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).
    Note that some very long lines in this section may be truncated by your web browser !
  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

Namemps-v2-20-10/MIPLIB/miplib2003/normalized-mps-v2-20-10-atlanta-ip.opb
MD5SUM0a1ff370c051d88127ca8cdb722ca490
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
Satisfiable
(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 benchmark
Best CPU time to get the best result obtained on this benchmark
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 10006

Launcher Data

LAUNCH ON wulflinc2 THE 2005-09-23 16:28:59 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8764 boxname=wulflinc2 idbench=560 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  0a1ff370c051d88127ca8cdb722ca490  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-atlanta-ip.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-atlanta-ip.opb
IDLAUNCH: 8764
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.261
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		: 451.261
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:        884516 kB
Buffers:         16660 kB
Cached:         113356 kB
SwapCached:          0 kB
Active:          58272 kB
Inactive:        74644 kB
HighTotal:      131008 kB
HighFree:        21560 kB
LowTotal:       903652 kB
LowFree:        862956 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              52 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            11580 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:31:12 (client local time) WITH STATUS 1 IN 132.108 SECONDS
stats: 8764 7 132.108 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	St9bad_alloc

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/9160/stat): 9160 (pb2sat) R 9159 9160 4070 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21652128 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/9160/statm): 373 2 364 364 0 9 0
[pid=9160] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-atlanta-ip.opb

[startup+10.0017 s]
Raw data (loadavg): 0.93 0.96 0.98 2/55 9160
Raw data (/proc/9160/stat): 9160 (pb2sat) R 9159 9160 4070 0 -1 0 2217 0 0 0 992 6 0 0 25 0 1 0 21652128 8691712 1536 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9160/statm): 2122 1536 364 364 0 1758 0
[pid=9160] vsize: 8488
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 8488

[startup+20.0024 s]
Raw data (loadavg): 0.94 0.96 0.98 2/55 9160
Raw data (/proc/9160/stat): 9160 (pb2sat) R 9159 9160 4070 0 -1 0 2881 0 0 0 1989 8 0 0 25 0 1 0 21652128 10313728 2189 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9160/statm): 2518 2189 364 364 0 2154 0
[pid=9160] vsize: 10072
Current children cumulated CPU time (s) 19.97
Current children cumulated vsize (Kb) 10072

[startup+30.0021 s]
Raw data (loadavg): 0.95 0.96 0.98 2/55 9160
Raw data (/proc/9160/stat): 9160 (pb2sat) R 9159 9160 4070 0 -1 0 18517 0 0 0 2948 47 0 0 25 0 1 0 21652128 59191296 11950 4294967295 134512640 135987407 3221224560 3221194620 135499903 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9160/statm): 14451 11950 364 364 0 14087 0
[pid=9160] vsize: 57804
Current children cumulated CPU time (s) 29.95
Current children cumulated vsize (Kb) 57804

[startup+40.0028 s]
Raw data (loadavg): 0.96 0.96 0.98 2/55 9160
Raw data (/proc/9160/stat): 9160 (pb2sat) R 9159 9160 4070 0 -1 0 49986 0 0 0 3879 113 0 0 25 0 1 0 21652128 195960832 33730 4294967295 134512640 135987407 3221224560 3221193856 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9160/statm): 47842 33734 364 364 0 47478 0
[pid=9160] vsize: 191368
Current children cumulated CPU time (s) 39.92
Current children cumulated vsize (Kb) 191368

[startup+50.0035 s]
Raw data (loadavg): 0.96 0.96 0.98 2/55 9160
Raw data (/proc/9160/stat): 9160 (pb2sat) R 9159 9160 4070 0 -1 0 85145 0 0 0 4810 179 0 0 25 0 1 0 21652128 270249984 52831 4294967295 134512640 135987407 3221224560 3221199876 134789776 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9160/statm): 65979 52831 364 364 0 65615 0
[pid=9160] vsize: 263916
Current children cumulated CPU time (s) 49.89
Current children cumulated vsize (Kb) 263916

[startup+60.0032 s]
Raw data (loadavg): 0.97 0.96 0.98 2/55 9160
Raw data (/proc/9160/stat): 9160 (pb2sat) R 9159 9160 4070 0 -1 0 114052 0 0 0 5751 236 0 0 25 0 1 0 21652128 376848384 69247 4294967295 134512640 135987407 3221224560 3221198476 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9160/statm): 92004 69249 364 364 0 91640 0
[pid=9160] vsize: 368016
Current children cumulated CPU time (s) 59.87
Current children cumulated vsize (Kb) 368016

[startup+70.0029 s]
Raw data (loadavg): 0.97 0.96 0.98 2/55 9160
Raw data (/proc/9160/stat): 9160 (pb2sat) R 9159 9160 4070 0 -1 0 133934 0 0 0 6706 278 0 0 25 0 1 0 21652128 405123072 88893 4294967295 134512640 135987407 3221224560 3221206524 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9160/statm): 98907 88893 364 364 0 98543 0
[pid=9160] vsize: 395628
Current children cumulated CPU time (s) 69.84
Current children cumulated vsize (Kb) 395628

[startup+80.0036 s]
Raw data (loadavg): 0.98 0.96 0.98 2/55 9160
Raw data (/proc/9160/stat): 9160 (pb2sat) R 9159 9160 4070 0 -1 0 177352 0 0 0 7618 362 0 0 25 0 1 0 21652128 544333824 112701 4294967295 134512640 135987407 3221224560 3221208496 134878060 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9160/statm): 132894 112702 364 364 0 132530 0
[pid=9160] vsize: 531576
Current children cumulated CPU time (s) 79.8
Current children cumulated vsize (Kb) 531576

[startup+90.0043 s]
Raw data (loadavg): 0.98 0.96 0.98 2/55 9160
Raw data (/proc/9160/stat): 9160 (pb2sat) R 9159 9160 4070 0 -1 0 213740 0 0 0 8535 443 0 0 25 0 1 0 21652128 658173952 124355 4294967295 134512640 135987407 3221224560 3221154208 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9160/statm): 160687 124355 364 364 0 160323 0
[pid=9160] vsize: 642748
Current children cumulated CPU time (s) 89.78
Current children cumulated vsize (Kb) 642748

[startup+100.004 s]
Raw data (loadavg): 0.98 0.96 0.98 2/55 9160
Raw data (/proc/9160/stat): 9160 (pb2sat) R 9159 9160 4070 0 -1 0 225203 0 0 0 9510 468 0 0 25 0 1 0 21652128 691863552 135612 4294967295 134512640 135987407 3221224560 3221191580 135484829 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9160/statm): 168912 135612 364 364 0 168548 0
[pid=9160] vsize: 675648
Current children cumulated CPU time (s) 99.78
Current children cumulated vsize (Kb) 675648

[startup+110.004 s]
Raw data (loadavg): 0.98 0.97 0.98 2/55 9160
Raw data (/proc/9160/stat): 9160 (pb2sat) R 9159 9160 4070 0 -1 0 237928 0 0 0 10481 497 0 0 25 0 1 0 21652128 691863552 148112 4294967295 134512640 135987407 3221224560 3221202232 134802665 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9160/statm): 168912 148112 364 364 0 168548 0
[pid=9160] vsize: 675648
Current children cumulated CPU time (s) 109.78
Current children cumulated vsize (Kb) 675648

[startup+120.004 s]
Raw data (loadavg): 0.99 0.97 0.98 2/55 9160
Raw data (/proc/9160/stat): 9160 (pb2sat) R 9159 9160 4070 0 -1 0 250844 0 0 0 11456 522 0 0 25 0 1 0 21652128 745844736 160815 4294967295 134512640 135987407 3221224560 3221195296 134877638 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9160/statm): 182091 160815 364 364 0 181727 0
[pid=9160] vsize: 728364
Current children cumulated CPU time (s) 119.78
Current children cumulated vsize (Kb) 728364

[startup+130.004 s]
Raw data (loadavg): 0.99 0.97 0.98 2/55 9160
Raw data (/proc/9160/stat): 9160 (pb2sat) R 9159 9160 4070 0 -1 0 259521 0 0 0 12423 554 0 0 25 0 1 0 21652128 394833920 95946 4294967295 134512640 135987407 3221224560 3221223224 135477314 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9160/statm): 96395 95946 364 364 0 96031 0
[pid=9160] vsize: 385580
Current children cumulated CPU time (s) 129.77
Current children cumulated vsize (Kb) 385580
One traced child (pid=9160) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 132.334
CPU time (s): 132.108
CPU user time (s): 126.359
CPU system time (s): 5.74913
CPU usage (%): 99.8294
Max. virtual memory (cumulated for all children) (Kb): 728364

Verifier Data

ERROR: no interpretation found !