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/submitted/manquinho/primes-dimacs-cnf/normalized-par8-1-c.opb
MD5SUM	d9a63c7afff520ea91d829bc19bcd084
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	64
Optimality of the best value was proved	NO
Number of terms in the objective function	128
Biggest coefficient in the objective function	1
Number of bits for the biggest coefficient in the objective function	1
Sum of the numbers in the objective function	128
Number of bits of the sum of numbers in the objective function	8
Biggest number in a constraint	1
Number of bits of the biggest number in a constraint	1
Biggest sum of numbers in a constraint	128
Number of bits of the biggest sum of numbers	8
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	0.020996
Number of variables	128
Total number of constraints	318
Number of constraints which are clauses	318
Number of constraints which are cardinality constraints (but not clauses)	0
Number of constraints which are nor clauses,nor cardinality constraints	0
Minimum length of a constraint	2
Maximum length of a constraint	3

Trace number 33648

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-05-27 15:27:04 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=1916 boxname=wulflinc3 idbench=213 idsolver=8 numberseed=0
MD5SUM SOLVER: 4b637b3b6117f2add1a6288e91336322  /oldhome/oroussel/solvers/vallstSAT2005PB.sh
MD5SUM BENCH:  d9a63c7afff520ea91d829bc19bcd084  /oldhome/oroussel/tmp/wulflinc3/normalized-par8-1-c.opb
REAL COMMAND:  vallstSAT2005PB.sh /oldhome/oroussel/tmp/wulflinc3/normalized-par8-1-c.opb 0
IDLAUNCH: 1916
/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:        527592 kB
Buffers:         30544 kB
Cached:         456316 kB
SwapCached:         20 kB
Active:          41976 kB
Inactive:       447560 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        527340 kB
SwapTotal:     2097136 kB
SwapFree:      2096780 kB
Dirty:             108 kB
Writeback:           0 kB
Mapped:           6584 kB
Slab:            11780 kB
Committed_AS:    71752 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-27 15:27:05 (client local time) WITH STATUS 30 IN 0.19297 SECONDS
stats: 1916 0 0.19297 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
1:
seed: 0
Nr of vars set: 0  (#equs: 0)
Nr of vars set: 128  (#equs: 40)
#decisions: 0;  #end-nodes: 0;
#proof improvement attempts: 0;  #restarts: 0
Current batch, end-nodes: 0 / 80 (80)
#axs: 359, #non-axs: 0
tight: meta-meta: start: 6, end: 9;  meta: start: 12, end (keep): 23
loose: meta-meta: start: 9, end: 14;  meta: start: 30, end (keep): 50
result: model found (1)
Model found with constant:  63 (64:>=*);
Model found with constant:
  (pushed:) 4294967295 (128:>=*)

With an increment of the last pushed constant, a proof of false was found.
result: proof of false found (0)
seed: 0
Nr of vars set: 128  (#equs: 40)
Time taken in milliseconds: 20
times:
0m0.019s 0m0.007s
0m0.024s 0m0.009s
v  x1 -x2 -x3  x4  x5 -x6 -x7  x8 -x9  x10 -x11  x12 -x13  x14 -x15  x16 -x17  x18 -x19  x20 -x21  x22 -x23  x24 -x25  x26 -x27  x28 -x29  x30 -x31  x32 -x33  x34 -x35  x36 -x37  x38 -x39  x40 -x41  x42 -x43  x44 -x45  x46 -x47  x48 -x49  x50 -x51  x52 -x53  x54 -x55  x56 -x57  x58 -x59  x60 -x61  x62  x63 -x64 -x65  x66 -x67  x68  x69 -x70  x71 -x72 -x73  x74  x75 -x76  x77 -x78 -x79  x80  x81 -x82  x83 -x84  x85 -x86  x87 -x88  x89 -x90 -x91  x92  x93 -x94  x95 -x96  x97 -x98  x99 -x100  x101 -x102 -x103  x104  x105 -x106  x107 -x108  x109 -x110  x111 -x112  x113 -x114 -x115  x116  x117 -x118 -x119  x120  x121 -x122  x123 -x124  x125 -x126 -x127  x128 
s OPTIMUM FOUND
#### 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): 0.85 0.97 0.91 2/54 18350
Raw data (stat): 18350 (runsolver) R 18349 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 799005775 884736 94 4294967295 134512640 135332820 3221224464 3221219628 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+0.57748 s]
Raw data (loadavg): 0.85 0.97 0.91 1/53 18363
Raw data (stat): 18350 (runsolver) R 18349 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 799005775 884736 94 4294967295 134512640 135332820 3221224464 3221219628 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 0

Child status: 30
Real time (s): 0.577251
CPU time (s): 0.19297
CPU user time (s): 0.110983
CPU system time (s): 0.081987
CPU usage (%): 33.4291
Max. virtual memory (Kb): 864
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	64
#### END VERIFIER DATA ####