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/web/uclid_pb_benchmarks/normalized-ooo.burch_dill.2.accl.ucl.opb
MD5SUM	83f02a556772ce851c726a7388954d36
Bench Category	no optimization function (SAT)
Has Objective Function	NO
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	0
Biggest coefficient in the objective function	0
Number of bits for the biggest coefficient in the objective function	0
Sum of the numbers in the objective function	0
Number of bits of the sum of numbers in the objective function	0
Biggest number in a constraint	35
Number of bits of the biggest number in a constraint	6
Biggest sum of numbers in a constraint	129
Number of bits of the biggest sum of numbers	8
Best result obtained on this benchmark	UNSAT
Best CPU time to get the best result obtained on this benchmark	3.58545
Number of variables	2152
Total number of constraints	5613
Number of constraints which are clauses	5137
Number of constraints which are cardinality constraints (but not clauses)	0
Number of constraints which are nor clauses,nor cardinality constraints	476
Minimum length of a constraint	1
Maximum length of a constraint	11

Trace number 40839

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-08 23:02:56 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=28910 boxname=wulflinc3 idbench=296 idsolver=21 numberseed=0
MD5SUM SOLVER: 174a32271cb3bba0a277d6d7724e60fb  /oldhome/oroussel/solvers/bsolo_lpr_cuts-v2
MD5SUM BENCH:  83f02a556772ce851c726a7388954d36  /oldhome/oroussel/tmp/wulflinc3/normalized-ooo.burch_dill.2.accl.ucl.opb
REAL COMMAND:  bsolo_lpr_cuts-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-ooo.burch_dill.2.accl.ucl.opb
IDLAUNCH: 28910
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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:        909064 kB
Buffers:         18284 kB
Cached:          83992 kB
SwapCached:       3464 kB
Active:          27416 kB
Inactive:        79576 kB
HighTotal:      131008 kB
HighFree:        54488 kB
LowTotal:       903652 kB
LowFree:        854576 kB
SwapTotal:     2097136 kB
SwapFree:      2092672 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5012 kB
Slab:            12728 kB
Committed_AS:    71796 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-08 23:04:45 (client local time) WITH STATUS 20 IN 108.821 SECONDS
stats: 28910 7 108.821 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c INFO: No cost function. Find solution and finish.
c Initial problem consists of 2152 variables and 5613 constraints.
c After prepocess the problem consists of 1740 variables and 4667 constraints.
c preprocess terminated 14.891 s
c Not use computed LB before first solution.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 108.799 s
#### 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): 0.87 0.95 0.90 2/54 1010
Raw data (stat): 1010 (runsolver) R 1009 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 905434298 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+10.0006 s]
Raw data (loadavg): 0.89 0.96 0.91 2/54 1010
Raw data (stat): 1010 (bsolo_lpr_cuts-) R 1009 20224 20223 0 -1 0 3101 0 0 0 990 8 0 0 25 0 1 0 905434298 15904768 3019 4294967295 134512640 134716908 3221224560 3221223112 134542829 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 3883 3019 1111 63 0 3820 0
vsize: 15532
[startup+20.0009 s]
Raw data (loadavg): 0.91 0.96 0.91 2/54 1010
Raw data (stat): 1010 (bsolo_lpr_cuts-) R 1009 20224 20223 0 -1 0 3701 0 0 0 1986 11 0 0 25 0 1 0 905434298 18251776 3619 4294967295 134512640 134716908 3221224560 3221223200 134543110 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4456 3619 1111 63 0 4393 0
vsize: 17824
[startup+30.0018 s]
Raw data (loadavg): 0.92 0.96 0.91 2/54 1010
Raw data (stat): 1010 (bsolo_lpr_cuts-) R 1009 20224 20223 0 -1 0 3779 0 0 0 2985 12 0 0 25 0 1 0 905434298 18657280 3697 4294967295 134512640 134716908 3221224560 3221223168 134543759 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4555 3697 1111 63 0 4492 0
vsize: 18220
[startup+40.0028 s]
Raw data (loadavg): 0.93 0.96 0.91 2/54 1010
Raw data (stat): 1010 (bsolo_lpr_cuts-) R 1009 20224 20223 0 -1 0 4182 0 0 0 3983 14 0 0 25 0 1 0 905434298 20279296 4100 4294967295 134512640 134716908 3221224560 3221223200 134698449 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 4951 4100 1111 63 0 4888 0
vsize: 19804
[startup+50.0033 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 1010
Raw data (stat): 1010 (bsolo_lpr_cuts-) R 1009 20224 20223 0 -1 0 4415 0 0 0 4982 16 0 0 25 0 1 0 905434298 21221376 4333 4294967295 134512640 134716908 3221224560 3221223152 134698465 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 5181 4333 1111 63 0 5118 0
vsize: 20724
[startup+60.0035 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 1010
Raw data (stat): 1010 (bsolo_lpr_cuts-) R 1009 20224 20223 0 -1 0 4720 0 0 0 5981 17 0 0 25 0 1 0 905434298 22437888 4638 4294967295 134512640 134716908 3221224560 3221223216 134536638 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 5478 4638 1111 63 0 5415 0
vsize: 21912
[startup+70.0043 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 1010
Raw data (stat): 1010 (bsolo_lpr_cuts-) R 1009 20224 20223 0 -1 0 4977 0 0 0 6980 18 0 0 25 0 1 0 905434298 23519232 4895 4294967295 134512640 134716908 3221224560 3221223176 134543614 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 5742 4895 1111 63 0 5679 0
vsize: 22968
[startup+80.0048 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 1010
Raw data (stat): 1010 (bsolo_lpr_cuts-) R 1009 20224 20223 0 -1 0 5259 0 0 0 7978 20 0 0 25 0 1 0 905434298 24600576 5177 4294967295 134512640 134716908 3221224560 3221223164 134536842 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 6006 5177 1111 63 0 5943 0
vsize: 24024
[startup+90.0047 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 1010
Raw data (stat): 1010 (bsolo_lpr_cuts-) R 1009 20224 20223 0 -1 0 5558 0 0 0 8976 22 0 0 25 0 1 0 905434298 25948160 5476 4294967295 134512640 134716908 3221224560 3221223148 134542288 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 6335 5476 1111 63 0 6272 0
vsize: 25340
[startup+100.005 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 1010
Raw data (stat): 1010 (bsolo_lpr_cuts-) R 1009 20224 20223 0 -1 0 5860 0 0 0 9975 24 0 0 25 0 1 0 905434298 27164672 5778 4294967295 134512640 134716908 3221224560 3221223484 1077781665 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 6632 5778 1111 63 0 6569 0
vsize: 26528
[startup+108.829 s]
Raw data (loadavg): 0.98 0.97 0.91 1/53 1010
Raw data (stat): 1010 (bsolo_lpr_cuts-) R 1009 20224 20223 0 -1 0 5860 0 0 0 9975 24 0 0 25 0 1 0 905434298 27164672 5778 4294967295 134512640 134716908 3221224560 3221223484 1077781665 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 6632 5778 1111 63 0 6569 0
vsize: 0

Child status: 20
Real time (s): 108.828
CPU time (s): 108.821
CPU user time (s): 108.555
CPU system time (s): 0.265959
CPU usage (%): 99.9936
Max. virtual memory (Kb): 26528
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####