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-jnh207.opb
MD5SUM	f7c7ba2c6275b81ba79004cad9fac543
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	95
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	1
Number of bits of the biggest number in a constraint	1
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	0.086986
Number of variables	200
Total number of constraints	900
Number of constraints which are clauses	900
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	11

Trace number 34791

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc7 THE 2005-05-28 10:53:27 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24109 boxname=wulflinc7 idbench=183 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  f7c7ba2c6275b81ba79004cad9fac543  /oldhome/oroussel/tmp/wulflinc7/normalized-jnh207.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc7/normalized-jnh207.opb
IDLAUNCH: 24109
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.050
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		: 451.050
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:        712564 kB
Buffers:         36436 kB
Cached:         264636 kB
SwapCached:        644 kB
Active:          23372 kB
Inactive:       279692 kB
HighTotal:      131008 kB
HighFree:        27020 kB
LowTotal:       903652 kB
LowFree:        685544 kB
SwapTotal:     2097136 kB
SwapFree:      2095560 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5108 kB
Slab:            13220 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 10:53:30 (client local time) WITH STATUS 30 IN 2.94755 SECONDS
stats: 24109 0 2.94755 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c [startup+1.97615 s]  setting bit 7 to 0
c got solution with objective value: 100
c [startup+2.16716 s]  setting bit 6 to 1
c got solution with objective value: 100
c [startup+2.28258 s]  setting bit 5 to 1
c [startup+2.39847 s]  setting bit 4 to 0
c got solution with objective value: 96
c [startup+2.51642 s]  setting bit 3 to 1
c [startup+2.63479 s]  setting bit 2 to 0
c [startup+2.75331 s]  setting bit 1 to 0
c got solution with objective value: 95
c [startup+2.86923 s]  setting bit 0 to 1
s OPTIMUM FOUND
v -x1 -x10 -x100 -x101 x102 -x103 -x104 x105 -x106 -x107 x108 -x109 x11 x110 x111 -x112 -x113 x114 -x115 x116 x117 -x118 x119 -x12 -x120 -x121 x122 -x123 x124 x125 -x126 -x127 x128 x129 -x13 -x130 x131 -x132 x133 -x134 -x135 x136 x137 -x138 x139 x14 -x140 x141 -x142 -x143 x144 x145 -x146 x147 -x148 -x149 x15 x150 -x151 -x152 -x153 -x154 -x155 x156 x157 -x158 -x159 -x16 x160 x161 -x162 x163 -x164 x165 -x166 x167 -x168 x169 -x17 -x170 -x171 x172 x173 -x174 -x175 x176 x177 -x178 -x179 -x18 x180 x181 -x182 x183 -x184 x185 -x186 -x187 x188 -x189 x19 -x190 x191 -x192 x193 -x194 -x195 x196 x197 -x198 -x199 x2 -x20 x200 -x21 x22 -x23 x24 -x25 x26 x27 -x28 -x29 -x3 x30 x31 -x32 -x33 x34 -x35 x36 -x37 x38 x39 x4 -x40 -x41 x42 x43 -x44 x45 -x46 x47 -x48 x49 -x5 -x50 -x51 x52 -x53 x54 x55 -x56 x57 -x58 -x59 x6 x60 -x61 x62 x63 -x64 -x65 x66 x67 -x68 x69 -x7 -x70 -x71 x72 -x73 x74 -x75 x76 x77 -x78 x79 x8 -x80 -x81 x82 x83 -x84 x85 -x86 x87 -x88 x89 x9 -x90 x91 -x92 x93 -x94 -x95 x96 x97 -x98 x99 
#### 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): 0.77 0.93 0.89 2/54 7378
Raw data (stat): 7378 (runsolver) R 7377 24300 24299 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806021051 884736 94 4294967295 134512640 135332820 3221224480 3221219660 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+2.95342 s]
Raw data (loadavg): 0.77 0.93 0.89 1/53 7378
Raw data (stat): 7378 (runsolver) R 7377 24300 24299 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806021051 884736 94 4294967295 134512640 135332820 3221224480 3221219660 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): 2.95281
CPU time (s): 2.94755
CPU user time (s): 2.87456
CPU system time (s): 0.072988
CPU usage (%): 99.822
Max. virtual memory (Kb): 864
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	95
#### END VERIFIER DATA ####