Trace number 428141

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 33.3809 33.3922

General information on the benchmark

Namerandom/2+p/p0.8/v1665/
unif2p-p0.8-v1665-c5178-S1939769766-11-SAT.cnf
MD5SUM6a3b3e57d22696582c0456812681e53c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.060989
Satisfiable
(Un)Satisfiability was proved
Number of variables1664
Number of clauses5177
Sum of the clauses size14496
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 21035
Number of clauses of size 34142
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:  1665                                                 |
0.00/0.00	|  Number of clauses:    5177                                                 |
0.00/0.01	|  Parsing time:         0.01         s                                       |
0.00/0.03	============================[ Search Statistics ]==============================
0.00/0.03	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.03	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.03	===============================================================================
0.00/0.03	|         0 |    1403     4801    14425 |     1600        0    nan |  0.000 % |
0.00/0.03	|       100 |    1403     4801    14425 |     1760      100     26 |  0.000 % |
0.00/0.04	|       250 |    1403     4801    14425 |     1936      250     23 |  0.000 % |
0.00/0.06	|       475 |    1403     4801    14425 |     2130      475     26 |  0.000 % |
0.00/0.09	|       812 |    1403     4801    14425 |     2343      812     25 |  0.000 % |
0.10/0.13	|      1319 |    1403     4801    14425 |     2577     1319     27 |  0.000 % |
0.20/0.20	|      2078 |    1403     4801    14425 |     2835     2078     26 |  0.000 % |
0.29/0.31	|      3217 |    1403     4801    14425 |     3118     1703     24 |  0.000 % |
0.39/0.48	|      4925 |    1403     4801    14425 |     3430     1795     22 |  0.000 % |
0.69/0.76	|      7489 |    1403     4801    14425 |     3773     2560     22 |  0.000 % |
1.10/1.17	|     11333 |    1403     4801    14425 |     4150     2485     23 |  0.000 % |
1.79/1.83	|     17100 |    1403     4801    14425 |     4565     3875     25 |  0.000 % |
2.79/2.85	|     25752 |    1403     4801    14425 |     5022     3144     22 |  0.000 % |
4.29/4.39	|     38726 |    1403     4801    14425 |     5524     3184     25 |  0.000 % |
6.99/7.01	|     58190 |    1403     4801    14425 |     6077     5433     26 |  0.000 % |
10.99/11.00	|     87382 |    1403     4801    14425 |     6684     3497     22 |  0.000 % |
17.08/17.11	|    131171 |    1403     4801    14425 |     7353     6170     28 |  0.000 % |
26.48/26.51	|    196856 |    1403     4801    14425 |     8088     4194     23 |  0.000 % |
33.28/33.38	===============================================================================
33.28/33.38	lookaheads            : 13279
33.28/33.38	variable balance      : 0.00
33.28/33.38	restarts              : 18
33.28/33.38	conflicts             : 241759         (7244 /sec)
33.28/33.38	decisions             : 310539         (1.73 % random) (9305 /sec)
33.28/33.38	decision = positive   : 157240
33.28/33.38	decision = negative   : 153298
33.28/33.38	propagations          : 44704953       (1339598 /sec)
33.28/33.38	conflict literals     : 7041464        (36.51 % deleted)
33.28/33.38	Memory used           : 4.53 MB
33.28/33.38	CPU time              : 33.3719 s
33.28/33.38	
33.28/33.38	s SATISFIABLE
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-1658 -1659 1660 1661 -1662 -1663 -1664 -1665 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/node57/watcher-428141-1177702797 -o ROOT/results/node57/solver-428141-1177702797 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/428141-1177702797/minimarch_fixed /tmp/evaluation/428141-1177702797/instance-428141-1177702797.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: 1.07 1.00 1.00 3/64 11412
/proc/meminfo: memFree=1696464/2055920 swapFree=4183136/4192956
[pid=11412] ppid=11410 vsize=2132 CPUtime=0
/proc/11412/stat : 11412 (minimarch_fixed) R 11410 11412 10623 0 -1 4194304 196 0 0 0 0 0 0 0 18 0 1 0 211415675 2183168 181 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134562614 0 0 4096 3 0 0 0 17 1 0 0
/proc/11412/statm: 533 181 51 132 0 398 0

[startup+0.0068911 s]
/proc/loadavg: 1.07 1.00 1.00 3/64 11412
/proc/meminfo: memFree=1696464/2055920 swapFree=4183136/4192956
[pid=11412] ppid=11410 vsize=2132 CPUtime=0
/proc/11412/stat : 11412 (minimarch_fixed) R 11410 11412 10623 0 -1 4194304 221 0 0 0 0 0 0 0 18 0 1 0 211415675 2183168 206 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134848966 0 0 4096 3 0 0 0 17 1 0 0
/proc/11412/statm: 566 207 51 132 0 431 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 2132

[startup+0.101898 s]
/proc/loadavg: 1.07 1.00 1.00 3/64 11412
/proc/meminfo: memFree=1696464/2055920 swapFree=4183136/4192956
[pid=11412] ppid=11410 vsize=2388 CPUtime=0.1
/proc/11412/stat : 11412 (minimarch_fixed) R 11410 11412 10623 0 -1 4194304 284 0 0 0 10 0 0 0 18 0 1 0 211415675 2445312 269 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134557540 0 0 4096 3 0 0 0 17 1 0 0
/proc/11412/statm: 597 269 67 132 0 462 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2388

[startup+0.301916 s]
/proc/loadavg: 1.07 1.00 1.00 3/64 11412
/proc/meminfo: memFree=1696464/2055920 swapFree=4183136/4192956
[pid=11412] ppid=11410 vsize=2520 CPUtime=0.29
/proc/11412/stat : 11412 (minimarch_fixed) R 11410 11412 10623 0 -1 4194304 337 0 0 0 29 0 0 0 19 0 1 0 211415675 2580480 322 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134553216 0 0 4096 3 0 0 0 17 1 0 0
/proc/11412/statm: 630 322 67 132 0 495 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2520

[startup+0.70195 s]
/proc/loadavg: 1.07 1.00 1.00 3/64 11412
/proc/meminfo: memFree=1696464/2055920 swapFree=4183136/4192956
[pid=11412] ppid=11410 vsize=2652 CPUtime=0.69
/proc/11412/stat : 11412 (minimarch_fixed) R 11410 11412 10623 0 -1 4194304 362 0 0 0 69 0 0 0 22 0 1 0 211415675 2715648 347 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551374 0 0 4096 3 0 0 0 17 1 0 0
/proc/11412/statm: 663 347 67 132 0 528 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2652

[startup+1.50202 s]
/proc/loadavg: 1.07 1.00 1.00 2/65 11413
/proc/meminfo: memFree=1695368/2055920 swapFree=4183136/4192956
[pid=11412] ppid=11410 vsize=2784 CPUtime=1.49
/proc/11412/stat : 11412 (minimarch_fixed) R 11410 11412 10623 0 -1 4194304 398 0 0 0 149 0 0 0 25 0 1 0 211415675 2850816 383 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551227 0 0 4096 3 0 0 0 17 1 0 0
/proc/11412/statm: 696 383 67 132 0 561 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2784

[startup+3.10119 s]
/proc/loadavg: 1.07 1.00 1.00 2/65 11413
/proc/meminfo: memFree=1694984/2055920 swapFree=4183136/4192956
[pid=11412] ppid=11410 vsize=3048 CPUtime=3.09
/proc/11412/stat : 11412 (minimarch_fixed) R 11410 11412 10623 0 -1 4194304 449 0 0 0 309 0 0 0 25 0 1 0 211415675 3121152 434 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134550956 0 0 4096 3 0 0 0 17 1 0 0
/proc/11412/statm: 762 434 67 132 0 627 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3048

[startup+6.30147 s]
/proc/loadavg: 1.07 1.00 1.00 2/65 11413
/proc/meminfo: memFree=1694472/2055920 swapFree=4183136/4192956
[pid=11412] ppid=11410 vsize=3444 CPUtime=6.29
/proc/11412/stat : 11412 (minimarch_fixed) R 11410 11412 10623 0 -1 4194304 542 0 0 0 629 0 0 0 25 0 1 0 211415675 3526656 527 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551667 0 0 4096 3 0 0 0 17 1 0 0
/proc/11412/statm: 861 527 67 132 0 726 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 3444

[startup+12.702 s]
/proc/loadavg: 1.06 1.00 1.00 2/65 11413
/proc/meminfo: memFree=1694032/2055920 swapFree=4183136/4192956
[pid=11412] ppid=11410 vsize=3708 CPUtime=12.69
/proc/11412/stat : 11412 (minimarch_fixed) R 11410 11412 10623 0 -1 4194304 627 0 0 0 1269 0 0 0 25 0 1 0 211415675 3796992 612 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551377 0 0 4096 3 0 0 0 17 1 0 0
/proc/11412/statm: 927 612 67 132 0 792 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3708

[startup+25.5011 s]
/proc/loadavg: 1.05 1.00 1.00 2/65 11413
/proc/meminfo: memFree=1693584/2055920 swapFree=4183136/4192956
[pid=11412] ppid=11410 vsize=4236 CPUtime=25.48
/proc/11412/stat : 11412 (minimarch_fixed) R 11410 11412 10623 0 -1 4194304 744 0 0 0 2548 0 0 0 25 0 1 0 211415675 4337664 729 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551374 0 0 4096 3 0 0 0 17 1 0 0
/proc/11412/statm: 1059 729 67 132 0 924 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 4236

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

[startup+28.7014 s]
/proc/loadavg: 1.05 1.00 1.00 2/65 11413
/proc/meminfo: memFree=1693456/2055920 swapFree=4183136/4192956
[pid=11412] ppid=11410 vsize=4368 CPUtime=28.68
/proc/11412/stat : 11412 (minimarch_fixed) R 11410 11412 10623 0 -1 4194304 792 0 0 0 2868 0 0 0 25 0 1 0 211415675 4472832 777 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134553453 0 0 4096 3 0 0 0 17 1 0 0
/proc/11412/statm: 1092 777 67 132 0 957 0
Current children cumulated CPU time (s) 28.68
Current children cumulated vsize (KiB) 4368

[startup+31.9057 s]
/proc/loadavg: 1.04 1.00 1.00 2/65 11413
/proc/meminfo: memFree=1693264/2055920 swapFree=4183136/4192956
[pid=11412] ppid=11410 vsize=4632 CPUtime=31.88
/proc/11412/stat : 11412 (minimarch_fixed) R 11410 11412 10623 0 -1 4194304 838 0 0 0 3188 0 0 0 25 0 1 0 211415675 4743168 823 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134557141 0 0 4096 3 0 0 0 17 1 0 0
/proc/11412/statm: 1158 823 67 132 0 1023 0
Current children cumulated CPU time (s) 31.88
Current children cumulated vsize (KiB) 4632

[startup+32.7017 s]
/proc/loadavg: 1.04 1.00 1.00 2/65 11413
/proc/meminfo: memFree=1693264/2055920 swapFree=4183136/4192956
[pid=11412] ppid=11410 vsize=4632 CPUtime=32.68
/proc/11412/stat : 11412 (minimarch_fixed) R 11410 11412 10623 0 -1 4194304 844 0 0 0 3268 0 0 0 25 0 1 0 211415675 4743168 829 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551287 0 0 4096 3 0 0 0 17 1 0 0
/proc/11412/statm: 1158 829 67 132 0 1023 0
Current children cumulated CPU time (s) 32.68
Current children cumulated vsize (KiB) 4632

[startup+33.1018 s]
/proc/loadavg: 1.04 1.00 1.00 2/65 11413
/proc/meminfo: memFree=1693200/2055920 swapFree=4183136/4192956
[pid=11412] ppid=11410 vsize=4632 CPUtime=33.08
/proc/11412/stat : 11412 (minimarch_fixed) R 11410 11412 10623 0 -1 4194304 844 0 0 0 3308 0 0 0 25 0 1 0 211415675 4743168 829 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551184 0 0 4096 3 0 0 0 17 1 0 0
/proc/11412/statm: 1158 829 67 132 0 1023 0
Current children cumulated CPU time (s) 33.08
Current children cumulated vsize (KiB) 4632

[startup+33.3028 s]
/proc/loadavg: 1.04 1.00 1.00 2/65 11413
/proc/meminfo: memFree=1693200/2055920 swapFree=4183136/4192956
[pid=11412] ppid=11410 vsize=4632 CPUtime=33.28
/proc/11412/stat : 11412 (minimarch_fixed) R 11410 11412 10623 0 -1 4194304 844 0 0 0 3328 0 0 0 25 0 1 0 211415675 4743168 829 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551218 0 0 4096 3 0 0 0 17 1 0 0
/proc/11412/statm: 1158 829 67 132 0 1023 0
Current children cumulated CPU time (s) 33.28
Current children cumulated vsize (KiB) 4632

Child status: 10
Real time (s): 33.3922
CPU time (s): 33.3809
CPU user time (s): 33.3729
CPU system time (s): 0.007998
CPU usage (%): 99.9663
Max. virtual memory (cumulated for all children) (KiB): 4632

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 33.3729
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 851
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= 7
involuntary context switches= 26

runsolver used 0.025996 second user time and 0.072988 second system time

The end

Launcher Data (download as text)

Begin job on node57 on Fri Apr 27 19:39:57 UTC 2007

IDJOB= 428141
IDBENCH= 20340
IDSOLVER= 198
FILE ID= node57/428141-1177702797

PBS_JOBID= 4698695

Free space on /tmp= 66508 MiB

SOLVER NAME= minimarch 2007-04-26 (fixed)
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1665/unif2p-p0.8-v1665-c5178-S1939769766-11-SAT.cnf
COMMAND LINE= /tmp/evaluation/428141-1177702797/minimarch_fixed /tmp/evaluation/428141-1177702797/instance-428141-1177702797.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node57/watcher-428141-1177702797 -o ROOT/results/node57/solver-428141-1177702797 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/428141-1177702797/minimarch_fixed /tmp/evaluation/428141-1177702797/instance-428141-1177702797.cnf

META MD5SUM SOLVER= 08d902191c06ef4f82d57c2f2b6a82c2
MD5SUM BENCH=  6a3b3e57d22696582c0456812681e53c

RANDOM SEED= 842557702

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node57.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		: 3000.239
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		: 3000.239
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:       1697000 kB
Buffers:         37968 kB
Cached:         263328 kB
SwapCached:       4364 kB
Active:         165340 kB
Inactive:       146440 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1697000 kB
SwapTotal:     4192956 kB
SwapFree:      4183136 kB
Dirty:            2936 kB
Writeback:           0 kB
Mapped:          15816 kB
Slab:            33284 kB
Committed_AS:  2677360 kB
PageTables:       1408 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= 66508 MiB

End job on node57 on Fri Apr 27 19:40:31 UTC 2007