0 1 0 896292176 81031168 16662 4294967295 134512640 134716908 3221224576 3221222804 1077414424 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 19783 16662 1111 63 0 19720 0
vsize: 79132
[startup+230.008 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 17845 0 0 0 22966 35 0 0 25 0 1 0 896292176 85532672 17765 4294967295 134512640 134716908 3221224576 3221223232 134527946 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 20882 17765 1111 63 0 20819 0
vsize: 83528
[startup+240.009 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 19002 0 0 0 23964 37 0 0 25 0 1 0 896292176 90177536 18922 4294967295 134512640 134716908 3221224576 3221223232 134527935 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 22016 18922 1111 63 0 21953 0
vsize: 88064
[startup+250.009 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 20220 0 0 0 24963 39 0 0 25 0 1 0 896292176 95236096 20140 4294967295 134512640 134716908 3221224576 3221223232 134527932 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 23251 20140 1111 63 0 23188 0
vsize: 93004
[startup+260.01 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 21449 0 0 0 25962 40 0 0 25 0 1 0 896292176 100163584 21369 4294967295 134512640 134716908 3221224576 3221223232 134527946 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 24454 21369 1111 63 0 24391 0
vsize: 97816
[startup+270.01 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 23004 0 0 0 26959 43 0 0 25 0 1 0 896292176 106524672 22924 4294967295 134512640 134716908 3221224576 3221223232 134527932 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 26007 22924 1111 63 0 25944 0
vsize: 104028
[startup+280.01 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 24363 0 0 0 27957 45 0 0 25 0 1 0 896292176 112418816 24283 4294967295 134512640 134716908 3221224576 3221223232 134527932 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 27446 24283 1111 63 0 27383 0
vsize: 109784
[startup+290.01 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 25827 0 0 0 28954 48 0 0 25 0 1 0 896292176 118407168 25747 4294967295 134512640 134716908 3221224576 3221223232 134527932 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 28908 25747 1111 63 0 28845 0
vsize: 115632
[startup+300.011 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 28815 0 0 0 29949 54 0 0 25 0 1 0 896292176 129888256 28587 4294967295 134512640 134716908 3221224576 3221221372 1077091057 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 31711 28587 1111 63 0 31648 0
vsize: 126844
[startup+310.012 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 32683 0 0 0 30937 65 0 0 25 0 1 0 896292176 145821696 32455 4294967295 134512640 134716908 3221224576 3221222492 1077271619 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 35601 32455 1111 63 0 35538 0
vsize: 142404
[startup+312.797 s]
Raw data (loadavg): 0.99 0.97 0.91 1/53 16376
Raw data (stat): 16376 (bsolo_lpr-v2) R 16375 20224 20223 0 -1 0 32683 0 0 0 30937 65 0 0 25 0 1 0 896292176 145821696 32455 4294967295 134512640 134716908 3221224576 3221222492 1077271619 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 35601 32455 1111 63 0 35538 0
vsize: 0

Child status: 20
Real time (s): 312.797
CPU time (s): 312.809
CPU user time (s): 312.001
CPU system time (s): 0.808877
CPU usage (%): 100.004
Max. virtual memory (Kb): 142404
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####