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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-modszk1.opb
MD5SUM4c80436c6cab58e82888f1a9aa37d4f5
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 29700
Biggest coefficient in the objective function 197378980184064000
Number of bits for the biggest coefficient in the objective function 58
Sum of the numbers in the objective function -3892337408572559116
Number of bits of the sum of numbers in the objective function 64
Biggest number in a constraint 197378980184064000
Number of bits of the biggest number in a constraint 58
Biggest sum of numbers in a constraint -3892337408572559116
Number of bits of the biggest sum of numbers64
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables48602
Total number of constraints686
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 constraints686
Minimum length of a constraint30
Maximum length of a constraint600

Trace number 9899

Launcher Data

LAUNCH ON wulflinc29 THE 2005-09-23 16:07:30 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8648 boxname=wulflinc29 idbench=444 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  4c80436c6cab58e82888f1a9aa37d4f5  /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-20-10-modszk1.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-20-10-modszk1.opb
IDLAUNCH: 8648
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.077
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	: 3
cpu MHz		: 451.077
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:        926240 kB
Buffers:         11544 kB
Cached:          79576 kB
SwapCached:          0 kB
Active:          47024 kB
Inactive:        46992 kB
HighTotal:      131008 kB
HighFree:        51828 kB
LowTotal:       903652 kB
LowFree:        874412 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6976 kB
Slab:             8756 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:09:31 (client local time) WITH STATUS 1 IN 120.951 SECONDS
stats: 8648 7 120.951 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/8213/stat): 8213 (pb2sat) R 8212 8213 4005 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21464832 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8213/statm): 373 2 364 364 0 9 0
[pid=8213] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-20-10-modszk1.opb

[startup+10.0016 s]
Raw data (loadavg): 0.94 0.98 0.95 2/55 8213
Raw data (/proc/8213/stat): 8213 (pb2sat) R 8212 8213 4005 0 -1 0 2566 0 0 0 991 6 0 0 25 0 1 0 21464832 9506816 1879 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8213/statm): 2321 1879 364 364 0 1957 0
[pid=8213] vsize: 9284
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 9284

[startup+20.0024 s]
Raw data (loadavg): 0.95 0.98 0.95 2/55 8213
Raw data (/proc/8213/stat): 8213 (pb2sat) R 8212 8213 4005 0 -1 0 17703 0 0 0 1955 41 0 0 25 0 1 0 21464832 73486336 12018 4294967295 134512640 135987407 3221224560 3221184192 135499873 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8213/statm): 17941 12018 364 364 0 17577 0
[pid=8213] vsize: 71764
Current children cumulated CPU time (s) 19.96
Current children cumulated vsize (Kb) 71764

[startup+30.0032 s]
Raw data (loadavg): 0.95 0.98 0.95 2/55 8213
Raw data (/proc/8213/stat): 8213 (pb2sat) R 8212 8213 4005 0 -1 0 54041 0 0 0 2879 113 0 0 25 0 1 0 21464832 169320448 31670 4294967295 134512640 135987407 3221224560 3221189712 134637036 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8213/statm): 41338 31670 364 364 0 40974 0
[pid=8213] vsize: 165352
Current children cumulated CPU time (s) 29.92
Current children cumulated vsize (Kb) 165352

[startup+40.003 s]
Raw data (loadavg): 0.96 0.98 0.95 2/55 8213
Raw data (/proc/8213/stat): 8213 (pb2sat) R 8212 8213 4005 0 -1 0 85622 0 0 0 3813 176 0 0 25 0 1 0 21464832 270249984 53326 4294967295 134512640 135987407 3221224560 3221194412 134637031 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8213/statm): 65979 53326 364 364 0 65615 0
[pid=8213] vsize: 263916
Current children cumulated CPU time (s) 39.89
Current children cumulated vsize (Kb) 263916

[startup+50.0048 s]
Raw data (loadavg): 0.97 0.98 0.95 2/55 8213
Raw data (/proc/8213/stat): 8213 (pb2sat) R 8212 8213 4005 0 -1 0 114866 0 0 0 4751 236 0 0 25 0 1 0 21464832 377135104 70070 4294967295 134512640 135987407 3221224560 3221198108 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8213/statm): 92074 70070 364 364 0 91710 0
[pid=8213] vsize: 368296
Current children cumulated CPU time (s) 49.87
Current children cumulated vsize (Kb) 368296

[startup+60.0056 s]
Raw data (loadavg): 0.97 0.98 0.95 2/55 8213
Raw data (/proc/8213/stat): 8213 (pb2sat) R 8212 8213 4005 0 -1 0 129577 0 0 0 5721 265 0 0 25 0 1 0 21464832 390574080 84564 4294967295 134512640 135987407 3221224560 3221183728 134537562 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8213/statm): 95355 84564 364 364 0 94991 0
[pid=8213] vsize: 381420
Current children cumulated CPU time (s) 59.86
Current children cumulated vsize (Kb) 381420

[startup+70.0064 s]
Raw data (loadavg): 0.97 0.98 0.95 2/55 8213
Raw data (/proc/8213/stat): 8213 (pb2sat) R 8212 8213 4005 0 -1 0 169689 0 0 0 6637 345 0 0 25 0 1 0 21464832 516960256 105064 4294967295 134512640 135987407 3221224560 3221192460 134669188 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8213/statm): 126211 105064 364 364 0 125847 0
[pid=8213] vsize: 504844
Current children cumulated CPU time (s) 69.82
Current children cumulated vsize (Kb) 504844

[startup+80.0071 s]
Raw data (loadavg): 0.98 0.98 0.95 2/55 8213
Raw data (/proc/8213/stat): 8213 (pb2sat) R 8212 8213 4005 0 -1 0 205267 0 0 0 7557 425 0 0 25 0 1 0 21464832 618299392 115864 4294967295 134512640 135987407 3221224560 3221193520 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8213/statm): 150952 115864 364 364 0 150588 0
[pid=8213] vsize: 603808
Current children cumulated CPU time (s) 79.82
Current children cumulated vsize (Kb) 603808

[startup+90.0069 s]
Raw data (loadavg): 0.98 0.98 0.95 2/55 8213
Raw data (/proc/8213/stat): 8213 (pb2sat) R 8212 8213 4005 0 -1 0 217590 0 0 0 8531 450 0 0 25 0 1 0 21464832 658477056 127988 4294967295 134512640 135987407 3221224560 3221197088 134862192 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8213/statm): 160761 127988 364 364 0 160397 0
[pid=8213] vsize: 643044
Current children cumulated CPU time (s) 89.81
Current children cumulated vsize (Kb) 643044

[startup+100.008 s]
Raw data (loadavg): 0.98 0.98 0.95 2/55 8213
Raw data (/proc/8213/stat): 8213 (pb2sat) R 8212 8213 4005 0 -1 0 229815 0 0 0 9505 476 0 0 25 0 1 0 21464832 663896064 140008 4294967295 134512640 135987407 3221224560 3221183996 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8213/statm): 162084 140008 364 364 0 161720 0
[pid=8213] vsize: 648336
Current children cumulated CPU time (s) 99.81
Current children cumulated vsize (Kb) 648336

[startup+110.008 s]
Raw data (loadavg): 0.99 0.98 0.95 2/55 8213
Raw data (/proc/8213/stat): 8213 (pb2sat) R 8212 8213 4005 0 -1 0 242648 0 0 0 10482 499 0 0 25 0 1 0 21464832 664756224 152603 4294967295 134512640 135987407 3221224560 3221190080 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8213/statm): 162294 152603 364 364 0 161930 0
[pid=8213] vsize: 649176
Current children cumulated CPU time (s) 109.81
Current children cumulated vsize (Kb) 649176

[startup+120.009 s]
Raw data (loadavg): 0.99 0.98 0.95 2/55 8213
Raw data (/proc/8213/stat): 8213 (pb2sat) R 8212 8213 4005 0 -1 0 248342 0 0 0 11457 523 0 0 25 0 1 0 21464832 356925440 86633 4294967295 134512640 135987407 3221224560 3221223408 134884004 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8213/statm): 87140 86633 364 364 0 86776 0
[pid=8213] vsize: 348560
Current children cumulated CPU time (s) 119.8
Current children cumulated vsize (Kb) 348560
One traced child (pid=8213) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 121.146
CPU time (s): 120.951
CPU user time (s): 115.528
CPU system time (s): 5.42217
CPU usage (%): 99.8385
Max. virtual memory (cumulated for all children) (Kb): 649176

Verifier Data

ERROR: no interpretation found !