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:
  1. 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.
  2. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser !
  3. 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.
  4. 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

Namesubmitted/manquinho/primes-dimacs-cnf/normalized-ii8a1.opb
MD5SUMb3cc2686c19f6e4ddbbeb52b8905fbf9
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 54
Optimality of the best value was proved YES
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 numbers8
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark0.809876
Number of variables132
Total number of constraints252
Number of constraints which are clauses252
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint2
Maximum length of a constraint8

Trace number 1451

Launcher Data

LAUNCH ON wulflinc28 THE 2005-09-18 15:23:26 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=2499 boxname=wulflinc28 idbench=155 idsolver=3 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  b3cc2686c19f6e4ddbbeb52b8905fbf9  /oldhome/oroussel/tmp/wulflinc28/normalized-ii8a1.opb
REAL COMMAND:  minisat+_script /oldhome/oroussel/tmp/wulflinc28/normalized-ii8a1.opb
IDLAUNCH: 2499
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.077
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		: 451.077
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:        932784 kB
Buffers:         33348 kB
Cached:          40620 kB
SwapCached:        696 kB
Active:          57444 kB
Inactive:        19068 kB
HighTotal:      131008 kB
HighFree:        86828 kB
LowTotal:       903652 kB
LowFree:        845956 kB
SwapTotal:     2097640 kB
SwapFree:      2096372 kB
Dirty:              44 kB
Writeback:           0 kB
Mapped:           5812 kB
Slab:            19752 kB
Committed_AS:    64164 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-18 15:23:29 (client local time) WITH STATUS 30 IN 3.07853 SECONDS
stats: 2499 0 3.07853 30

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 Found solution: 61
c ---[   0]---> Sorter-cost: 3660     Base:
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         5 |    4320    10117 |    1440       5       46     9.2 |  0.000 % |
c ==============================================================================
c Found solution: 58
c ---[   0]---> Sorter-cost:    0     Base:
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        10 |    4320    10125 |    1440       9      116    12.9 |  0.000 % |
c |       110 |    4250     9979 |    1584     105     2666    25.4 |  1.881 % |
c ==============================================================================
c Found solution: 55
c ---[   0]---> Sorter-cost:    0     Base:
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       141 |    4293    10097 |    1431     136     3594    26.4 |  1.881 % |
c |       244 |    4188     9870 |    1574     234     6203    26.5 |  4.006 % |
c ==============================================================================
c Found solution: 54
c ---[   0]---> Sorter-cost:    0     Base:
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       255 |    4180     9848 |    1393     245     6693    27.3 |  4.006 % |
c |       355 |    4154     9792 |    1532     344     9865    28.7 |  4.881 % |
c |       508 |    3999     9453 |    1685     491    13735    28.0 |  8.041 % |
c |       733 |    3866     9160 |    1854     711    20810    29.3 | 10.815 % |
c |      1071 |    3835     9093 |    2039    1048    32135    30.7 | 11.447 % |
c |      1578 |    3798     9014 |    2243    1554    47449    30.5 | 12.184 % |
c |      2339 |    3798     9014 |    2467    2315    67847    29.3 | 12.184 % |
c |      3478 |    3726     8856 |    2714    1962    41720    21.3 | 13.659 % |
c ==============================================================================
c Optimal solution: 54
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              : 14
c conflicts             : 5004           (1655 /sec)
c decisions             : 9252           (3060 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 3.02354 s
c _______________________________________________________________________________

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/32082/stat): 32082 (minisat+_script) R 32081 32082 20115 0 -1 0 19 0 0 0 0 0 0 0 23 0 1 0 1842316788 712704 3 4294967295 134512640 135087896 3221224512 3221224512 1073744960 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/32082/statm): 174 3 169 147 0 27 0
[pid=32082] vsize: 696
open syscall for file /etc/ld.so.preload
open syscall for file tls/i686/mmx/libtermcap.so.2
open syscall for file tls/i686/libtermcap.so.2
open syscall for file tls/mmx/libtermcap.so.2
open syscall for file tls/libtermcap.so.2
open syscall for file i686/mmx/libtermcap.so.2
open syscall for file i686/libtermcap.so.2
open syscall for file mmx/libtermcap.so.2
open syscall for file libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/tls/i686/mmx/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/tls/i686/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/tls/mmx/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/tls/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/i686/mmx/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/i686/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/mmx/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/libtermcap.so.2
open syscall for file /etc/ld.so.cache
open syscall for file /lib/libtermcap.so.2
open syscall for file tls/i686/mmx/libdl.so.2
open syscall for file tls/i686/libdl.so.2
open syscall for file tls/mmx/libdl.so.2
open syscall for file tls/libdl.so.2
open syscall for file i686/mmx/libdl.so.2
open syscall for file i686/libdl.so.2
open syscall for file mmx/libdl.so.2
open syscall for file libdl.so.2
open syscall for file /oldhome/oroussel/lib/libdl.so.2
open syscall for file /lib/libdl.so.2
open syscall for file tls/i686/mmx/libc.so.6
open syscall for file tls/i686/libc.so.6
open syscall for file tls/mmx/libc.so.6
open syscall for file tls/libc.so.6
open syscall for file i686/mmx/libc.so.6
open syscall for file i686/libc.so.6
open syscall for file mmx/libc.so.6
open syscall for file libc.so.6
open syscall for file /oldhome/oroussel/lib/libc.so.6
open syscall for file /lib/tls/libc.so.6
open syscall for file /dev/tty
open syscall for file /etc/mtab
open syscall for file /proc/meminfo
open syscall for file /oldhome/oroussel/solvers/minisat+_script
New process pid=32083
New process pid=32084
New process pid=32085
execve syscall for /bin/sed executable
One traced child (pid=32084) exited with status: 0
open syscall for file /etc/ld.so.preload
open syscall for file tls/i686/mmx/libc.so.6
open syscall for file tls/i686/libc.so.6
open syscall for file tls/mmx/libc.so.6
open syscall for file tls/libc.so.6
open syscall for file i686/mmx/libc.so.6
open syscall for file i686/libc.so.6
open syscall for file mmx/libc.so.6
open syscall for file libc.so.6
open syscall for file /oldhome/oroussel/lib/tls/i686/mmx/libc.so.6
open syscall for file /oldhome/oroussel/lib/tls/i686/libc.so.6
open syscall for file /oldhome/oroussel/lib/tls/mmx/libc.so.6
open syscall for file /oldhome/oroussel/lib/tls/libc.so.6
open syscall for file /oldhome/oroussel/lib/i686/mmx/libc.so.6
open syscall for file /oldhome/oroussel/lib/i686/libc.so.6
open syscall for file /oldhome/oroussel/lib/mmx/libc.so.6
open syscall for file /oldhome/oroussel/lib/libc.so.6
open syscall for file /etc/ld.so.cache
open syscall for file /lib/tls/libc.so.6
One traced child (pid=32085) exited with status: 0
One traced child (pid=32083) exited with status: 0
New process pid=32086
execve syscall for /oldhome/oroussel/solvers/minisat+_64-bit_static executable
open syscall for file /dev/null
open syscall for file /oldhome/oroussel/tmp/wulflinc28/normalized-ii8a1.opb
One traced child (pid=32086) exited with status: 30
One traced child (pid=32082) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 3.13196
CPU time (s): 3.07853
CPU user time (s): 3.03454
CPU system time (s): 0.043993
CPU usage (%): 98.2942
Max. virtual memory (cumulated for all children) (Kb): 0

Verifier Data

Verifier:	OK	54