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/aloul/FPGA_SAT05/normalized-fpga30_28_sat_pb.cnf.cr.opb
MD5SUM888577ab8fe81abf9fdd366d65e4c3b7
Bench Categoryno optimization function (SAT)
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved NO
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 31
Number of bits of the biggest sum of numbers5
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.789879
Number of variables1260
Total number of constraints926
Number of constraints which are clauses868
Number of constraints which are cardinality constraints (but not clauses)58
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint15
Maximum length of a constraint30

Trace number 794

Launcher Data

LAUNCH ON wulflinc20 THE 2005-09-18 12:32:59 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=2386 boxname=wulflinc20 idbench=42 idsolver=3 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  888577ab8fe81abf9fdd366d65e4c3b7  /oldhome/oroussel/tmp/wulflinc20/normalized-fpga30_28_sat_pb.cnf.cr.opb
REAL COMMAND:  minisat+_script /oldhome/oroussel/tmp/wulflinc20/normalized-fpga30_28_sat_pb.cnf.cr.opb
IDLAUNCH: 2386
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.215
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		: 451.215
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        938492 kB
Buffers:         34564 kB
Cached:          32740 kB
SwapCached:        832 kB
Active:          54936 kB
Inactive:        15096 kB
HighTotal:      131008 kB
HighFree:        94528 kB
LowTotal:       903652 kB
LowFree:        843964 kB
SwapTotal:     2097892 kB
SwapFree:      2096604 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5732 kB
Slab:            20544 kB
Committed_AS:    64168 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-18 12:33:44 (client local time) WITH STATUS 10 IN 44.5052 SECONDS
stats: 2386 7 44.5052 10

Solver Data

c Parsing PB file...
c Converting 926 PB-constraints to clauses...
c   -- Unit propagations: (none)
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
c ---[  57]---> BDD-cost:   53
c ---[  56]---> BDD-cost:   53
c ---[  55]---> BDD-cost:   53
c ---[  54]---> BDD-cost:   53
c ---[  53]---> BDD-cost:   53
c ---[  52]---> BDD-cost:   53
c ---[  51]---> BDD-cost:   53
c ---[  50]---> BDD-cost:   53
c ---[  49]---> BDD-cost:   53
c ---[  48]---> BDD-cost:   53
c ---[  47]---> BDD-cost:   53
c ---[  46]---> BDD-cost:   53
c ---[  45]---> BDD-cost:   53
c ---[  44]---> BDD-cost:   53
c ---[  43]---> BDD-cost:   53
c ---[  42]---> BDD-cost:   53
c ---[  41]---> BDD-cost:   53
c ---[  40]---> BDD-cost:   53
c ---[  39]---> BDD-cost:   53
c ---[  38]---> BDD-cost:   53
c ---[  37]---> BDD-cost:   53
c ---[  36]---> BDD-cost:   53
c ---[  35]---> BDD-cost:   53
c ---[  34]---> BDD-cost:   53
c ---[  33]---> BDD-cost:   53
c ---[  32]---> BDD-cost:   53
c ---[  31]---> BDD-cost:   53
c ---[  30]---> BDD-cost:   53
c ---[  29]---> BDD-cost:   53
c ---[  28]---> BDD-cost:   53
c ---[  27]---> BDD-cost:   27
c ---[  26]---> BDD-cost:   27
c ---[  25]---> BDD-cost:   27
c ---[  24]---> BDD-cost:   27
c ---[  23]---> BDD-cost:   27
c ---[  22]---> BDD-cost:   27
c ---[  21]---> BDD-cost:   27
c ---[  20]---> BDD-cost:   27
c ---[  19]---> BDD-cost:   27
c ---[  18]---> BDD-cost:   27
c ---[  17]---> BDD-cost:   27
c ---[  16]---> BDD-cost:   27
c ---[  15]---> BDD-cost:   27
c ---[  14]---> BDD-cost:   27
c ---[  13]---> BDD-cost:   27
c ---[  12]---> BDD-cost:   27
c ---[  11]---> BDD-cost:   27
c ---[  10]---> BDD-cost:   27
c ---[   9]---> BDD-cost:   27
c ---[   8]---> BDD-cost:   27
c ---[   7]---> BDD-cost:   27
c ---[   6]---> BDD-cost:   27
c ---[   5]---> BDD-cost:   27
c ---[   4]---> BDD-cost:   27
c ---[   3]---> BDD-cost:   27
c ---[   2]---> BDD-cost:   27
c ---[   1]---> BDD-cost:   27
c ---[   0]---> BDD-cost:   27
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         0 |    6646    28486 |    2215       0        0     nan |  0.000 % |
c |       100 |    6646    28486 |    2436     100    14572   145.7 |  1.608 % |
c |       252 |    6646    28486 |    2680     252    38153   151.4 |  1.608 % |
c |       480 |    6646    28486 |    2948     480    75017   156.3 |  1.609 % |
c |       817 |    6646    28486 |    3242     817    99605   121.9 |  1.608 % |
c |      1326 |    6646    28486 |    3567    1326   206697   155.9 |  1.608 % |
c |      2087 |    6646    28486 |    3924    2087   307309   147.2 |  1.608 % |
c |      3230 |    6646    28486 |    4316    3230   602452   186.5 |  1.609 % |
c |      4939 |    6646    28486 |    4748    4939   959684   194.3 |  1.608 % |
c |      7501 |    6646    28486 |    5222    5032   699879   139.1 |  1.608 % |
c |     11346 |    6646    28486 |    5745    5197  1056193   203.2 |  1.608 % |
c |     17113 |    6646    28486 |    6319    6919  1713493   247.7 |  1.608 % |
c |     25764 |    6646    28486 |    6951    7439   572948    77.0 |  1.609 % |
c |     38739 |    6646    28486 |    7646    7530  2014451   267.5 |  1.608 % |
c ==============================================================================
c SATISFIABLE: No goal function specified.
s SATISFIABLE
v
c _______________________________________________________________________________
c 
c restarts              : 14
c conflicts             : 38983          (880 /sec)
c decisions             : 60232          (1360 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 44.2773 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/6200/stat): 6200 (minisat+_script) R 6199 6200 2660 0 -1 0 19 0 0 0 0 0 0 0 22 0 1 0 1841283351 712704 3 4294967295 134512640 135087896 3221224496 3221224496 1073744960 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/6200/statm): 174 3 169 147 0 27 0
[pid=6200] 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=6201
New process pid=6202
New process pid=6203
execve syscall for /bin/sed executable
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
One traced child (pid=6202) exited with status: 0
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=6203) exited with status: 0
One traced child (pid=6201) exited with status: 0
New process pid=6204
execve syscall for /oldhome/oroussel/solvers/minisat+_64-bit_static executable
open syscall for file /dev/null
open syscall for file /oldhome/oroussel/tmp/wulflinc20/normalized-fpga30_28_sat_pb.cnf.cr.opb

[startup+10.0043 s]
Raw data (loadavg): 0.62 0.85 0.90 2/57 6204
Raw data (/proc/6200/stat): 6200 (minisat+_script) S 6199 6200 2660 0 -1 0 289 239 0 0 0 1 0 1 21 0 1 0 1841283351 2174976 226 4294967295 134512640 135087896 3221224496 3221223768 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (/proc/6200/statm): 531 226 485 147 0 384 0
[pid=6200] vsize: 2124
Raw data (/proc/6204/stat): 6204 (minisat+_64-bit) R 6200 6200 2660 0 -1 0 1851 0 0 0 974 10 0 0 25 0 1 0 1841283356 7852032 1838 4294967295 134512640 135094434 3221224432 3221223088 134557996 0 0 5 16386 0 0 0 17 1 0 0
Raw data (/proc/6204/statm): 1917 1838 145 145 0 1772 0
[pid=6204] vsize: 7668
Current children cumulated CPU time (s) 9.86
Current children cumulated vsize (Kb) 9792

[startup+20.005 s]
Raw data (loadavg): 0.68 0.86 0.90 2/57 6204
Raw data (/proc/6200/stat): 6200 (minisat+_script) S 6199 6200 2660 0 -1 0 289 239 0 0 0 1 0 1 21 0 1 0 1841283351 2174976 226 4294967295 134512640 135087896 3221224496 3221223768 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (/proc/6200/statm): 531 226 485 147 0 384 0
[pid=6200] vsize: 2124
Raw data (/proc/6204/stat): 6204 (minisat+_64-bit) R 6200 6200 2660 0 -1 0 2470 0 0 0 1965 13 0 0 25 0 1 0 1841283356 10387456 2457 4294967295 134512640 135094434 3221224432 3221223088 134558176 0 0 5 16386 0 0 0 17 0 0 0
Raw data (/proc/6204/statm): 2536 2457 145 145 0 2391 0
[pid=6204] vsize: 10144
Current children cumulated CPU time (s) 19.8
Current children cumulated vsize (Kb) 12268

[startup+30.0068 s]
Raw data (loadavg): 0.73 0.86 0.90 2/57 6204
Raw data (/proc/6200/stat): 6200 (minisat+_script) S 6199 6200 2660 0 -1 0 289 239 0 0 0 1 0 1 21 0 1 0 1841283351 2174976 226 4294967295 134512640 135087896 3221224496 3221223768 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (/proc/6200/statm): 531 226 485 147 0 384 0
[pid=6200] vsize: 2124
Raw data (/proc/6204/stat): 6204 (minisat+_64-bit) R 6200 6200 2660 0 -1 0 2480 0 0 0 2965 13 0 0 25 0 1 0 1841283356 10452992 2467 4294967295 134512640 135094434 3221224432 3221223088 134558208 0 0 5 16386 0 0 0 17 1 0 0
Raw data (/proc/6204/statm): 2552 2467 145 145 0 2407 0
[pid=6204] vsize: 10208
Current children cumulated CPU time (s) 29.8
Current children cumulated vsize (Kb) 12332

[startup+40.0075 s]
Raw data (loadavg): 0.77 0.87 0.90 2/57 6204
Raw data (/proc/6200/stat): 6200 (minisat+_script) S 6199 6200 2660 0 -1 0 289 239 0 0 0 1 0 1 21 0 1 0 1841283351 2174976 226 4294967295 134512640 135087896 3221224496 3221223768 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (/proc/6200/statm): 531 226 485 147 0 384 0
[pid=6200] vsize: 2124
Raw data (/proc/6204/stat): 6204 (minisat+_64-bit) R 6200 6200 2660 0 -1 0 3410 0 0 0 3951 18 0 0 25 0 1 0 1841283356 14270464 3397 4294967295 134512640 135094434 3221224432 3221223088 134558016 0 0 5 16386 0 0 0 17 0 0 0
Raw data (/proc/6204/statm): 3484 3397 145 145 0 3339 0
[pid=6204] vsize: 13936
Current children cumulated CPU time (s) 39.71
Current children cumulated vsize (Kb) 16060
One traced child (pid=6204) exited with status: 10
One traced child (pid=6200) exited with status: 10
All traced children have exited ! Game is over.

Child status: 10
Real time (s): 44.7832
CPU time (s): 44.5052
CPU user time (s): 44.2853
CPU system time (s): 0.219966
CPU usage (%): 99.3793
Max. virtual memory (cumulated for all children) (Kb): 16060

Verifier Data

ERROR: no interpretation found !