Trace number 428069

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
minimarch 2007-04-26 (fixed)SAT 13.286 13.2961

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S1762612346-15-SAT.cnf
MD5SUMe5673a7c266f877ed2c58f7b531e89ad
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.052991
Satisfiable
(Un)Satisfiability was proved
Number of variables1295
Number of clauses4026
Sum of the clauses size11273
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2805
Number of clauses of size 33221
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	This is MiniMarch 1.1, a modified version of MiniSat 2.0 beta
0.00/0.00	WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	============================[ Problem Statistics ]=============================
0.00/0.00	|                                                                             |
0.00/0.00	|  Number of variables:  1295                                                 |
0.00/0.00	|  Number of clauses:    4026                                                 |
0.00/0.01	|  Parsing time:         0.01         s                                       |
0.00/0.02	============================[ Search Statistics ]==============================
0.00/0.02	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.02	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.02	===============================================================================
0.00/0.02	|         0 |    1098     3713    11015 |     1237        0    nan |  0.000 % |
0.02/0.03	|       100 |    1098     3713    11015 |     1361      100     18 |  0.000 % |
0.02/0.04	|       251 |    1098     3713    11015 |     1497      251     18 |  0.000 % |
0.02/0.05	|       479 |    1098     3713    11015 |     1647      479     19 |  0.000 % |
0.02/0.08	|       817 |    1098     3713    11015 |     1812      817     19 |  0.000 % |
0.09/0.12	|      1326 |    1098     3713    11015 |     1993     1326     19 |  0.000 % |
0.09/0.18	|      2086 |    1098     3713    11015 |     2192     2086     19 |  0.000 % |
0.19/0.28	|      3226 |    1098     3713    11015 |     2411     2053     21 |  0.000 % |
0.39/0.43	|      4937 |    1098     3713    11015 |     2653     2501     21 |  0.000 % |
0.59/0.66	|      7499 |    1098     3713    11015 |     2918     2347     20 |  0.000 % |
0.99/1.01	|     11343 |    1098     3713    11015 |     3210     1650     19 |  0.001 % |
1.49/1.55	|     17109 |    1098     3713    11015 |     3531     2455     19 |  0.000 % |
2.29/2.38	|     25758 |    1098     3713    11015 |     3884     1984     18 |  0.000 % |
3.59/3.66	|     38733 |    1098     3713    11015 |     4272     3082     19 |  0.000 % |
5.69/5.74	|     58194 |    1098     3713    11015 |     4700     2794     18 |  0.000 % |
8.79/8.81	|     87386 |    1098     3713    11015 |     5170     3196     20 |  0.000 % |
13.19/13.29	===============================================================================
13.19/13.29	lookaheads            : 8671
13.19/13.29	variable balance      : 0.00
13.19/13.29	restarts              : 16
13.19/13.29	conflicts             : 127468         (9597 /sec)
13.19/13.29	decisions             : 162990         (1.71 % random) (12272 /sec)
13.19/13.29	decision = positive   : 98655
13.19/13.29	decision = negative   : 64334
13.19/13.29	propagations          : 19450971       (1464463 /sec)
13.19/13.29	conflict literals     : 2953699        (36.48 % deleted)
13.19/13.29	Memory used           : 3.20 MB
13.19/13.29	CPU time              : 13.282 s
13.19/13.29	
13.19/13.29	s SATISFIABLE
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1291 -1292 1293 -1294 1295 0

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/node54/watcher-428069-1177700953 -o ROOT/results/node54/solver-428069-1177700953 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/428069-1177700953/minimarch_fixed /tmp/evaluation/428069-1177700953/instance-428069-1177700953.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: 0.89 0.95 0.98 2/66 3116
/proc/meminfo: memFree=1439232/2055920 swapFree=4182164/4192956
[pid=3116] ppid=3114 vsize=2000 CPUtime=0
/proc/3116/stat : 3116 (minimarch_fixed) R 3114 3116 2194 0 -1 4194304 152 0 0 0 0 0 0 0 18 0 1 0 217469772 2048000 137 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134517917 0 0 4096 3 0 0 0 17 1 0 0
/proc/3116/statm: 500 137 51 132 0 365 0

[startup+0.0300701 s]
/proc/loadavg: 0.89 0.95 0.98 2/66 3116
/proc/meminfo: memFree=1439232/2055920 swapFree=4182164/4192956
[pid=3116] ppid=3114 vsize=2224 CPUtime=0.02
/proc/3116/stat : 3116 (minimarch_fixed) R 3114 3116 2194 0 -1 4194304 236 0 0 0 2 0 0 0 18 0 1 0 217469772 2277376 221 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134553230 0 0 4096 3 0 0 0 17 1 0 0
/proc/3116/statm: 556 221 67 132 0 421 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2224

[startup+0.101078 s]
/proc/loadavg: 0.89 0.95 0.98 2/66 3116
/proc/meminfo: memFree=1439232/2055920 swapFree=4182164/4192956
[pid=3116] ppid=3114 vsize=2224 CPUtime=0.09
/proc/3116/stat : 3116 (minimarch_fixed) R 3114 3116 2194 0 -1 4194304 236 0 0 0 9 0 0 0 18 0 1 0 217469772 2277376 221 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551218 0 0 4096 3 0 0 0 17 1 0 0
/proc/3116/statm: 556 221 67 132 0 421 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2224

[startup+0.301103 s]
/proc/loadavg: 0.89 0.95 0.98 2/66 3116
/proc/meminfo: memFree=1439232/2055920 swapFree=4182164/4192956
[pid=3116] ppid=3114 vsize=2356 CPUtime=0.29
/proc/3116/stat : 3116 (minimarch_fixed) R 3114 3116 2194 0 -1 4194304 267 0 0 0 29 0 0 0 19 0 1 0 217469772 2412544 252 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134556909 0 0 4096 3 0 0 0 17 1 0 0
/proc/3116/statm: 589 252 67 132 0 454 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2356

[startup+0.701155 s]
/proc/loadavg: 0.89 0.95 0.98 2/66 3116
/proc/meminfo: memFree=1439232/2055920 swapFree=4182164/4192956
[pid=3116] ppid=3114 vsize=2488 CPUtime=0.69
/proc/3116/stat : 3116 (minimarch_fixed) R 3114 3116 2194 0 -1 4194304 293 0 0 0 69 0 0 0 22 0 1 0 217469772 2547712 278 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551337 0 0 4096 3 0 0 0 17 1 0 0
/proc/3116/statm: 622 278 67 132 0 487 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2488

[startup+1.50126 s]
/proc/loadavg: 0.89 0.95 0.98 2/67 3117
/proc/meminfo: memFree=1438392/2055920 swapFree=4182164/4192956
[pid=3116] ppid=3114 vsize=2620 CPUtime=1.49
/proc/3116/stat : 3116 (minimarch_fixed) R 3114 3116 2194 0 -1 4194304 330 0 0 0 149 0 0 0 25 0 1 0 217469772 2682880 315 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551365 0 0 4096 3 0 0 0 17 1 0 0
/proc/3116/statm: 655 315 67 132 0 520 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2620

[startup+3.10146 s]
/proc/loadavg: 0.89 0.95 0.98 2/67 3117
/proc/meminfo: memFree=1438072/2055920 swapFree=4182164/4192956
[pid=3116] ppid=3114 vsize=2620 CPUtime=3.09
/proc/3116/stat : 3116 (minimarch_fixed) R 3114 3116 2194 0 -1 4194304 355 0 0 0 309 0 0 0 25 0 1 0 217469772 2682880 340 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551227 0 0 4096 3 0 0 0 17 1 0 0
/proc/3116/statm: 655 340 67 132 0 520 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2620

[startup+6.30191 s]
/proc/loadavg: 0.90 0.95 0.98 2/67 3117
/proc/meminfo: memFree=1437688/2055920 swapFree=4182164/4192956
[pid=3116] ppid=3114 vsize=2884 CPUtime=6.29
/proc/3116/stat : 3116 (minimarch_fixed) R 3114 3116 2194 0 -1 4194304 422 0 0 0 629 0 0 0 25 0 1 0 217469772 2953216 407 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551247 0 0 4096 3 0 0 0 17 1 0 0
/proc/3116/statm: 721 407 67 132 0 586 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2884

[startup+12.7017 s]
/proc/loadavg: 0.91 0.95 0.98 2/67 3117
/proc/meminfo: memFree=1437304/2055920 swapFree=4182164/4192956
[pid=3116] ppid=3114 vsize=3276 CPUtime=12.69
/proc/3116/stat : 3116 (minimarch_fixed) R 3114 3116 2194 0 -1 4194304 490 0 0 0 1269 0 0 0 25 0 1 0 217469772 3354624 475 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551296 0 0 4096 3 0 0 0 17 1 0 0
/proc/3116/statm: 819 475 67 132 0 684 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3276

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

[startup+13.1017 s]
/proc/loadavg: 0.91 0.95 0.98 2/67 3117
/proc/meminfo: memFree=1437304/2055920 swapFree=4182164/4192956
[pid=3116] ppid=3114 vsize=3276 CPUtime=13.09
/proc/3116/stat : 3116 (minimarch_fixed) R 3114 3116 2194 0 -1 4194304 495 0 0 0 1309 0 0 0 25 0 1 0 217469772 3354624 480 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551218 0 0 4096 3 0 0 0 17 1 0 0
/proc/3116/statm: 819 480 67 132 0 684 0
Current children cumulated CPU time (s) 13.09
Current children cumulated vsize (KiB) 3276

[startup+13.2067 s]
/proc/loadavg: 0.91 0.95 0.98 2/67 3117
/proc/meminfo: memFree=1437304/2055920 swapFree=4182164/4192956
[pid=3116] ppid=3114 vsize=3276 CPUtime=13.19
/proc/3116/stat : 3116 (minimarch_fixed) R 3114 3116 2194 0 -1 4194304 504 0 0 0 1319 0 0 0 25 0 1 0 217469772 3354624 489 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134552586 0 0 4096 3 0 0 0 17 1 0 0
/proc/3116/statm: 819 489 67 132 0 684 0
Current children cumulated CPU time (s) 13.19
Current children cumulated vsize (KiB) 3276

Child status: 10
Real time (s): 13.2961
CPU time (s): 13.286
CPU user time (s): 13.282
CPU system time (s): 0.003999
CPU usage (%): 99.924
Max. virtual memory (cumulated for all children) (KiB): 3280

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 13.282
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 512
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= 28

runsolver used 0.012998 second user time and 0.043993 second system time

The end

Launcher Data (download as text)

Begin job on node54 on Fri Apr 27 19:09:13 UTC 2007

IDJOB= 428069
IDBENCH= 20299
IDSOLVER= 198
FILE ID= node54/428069-1177700953

PBS_JOBID= 4698688

Free space on /tmp= 66474 MiB

SOLVER NAME= minimarch 2007-04-26 (fixed)
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S1762612346-15-SAT.cnf
COMMAND LINE= /tmp/evaluation/428069-1177700953/minimarch_fixed /tmp/evaluation/428069-1177700953/instance-428069-1177700953.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node54/watcher-428069-1177700953 -o ROOT/results/node54/solver-428069-1177700953 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/428069-1177700953/minimarch_fixed /tmp/evaluation/428069-1177700953/instance-428069-1177700953.cnf

META MD5SUM SOLVER= 08d902191c06ef4f82d57c2f2b6a82c2
MD5SUM BENCH=  e5673a7c266f877ed2c58f7b531e89ad

RANDOM SEED= 704626649

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node54.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		: 3000.234
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		: 3000.234
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:       1439704 kB
Buffers:         54824 kB
Cached:         478248 kB
SwapCached:       4128 kB
Active:         233900 kB
Inactive:       309304 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1439704 kB
SwapTotal:     4192956 kB
SwapFree:      4182164 kB
Dirty:            3064 kB
Writeback:           0 kB
Mapped:          16036 kB
Slab:            58936 kB
Committed_AS:  2355716 kB
PageTables:       1412 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66474 MiB

End job on node54 on Fri Apr 27 19:09:26 UTC 2007