Trace number 310949

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 79.088 79.1326

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S1230630010-06-UNSAT.cnf
MD5SUMf1d2cd08ac7f8096a38662a7d7275db8
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark17.0164
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, 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 |    1104     3752    11204 |     1250        0    nan |  0.000 % |
0.00/0.02	|       100 |    1104     3752    11204 |     1375      100     14 |  0.000 % |
0.00/0.03	|       250 |    1104     3752    11204 |     1513      250     16 |  0.001 % |
0.00/0.05	|       476 |    1104     3752    11204 |     1664      476     17 |  0.000 % |
0.00/0.07	|       813 |    1104     3752    11204 |     1831      813     17 |  0.000 % |
0.10/0.11	|      1319 |    1104     3752    11204 |     2014     1319     18 |  0.000 % |
0.10/0.17	|      2078 |    1104     3752    11204 |     2215     2078     18 |  0.000 % |
0.20/0.26	|      3218 |    1104     3752    11204 |     2437     2058     17 |  0.000 % |
0.40/0.41	|      4926 |    1104     3752    11204 |     2680     2490     17 |  0.000 % |
0.61/0.64	|      7488 |    1104     3752    11204 |     2949     2307     15 |  0.001 % |
0.91/0.99	|     11333 |    1104     3752    11204 |     3243     1578     16 |  0.001 % |
1.43/1.53	|     17099 |    1104     3752    11204 |     3568     2368     16 |  0.000 % |
2.35/2.36	|     25748 |    1104     3752    11204 |     3925     3661     19 |  0.000 % |
3.58/3.66	|     38723 |    1104     3752    11204 |     4317     2610     16 |  0.000 % |
5.63/5.72	|     58186 |    1104     3752    11204 |     4749     4357     18 |  0.000 % |
8.70/8.79	|     87378 |    1104     3752    11204 |     5224     4621     15 |  0.000 % |
13.72/13.73	|    131167 |    1104     3752    11204 |     5746     3084     17 |  0.001 % |
21.29/21.35	|    196851 |    1104     3752    11204 |     6321     4605     18 |  0.001 % |
33.06/33.18	|    295377 |    1104     3752    11204 |     6953     3637     20 |  0.000 % |
51.49/51.53	|    443167 |    1103     3747    11188 |     7648     5080     17 |  0.078 % |
79.03/79.13	===============================================================================
79.03/79.13	lookaheads            : 702775
79.03/79.13	variable balance      : 0.00
79.03/79.13	restarts              : 20
79.03/79.13	conflicts             : 657697         (8317 /sec)
79.03/79.13	decisions             : 702775         (1.72 % random) (8887 /sec)
79.03/79.13	decision = positive   : 338122
79.03/79.13	decision = negative   : 364653
79.03/79.13	propagations          : 109642733      (1386549 /sec)
79.03/79.13	conflict literals     : 12475615       (37.38 % deleted)
79.03/79.13	Memory used           : 3.98 MB
79.03/79.13	CPU time              : 79.076 s
79.03/79.13	
79.03/79.13	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/node67/watcher-310949-1172563200 -o ROOT/results/node67/solver-310949-1172563200 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310949-1172563200/minimarch /tmp/evaluation/310949-1172563200/instance-310949-1172563200.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: 0.99 0.98 0.99 3/64 18333
/proc/meminfo: memFree=1871040/2055920 swapFree=4183972/4192956
[pid=18333] ppid=18331 vsize=2000 CPUtime=0
/proc/18333/stat : 18333 (minimarch) R 18331 18333 17368 0 -1 4194304 179 0 0 0 0 0 0 0 18 0 1 0 276277676 2048000 163 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134691888 0 0 4096 3 0 0 0 17 1 0 0
/proc/18333/statm: 500 163 51 132 0 365 0

[startup+0.106735 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 18333
/proc/meminfo: memFree=1871040/2055920 swapFree=4183972/4192956
[pid=18333] ppid=18331 vsize=2228 CPUtime=0.1
/proc/18333/stat : 18333 (minimarch) R 18331 18333 17368 0 -1 4194304 237 0 0 0 10 0 0 0 18 0 1 0 276277676 2281472 221 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551347 0 0 4096 3 0 0 0 17 1 0 0
/proc/18333/statm: 557 221 66 132 0 422 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2228

[startup+0.514776 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 18333
/proc/meminfo: memFree=1871040/2055920 swapFree=4183972/4192956
[pid=18333] ppid=18331 vsize=2360 CPUtime=0.51
/proc/18333/stat : 18333 (minimarch) R 18331 18333 17368 0 -1 4194304 276 0 0 0 51 0 0 0 21 0 1 0 276277676 2416640 260 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551269 0 0 4096 3 0 0 0 17 1 0 0
/proc/18333/statm: 590 260 66 132 0 455 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2360

[startup+1.33486 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 18334
/proc/meminfo: memFree=1870136/2055920 swapFree=4183972/4192956
[pid=18333] ppid=18331 vsize=2492 CPUtime=1.33
/proc/18333/stat : 18333 (minimarch) R 18331 18333 17368 0 -1 4194304 310 0 0 0 133 0 0 0 25 0 1 0 276277676 2551808 294 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551219 0 0 4096 3 0 0 0 17 1 0 0
/proc/18333/statm: 623 294 66 132 0 488 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 2492

[startup+2.97103 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 18334
/proc/meminfo: memFree=1869880/2055920 swapFree=4183972/4192956
[pid=18333] ppid=18331 vsize=2624 CPUtime=2.96
/proc/18333/stat : 18333 (minimarch) R 18331 18333 17368 0 -1 4194304 345 0 0 0 296 0 0 0 25 0 1 0 276277676 2686976 329 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134552963 0 0 4096 3 0 0 0 17 1 0 0
/proc/18333/statm: 656 329 66 132 0 521 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 2624

[startup+6.25337 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 18334
/proc/meminfo: memFree=1869496/2055920 swapFree=4183972/4192956
[pid=18333] ppid=18331 vsize=2888 CPUtime=6.24
/proc/18333/stat : 18333 (minimarch) R 18331 18333 17368 0 -1 4194304 399 0 0 0 624 0 0 0 25 0 1 0 276277676 2957312 383 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551284 0 0 4096 3 0 0 0 17 1 0 0
/proc/18333/statm: 722 383 66 132 0 587 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 2888

[startup+12.706 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 18334
/proc/meminfo: memFree=1869240/2055920 swapFree=4183972/4192956
[pid=18333] ppid=18331 vsize=3020 CPUtime=12.69
/proc/18333/stat : 18333 (minimarch) R 18331 18333 17368 0 -1 4194304 455 0 0 0 1269 0 0 0 25 0 1 0 276277676 3092480 439 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551660 0 0 4096 3 0 0 0 17 1 0 0
/proc/18333/statm: 755 439 66 132 0 620 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3020

[startup+25.5064 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 18334
/proc/meminfo: memFree=1868856/2055920 swapFree=4183972/4192956
[pid=18333] ppid=18331 vsize=3416 CPUtime=25.49
/proc/18333/stat : 18333 (minimarch) R 18331 18333 17368 0 -1 4194304 539 0 0 0 2549 0 0 0 25 0 1 0 276277676 3497984 523 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551331 0 0 4096 3 0 0 0 17 1 0 0
/proc/18333/statm: 854 523 66 132 0 719 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 3416

[startup+51.111 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 18334
/proc/meminfo: memFree=1868408/2055920 swapFree=4183972/4192956
[pid=18333] ppid=18331 vsize=3812 CPUtime=51.08
/proc/18333/stat : 18333 (minimarch) R 18331 18333 17368 0 -1 4194304 638 0 0 0 5108 0 0 0 25 0 1 0 276277676 3903488 622 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551533 0 0 4096 3 0 0 0 17 1 0 0
/proc/18333/statm: 953 622 66 132 0 818 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 3812

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

[startup+52.4412 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 18334
/proc/meminfo: memFree=1868408/2055920 swapFree=4183972/4192956
[pid=18333] ppid=18331 vsize=3812 CPUtime=52.41
/proc/18333/stat : 18333 (minimarch) R 18331 18333 17368 0 -1 4194304 639 0 0 0 5241 0 0 0 25 0 1 0 276277676 3903488 623 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551219 0 0 4096 3 0 0 0 17 1 0 0
/proc/18333/statm: 953 623 66 132 0 818 0
Current children cumulated CPU time (s) 52.41
Current children cumulated vsize (KiB) 3812

[startup+65.5575 s]
/proc/loadavg: 0.99 0.98 0.99 2/71 18398
/proc/meminfo: memFree=1867072/2055920 swapFree=4183972/4192956
[pid=18333] ppid=18331 vsize=3944 CPUtime=65.51
/proc/18333/stat : 18333 (minimarch) R 18331 18333 17368 0 -1 4194304 670 0 0 0 6551 0 0 0 25 0 1 0 276277676 4038656 654 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551368 0 0 4096 3 0 0 0 17 1 0 0
/proc/18333/statm: 986 654 66 132 0 851 0
Current children cumulated CPU time (s) 65.51
Current children cumulated vsize (KiB) 3944

[startup+72.1082 s]
/proc/loadavg: 0.99 0.98 0.99 2/71 18406
/proc/meminfo: memFree=1867064/2055920 swapFree=4183972/4192956
[pid=18333] ppid=18331 vsize=3944 CPUtime=72.07
/proc/18333/stat : 18333 (minimarch) R 18331 18333 17368 0 -1 4194304 688 0 0 0 7206 1 0 0 25 0 1 0 276277676 4038656 672 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134553257 0 0 4096 3 0 0 0 17 1 0 0
/proc/18333/statm: 986 672 66 132 0 851 0
Current children cumulated CPU time (s) 72.07
Current children cumulated vsize (KiB) 3944

[startup+75.3906 s]
/proc/loadavg: 0.99 0.98 0.99 2/71 18408
/proc/meminfo: memFree=1867000/2055920 swapFree=4183972/4192956
[pid=18333] ppid=18331 vsize=3944 CPUtime=75.34
/proc/18333/stat : 18333 (minimarch) R 18331 18333 17368 0 -1 4194304 688 0 0 0 7533 1 0 0 25 0 1 0 276277676 4038656 672 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551660 0 0 4096 3 0 0 0 17 1 0 0
/proc/18333/statm: 986 672 66 132 0 851 0
Current children cumulated CPU time (s) 75.34
Current children cumulated vsize (KiB) 3944

[startup+77.0307 s]
/proc/loadavg: 0.99 0.98 0.99 2/71 18416
/proc/meminfo: memFree=1867000/2055920 swapFree=4183972/4192956
[pid=18333] ppid=18331 vsize=3944 CPUtime=76.98
/proc/18333/stat : 18333 (minimarch) R 18331 18333 17368 0 -1 4194304 688 0 0 0 7697 1 0 0 25 0 1 0 276277676 4038656 672 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134557597 0 0 4096 3 0 0 0 17 1 0 0
/proc/18333/statm: 986 672 66 132 0 851 0
Current children cumulated CPU time (s) 76.98
Current children cumulated vsize (KiB) 3944

[startup+77.8508 s]
/proc/loadavg: 0.99 0.98 0.99 2/71 18416
/proc/meminfo: memFree=1867000/2055920 swapFree=4183972/4192956
[pid=18333] ppid=18331 vsize=4076 CPUtime=77.8
/proc/18333/stat : 18333 (minimarch) R 18331 18333 17368 0 -1 4194304 689 0 0 0 7779 1 0 0 25 0 1 0 276277676 4173824 673 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551713 0 0 4096 3 0 0 0 17 1 0 0
/proc/18333/statm: 1019 673 66 132 0 884 0
Current children cumulated CPU time (s) 77.8
Current children cumulated vsize (KiB) 4076

[startup+78.6669 s]
/proc/loadavg: 0.99 0.98 0.99 2/71 18416
/proc/meminfo: memFree=1867000/2055920 swapFree=4183972/4192956
[pid=18333] ppid=18331 vsize=4076 CPUtime=78.62
/proc/18333/stat : 18333 (minimarch) R 18331 18333 17368 0 -1 4194304 689 0 0 0 7861 1 0 0 25 0 1 0 276277676 4173824 673 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134558081 0 0 4096 3 0 0 0 17 1 0 0
/proc/18333/statm: 1019 673 66 132 0 884 0
Current children cumulated CPU time (s) 78.62
Current children cumulated vsize (KiB) 4076

[startup+79.0799 s]
/proc/loadavg: 0.99 0.98 0.99 2/71 18418
/proc/meminfo: memFree=1867000/2055920 swapFree=4183972/4192956
[pid=18333] ppid=18331 vsize=4076 CPUtime=79.03
/proc/18333/stat : 18333 (minimarch) R 18331 18333 17368 0 -1 4194304 689 0 0 0 7902 1 0 0 25 0 1 0 276277676 4173824 673 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551352 0 0 4096 3 0 0 0 17 1 0 0
/proc/18333/statm: 1019 673 66 132 0 884 0
Current children cumulated CPU time (s) 79.03
Current children cumulated vsize (KiB) 4076

Child status: 20
Real time (s): 79.1326
CPU time (s): 79.088
CPU user time (s): 79.077
CPU system time (s): 0.010998
CPU usage (%): 99.9436
Max. virtual memory (cumulated for all children) (KiB): 4076

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 79.077
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= 695
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= 188

runsolver used 0.06199 second user time and 0.173973 second system time

The end

Launcher Data (download as text)

Begin job on node67 on Tue Feb 27 08:00:01 UTC 2007

IDJOB= 310949
IDBENCH= 20300
IDSOLVER= 110
FILE ID= node67/310949-1172563200

PBS_JOBID= 3971861

Free space on /tmp= 66557 MiB

SOLVER NAME= minimarch 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S1230630010-06-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/310949-1172563200/minimarch /tmp/evaluation/310949-1172563200/instance-310949-1172563200.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node67/watcher-310949-1172563200 -o ROOT/results/node67/solver-310949-1172563200 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310949-1172563200/minimarch /tmp/evaluation/310949-1172563200/instance-310949-1172563200.cnf            

META MD5SUM SOLVER= cd0143c15836d32fe9acb8d523a59b67
MD5SUM BENCH=  f1d2cd08ac7f8096a38662a7d7275db8

RANDOM SEED= 923356964

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node67.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		: 3000.236
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		: 3000.236
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:       1871384 kB
Buffers:         20068 kB
Cached:         117536 kB
SwapCached:       3224 kB
Active:          76428 kB
Inactive:        71120 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1871384 kB
SwapTotal:     4192956 kB
SwapFree:      4183972 kB
Dirty:            2312 kB
Writeback:           0 kB
Mapped:          15400 kB
Slab:            22900 kB
Committed_AS:   761548 kB
PageTables:       1452 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= 66557 MiB

End job on node67 on Tue Feb 27 08:01:20 UTC 2007