PB'05 competition: run trace

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:

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.
SOLVER DATA
This is the output of the solver (stdout and stderr).
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.
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

Name	normalized-opb/mps-v2-13-7/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-gfrd-pnc.opb
MD5SUM	f72ff83237646045e70c745d89efd15d
Bench Category	optimization, big integers (OPTBIGINT)
Has Objective Function	YES
Satisfiable	NO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function	18728
Biggest coefficient in the objective function	1050225536
Number of bits for the biggest coefficient in the objective function	30
Sum of the numbers in the objective function	456113132475
Number of bits of the sum of numbers in the objective function	39
Biggest number in a constraint	1050225536
Number of bits of the biggest number in a constraint	30
Biggest sum of numbers in a constraint	456113132475
Number of bits of the biggest sum of numbers	39
Best result obtained on this benchmark	UNSAT
Best CPU time to get the best result obtained on this benchmark	0.146977
Number of variables	18774
Total number of constraints	874
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	0
Number of constraints which are nor clauses,nor cardinality constraints	874
Minimum length of a constraint	8
Maximum length of a constraint	168

Trace number 42701

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-06-16 13:58:28 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25920 boxname=wulflinc1 idbench=1220 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  f72ff83237646045e70c745d89efd15d  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-gfrd-pnc.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-gfrd-pnc.opb
IDLAUNCH: 25920
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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		: 451.053
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:        735160 kB
Buffers:         18416 kB
Cached:         256576 kB
SwapCached:       1156 kB
Active:          24380 kB
Inactive:       252892 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        734908 kB
SwapTotal:     2097136 kB
SwapFree:      2094896 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5364 kB
Slab:            16464 kB
Committed_AS:    92720 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 14:00:23 (client local time) WITH STATUS 1 IN 115.551 SECONDS
stats: 25920 7 115.551 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	trivial falsity
#### 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 0.98 0.92 2/55 20066
Raw data (stat): 20066 (runsolver) R 20065 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 914447702 884736 94 4294967295 134512640 135332820 3221224464 3221219644 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 0.98 0.92 2/55 20066
Raw data (stat): 20066 (pb2sat-v2) R 20065 8378 8377 0 -1 0 13852 0 0 0 972 28 0 0 25 0 1 0 914447702 42180608 8333 4294967295 134512640 135730672 3221224576 3221203616 134786812 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 10298 8333 301 301 0 9997 0
vsize: 41192
[startup+20.0015 s]
Raw data (loadavg): 1.05 0.98 0.92 2/55 20066
Raw data (stat): 20066 (pb2sat-v2) R 20065 8378 8377 0 -1 0 41516 0 0 0 1919 80 0 0 25 0 1 0 914447702 124448768 25427 4294967295 134512640 135730672 3221224576 3221206556 134787556 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 30383 25427 301 301 0 30082 0
vsize: 121532
[startup+30.0023 s]
Raw data (loadavg): 1.04 0.98 0.92 2/55 20066
Raw data (stat): 20066 (pb2sat-v2) R 20065 8378 8377 0 -1 0 61198 0 0 0 2879 120 0 0 25 0 1 0 914447702 179249152 38765 4294967295 134512640 135730672 3221224576 3221204064 134770145 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43762 38765 301 301 0 43461 0
vsize: 175048
[startup+40.0021 s]
Raw data (loadavg): 1.03 0.98 0.92 2/55 20066
Raw data (stat): 20066 (pb2sat-v2) R 20065 8378 8377 0 -1 0 93135 0 0 0 3815 184 0 0 25 0 1 0 914447702 272953344 48520 4294967295 134512640 135730672 3221224576 3221204480 135284091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 66639 48520 301 301 0 66338 0
vsize: 266556
[startup+50.002 s]
Raw data (loadavg): 1.03 0.98 0.92 2/55 20066
Raw data (stat): 20066 (pb2sat-v2) R 20065 8378 8377 0 -1 0 108220 0 0 0 4787 213 0 0 25 0 1 0 914447702 326107136 63410 4294967295 134512640 135730672 3221224576 3221213044 135281112 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 79616 63410 301 301 0 79315 0
vsize: 318464
[startup+60.0027 s]
Raw data (loadavg): 1.02 0.98 0.92 2/55 20066
Raw data (stat): 20066 (pb2sat-v2) R 20065 8378 8377 0 -1 0 144563 0 0 0 5725 275 0 0 25 0 1 0 914447702 507346944 98547 4294967295 134512640 135730672 3221224576 3221203616 135282716 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 123864 98547 301 301 0 123563 0
vsize: 495456
[startup+70.004 s]
Raw data (loadavg): 1.02 0.98 0.92 2/55 20066
Raw data (stat): 20066 (pb2sat-v2) R 20065 8378 8377 0 -1 0 169783 0 0 0 6678 322 0 0 25 0 1 0 914447702 641564672 105176 4294967295 134512640 135730672 3221224576 3221207504 134788537 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 156632 105176 301 301 0 156331 0
vsize: 626528
[startup+80.0143 s]
Raw data (loadavg): 1.02 0.98 0.92 2/55 20066
Raw data (stat): 20066 (pb2sat-v2) R 20065 8378 8377 0 -1 0 188464 0 0 0 7635 367 0 0 25 0 1 0 914447702 574451712 99088 4294967295 134512640 135730672 3221224576 3221202072 135348185 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 140247 99088 301 301 0 139946 0
vsize: 560988
[startup+90.0141 s]
Raw data (loadavg): 1.01 0.98 0.92 2/55 20066
Raw data (stat): 20066 (pb2sat-v2) R 20065 8378 8377 0 -1 0 198965 0 0 0 8614 387 0 0 25 0 1 0 914447702 574451712 109389 4294967295 134512640 135730672 3221224576 3221205956 134787114 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 140247 109389 301 301 0 139946 0
vsize: 560988
[startup+100.014 s]
Raw data (loadavg): 1.09 0.99 0.92 2/55 20119
Raw data (stat): 20066 (pb2sat-v2) R 20065 8378 8377 0 -1 0 213437 0 0 0 9583 418 0 0 25 0 1 0 914447702 588533760 123649 4294967295 134512640 135730672 3221224576 3221186008 135301581 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 143685 123649 301 301 0 143384 0
vsize: 574740
[startup+110.023 s]
Raw data (loadavg): 1.16 1.01 0.93 2/55 20119
Raw data (stat): 20066 (pb2sat-v2) R 20065 8378 8377 0 -1 0 224574 0 0 0 10545 458 0 0 25 0 1 0 914447702 278024192 66580 4294967295 134512640 135730672 3221224576 3221222764 135281206 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 67877 66580 301 301 0 67576 0
vsize: 271508
[startup+115.547 s]
Raw data (loadavg): 1.22 1.03 0.93 1/54 20119
Raw data (stat): 20066 (pb2sat-v2) R 20065 8378 8377 0 -1 0 224574 0 0 0 10545 458 0 0 25 0 1 0 914447702 278024192 66580 4294967295 134512640 135730672 3221224576 3221222764 135281206 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 67877 66580 301 301 0 67576 0
vsize: 0

Child status: 1
Real time (s): 115.546
CPU time (s): 115.551
CPU user time (s): 110.83
CPU system time (s): 4.72128
CPU usage (%): 100.004
Max. virtual memory (Kb): 626528
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####