Trace number 422229

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 2.50762 2.51112

General information on the benchmark

Namecrafted/Medium/contest05/sabharwal/
sat-strips-gripper-10t19.sat05-1143.reshuffled-07.cnf
MD5SUM5f1638b2d73ac0a792b4a7e3c6c55623
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.14982
Satisfiable
(Un)Satisfiability was proved
Number of variables3390
Number of clauses53225
Sum of the clauses size108346
Maximum clause length22
Minimum clause length1
Number of clauses of size 137
Number of clauses of size 252453
Number of clauses of size 393
Number of clauses of size 4610
Number of clauses of size 50
Number of clauses of size over 532

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:  3390                                                 |
0.00/0.00	c |  Number of clauses:    53225                                                |
0.03/0.05	c |  Parsing time:         0.05         s                                       |
0.39/0.45	c ============================[ Search Statistics ]==============================
0.39/0.45	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.39/0.45	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.39/0.45	c ===============================================================================
0.39/0.45	c |         0 |    1907    40048    93014 |    13349        0    nan |  0.000 % |
0.39/0.46	c |       100 |    1907    40048    93014 |    14684      100      9 |  1.093 % |
0.39/0.47	c |       251 |    1907    40048    93014 |    16152      251      8 |  1.091 % |
0.39/0.49	c |       476 |    1907    40048    93014 |    17767      476     16 |  1.091 % |
0.49/0.51	c |       813 |    1907    40048    93014 |    19544      813     16 |  1.092 % |
0.49/0.55	c |      1320 |    1907    40048    93014 |    21499     1320     17 |  1.092 % |
0.59/0.60	c |      2079 |    1907    40048    93014 |    23649     2079     16 |  1.091 % |
0.69/0.72	c |      3218 |    1907    40048    93014 |    26014     3218     18 |  1.092 % |
0.79/0.85	c |      4928 |    1907    40048    93014 |    28615     4928     16 |  1.092 % |
1.09/1.18	c |      7490 |    1907    40048    93014 |    31477     7490     18 |  1.091 % |
1.79/1.82	c |     11334 |    1907    40048    93014 |    34624    11334     23 |  1.093 % |
2.49/2.50	c ===============================================================================
2.49/2.50	c restarts              : 11
2.49/2.50	c conflicts             : 15731          (6303 /sec)
2.49/2.50	c decisions             : 23799          (0.96 % random) (9536 /sec)
2.49/2.50	c propagations          : 3043246        (1219435 /sec)
2.49/2.50	c conflict literals     : 394744         (28.95 % deleted)
2.49/2.50	c Memory used           : 7.25 MB
2.49/2.50	c CPU time              : 2.49562 s
2.49/2.50	c 
2.49/2.50	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/node55/watcher-422229-1177551819 -o ROOT/results/node55/solver-422229-1177551819 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/422229-1177551819/minisat_noassertions /tmp/evaluation/422229-1177551819/instance-422229-1177551819.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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: 1.01 0.97 0.91 3/64 15674
/proc/meminfo: memFree=1447932/2055920 swapFree=4184544/4192956
[pid=15674] ppid=15672 vsize=2176 CPUtime=0
/proc/15674/stat : 15674 (minisat_noasser) R 15672 15674 14633 0 -1 4194304 368 0 0 0 0 0 0 0 18 0 1 0 203091948 2228224 354 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134682150 0 0 4096 3 0 0 0 17 1 0 0
/proc/15674/statm: 544 354 50 130 0 411 0

[startup+0.0353949 s]
/proc/loadavg: 1.01 0.97 0.91 3/64 15674
/proc/meminfo: memFree=1447932/2055920 swapFree=4184544/4192956
[pid=15674] ppid=15672 vsize=3924 CPUtime=0.03
/proc/15674/stat : 15674 (minisat_noasser) R 15672 15674 14633 0 -1 4194304 776 0 0 0 3 0 0 0 18 0 1 0 203091948 4018176 762 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134683871 0 0 4096 3 0 0 0 17 1 0 0
/proc/15674/statm: 981 762 50 130 0 848 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 3924

[startup+0.1014 s]
/proc/loadavg: 1.01 0.97 0.91 3/64 15674
/proc/meminfo: memFree=1447932/2055920 swapFree=4184544/4192956
[pid=15674] ppid=15672 vsize=5136 CPUtime=0.09
/proc/15674/stat : 15674 (minisat_noasser) R 15672 15674 14633 0 -1 4194304 1095 0 0 0 9 0 0 0 18 0 1 0 203091948 5259264 1081 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134529224 0 0 4096 3 0 0 0 17 1 0 0
/proc/15674/statm: 1284 1081 62 130 0 1151 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5136

[startup+0.301418 s]
/proc/loadavg: 1.01 0.97 0.91 3/64 15674
/proc/meminfo: memFree=1447932/2055920 swapFree=4184544/4192956
[pid=15674] ppid=15672 vsize=7140 CPUtime=0.29
/proc/15674/stat : 15674 (minisat_noasser) R 15672 15674 14633 0 -1 4194304 1585 0 0 0 29 0 0 0 19 0 1 0 203091948 7311360 1571 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134526838 0 0 4096 3 0 0 0 17 1 0 0
/proc/15674/statm: 1785 1571 62 130 0 1652 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7140

[startup+0.701457 s]
/proc/loadavg: 1.01 0.97 0.91 3/64 15674
/proc/meminfo: memFree=1447932/2055920 swapFree=4184544/4192956
[pid=15674] ppid=15672 vsize=6860 CPUtime=0.69
/proc/15674/stat : 15674 (minisat_noasser) R 15672 15674 14633 0 -1 4194304 1708 0 0 0 69 0 0 0 23 0 1 0 203091948 7024640 1516 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546920 0 0 4096 3 0 0 0 17 1 0 0
/proc/15674/statm: 1715 1516 66 130 0 1582 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6860

[startup+1.50153 s]
/proc/loadavg: 1.01 0.97 0.91 2/65 15675
/proc/meminfo: memFree=1441972/2055920 swapFree=4184544/4192956
[pid=15674] ppid=15672 vsize=6860 CPUtime=1.49
/proc/15674/stat : 15674 (minisat_noasser) R 15672 15674 14633 0 -1 4194304 1715 0 0 0 149 0 0 0 25 0 1 0 203091948 7024640 1523 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546870 0 0 4096 3 0 0 0 17 1 0 0
/proc/15674/statm: 1715 1523 66 130 0 1582 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6860

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

[startup+2.30161 s]
/proc/loadavg: 1.01 0.97 0.91 2/65 15675
/proc/meminfo: memFree=1441780/2055920 swapFree=4184544/4192956
[pid=15674] ppid=15672 vsize=7292 CPUtime=2.29
/proc/15674/stat : 15674 (minisat_noasser) R 15672 15674 14633 0 -1 4194304 1801 0 0 0 229 0 0 0 25 0 1 0 203091948 7467008 1609 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546927 0 0 4096 3 0 0 0 17 1 0 0
/proc/15674/statm: 1823 1609 66 130 0 1690 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 7292

[startup+2.50163 s]
/proc/loadavg: 1.01 0.97 0.91 2/65 15675
/proc/meminfo: memFree=1441780/2055920 swapFree=4184544/4192956
[pid=15674] ppid=15672 vsize=7424 CPUtime=2.49
/proc/15674/stat : 15674 (minisat_noasser) R 15672 15674 14633 0 -1 4194304 1846 0 0 0 249 0 0 0 25 0 1 0 203091948 7602176 1654 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546937 0 0 4096 3 0 0 0 17 1 0 0
/proc/15674/statm: 1856 1654 66 130 0 1723 0
Current children cumulated CPU time (s) 2.49
Current children cumulated vsize (KiB) 7424

Child status: 10
Real time (s): 2.51112
CPU time (s): 2.50762
CPU user time (s): 2.49662
CPU system time (s): 0.010998
CPU usage (%): 99.8604
Max. virtual memory (cumulated for all children) (KiB): 7672

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.49662
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1855
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= 5

runsolver used 0.003999 second user time and 0.011998 second system time

The end

Launcher Data (download as text)

Begin job on node55 on Thu Apr 26 01:43:39 UTC 2007

IDJOB= 422229
IDBENCH= 24577
IDSOLVER= 189
FILE ID= node55/422229-1177551819

PBS_JOBID= 4696628

Free space on /tmp= 66371 MiB

SOLVER NAME= minisat SAT 2007
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/sabharwal/sat-strips-gripper-10t19.sat05-1143.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/422229-1177551819/minisat_noassertions /tmp/evaluation/422229-1177551819/instance-422229-1177551819.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node55/watcher-422229-1177551819 -o ROOT/results/node55/solver-422229-1177551819 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/422229-1177551819/minisat_noassertions /tmp/evaluation/422229-1177551819/instance-422229-1177551819.cnf

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  5f1638b2d73ac0a792b4a7e3c6c55623

RANDOM SEED= 462634049

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node55.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		: 3000.216
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		: 3000.216
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:       1448340 kB
Buffers:         48300 kB
Cached:         444932 kB
SwapCached:       2556 kB
Active:         287860 kB
Inactive:       253328 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1448340 kB
SwapTotal:     4192956 kB
SwapFree:      4184544 kB
Dirty:            2360 kB
Writeback:           0 kB
Mapped:          54360 kB
Slab:            52324 kB
Committed_AS:  1372236 kB
PageTables:       1496 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= 66371 MiB

End job on node55 on Thu Apr 26 01:43:42 UTC 2007