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-ii8a1.opb
MD5SUM	b3cc2686c19f6e4ddbbeb52b8905fbf9
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	54
Optimality of the best value was proved	NO
Number of terms in the objective function	132
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	132
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	132
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	0.763883
Number of variables	132
Total number of constraints	252
Number of constraints which are clauses	252
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	8

Trace number 6178

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc32 THE 2005-04-14 04:00:16 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=4675 boxname=wulflinc32 idbench=163 idsolver=13 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  b3cc2686c19f6e4ddbbeb52b8905fbf9  /oldhome/oroussel/tmp/wulflinc32/normalized-ii8a1.opb
REAL COMMAND:  minisat+ -w /oldhome/oroussel/tmp/wulflinc32/normalized-ii8a1.opb /oldhome/oroussel/tmp/wulflinc32/normalized-ii8a1.opb
IDLAUNCH: 4675
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.085
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		: 451.085
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:      1034724 kB
MemFree:        701556 kB
Buffers:         35348 kB
Cached:         186140 kB
SwapCached:       1212 kB
Active:         147444 kB
Inactive:       154364 kB
HighTotal:      131072 kB
HighFree:          256 kB
LowTotal:       903652 kB
LowFree:        701300 kB
SwapTotal:     2097892 kB
SwapFree:      2096680 kB
Dirty:            2340 kB
Writeback:           0 kB
Mapped:          81768 kB
Slab:            25428 kB
Committed_AS:   174000 kB
PageTables:        432 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-04-14 04:00:18 (client local time) WITH STATUS 30 IN 2.20966 SECONDS
stats: 4675 0 2.20966 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Parsing PB file...
c Converting 252 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 |     252      582 |      84       0        0     nan |  0.000 % |
c ==============================================================================
c [1mFound solution: 61[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost: 3660     Base:
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         5 |    8382    19635 |    2794       5       46     9.2 |  0.000 % |
c ==============================================================================
c [1mFound solution: 60[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 |        15 |    8167    19141 |    2722      14      238    17.0 |  0.000 % |
c |       115 |    7400    17390 |    2994      89      665     7.5 | 10.221 % |
c |       265 |    5953    14082 |    3293     115      729     6.3 | 26.211 % |
c ==============================================================================
c [1mFound solution: 59[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 |       275 |    5489    13016 |    1829      79      537     6.8 | 26.211 % |
c |       377 |    4893    11640 |    2011     167     2620    15.7 | 37.766 % |
c |       529 |    4806    11441 |    2213     316     6361    20.1 | 38.688 % |
c ==============================================================================
c [1mFound solution: 58[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 |       688 |    4490    10705 |    1496     460    10554    22.9 | 38.688 % |
c ==============================================================================
c [1mFound solution: 57[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 |       696 |    4539    10828 |    1513     468    10819    23.1 | 38.688 % |
c |       796 |    4539    10828 |    1664     568    14060    24.8 | 42.083 % |
c |       949 |    4539    10828 |    1830     721    17969    24.9 | 42.083 % |
c ==============================================================================
c [1mFound solution: 56[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 |      1094 |    4464    10647 |    1488     848    20298    23.9 | 42.083 % |
c ==============================================================================
c [1mFound solution: 55[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 |      1104 |    4503    10746 |    1501     858    20509    23.9 | 42.083 % |
c |      1205 |    4503    10746 |    1651     959    23821    24.8 | 42.787 % |
c |      1356 |    4393    10490 |    1816    1107    27945    25.2 | 44.118 % |
c |      1581 |    4149     9926 |    1997    1324    33474    25.3 | 46.919 % |
c |      1920 |    3890     9327 |    2197    1650    42188    25.6 | 49.895 % |
c ==============================================================================
c [1mFound solution: 54[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 |      1974 |    3869     9267 |    1289    1691    42726    25.3 | 49.895 % |
c |      2076 |    3869     9267 |    1417    1793    45035    25.1 | 50.142 % |
c |      2234 |    3869     9267 |    1559    1951    48697    25.0 | 50.140 % |
c |      2460 |    3737     8958 |    1715    2174    53463    24.6 | 51.680 % |
c |      2797 |    3737     8958 |    1887    2511    60489    24.1 | 51.680 % |
c |      3303 |    3652     8760 |    2075    2551    58557    23.0 | 52.555 % |
c ==============================================================================
c [1mOptimal solution: 54[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
c _______________________________________________________________________________
c 
c restarts              : 24
c conflicts             : 3558           (1625 /sec)
c decisions             : 7756           (3542 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 2.18967 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): 0.96 0.96 0.91 2/53 15194
Raw data (stat): 15194 (runsolver) R 15193 7987 7986 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 481538845 1052672 99 4294967295 134512640 135381576 3221224464 3221219708 135158418 0 0 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+2.221 s]
Raw data (loadavg): 0.96 0.96 0.91 1/52 15194
Raw data (stat): 15194 (runsolver) R 15193 7987 7986 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 481538845 1052672 99 4294967295 134512640 135381576 3221224464 3221219708 135158418 0 0 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): 2.22012
CPU time (s): 2.20966
CPU user time (s): 2.19067
CPU system time (s): 0.018997
CPU usage (%): 99.529
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	54
#### END VERIFIER DATA ####