Trace number 421309

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, and are wall clock time (not CPU 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
minisat SAT 2007SAT 4.77027 4.77474

General information on the benchmark

Namerandom/2+p/p0.7/v3500/
unif2p-p0.7-v3500-c9345-S1671384215-01-SAT.cnf
MD5SUMb44330819e18ebafb103a47668b9fb76
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.829873
Satisfiable
(Un)Satisfiability was proved
Number of variables3499
Number of clauses9344
Sum of the clauses size25229
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22803
Number of clauses of size 36541
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

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:  3500                                                 |
0.00/0.00	c |  Number of clauses:    9344                                                 |
0.00/0.01	c |  Parsing time:         0.01         s                                       |
0.01/0.03	c ============================[ Search Statistics ]==============================
0.01/0.03	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.01/0.03	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.01/0.03	c ===============================================================================
0.01/0.03	c |         0 |    2438     7763    23516 |     2587        0    nan |  0.000 % |
0.01/0.04	c |       101 |    2437     7763    23516 |     2846      100     17 |  0.143 % |
0.01/0.06	c |       251 |    2434     7741    23455 |     3131      250     19 |  0.143 % |
0.01/0.08	c |       476 |    2434     7741    23455 |     3444      475     20 |  0.143 % |
0.09/0.12	c |       813 |    2434     7741    23455 |     3788      812     22 |  0.143 % |
0.09/0.18	c |      1319 |    2434     7741    23455 |     4167     1318     23 |  0.143 % |
0.19/0.28	c |      2078 |    2434     7741    23455 |     4584     2077     22 |  0.143 % |
0.39/0.43	c |      3217 |    2434     7741    23455 |     5042     3216     22 |  0.143 % |
0.59/0.69	c |      4925 |    2434     7741    23455 |     5546     4924     22 |  0.143 % |
1.10/1.11	c |      7487 |    2434     7741    23455 |     6101     4583     22 |  0.143 % |
1.69/1.71	c |     11331 |    2434     7741    23455 |     6711     5201     23 |  0.143 % |
2.69/2.71	c |     17097 |    2434     7741    23455 |     7382     4050     19 |  0.143 % |
4.19/4.20	c |     25746 |    2434     7741    23455 |     8121     5099     18 |  0.143 % |
4.69/4.77	c ===============================================================================
4.69/4.77	c restarts              : 13
4.69/4.77	c conflicts             : 28994          (6083 /sec)
4.69/4.77	c decisions             : 37208          (1.70 % random) (7807 /sec)
4.69/4.77	c propagations          : 8651828        (1815218 /sec)
4.69/4.77	c conflict literals     : 661567         (42.18 % deleted)
4.69/4.77	c Memory used           : 3.68 MB
4.69/4.77	c CPU time              : 4.76628 s
4.69/4.77	c 
4.69/4.77	s SATISFIABLE
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Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node37/watcher-421309-1177502428 -o ROOT/results/node37/solver-421309-1177502428 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/421309-1177502428/minisat_noassertions /tmp/evaluation/421309-1177502428/instance-421309-1177502428.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 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: 1.00 0.99 0.91 3/78 25687
/proc/meminfo: memFree=1955280/2055920 swapFree=4145428/4192956
[pid=25687] ppid=25685 vsize=2308 CPUtime=0
/proc/25687/stat : 25687 (minisat_noasser) R 25685 25687 24499 0 -1 4194304 252 0 0 0 0 0 0 0 18 0 1 0 198155267 2363392 238 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134531128 0 0 4096 3 0 0 0 17 1 0 0
/proc/25687/statm: 577 238 50 130 0 444 0

[startup+0.017537 s]
/proc/loadavg: 1.00 0.99 0.91 3/78 25687
/proc/meminfo: memFree=1955280/2055920 swapFree=4145428/4192956
[pid=25687] ppid=25685 vsize=2704 CPUtime=0.01
/proc/25687/stat : 25687 (minisat_noasser) R 25685 25687 24499 0 -1 4194304 373 0 0 0 1 0 0 0 18 0 1 0 198155267 2768896 359 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134683871 0 0 4096 3 0 0 0 17 1 0 0
/proc/25687/statm: 676 359 62 130 0 543 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2704

[startup+0.101552 s]
/proc/loadavg: 1.00 0.99 0.91 3/78 25687
/proc/meminfo: memFree=1955280/2055920 swapFree=4145428/4192956
[pid=25687] ppid=25685 vsize=3088 CPUtime=0.09
/proc/25687/stat : 25687 (minisat_noasser) R 25685 25687 24499 0 -1 4194304 481 0 0 0 9 0 0 0 18 0 1 0 198155267 3162112 467 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546809 0 0 4096 3 0 0 0 17 1 0 0
/proc/25687/statm: 772 467 66 130 0 639 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3088

[startup+0.30159 s]
/proc/loadavg: 1.00 0.99 0.91 3/78 25687
/proc/meminfo: memFree=1955280/2055920 swapFree=4145428/4192956
[pid=25687] ppid=25685 vsize=3088 CPUtime=0.29
/proc/25687/stat : 25687 (minisat_noasser) R 25685 25687 24499 0 -1 4194304 481 0 0 0 29 0 0 0 19 0 1 0 198155267 3162112 467 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134548216 0 0 4096 3 0 0 0 17 1 0 0
/proc/25687/statm: 772 467 66 130 0 639 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3088

[startup+0.702665 s]
/proc/loadavg: 1.00 0.99 0.91 3/78 25687
/proc/meminfo: memFree=1955280/2055920 swapFree=4145428/4192956
[pid=25687] ppid=25685 vsize=3220 CPUtime=0.69
/proc/25687/stat : 25687 (minisat_noasser) R 25685 25687 24499 0 -1 4194304 508 0 0 0 69 0 0 0 23 0 1 0 198155267 3297280 494 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547072 0 0 4096 3 0 0 0 17 1 0 0
/proc/25687/statm: 805 494 66 130 0 672 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3220

[startup+1.50182 s]
/proc/loadavg: 1.00 0.99 0.91 2/79 25688
/proc/meminfo: memFree=1953480/2055920 swapFree=4145428/4192956
[pid=25687] ppid=25685 vsize=3500 CPUtime=1.49
/proc/25687/stat : 25687 (minisat_noasser) R 25685 25687 24499 0 -1 4194304 567 0 0 0 149 0 0 0 25 0 1 0 198155267 3584000 553 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546980 0 0 4096 3 0 0 0 17 1 0 0
/proc/25687/statm: 875 553 66 130 0 742 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3500

[startup+3.10112 s]
/proc/loadavg: 1.00 0.99 0.91 2/79 25688
/proc/meminfo: memFree=1953160/2055920 swapFree=4145428/4192956
[pid=25687] ppid=25685 vsize=3500 CPUtime=3.09
/proc/25687/stat : 25687 (minisat_noasser) R 25685 25687 24499 0 -1 4194304 587 0 0 0 309 0 0 0 25 0 1 0 198155267 3584000 573 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547037 0 0 4096 3 0 0 0 17 1 0 0
/proc/25687/statm: 875 573 66 130 0 742 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3500

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

[startup+3.90127 s]
/proc/loadavg: 1.00 0.99 0.91 2/79 25688
/proc/meminfo: memFree=1953032/2055920 swapFree=4145428/4192956
[pid=25687] ppid=25685 vsize=3632 CPUtime=3.89
/proc/25687/stat : 25687 (minisat_noasser) R 25685 25687 24499 0 -1 4194304 609 0 0 0 389 0 0 0 25 0 1 0 198155267 3719168 595 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547304 0 0 4096 3 0 0 0 17 1 0 0
/proc/25687/statm: 908 595 66 130 0 775 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 3632

[startup+4.30134 s]
/proc/loadavg: 1.00 0.99 0.91 2/79 25688
/proc/meminfo: memFree=1952968/2055920 swapFree=4145428/4192956
[pid=25687] ppid=25685 vsize=3632 CPUtime=4.3
/proc/25687/stat : 25687 (minisat_noasser) R 25685 25687 24499 0 -1 4194304 611 0 0 0 430 0 0 0 25 0 1 0 198155267 3719168 597 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546937 0 0 4096 3 0 0 0 17 1 0 0
/proc/25687/statm: 908 597 66 130 0 775 0
Current children cumulated CPU time (s) 4.3
Current children cumulated vsize (KiB) 3632

[startup+4.70142 s]
/proc/loadavg: 1.00 0.99 0.91 2/79 25688
/proc/meminfo: memFree=1952968/2055920 swapFree=4145428/4192956
[pid=25687] ppid=25685 vsize=3764 CPUtime=4.69
/proc/25687/stat : 25687 (minisat_noasser) R 25685 25687 24499 0 -1 4194304 634 0 0 0 469 0 0 0 25 0 1 0 198155267 3854336 620 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546980 0 0 4096 3 0 0 0 17 1 0 0
/proc/25687/statm: 941 620 66 130 0 808 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 3764

Child status: 10
Real time (s): 4.77474
CPU time (s): 4.77027
CPU user time (s): 4.76727
CPU system time (s): 0.002999
CPU usage (%): 99.9064
Max. virtual memory (cumulated for all children) (KiB): 3764

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.76727
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 658
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= 8
involuntary context switches= 103

runsolver used 0.006998 second user time and 0.020996 second system time

The end

Launcher Data (download as text)

Begin job on node37 on Wed Apr 25 12:00:28 UTC 2007

IDJOB= 421309
IDBENCH= 20218
IDSOLVER= 188
FILE ID= node37/421309-1177502428

PBS_JOBID= 4685836

Free space on /tmp= 66415 MiB

SOLVER NAME= minisat SAT 2007
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.7/v3500/unif2p-p0.7-v3500-c9345-S1671384215-01-SAT.cnf
COMMAND LINE= /tmp/evaluation/421309-1177502428/minisat_noassertions /tmp/evaluation/421309-1177502428/instance-421309-1177502428.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node37/watcher-421309-1177502428 -o ROOT/results/node37/solver-421309-1177502428 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/421309-1177502428/minisat_noassertions /tmp/evaluation/421309-1177502428/instance-421309-1177502428.cnf

META MD5SUM SOLVER= 80cbedba287df00eb7b45eadedad758b
MD5SUM BENCH=  b44330819e18ebafb103a47668b9fb76

RANDOM SEED= 9016967

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node37.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.281
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.281
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1955752 kB
Buffers:         10692 kB
Cached:          23708 kB
SwapCached:      15308 kB
Active:          41368 kB
Inactive:        16132 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1955752 kB
SwapTotal:     4192956 kB
SwapFree:      4145428 kB
Dirty:            1692 kB
Writeback:           0 kB
Mapped:          30044 kB
Slab:            27992 kB
Committed_AS:  2087552 kB
PageTables:       2000 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66415 MiB

End job on node37 on Wed Apr 25 12:00:33 UTC 2007