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/www.csit.fsu.edu/~burkardt/datasets/mps/normalized-mps-v2-20-10-afiro.opb
MD5SUM27c455853db0a1f70b6ba60ff91cb013
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -4120833
Optimality of the best value was proved NO
Number of terms in the objective function 150
Biggest coefficient in the objective function 134217728000
Number of bits for the biggest coefficient in the objective function 37
Sum of the numbers in the objective function 316753837785
Number of bits of the sum of numbers in the objective function 39
Biggest number in a constraint 1304059445248
Number of bits of the biggest number in a constraint 41
Biggest sum of numbers in a constraint 20964809094075
Number of bits of the biggest sum of numbers45
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1195.14
Number of variables960
Total number of constraints27
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 constraints27
Minimum length of a constraint30
Maximum length of a constraint270

Trace number 10243

Launcher Data

LAUNCH ON wulflinc20 THE 2005-09-23 17:42:09 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8990 boxname=wulflinc20 idbench=786 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  27c455853db0a1f70b6ba60ff91cb013  /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-20-10-afiro.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-20-10-afiro.opb
IDLAUNCH: 8990
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.012
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		: 451.012
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        934968 kB
Buffers:         12240 kB
Cached:          70584 kB
SwapCached:          0 kB
Active:          45836 kB
Inactive:        39872 kB
HighTotal:      131008 kB
HighFree:        55972 kB
LowTotal:       903652 kB
LowFree:        878996 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8332 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 17:43:59 (client local time) WITH STATUS 1 IN 109.509 SECONDS
stats: 8990 7 109.509 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/9030/stat): 9030 (pb2sat) R 9029 9030 4059 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 22070969 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/9030/statm): 373 2 364 364 0 9 0
[pid=9030] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-20-10-afiro.opb

[startup+10.002 s]
Raw data (loadavg): 0.87 0.95 0.94 2/55 9030
Raw data (/proc/9030/stat): 9030 (pb2sat) R 9029 9030 4059 0 -1 0 28644 0 0 0 930 66 0 0 25 0 1 0 22070969 83939328 17482 4294967295 134512640 135987407 3221224560 3221132320 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9030/statm): 20493 17482 364 364 0 20129 0
[pid=9030] vsize: 81972
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 81972

[startup+20.0027 s]
Raw data (loadavg): 0.89 0.95 0.94 2/55 9030
Raw data (/proc/9030/stat): 9030 (pb2sat) R 9029 9030 4059 0 -1 0 59159 0 0 0 1866 128 0 0 25 0 1 0 22070969 180592640 36789 4294967295 134512640 135987407 3221224560 3221136704 134637811 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9030/statm): 44090 36789 364 364 0 43726 0
[pid=9030] vsize: 176360
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 176360

[startup+30.0034 s]
Raw data (loadavg): 0.91 0.95 0.94 2/55 9030
Raw data (/proc/9030/stat): 9030 (pb2sat) R 9029 9030 4059 0 -1 0 101321 0 0 0 2782 208 0 0 25 0 1 0 22070969 312217600 56759 4294967295 134512640 135987407 3221224560 3221141184 134854956 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9030/statm): 76225 56759 364 364 0 75861 0
[pid=9030] vsize: 304900
Current children cumulated CPU time (s) 29.9
Current children cumulated vsize (Kb) 304900

[startup+40.0032 s]
Raw data (loadavg): 0.92 0.96 0.94 2/55 9030
Raw data (/proc/9030/stat): 9030 (pb2sat) R 9029 9030 4059 0 -1 0 118767 0 0 0 3745 244 0 0 25 0 1 0 22070969 369307648 73994 4294967295 134512640 135987407 3221224560 3221139840 134854992 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9030/statm): 90163 73994 364 364 0 89799 0
[pid=9030] vsize: 360652
Current children cumulated CPU time (s) 39.89
Current children cumulated vsize (Kb) 360652

[startup+50.0049 s]
Raw data (loadavg): 0.93 0.96 0.94 2/55 9030
Raw data (/proc/9030/stat): 9030 (pb2sat) R 9029 9030 4059 0 -1 0 144481 0 0 0 4695 291 0 0 25 0 1 0 22070969 548831232 99218 4294967295 134512640 135987407 3221224560 3221144896 134854897 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9030/statm): 133992 99218 364 364 0 133628 0
[pid=9030] vsize: 535968
Current children cumulated CPU time (s) 49.86
Current children cumulated vsize (Kb) 535968

[startup+60.0056 s]
Raw data (loadavg): 0.94 0.96 0.94 2/55 9030
Raw data (/proc/9030/stat): 9030 (pb2sat) R 9029 9030 4059 0 -1 0 202609 0 0 0 5569 413 0 0 25 0 1 0 22070969 631717888 113463 4294967295 134512640 135987407 3221224560 3221148784 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9030/statm): 154228 113463 364 364 0 153864 0
[pid=9030] vsize: 616912
Current children cumulated CPU time (s) 59.82
Current children cumulated vsize (Kb) 616912

[startup+70.0064 s]
Raw data (loadavg): 0.95 0.96 0.94 2/55 9030
Raw data (/proc/9030/stat): 9030 (pb2sat) R 9029 9030 4059 0 -1 0 218586 0 0 0 6538 444 0 0 25 0 1 0 22070969 686915584 129247 4294967295 134512640 135987407 3221224560 3221149420 134636982 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9030/statm): 167704 129247 364 364 0 167340 0
[pid=9030] vsize: 670816
Current children cumulated CPU time (s) 69.82
Current children cumulated vsize (Kb) 670816

[startup+80.0071 s]
Raw data (loadavg): 0.96 0.96 0.94 2/55 9030
Raw data (/proc/9030/stat): 9030 (pb2sat) R 9029 9030 4059 0 -1 0 237229 0 0 0 7500 480 0 0 25 0 1 0 22070969 711528448 147662 4294967295 134512640 135987407 3221224560 3221150368 134878092 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9030/statm): 173713 147662 364 364 0 173349 0
[pid=9030] vsize: 694852
Current children cumulated CPU time (s) 79.8
Current children cumulated vsize (Kb) 694852

[startup+90.0068 s]
Raw data (loadavg): 0.96 0.96 0.94 2/55 9030
Raw data (/proc/9030/stat): 9030 (pb2sat) R 9029 9030 4059 0 -1 0 255974 0 0 0 8462 515 0 0 25 0 1 0 22070969 736296960 166179 4294967295 134512640 135987407 3221224560 3221151712 134878684 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9030/statm): 179760 166179 364 364 0 179396 0
[pid=9030] vsize: 719040
Current children cumulated CPU time (s) 89.77
Current children cumulated vsize (Kb) 719040

[startup+100.008 s]
Raw data (loadavg): 0.97 0.96 0.94 2/55 9030
Raw data (/proc/9030/stat): 9030 (pb2sat) R 9029 9030 4059 0 -1 0 270781 0 0 0 9431 544 0 0 25 0 1 0 22070969 806232064 180805 4294967295 134512640 135987407 3221224560 3221154156 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9030/statm): 196834 180805 364 364 0 196470 0
[pid=9030] vsize: 787336
Current children cumulated CPU time (s) 99.75
Current children cumulated vsize (Kb) 787336
One traced child (pid=9030) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 109.762
CPU time (s): 109.509
CPU user time (s): 103.571
CPU system time (s): 5.9381
CPU usage (%): 99.7702
Max. virtual memory (cumulated for all children) (Kb): 787336

Verifier Data

ERROR: no interpretation found !