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 6198

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc12 THE 2005-04-14 04:07:52 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=4693 boxname=wulflinc12 idbench=181 idsolver=13 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  a868f0757b1a6fa4984216c84ba8594b  /oldhome/oroussel/tmp/wulflinc12/normalized-jnh204.opb
REAL COMMAND:  minisat+ -w /oldhome/oroussel/tmp/wulflinc12/normalized-jnh204.opb /oldhome/oroussel/tmp/wulflinc12/normalized-jnh204.opb
IDLAUNCH: 4693
/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:        901020 kB
Buffers:         35984 kB
Cached:          78308 kB
SwapCached:         16 kB
Active:          62292 kB
Inactive:        54840 kB
HighTotal:      131008 kB
HighFree:        48804 kB
LowTotal:       903652 kB
LowFree:        852216 kB
SwapTotal:     2097136 kB
SwapFree:      2097120 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6920 kB
Slab:            10924 kB
Committed_AS:    63484 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-14 04:07:52 (client local time) WITH STATUS 30 IN 0.359945 SECONDS
stats: 4693 0 0.359945 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]---> Sorter-cost: 5812     Base:
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       144 |   14338    35585 |    4779     144     1305     9.1 |  0.003 % |
c ==============================================================================
c [1mFound solution: 96[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:    0     Base:
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       150 |   14309    35521 |    4769     150     1486     9.9 |  0.003 % |
c ==============================================================================
c [1mFound solution: 95[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:    0     Base:
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       157 |   14364    35664 |    4788     157     1826    11.6 |  0.003 % |
c ==============================================================================
c [1mFound solution: 94[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:    0     Base:
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       158 |   14325    35571 |    4775     158     1829    11.6 |  0.003 % |
c ==============================================================================
c [1mFound solution: 93[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:    0     Base:
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       159 |   14400    35765 |    4800     159     1888    11.9 |  0.003 % |
c |       260 |   14400    35765 |    5280     259     2929    11.3 |  2.807 % |
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              : 8
c conflicts             : 300            (885 /sec)
c decisions             : 456            (1345 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 0.338948 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): 0.91 0.97 0.91 2/54 32097
Raw data (stat): 32097 (runsolver) R 32096 25285 25284 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 423364581 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+0.37033 s]
Raw data (loadavg): 0.91 0.97 0.91 1/53 32097
Raw data (stat): 32097 (runsolver) R 32096 25285 25284 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 423364581 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): 0.370038
CPU time (s): 0.359945
CPU user time (s): 0.340948
CPU system time (s): 0.018997
CPU usage (%): 97.2724
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	93
#### END VERIFIER DATA ####