Trace number 310457

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 2007-02-08UNSAT 46.3719 46.4276

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S779175761-20-UNSAT.cnf
MD5SUMe4a16dbebaf749785d32ea7331a934fc
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark4.09138
Satisfiable
(Un)Satisfiability was proved
Number of variables630
Number of clauses2280
Sum of the clauses size6612
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2228
Number of clauses of size 32052
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, 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:  630                                                  |
0.00/0.00	|  Number of clauses:    2280                                                 |
0.00/0.00	|  Parsing time:         0.00         s                                       |
0.00/0.01	============================[ Search Statistics ]==============================
0.00/0.01	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.01	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.01	===============================================================================
0.00/0.01	|         0 |     585     2230     6672 |      743        0    nan |  0.000 % |
0.00/0.01	|       101 |     585     2230     6672 |      817      101     15 |  0.001 % |
0.00/0.02	|       251 |     585     2230     6672 |      899      251     15 |  0.002 % |
0.00/0.03	|       476 |     585     2230     6672 |      989      476     15 |  0.000 % |
0.00/0.04	|       813 |     585     2230     6672 |     1088      813     16 |  0.001 % |
0.00/0.07	|      1319 |     585     2230     6672 |     1197      746     14 |  0.000 % |
0.10/0.11	|      2078 |     585     2230     6672 |     1316      864     15 |  0.004 % |
0.10/0.17	|      3217 |     585     2230     6672 |     1448     1316     15 |  0.001 % |
0.20/0.26	|      4925 |     585     2230     6672 |     1593      797     14 |  0.001 % |
0.30/0.39	|      7487 |     585     2230     6672 |     1752      900     13 |  0.000 % |
0.51/0.61	|     11331 |     585     2230     6672 |     1928     1160     14 |  0.000 % |
0.92/0.95	|     17097 |     585     2230     6672 |     2120     1990     14 |  0.001 % |
1.43/1.49	|     25747 |     585     2230     6672 |     2332     1944     14 |  0.000 % |
2.25/2.31	|     38721 |     585     2230     6672 |     2566     1805     15 |  0.002 % |
3.48/3.58	|     58183 |     585     2230     6672 |     2822     1619     13 |  0.000 % |
5.42/5.50	|     87376 |     583     2215     6630 |     3105     1909     16 |  0.318 % |
8.39/8.51	|    131165 |     583     2215     6630 |     3415     3066     13 |  0.320 % |
13.19/13.25	|    196850 |     583     2215     6630 |     3757     2974     13 |  0.318 % |
20.46/20.59	|    295376 |     583     2215     6630 |     4132     2420     16 |  0.318 % |
32.04/32.17	|    443165 |     583     2215     6630 |     4546     3700     15 |  0.318 % |
46.27/46.42	===============================================================================
46.27/46.42	lookaheads            : 662773
46.27/46.42	variable balance      : 0.00
46.27/46.42	restarts              : 20
46.27/46.42	conflicts             : 622469         (13424 /sec)
46.27/46.42	decisions             : 662773         (1.77 % random) (14293 /sec)
46.27/46.42	decision = positive   : 334909
46.27/46.42	decision = negative   : 327864
46.27/46.42	propagations          : 60405476       (1302714 /sec)
46.27/46.42	conflict literals     : 9949060        (35.90 % deleted)
46.27/46.42	Memory used           : 3.12 MB
46.27/46.42	CPU time              : 46.3689 s
46.27/46.42	
46.27/46.42	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node10/watcher-310457-1172559712 -o ROOT/results/node10/solver-310457-1172559712 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310457-1172559712/minimarch /tmp/evaluation/310457-1172559712/instance-310457-1172559712.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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 1.00 1.00 3/83 26560
/proc/meminfo: memFree=1589104/2055920 swapFree=4192812/4192956
[pid=26560] ppid=26558 vsize=1868 CPUtime=0
/proc/26560/stat : 26560 (minimarch) R 26558 26560 25902 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 275926176 1912832 127 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134523396 0 0 4096 3 0 0 0 17 1 0 0
/proc/26560/statm: 467 127 51 132 0 332 0

[startup+0.10759 s]
/proc/loadavg: 1.00 1.00 1.00 3/83 26560
/proc/meminfo: memFree=1589104/2055920 swapFree=4192812/4192956
[pid=26560] ppid=26558 vsize=2000 CPUtime=0.1
/proc/26560/stat : 26560 (minimarch) R 26558 26560 25902 0 -1 4194304 178 0 0 0 10 0 0 0 18 0 1 0 275926176 2048000 162 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551188 0 0 4096 3 0 0 0 17 1 0 0
/proc/26560/statm: 500 162 66 132 0 365 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2000

[startup+0.515644 s]
/proc/loadavg: 1.00 1.00 1.00 3/83 26560
/proc/meminfo: memFree=1589104/2055920 swapFree=4192812/4192956
[pid=26560] ppid=26558 vsize=2132 CPUtime=0.51
/proc/26560/stat : 26560 (minimarch) R 26558 26560 25902 0 -1 4194304 201 0 0 0 51 0 0 0 22 0 1 0 275926176 2183168 185 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551328 0 0 4096 3 0 0 0 17 1 0 0
/proc/26560/statm: 533 185 66 132 0 398 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2132

[startup+1.33676 s]
/proc/loadavg: 1.00 1.00 1.00 2/84 26565
/proc/meminfo: memFree=1588592/2055920 swapFree=4192812/4192956
[pid=26560] ppid=26558 vsize=2132 CPUtime=1.33
/proc/26560/stat : 26560 (minimarch) R 26558 26560 25902 0 -1 4194304 228 0 0 0 133 0 0 0 25 0 1 0 275926176 2183168 212 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134557981 0 0 4096 3 0 0 0 17 1 0 0
/proc/26560/statm: 533 212 66 132 0 398 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 2132

[startup+2.97298 s]
/proc/loadavg: 1.00 1.00 1.00 2/84 26565
/proc/meminfo: memFree=1588336/2055920 swapFree=4192812/4192956
[pid=26560] ppid=26558 vsize=2264 CPUtime=2.96
/proc/26560/stat : 26560 (minimarch) R 26558 26560 25902 0 -1 4194304 254 0 0 0 296 0 0 0 25 0 1 0 275926176 2318336 238 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551155 0 0 4096 3 0 0 0 17 1 0 0
/proc/26560/statm: 566 238 66 132 0 431 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 2264

[startup+6.25242 s]
/proc/loadavg: 1.00 1.00 1.00 2/84 26567
/proc/meminfo: memFree=1588080/2055920 swapFree=4192812/4192956
[pid=26560] ppid=26558 vsize=2396 CPUtime=6.24
/proc/26560/stat : 26560 (minimarch) R 26558 26560 25902 0 -1 4194304 289 0 0 0 624 0 0 0 25 0 1 0 275926176 2453504 273 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551359 0 0 4096 3 0 0 0 17 1 0 0
/proc/26560/statm: 599 273 66 132 0 464 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 2396

[startup+12.7143 s]
/proc/loadavg: 1.00 1.00 1.00 2/84 26599
/proc/meminfo: memFree=1587888/2055920 swapFree=4192812/4192956
[pid=26560] ppid=26558 vsize=2660 CPUtime=12.68
/proc/26560/stat : 26560 (minimarch) R 26558 26560 25902 0 -1 4194304 333 0 0 0 1268 0 0 0 25 0 1 0 275926176 2723840 317 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551660 0 0 4096 3 0 0 0 17 1 0 0
/proc/26560/statm: 665 317 66 132 0 530 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 2660

[startup+25.53 s]
/proc/loadavg: 1.00 1.00 1.00 2/84 26615
/proc/meminfo: memFree=1587504/2055920 swapFree=4192812/4192956
[pid=26560] ppid=26558 vsize=2924 CPUtime=25.49
/proc/26560/stat : 26560 (minimarch) R 26558 26560 25902 0 -1 4194304 406 0 0 0 2549 0 0 0 25 0 1 0 275926176 2994176 390 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134556502 0 0 4096 3 0 0 0 17 1 0 0
/proc/26560/statm: 731 390 66 132 0 596 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 2924

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

[startup+26.2481 s]
/proc/loadavg: 1.00 1.00 1.00 2/84 26615
/proc/meminfo: memFree=1587504/2055920 swapFree=4192812/4192956
[pid=26560] ppid=26558 vsize=2924 CPUtime=26.2
/proc/26560/stat : 26560 (minimarch) R 26558 26560 25902 0 -1 4194304 409 0 0 0 2620 0 0 0 25 0 1 0 275926176 2994176 393 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551652 0 0 4096 3 0 0 0 17 1 0 0
/proc/26560/statm: 731 393 66 132 0 596 0
Current children cumulated CPU time (s) 26.2
Current children cumulated vsize (KiB) 2924

[startup+39.3589 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 26641
/proc/meminfo: memFree=1588248/2055920 swapFree=4192812/4192956
[pid=26560] ppid=26558 vsize=3056 CPUtime=39.3
/proc/26560/stat : 26560 (minimarch) R 26558 26560 25902 0 -1 4194304 454 0 0 0 3930 0 0 0 25 0 1 0 275926176 3129344 438 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551377 0 0 4096 3 0 0 0 17 1 0 0
/proc/26560/statm: 764 438 66 132 0 629 0
Current children cumulated CPU time (s) 39.3
Current children cumulated vsize (KiB) 3056

[startup+42.6413 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 26641
/proc/meminfo: memFree=1588248/2055920 swapFree=4192812/4192956
[pid=26560] ppid=26558 vsize=3056 CPUtime=42.58
/proc/26560/stat : 26560 (minimarch) R 26558 26560 25902 0 -1 4194304 459 0 0 0 4258 0 0 0 25 0 1 0 275926176 3129344 443 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134557729 0 0 4096 3 0 0 0 17 1 0 0
/proc/26560/statm: 764 443 66 132 0 629 0
Current children cumulated CPU time (s) 42.58
Current children cumulated vsize (KiB) 3056

[startup+44.2816 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 26641
/proc/meminfo: memFree=1588248/2055920 swapFree=4192812/4192956
[pid=26560] ppid=26558 vsize=3188 CPUtime=44.22
/proc/26560/stat : 26560 (minimarch) R 26558 26560 25902 0 -1 4194304 466 0 0 0 4422 0 0 0 25 0 1 0 275926176 3264512 450 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134557539 0 0 4096 3 0 0 0 17 1 0 0
/proc/26560/statm: 797 450 66 132 0 662 0
Current children cumulated CPU time (s) 44.22
Current children cumulated vsize (KiB) 3188

[startup+45.0977 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 26641
/proc/meminfo: memFree=1588248/2055920 swapFree=4192812/4192956
[pid=26560] ppid=26558 vsize=3188 CPUtime=45.04
/proc/26560/stat : 26560 (minimarch) R 26558 26560 25902 0 -1 4194304 466 0 0 0 4504 0 0 0 25 0 1 0 275926176 3264512 450 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551269 0 0 4096 3 0 0 0 17 1 0 0
/proc/26560/statm: 797 450 66 132 0 662 0
Current children cumulated CPU time (s) 45.04
Current children cumulated vsize (KiB) 3188

[startup+45.9178 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 26641
/proc/meminfo: memFree=1588248/2055920 swapFree=4192812/4192956
[pid=26560] ppid=26558 vsize=3188 CPUtime=45.86
/proc/26560/stat : 26560 (minimarch) R 26558 26560 25902 0 -1 4194304 466 0 0 0 4586 0 0 0 25 0 1 0 275926176 3264512 450 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551219 0 0 4096 3 0 0 0 17 1 0 0
/proc/26560/statm: 797 450 66 132 0 662 0
Current children cumulated CPU time (s) 45.86
Current children cumulated vsize (KiB) 3188

[startup+46.3298 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 26641
/proc/meminfo: memFree=1588248/2055920 swapFree=4192812/4192956
[pid=26560] ppid=26558 vsize=3188 CPUtime=46.27
/proc/26560/stat : 26560 (minimarch) R 26558 26560 25902 0 -1 4194304 467 0 0 0 4627 0 0 0 25 0 1 0 275926176 3264512 451 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551219 0 0 4096 3 0 0 0 17 1 0 0
/proc/26560/statm: 797 451 66 132 0 662 0
Current children cumulated CPU time (s) 46.27
Current children cumulated vsize (KiB) 3188

Child status: 20
Real time (s): 46.4276
CPU time (s): 46.3719
CPU user time (s): 46.3699
CPU system time (s): 0.001999
CPU usage (%): 99.8801
Max. virtual memory (cumulated for all children) (KiB): 3188

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 46.37
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 473
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= 213

runsolver used 0.051992 second user time and 0.119981 second system time

The end

Launcher Data (download as text)

Begin job on node10 on Tue Feb 27 07:01:52 UTC 2007

IDJOB= 310457
IDBENCH= 20287
IDSOLVER= 110
FILE ID= node10/310457-1172559712

PBS_JOBID= 3971657

Free space on /tmp= 66558 MiB

SOLVER NAME= minimarch 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S779175761-20-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/310457-1172559712/minimarch /tmp/evaluation/310457-1172559712/instance-310457-1172559712.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node10/watcher-310457-1172559712 -o ROOT/results/node10/solver-310457-1172559712 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310457-1172559712/minimarch /tmp/evaluation/310457-1172559712/instance-310457-1172559712.cnf            

META MD5SUM SOLVER= cd0143c15836d32fe9acb8d523a59b67
MD5SUM BENCH=  e4a16dbebaf749785d32ea7331a934fc

RANDOM SEED= 930006932

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node10.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		: 3000.232
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		: 3000.232
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:       1589640 kB
Buffers:         50056 kB
Cached:         301164 kB
SwapCached:          0 kB
Active:         249232 kB
Inactive:       147176 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1589640 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2340 kB
Writeback:           0 kB
Mapped:          64516 kB
Slab:            55000 kB
Committed_AS:  1367340 kB
PageTables:       2060 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= 66558 MiB

End job on node10 on Tue Feb 27 07:02:38 UTC 2007