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-aim-100-3_4-yes1-4.opb
MD5SUM	c5a7e1a921f6a57e2675de6908b9939e
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	100
Optimality of the best value was proved	NO
Number of terms in the objective function	200
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	200
Number of bits of the sum of numbers in the objective function	8
Biggest number in a constraint	2
Number of bits of the biggest number in a constraint	2
Biggest sum of numbers in a constraint	200
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	0.037993
Number of variables	200
Total number of constraints	440
Number of constraints which are clauses	439
Number of constraints which are cardinality constraints (but not clauses)	0
Number of constraints which are nor clauses,nor cardinality constraints	1
Minimum length of a constraint	2
Maximum length of a constraint	3

Trace number 33520

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc17 THE 2005-05-27 14:42:59 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=773 boxname=wulflinc17 idbench=86 idsolver=8 numberseed=0
MD5SUM SOLVER: 4b637b3b6117f2add1a6288e91336322  /oldhome/oroussel/solvers/vallstSAT2005PB.sh
MD5SUM BENCH:  c5a7e1a921f6a57e2675de6908b9939e  /oldhome/oroussel/tmp/wulflinc17/normalized-aim-100-3_4-yes1-4.opb
REAL COMMAND:  vallstSAT2005PB.sh /oldhome/oroussel/tmp/wulflinc17/normalized-aim-100-3_4-yes1-4.opb 0
IDLAUNCH: 773
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.072
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		: 451.072
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:        667656 kB
Buffers:         26836 kB
Cached:         319516 kB
SwapCached:        584 kB
Active:          60704 kB
Inactive:       287808 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        667404 kB
SwapTotal:     2097892 kB
SwapFree:      2096524 kB
Dirty:              60 kB
Writeback:           0 kB
Mapped:           5300 kB
Slab:            12780 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-27 14:43:00 (client local time) WITH STATUS 30 IN 0.465929 SECONDS
stats: 773 0 0.465929 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
1:
seed: 0
Nr of vars set: 0  (#equs: 0)
Nr of vars set: 200  (#equs: 1)
#decisions: 0;  #end-nodes: 0;
#proof improvement attempts: 0;  #restarts: 0
Current batch, end-nodes: 0 / 80 (80)
#axs: 442, #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:  99 (100:>=*);
Model found with constant:
  (pushed:) 4294967295 (200:>=*)

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: 200  (#equs: 1)
Time taken in milliseconds: 270
times:
0m0.019s 0m0.009s
0m0.224s 0m0.065s
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  x129 -x130  x131 -x132 -x133  x134  x135 -x136 -x137  x138  x139 -x140  x141 -x142  x143 -x144 -x145  x146  x147 -x148  x149 -x150  x151 -x152  x153 -x154 -x155  x156  x157 -x158 -x159  x160 -x161  x162  x163 -x164  x165 -x166 -x167  x168 -x169  x170 -x171  x172  x173 -x174 -x175  x176  x177 -x178  x179 -x180  x181 -x182 -x183  x184 -x185  x186  x187 -x188 -x189  x190 -x191  x192 -x193  x194  x195 -x196  x197 -x198  x199 -x200 
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): 0.49 0.80 0.66 2/54 11523
Raw data (stat): 11523 (runsolver) R 11522 7475 7474 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 856982607 884736 94 4294967295 134512640 135332820 3221224448 3221219612 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+0.829606 s]
Raw data (loadavg): 0.49 0.80 0.66 1/53 11536
Raw data (stat): 11523 (runsolver) R 11522 7475 7474 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 856982607 884736 94 4294967295 134512640 135332820 3221224448 3221219612 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 0

Child status: 30
Real time (s): 0.829365
CPU time (s): 0.465929
CPU user time (s): 0.32795
CPU system time (s): 0.137979
CPU usage (%): 56.179
Max. virtual memory (Kb): 864
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	100
#### END VERIFIER DATA ####