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-jnh204.opb
MD5SUM	a868f0757b1a6fa4984216c84ba8594b
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	93
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	0.142977
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 5068

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc12 THE 2005-04-13 22:12:34 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=3565 boxname=wulflinc12 idbench=181 idsolver=10 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  a868f0757b1a6fa4984216c84ba8594b  /oldhome/oroussel/tmp/wulflinc12/normalized-jnh204.opb
REAL COMMAND:  minisat+ -ca /oldhome/oroussel/tmp/wulflinc12/normalized-jnh204.opb /oldhome/oroussel/tmp/wulflinc12/normalized-jnh204.opb
IDLAUNCH: 3565
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.091
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		: 451.091
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:        919740 kB
Buffers:         34732 kB
Cached:          61132 kB
SwapCached:         16 kB
Active:          59344 kB
Inactive:        39400 kB
HighTotal:      131008 kB
HighFree:        65996 kB
LowTotal:       903652 kB
LowFree:        853744 kB
SwapTotal:     2097136 kB
SwapFree:      2097120 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6920 kB
Slab:            10648 kB
Committed_AS:    63484 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-13 22:12:37 (client local time) WITH STATUS 30 IN 2.12368 SECONDS
stats: 3565 0 2.12368 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Parsing PB file...
c Converting 900 PB-constraints to clauses...
c   -- Unit propagations: (none)
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         0 |     900     4114 |     300       0        0     nan |  0.000 % |
c |       101 |     900     4114 |     330     101      904     9.0 |  0.003 % |
c ==============================================================================
c [1mFound solution: 97[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 394   maxlim: 103   bits: 8/7
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       144 |    3605    13755 |    1201     144     1305     9.1 |  0.003 % |
c |       244 |    3605    13755 |    1321     244     2760    11.3 |  0.505 % |
c |       395 |    3605    13755 |    1453     395     3880     9.8 |  0.505 % |
c ==============================================================================
c [1mFound solution: 95[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 0   maxlim: 105   bits: 8/7
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       396 |    3614    13791 |    1204     396     3885     9.8 |  0.505 % |
c |       496 |    3614    13791 |    1324     496     7398    14.9 |  0.670 % |
c |       646 |    3614    13791 |    1456     646     8530    13.2 |  0.670 % |
c ==============================================================================
c [1mFound solution: 94[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 0   maxlim: 106   bits: 8/7
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       674 |    3619    13812 |    1206     674     9449    14.0 |  0.670 % |
c ==============================================================================
c [1mFound solution: 93[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 388   maxlim: 106   bits: 8/7
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       736 |    6264    23205 |    2088     732    10170    13.9 |  0.670 % |
c |       836 |    6264    23205 |    2296     832    12033    14.5 |  1.210 % |
c |       986 |    6264    23205 |    2526     982    15384    15.7 |  1.210 % |
c |      1215 |    6219    23005 |    2779    1200    21702    18.1 |  1.413 % |
c |      1554 |    6219    23005 |    3057    1539    31867    20.7 |  1.411 % |
c |      2061 |    6178    22832 |    3362    2023    40234    19.9 |  1.613 % |
c |      2820 |    6178    22832 |    3699    2782    53798    19.3 |  1.613 % |
c |      3959 |    6178    22832 |    4068    1982    53615    27.1 |  1.616 % |
c ==============================================================================
c [1mOptimal solution: 93[0m
s OPTIMUM FOUND
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
c _______________________________________________________________________________
c 
c restarts              : 17
c conflicts             : 5525           (2620 /sec)
c decisions             : 9347           (4433 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 2.10868 s
c _______________________________________________________________________________
#### 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
Raw data (loadavg): 0.79 0.94 0.90 2/54 28582
Raw data (stat): 28582 (runsolver) R 28581 25285 25284 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 421232601 1052672 99 4294967295 134512640 135381576 3221224464 3221219708 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+2.13051 s]
Raw data (loadavg): 0.79 0.94 0.90 1/53 28582
Raw data (stat): 28582 (runsolver) R 28581 25285 25284 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 421232601 1052672 99 4294967295 134512640 135381576 3221224464 3221219708 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 0

Child status: 30
Real time (s): 2.13019
CPU time (s): 2.12368
CPU user time (s): 2.10968
CPU system time (s): 0.013997
CPU usage (%): 99.6942
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	93
#### END VERIFIER DATA ####