Trace number 3274655

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 into four (or five) parts:
  1. 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 ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. 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.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. 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 X seconds (see the parameters in the trace). 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 X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    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.
  5. 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 provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
SAT07 reference solver: minisat SAT 2007UNSAT 1.17482 1.17526

General information on the benchmark

NameSAT03/handmade/bevan/cnf/
marg3x3add8.shuffled-as.sat03-1449.cnf
MD5SUMb91fa4fe3fb0fdf9c902d36266504764
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.000999
Satisfiable
(Un)Satisfiability was proved
Number of variables41
Number of clauses224
Sum of the clauses size1056
Maximum clause length5
Minimum clause length4
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 464
Number of clauses of size 5160
Number of clauses of size over 50

Solver Data 

0.00/0.00	c This is MiniSat 2.0 (Feb 1 2007, SAT-Competition version)
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:  41                                                   |
0.00/0.00	c |  Number of clauses:    224                                                  |
0.00/0.00	c |  Parsing time:         0.00         s                                       |
0.00/0.00	c ============================[ Search Statistics ]==============================
0.00/0.00	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.00	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.00	c ===============================================================================
0.00/0.00	c |         0 |      41      224     1056 |       74        0    nan |  0.000 % |
0.00/0.00	c |       101 |      41      224     1056 |       82       57     14 |  0.061 % |
0.00/0.00	c |       252 |      41      224     1056 |       90       66     12 |  0.061 % |
0.00/0.01	c |       477 |      41      224     1056 |       99       70     12 |  0.061 % |
0.00/0.01	c |       815 |      41      224     1056 |      109       69     12 |  0.061 % |
0.00/0.01	c |      1322 |      41      224     1056 |      120      127     13 |  0.061 % |
0.00/0.01	c |      2082 |      41      224     1056 |      132       97     14 |  0.061 % |
0.00/0.01	c |      3223 |      41      224     1056 |      145       97     11 |  0.061 % |
0.00/0.02	c |      4932 |      41      224     1056 |      160      120     12 |  0.061 % |
0.00/0.03	c |      7494 |      41      224     1056 |      176      108     12 |  0.061 % |
0.00/0.04	c |     11339 |      41      224     1056 |      193      114     10 |  0.061 % |
0.00/0.07	c |     17105 |      41      224     1056 |      213      131      9 |  0.061 % |
0.10/0.10	c |     25754 |      41      224     1056 |      234      134     10 |  0.061 % |
0.10/0.15	c |     38730 |      41      224     1056 |      257      148      9 |  0.062 % |
0.20/0.22	c |     58191 |      41      224     1056 |      283      168      9 |  0.061 % |
0.30/0.34	c |     87384 |      41      224     1056 |      311      212      9 |  0.065 % |
0.50/0.53	c |    131174 |      41      224     1056 |      343      279      9 |  0.066 % |
0.80/0.81	c |    196858 |      40      212     1000 |      377      282     10 |  2.500 % |
1.10/1.17	c ===============================================================================
1.10/1.17	c restarts              : 18
1.10/1.17	c conflicts             : 279948         (238290 /sec)
1.10/1.17	c decisions             : 422369         (1.83 % random) (359518 /sec)
1.10/1.17	c propagations          : 1801885        (1533753 /sec)
1.10/1.17	c conflict literals     : 2811610        (14.74 % deleted)
1.10/1.17	c Memory used           : 1.69 MB
1.10/1.17	c CPU time              : 1.17482 s
1.10/1.17	c 
1.10/1.17	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3274655-1303608667/watcher-3274655-1303608667 -o /tmp/evaluation-result-3274655-1303608667/solver-3274655-1303608667 -C 2400 -W 1300 -M 7680 --output-limit 1,15 HOME/minisat_noassertions HOME/instance-3274655-1303608667.cnf 

running on 2 cores: 1,3

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 7864320 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 7915520 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.75 1.96 2.37 4/178 9363
/proc/meminfo: memFree=20488284/32951124 swapFree=67110396/67111528
[pid=9363] ppid=9361 vsize=1728 CPUtime=0.01 cores=1,3
/proc/9363/stat : 9363 (minisat_noasser) R 9361 9363 8058 0 -1 4202496 132 0 0 0 1 0 0 0 20 0 1 0 551097388 1769472 89 33554432000 134512640 135048876 4290884656 18446744073709551615 134548712 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/9363/statm: 432 89 66 131 0 299 0

[startup+0.0746091 s]
/proc/loadavg: 1.75 1.96 2.37 4/178 9363
/proc/meminfo: memFree=20488284/32951124 swapFree=67110396/67111528
[pid=9363] ppid=9361 vsize=1728 CPUtime=0.07 cores=1,3
/proc/9363/stat : 9363 (minisat_noasser) R 9361 9363 8058 0 -1 4202496 134 0 0 0 7 0 0 0 20 0 1 0 551097388 1769472 91 33554432000 134512640 135048876 4290884656 18446744073709551615 134547004 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/9363/statm: 432 91 66 131 0 299 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1728

[startup+0.100603 s]
/proc/loadavg: 1.75 1.96 2.37 4/178 9363
/proc/meminfo: memFree=20488284/32951124 swapFree=67110396/67111528
[pid=9363] ppid=9361 vsize=1728 CPUtime=0.1 cores=1,3
/proc/9363/stat : 9363 (minisat_noasser) R 9361 9363 8058 0 -1 4202496 134 0 0 0 10 0 0 0 20 0 1 0 551097388 1769472 91 33554432000 134512640 135048876 4290884656 18446744073709551615 134547970 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/9363/statm: 432 91 66 131 0 299 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1728

[startup+0.300567 s]
/proc/loadavg: 1.75 1.96 2.37 4/178 9363
/proc/meminfo: memFree=20488284/32951124 swapFree=67110396/67111528
[pid=9363] ppid=9361 vsize=1728 CPUtime=0.3 cores=1,3
/proc/9363/stat : 9363 (minisat_noasser) R 9361 9363 8058 0 -1 4202496 138 0 0 0 30 0 0 0 21 0 1 0 551097388 1769472 95 33554432000 134512640 135048876 4290884656 18446744073709551615 134548935 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/9363/statm: 432 95 66 131 0 299 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1728

[startup+0.700511 s]
/proc/loadavg: 1.75 1.96 2.37 4/178 9363
/proc/meminfo: memFree=20488284/32951124 swapFree=67110396/67111528
[pid=9363] ppid=9361 vsize=1728 CPUtime=0.7 cores=1,3
/proc/9363/stat : 9363 (minisat_noasser) R 9361 9363 8058 0 -1 4202496 145 0 0 0 70 0 0 0 22 0 1 0 551097388 1769472 102 33554432000 134512640 135048876 4290884656 18446744073709551615 134546847 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/9363/statm: 432 102 66 131 0 299 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1728

Solver just ended. Dumping a history of the last processes samples

[startup+1.10644 s]
/proc/loadavg: 1.75 1.96 2.37 6/190 9385
/proc/meminfo: memFree=20477400/32951124 swapFree=67110396/67111528
[pid=9363] ppid=9361 vsize=1728 CPUtime=1.1 cores=1,3
/proc/9363/stat : 9363 (minisat_noasser) R 9361 9363 8058 0 -1 4202496 145 0 0 0 110 0 0 0 24 0 1 0 551097388 1769472 102 33554432000 134512640 135048876 4290884656 18446744073709551615 134547023 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/9363/statm: 432 102 66 131 0 299 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 1728

Child status: 20
Real time (s): 1.17526
CPU time (s): 1.17482
CPU user time (s): 1.17482
CPU system time (s): 0
CPU usage (%): 99.9627
Max. virtual memory (cumulated for all children) (KiB): 1728

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.17482
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 151
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 3
involuntary context switches= 3

runsolver used 0.002999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node118 at 2011-04-24 03:31:07
IDJOB=3274655
IDBENCH=84072
IDSOLVER=1676
FILE ID=node118/3274655-1303608667
RUNJOBID= node118-1303608667-9344
PBS_JOBID= 13150579
Free space on /tmp= 71744 MiB

SOLVER NAME= SAT07 reference solver: minisat SAT 2007
BENCH NAME= SAT03/handmade/bevan/cnf/marg3x3add8.shuffled-as.sat03-1449.cnf
COMMAND LINE= HOME/minisat_noassertions BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3274655-1303608667/watcher-3274655-1303608667 -o /tmp/evaluation-result-3274655-1303608667/solver-3274655-1303608667 -C 2400 -W 1300 -M 7680 --output-limit 1,15  HOME/minisat_noassertions HOME/instance-3274655-1303608667.cnf

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= b91fa4fe3fb0fdf9c902d36266504764
RANDOM SEED=112585851

node118.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.842
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.68
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.842
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.842
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.842
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.842
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.68
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.842
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.842
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.842
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5374.59
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      20488696 kB
Buffers:       1859840 kB
Cached:       10016380 kB
SwapCached:        600 kB
Active:        8482852 kB
Inactive:      3458028 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20488696 kB
SwapTotal:    67111528 kB
SwapFree:     67110396 kB
Dirty:            3288 kB
Writeback:           0 kB
AnonPages:       64124 kB
Mapped:          14580 kB
Slab:           459016 kB
PageTables:       5116 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   192912 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 71740 MiB
End job on node118 at 2011-04-24 03:31:08