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-atlanta-ip.opb
MD5SUM0a1ff370c051d88127ca8cdb722ca490
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 31296
Biggest coefficient in the objective function 1700000000000
Number of bits for the biggest coefficient in the objective function 41
Sum of the numbers in the objective function 81421012358779
Number of bits of the sum of numbers in the objective function 47
Biggest number in a constraint 1700000000000
Number of bits of the biggest number in a constraint 41
Biggest sum of numbers in a constraint 81421012358779
Number of bits of the biggest sum of numbers47
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.893863
Number of variables77286
Total number of constraints70354
Number of constraints which are clauses2311
Number of constraints which are cardinality constraints (but not clauses)47534
Number of constraints which are nor clauses,nor cardinality constraints20509
Minimum length of a constraint1
Maximum length of a constraint2790

Trace number 39935 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-06-07 23:09:56 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=28004 boxname=wulflinc5 idbench=960 idsolver=20 numberseed=0
MD5SUM SOLVER: f6aa7fb267fa9710116626be7e6d3048  /oldhome/oroussel/solvers/bsolo_lpr-v2
MD5SUM BENCH:  0a1ff370c051d88127ca8cdb722ca490  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-atlanta-ip.opb
REAL COMMAND:  bsolo_lpr-v2 /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-atlanta-ip.opb
IDLAUNCH: 28004
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.007
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		: 451.007
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:        742892 kB
Buffers:         34056 kB
Cached:         232648 kB
SwapCached:        604 kB
Active:          59836 kB
Inactive:       208936 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        742640 kB
SwapTotal:     2097136 kB
SwapFree:      2095596 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5160 kB
Slab:            17324 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-07 23:14:07 (client local time) WITH STATUS 0 IN 248.828 SECONDS
stats: 28004 7 248.828 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
#### 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): 1.07 1.02 0.93 1/54 9558
Raw data (stat): 9558 (runsolver) R 9557 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 896843777 884736 94 4294967295 134512640 135332820 3221224448 3221219628 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+10.0012 s]
Raw data (loadavg): 1.06 1.01 0.93 2/54 9558
Raw data (stat): 9558 (bsolo_lpr-v2) R 9557 7266 7265 0 -1 0 6680 0 0 0 984 14 0 0 25 0 1 0 896843777 39870464 6600 4294967295 134512640 134716908 3221224560 3221222788 1077414338 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 9734 6600 1111 63 0 9671 0
vsize: 38936
[startup+20.0014 s]
Raw data (loadavg): 1.05 1.01 0.93 2/54 9558
Raw data (stat): 9558 (bsolo_lpr-v2) R 9557 7266 7265 0 -1 0 13973 0 0 0 1972 26 0 0 25 0 1 0 896843777 69840896 13893 4294967295 134512640 134716908 3221224560 3221223216 134527946 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 17051 13893 1111 63 0 16988 0
vsize: 68204
[startup+30.0025 s]
Raw data (loadavg): 1.04 1.01 0.93 2/54 9558
Raw data (stat): 9558 (bsolo_lpr-v2) R 9557 7266 7265 0 -1 0 21361 0 0 0 2961 38 0 0 25 0 1 0 896843777 99999744 21281 4294967295 134512640 134716908 3221224560 3221222788 1077414413 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 24414 21281 1111 63 0 24351 0
vsize: 97656
[startup+40.0033 s]
Raw data (loadavg): 1.03 1.01 0.93 2/54 9558
Raw data (stat): 9558 (bsolo_lpr-v2) R 9557 7266 7265 0 -1 0 28877 0 0 0 3947 51 0 0 25 0 1 0 896843777 130879488 28797 4294967295 134512640 134716908 3221224560 3221223216 134527932 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 31953 28797 1111 63 0 31890 0
vsize: 127812
[startup+50.0026 s]
Raw data (loadavg): 1.03 1.01 0.93 2/54 9558
Raw data (stat): 9558 (bsolo_lpr-v2) R 9557 7266 7265 0 -1 0 36163 0 0 0 4936 63 0 0 25 0 1 0 896843777 160739328 36083 4294967295 134512640 134716908 3221224560 3221222788 1077414338 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 39243 36083 1111 63 0 39180 0
vsize: 156972
[startup+60.0027 s]
Raw data (loadavg): 1.02 1.01 0.93 2/54 9558
Raw data (stat): 9558 (bsolo_lpr-v2) R 9557 7266 7265 0 -1 0 44082 0 0 0 5922 76 0 0 25 0 1 0 896843777 193138688 44002 4294967295 134512640 134716908 3221224560 3221222788 1077414413 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 47153 44002 1111 63 0 47090 0
vsize: 188612
[startup+70.0024 s]
Raw data (loadavg): 1.02 1.01 0.93 2/54 9558
Raw data (stat): 9558 (bsolo_lpr-v2) R 9557 7266 7265 0 -1 0 51972 0 0 0 6910 89 0 0 25 0 1 0 896843777 225533952 51892 4294967295 134512640 134716908 3221224560 3221222788 1077414338 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 55062 51892 1111 63 0 54999 0
vsize: 220248
[startup+80.0029 s]
Raw data (loadavg): 1.02 1.01 0.93 2/54 9558
Raw data (stat): 9558 (bsolo_lpr-v2) R 9557 7266 7265 0 -1 0 60060 0 0 0 7895 104 0 0 25 0 1 0 896843777 258678784 59980 4294967295 134512640 134716908 3221224560 3221222788 1077414374 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 63154 59980 1111 63 0 63091 0
vsize: 252616
[startup+90.003 s]
Raw data (loadavg): 1.01 1.01 0.93 2/54 9558
Raw data (stat): 9558 (bsolo_lpr-v2) R 9557 7266 7265 0 -1 0 68867 0 0 0 8879 120 0 0 25 0 1 0 896843777 294658048 68787 4294967295 134512640 134716908 3221224560 3221222788 1077414383 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 71938 68787 1111 63 0 71875 0
vsize: 287752
[startup+100.003 s]
Raw data (loadavg): 1.01 1.01 0.93 2/54 9558
Raw data (stat): 9558 (bsolo_lpr-v2) R 9557 7266 7265 0 -1 0 77769 0 0 0 9864 136 0 0 25 0 1 0 896843777 331091968 77689 4294967295 134512640 134716908 3221224560 3221223216 134527946 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 80833 77689 1111 63 0 80770 0
vsize: 323332
[startup+110.003 s]
Raw data (loadavg): 1.01 1.00 0.93 2/54 9558
Raw data (stat): 9558 (bsolo_lpr-v2) R 9557 7266 7265 0 -1 0 86223 0 0 0 10850 149 0 0 25 0 1 0 896843777 365727744 86143 4294967295 134512640 134716908 3221224560 3221222788 1077414413 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 89289 86143 1111 63 0 89226 0
vsize: 357156
[startup+120.003 s]
Raw data (loadavg): 1.01 1.00 0.93 2/54 9558
Raw data (stat): 9558 (bsolo_lpr-v2) R 9557 7266 7265 0 -1 0 95312 0 0 0 11836 164 0 0 25 0 1 0 896843777 402907136 95232 4294967295 134512640 134716908 3221224560 3221223216 134527946 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 98366 95232 1111 63 0 98303 0
vsize: 393464
[startup+130.004 s]
Raw data (loadavg): 1.00 1.00 0.93 2/54 9558
Raw data (stat): 9558 (bsolo_lpr-v2) R 9557 7266 7265 0 -1 0 104300 0 0 0 12819 181 0 0 25 0 1 0 896843777 439857152 104220 4294967295 134512640 134716908 3221224560 3221223216 134527932 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 107387 104220 1111 63 0 107324 0
vsize: 429548
[startup+140.003 s]
Raw data (loadavg): 1.00 1.00 0.93 2/54 9558
Raw data (stat): 9558 (bsolo_lpr-v2) R 9557 7266 7265 0 -1 0 113128 0 0 0 13805 196 0 0 25 0 1 0 896843777 475983872 113048 4294967295 134512640 134716908 3221224560 3221223216 134527932 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 116207 113048 1111 63 0 116144 0
vsize: 464828
[startup+150.003 s]
Raw data (loadavg): 1.00 1.00 0.93 2/54 9558
Raw data (stat): 9558 (bsolo_lpr-v2) R 9557 7266 7265 0 -1 0 121984 0 0 0 14789 212 0 0 25 0 1 0 896843777 512266240 121904 4294967295 134512640 134716908 3221224560 3221223216 134527946 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 125065 121904 1111 63 0 125002 0
vsize: 500260
[startup+160.004 s]
Raw data (loadavg): 1.00 1.00 0.93 2/54 9558
Raw data (stat): 9558 (bsolo_lpr-v2) R 9557 7266 7265 0 -1 0 131888 0 0 0 15773 228 0 0 25 0 1 0 896843777 552873984 131808 4294967295 134512640 134716908 3221224560 3221223216 134527932 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 134979 131808 1111 63 0 134916 0
vsize: 539916
[startup+170.004 s]
Raw data (loadavg): 1.00 1.00 0.93 2/54 9558
Raw data (stat): 9558 (bsolo_lpr-v2) R 9557 7266 7265 0 -1 0 141659 0 0 0 16756 245 0 0 25 0 1 0 896843777 592891904 141579 4294967295 134512640 134716908 3221224560 3221222912 134567410 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 144749 141582 1111 63 0 144686 0
vsize: 578996
[startup+180.005 s]
Raw data (loadavg): 1.00 1.00 0.93 2/54 9558
Raw data (stat): 9558 (bsolo_lpr-v2) R 9557 7266 7265 0 -1 0 150911 0 0 0 17741 260 0 0 25 0 1 0 896843777 630816768 150831 4294967295 134512640 134716908 3221224560 3221223216 134527932 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 154008 150831 1111 63 0 153945 0
vsize: 616032
[startup+190.006 s]
Raw data (loadavg): 1.00 1.00 0.93 2/54 9558
Raw data (stat): 9558 (bsolo_lpr-v2) R 9557 7266 7265 0 -1 0 160020 0 0 0 18725 277 0 0 25 0 1 0 896843777 667987968 159940 4294967295 134512640 134716908 3221224560 3221222788 1077414363 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 163083 159940 1111 63 0 163020 0
vsize: 652332
[startup+200.005 s]
Raw data (loadavg): 1.00 1.00 0.93 2/54 9558
Raw data (stat): 9558 (bsolo_lpr-v2) R 9557 7266 7265 0 -1 0 169719 0 0 0 19710 292 0 0 25 0 1 0 896843777 707706880 169639 4294967295 134512640 134716908 3221224560 3221223216 134527946 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 172780 169639 1111 63 0 172717 0
vsize: 691120
[startup+210.005 s]
Raw data (loadavg): 1.00 1.00 0.93 2/54 9558
Raw data (stat): 9558 (bsolo_lpr-v2) R 9557 7266 7265 0 -1 0 179589 0 0 0 20693 309 0 0 25 0 1 0 896843777 748163072 179509 4294967295 134512640 134716908 3221224560 3221223216 134527932 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 182657 179509 1111 63 0 182594 0
vsize: 730628
[startup+220.006 s]
Raw data (loadavg): 1.00 1.00 0.93 2/54 9558
Raw data (stat): 9558 (bsolo_lpr-v2) R 9557 7266 7265 0 -1 0 189459 0 0 0 21673 329 0 0 25 0 1 0 896843777 788627456 189379 4294967295 134512640 134716908 3221224560 3221223216 134527932 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 192536 189379 1111 63 0 192473 0
vsize: 770144
[startup+230.006 s]
Raw data (loadavg): 1.00 1.00 0.93 2/54 9558
Raw data (stat): 9558 (bsolo_lpr-v2) R 9557 7266 7265 0 -1 0 217037 0 2 0 22605 391 0 0 25 0 1 0 896843777 901484544 215050 4294967295 134512640 134716908 3221224560 3221222844 1077399562 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 220089 215050 1111 63 0 220026 0
vsize: 880356
[startup+240.007 s]
Raw data (loadavg): 1.00 1.00 0.93 2/54 9558
Raw data (stat): 9558 (bsolo_lpr-v2) R 9557 7266 7265 0 -1 0 224904 0 64 0 23516 406 0 0 25 0 1 0 896843777 933539840 221376 4294967295 134512640 134716908 3221224560 3221221324 1077195839 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 227915 221376 1111 63 0 227852 0
vsize: 911660
[startup+250.007 s]
Raw data (loadavg): 1.00 1.00 0.93 2/54 9558
Raw data (stat): 9558 (bsolo_lpr-v2) R 9557 7266 7265 0 -1 1028 227733 0 108 0 24424 456 0 0 25 0 1 0 896843777 0 0 4294967295 0 0 0 0 0 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 0 0 0 0 0 0 0
vsize: 0
[startup+250.021 s]
Raw data (loadavg): 1.00 1.00 0.93 1/53 9558
Raw data (stat): 9558 (bsolo_lpr-v2) R 9557 7266 7265 0 -1 1028 227733 0 108 0 24424 456 0 0 25 0 1 0 896843777 0 0 4294967295 0 0 0 0 0 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 0 0 0 0 0 0 0
vsize: 0

Child ended because it received signal 6 (SIGABRT)
Real time (s): 250.021
CPU time (s): 248.828
CPU user time (s): 244.249
CPU system time (s): 4.5793
CPU usage (%): 99.5229
Max. virtual memory (Kb): 911660
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####