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-shell.opb
MD5SUM0f9e797b4b986a37159e9b1332a4b629
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 39844
Biggest coefficient in the objective function 2101312749568
Number of bits for the biggest coefficient in the objective function 41
Sum of the numbers in the objective function 249967315526150
Number of bits of the sum of numbers in the objective function 48
Biggest number in a constraint 2101312749568
Number of bits of the biggest number in a constraint 41
Biggest sum of numbers in a constraint 249967315526150
Number of bits of the biggest sum of numbers48
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.398939
Number of variables45231
Total number of constraints653
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 constraints653
Minimum length of a constraint19
Maximum length of a constraint1560

Trace number 28760 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc24 THE 2005-05-25 04:06:08 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=11389 boxname=wulflinc24 idbench=877 idsolver=1 numberseed=0
MD5SUM SOLVER: e973bb179fd0e01ec8c7277096f1c3ef  /oldhome/oroussel/solvers/bsolo_lpr
MD5SUM BENCH:  0f9e797b4b986a37159e9b1332a4b629  /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-shell.opb
REAL COMMAND:  bsolo_lpr /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-shell.opb
IDLAUNCH: 11389
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.080
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		: 451.080
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:        809492 kB
Buffers:          7500 kB
Cached:         195432 kB
SwapCached:        524 kB
Active:         119076 kB
Inactive:        86192 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        809240 kB
SwapTotal:     2097892 kB
SwapFree:      2096776 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5652 kB
Slab:            14164 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-25 04:11:57 (client local time) WITH STATUS 20 IN 348.601 SECONDS
stats: 11389 7 348.601 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 45231 variables and 973 constraints.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 348.54 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): 1.00 0.91 0.87 2/54 16102
Raw data (stat): 16102 (runsolver) R 16101 4613 4612 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 835864036 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+10.0008 s]
Raw data (loadavg): 1.00 0.92 0.87 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 1044 0 0 0 994 3 0 0 25 0 1 0 835864036 16560128 968 4294967295 134512640 134714508 3221224592 3221222820 1077414388 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4043 968 1111 63 0 3980 0
vsize: 16172
[startup+20.0015 s]
Raw data (loadavg): 1.00 0.92 0.87 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 1435 0 0 0 1993 4 0 0 25 0 1 0 835864036 18190336 1359 4294967295 134512640 134714508 3221224592 3221222820 1077414338 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4441 1359 1111 63 0 4378 0
vsize: 17764
[startup+30.0018 s]
Raw data (loadavg): 1.00 0.92 0.87 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 1828 0 0 0 2992 6 0 0 25 0 1 0 835864036 19832832 1752 4294967295 134512640 134714508 3221224592 3221222820 1077414413 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4842 1752 1111 63 0 4779 0
vsize: 19368
[startup+40.0019 s]
Raw data (loadavg): 1.00 0.92 0.87 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 2204 0 0 0 3991 7 0 0 25 0 1 0 835864036 21331968 2128 4294967295 134512640 134714508 3221224592 3221222820 1077414385 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5208 2128 1111 63 0 5145 0
vsize: 20832
[startup+50.0026 s]
Raw data (loadavg): 1.00 0.92 0.87 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 2611 0 0 0 4990 8 0 0 25 0 1 0 835864036 22978560 2535 4294967295 134512640 134714508 3221224592 3221222820 1077414420 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5610 2535 1111 63 0 5547 0
vsize: 22440
[startup+60.0029 s]
Raw data (loadavg): 1.00 0.93 0.88 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 3068 0 0 0 5989 9 0 0 25 0 1 0 835864036 24895488 2992 4294967295 134512640 134714508 3221224592 3221223248 134527946 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 6078 2992 1111 63 0 6015 0
vsize: 24312
[startup+70.0026 s]
Raw data (loadavg): 1.00 0.93 0.88 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 3480 0 0 0 6988 10 0 0 25 0 1 0 835864036 26542080 3404 4294967295 134512640 134714508 3221224592 3221222820 1077414363 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 6480 3404 1111 63 0 6417 0
vsize: 25920
[startup+80.0043 s]
Raw data (loadavg): 1.00 0.93 0.88 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 3899 0 0 0 7987 11 0 0 25 0 1 0 835864036 28344320 3823 4294967295 134512640 134714508 3221224592 3221222820 1077414370 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 6920 3823 1111 63 0 6857 0
vsize: 27680
[startup+90.0044 s]
Raw data (loadavg): 1.00 0.93 0.88 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 4332 0 0 0 8987 12 0 0 25 0 1 0 835864036 30146560 4256 4294967295 134512640 134714508 3221224592 3221222820 1077414413 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 7360 4256 1111 63 0 7297 0
vsize: 29440
[startup+100.004 s]
Raw data (loadavg): 1.00 0.93 0.88 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 4797 0 0 0 9986 13 0 0 25 0 1 0 835864036 32104448 4721 4294967295 134512640 134714508 3221224592 3221222820 1077414338 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 7838 4721 1111 63 0 7775 0
vsize: 31352
[startup+110.004 s]
Raw data (loadavg): 1.00 0.93 0.88 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 5267 0 0 0 10984 15 0 0 25 0 1 0 835864036 33902592 5191 4294967295 134512640 134714508 3221224592 3221222820 1077414388 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 8277 5191 1111 63 0 8214 0
vsize: 33108
[startup+120.005 s]
Raw data (loadavg): 1.00 0.94 0.88 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 5731 0 0 0 11983 16 0 0 25 0 1 0 835864036 35852288 5655 4294967295 134512640 134714508 3221224592 3221222820 1077414370 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 8753 5655 1111 63 0 8690 0
vsize: 35012
[startup+130.005 s]
Raw data (loadavg): 1.00 0.94 0.88 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 6209 0 0 0 12982 17 0 0 25 0 1 0 835864036 37797888 6133 4294967295 134512640 134714508 3221224592 3221223248 134527932 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 9228 6133 1111 63 0 9165 0
vsize: 36912
[startup+140.004 s]
Raw data (loadavg): 1.00 0.94 0.88 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 6710 0 0 0 13980 19 0 0 25 0 1 0 835864036 39907328 6634 4294967295 134512640 134714508 3221224592 3221222820 1077414413 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 9743 6634 1111 63 0 9680 0
vsize: 38972
[startup+150.005 s]
Raw data (loadavg): 1.00 0.94 0.88 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 7225 0 0 0 14979 20 0 0 25 0 1 0 835864036 42008576 7149 4294967295 134512640 134714508 3221224592 3221223248 134527932 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 10256 7149 1111 63 0 10193 0
vsize: 41024
[startup+160.005 s]
Raw data (loadavg): 1.00 0.94 0.89 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 7748 0 0 0 15978 21 0 0 25 0 1 0 835864036 44081152 7672 4294967295 134512640 134714508 3221224592 3221222820 1077414363 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 10762 7672 1111 63 0 10699 0
vsize: 43048
[startup+170.005 s]
Raw data (loadavg): 1.00 0.94 0.89 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 8285 0 0 0 16976 24 0 0 25 0 1 0 835864036 46333952 8209 4294967295 134512640 134714508 3221224592 3221222820 1077414388 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 11312 8209 1111 63 0 11249 0
vsize: 45248
[startup+180.006 s]
Raw data (loadavg): 1.00 0.95 0.89 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 8846 0 0 0 17975 25 0 0 25 0 1 0 835864036 48656384 8770 4294967295 134512640 134714508 3221224592 3221222820 1077414338 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 11879 8770 1111 63 0 11816 0
vsize: 47516
[startup+190.006 s]
Raw data (loadavg): 1.00 0.95 0.89 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 9405 0 0 0 18974 26 0 0 25 0 1 0 835864036 51027968 9329 4294967295 134512640 134714508 3221224592 3221223248 134527946 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 12458 9329 1111 63 0 12395 0
vsize: 49832
[startup+200.006 s]
Raw data (loadavg): 1.00 0.95 0.89 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 9978 0 0 0 19971 28 0 0 25 0 1 0 835864036 53280768 9902 4294967295 134512640 134714508 3221224592 3221223248 134527946 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 13008 9902 1111 63 0 12945 0
vsize: 52032
[startup+210.007 s]
Raw data (loadavg): 1.00 0.95 0.89 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 10568 0 0 0 20970 30 0 0 25 0 1 0 835864036 55652352 10492 4294967295 134512640 134714508 3221224592 3221222820 1077414388 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 13587 10492 1111 63 0 13524 0
vsize: 54348
[startup+220.007 s]
Raw data (loadavg): 1.00 0.95 0.89 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 11207 0 0 0 21969 31 0 0 25 0 1 0 835864036 58347520 11131 4294967295 134512640 134714508 3221224592 3221222820 1077414388 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 14245 11131 1111 63 0 14182 0
vsize: 56980
[startup+230.008 s]
Raw data (loadavg): 1.00 0.95 0.89 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 11858 0 0 0 22967 33 0 0 25 0 1 0 835864036 61038592 11782 4294967295 134512640 134714508 3221224592 3221222820 1077414363 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 14902 11782 1111 63 0 14839 0
vsize: 59608
[startup+240.009 s]
Raw data (loadavg): 1.00 0.95 0.89 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 12537 0 0 0 23966 34 0 0 25 0 1 0 835864036 63713280 12461 4294967295 134512640 134714508 3221224592 3221223248 134527932 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 15555 12461 1111 63 0 15492 0
vsize: 62220
[startup+250.009 s]
Raw data (loadavg): 1.00 0.95 0.89 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 13235 0 0 0 24964 37 0 0 25 0 1 0 835864036 66560000 13159 4294967295 134512640 134714508 3221224592 3221222820 1077414388 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 16250 13159 1111 63 0 16187 0
vsize: 65000
[startup+260.009 s]
Raw data (loadavg): 1.00 0.95 0.90 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 13947 0 0 0 25962 39 0 0 25 0 1 0 835864036 69533696 13871 4294967295 134512640 134714508 3221224592 3221222820 1077414410 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 16976 13871 1111 63 0 16913 0
vsize: 67904
[startup+270.009 s]
Raw data (loadavg): 1.00 0.95 0.90 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 14670 0 0 0 26960 40 0 0 25 0 1 0 835864036 72384512 14594 4294967295 134512640 134714508 3221224592 3221222820 1077414363 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 17672 14594 1111 63 0 17609 0
vsize: 70688
[startup+280.009 s]
Raw data (loadavg): 1.00 0.95 0.90 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 15449 0 0 0 27958 43 0 0 25 0 1 0 835864036 75685888 15373 4294967295 134512640 134714508 3221224592 3221223248 134527930 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 18478 15373 1111 63 0 18415 0
vsize: 73912
[startup+290.01 s]
Raw data (loadavg): 1.00 0.96 0.90 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 16253 0 0 0 28956 45 0 0 25 0 1 0 835864036 78946304 16177 4294967295 134512640 134714508 3221224592 3221223248 134527935 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 19274 16177 1111 63 0 19211 0
vsize: 77096
[startup+300.01 s]
Raw data (loadavg): 1.00 0.96 0.90 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 17096 0 0 0 29954 46 0 0 25 0 1 0 835864036 82554880 17020 4294967295 134512640 134714508 3221224592 3221223248 134527932 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 20155 17020 1111 63 0 20092 0
vsize: 80620
[startup+310.01 s]
Raw data (loadavg): 1.00 0.96 0.90 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 17942 0 0 0 30953 48 0 0 25 0 1 0 835864036 85999616 17866 4294967295 134512640 134714508 3221224592 3221223248 134527932 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 20996 17866 1111 63 0 20933 0
vsize: 83984
[startup+320.01 s]
Raw data (loadavg): 1.00 0.96 0.90 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 18803 0 0 0 31951 50 0 0 25 0 1 0 835864036 89604096 18727 4294967295 134512640 134714508 3221224592 3221223248 134527946 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 21876 18727 1111 63 0 21813 0
vsize: 87504
[startup+330.016 s]
Raw data (loadavg): 1.00 0.96 0.90 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 19700 0 0 0 32949 52 0 0 25 0 1 0 835864036 93200384 19624 4294967295 134512640 134714508 3221224592 3221223248 134527932 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 22754 19624 1111 63 0 22691 0
vsize: 91016
[startup+340.016 s]
Raw data (loadavg): 1.00 0.96 0.90 2/54 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 22042 0 0 0 33944 58 0 0 25 0 1 0 835864036 102100992 21806 4294967295 134512640 134714508 3221224592 3221222880 134566780 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 24927 21806 1111 63 0 24864 0
vsize: 99708
[startup+348.601 s]
Raw data (loadavg): 1.00 0.96 0.90 1/53 16102
Raw data (stat): 16102 (bsolo_lpr) R 16101 4613 4612 0 -1 0 22042 0 0 0 33944 58 0 0 25 0 1 0 835864036 102100992 21806 4294967295 134512640 134714508 3221224592 3221222880 134566780 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 24927 21806 1111 63 0 24864 0
vsize: 0

Child status: 20
Real time (s): 348.6
CPU time (s): 348.601
CPU user time (s): 347.801
CPU system time (s): 0.799878
CPU usage (%): 100
Max. virtual memory (Kb): 99708
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####