Trace number 428149

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)UNSAT 38.6981 38.7084

General information on the benchmark

Nameindustrial/anbulagan/
medium-unsat/dated-10-15-u.cnf
MD5SUM3b92b02eda280b3d74433fa589c2d772
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark18.4502
Satisfiable
(Un)Satisfiability was proved
Number of variables193016
Number of clauses885873
Sum of the clauses size2034196
Maximum clause length10
Minimum clause length1
Number of clauses of size 116194
Number of clauses of size 2700175
Number of clauses of size 3133124
Number of clauses of size 44040
Number of clauses of size 516160
Number of clauses of size over 516180

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:  193016                                               |
0.00/0.00	|  Number of clauses:    885873                                               |
2.40/2.45	|  Parsing time:         2.35         s                                       |
6.29/6.39	============================[ Search Statistics ]==============================
6.29/6.39	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
6.29/6.39	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
6.29/6.39	===============================================================================
6.29/6.39	|         0 |   44900   291520   750190 |    97173        0    nan |  0.000 % |
6.60/6.62	|       101 |   44900   291520   750190 |   106890       99     18 | 50.341 % |
7.09/7.14	|       251 |   44835   291520   750190 |   117579      244     42 | 50.891 % |
7.99/8.09	|       476 |   41549   268546   696844 |   129337      447     41 | 51.903 % |
9.29/9.37	|       815 |   41515   268546   696844 |   142271      782     47 | 52.227 % |
10.49/10.55	|      1321 |   40585   262045   681379 |   156498     1283     62 | 53.097 % |
12.00/12.09	|      2080 |   40577   262045   681379 |   172148     2040     68 | 53.165 % |
13.89/13.91	|      3219 |   38075   243346   635236 |   189363     3120     61 | 53.706 % |
16.09/16.12	|      4928 |   33127   203547   534752 |   208299     4705     52 | 57.195 % |
21.59/21.66	|      7491 |   31020   186969   493284 |   229129     7235     54 | 57.393 % |
30.69/30.71	|     11335 |   30813   185405   489640 |   252042    11073     49 | 57.473 % |
38.58/38.69	===============================================================================
38.58/38.69	lookaheads            : 10930
38.58/38.69	variable balance      : 0.14
38.58/38.69	restarts              : 11
38.58/38.69	conflicts             : 14993          (389 /sec)
38.58/38.69	decisions             : 25670          (0.60 % random) (666 /sec)
38.58/38.69	decision = positive   : 6300
38.58/38.69	decision = negative   : 19370
38.58/38.69	propagations          : 30785743       (798818 /sec)
38.58/38.69	conflict literals     : 637148         (50.52 % deleted)
38.58/38.69	Memory used           : 83.26 MB
38.58/38.69	CPU time              : 38.5391 s
38.58/38.69	
38.58/38.69	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node27/watcher-428149-1177703057 -o ROOT/results/node27/solver-428149-1177703057 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/428149-1177703057/minimarch_fixed /tmp/evaluation/428149-1177703057/instance-428149-1177703057.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: 0.99 0.97 0.99 3/65 31229
/proc/meminfo: memFree=1441816/2055920 swapFree=4182916/4192956
[pid=31229] ppid=31227 vsize=2340 CPUtime=0
/proc/31229/stat : 31229 (minimarch_fixed) R 31227 31229 30357 0 -1 4194304 477 0 0 0 0 0 0 0 18 0 1 0 183001743 2396160 462 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134553798 0 0 4096 3 0 0 0 17 1 0 0
/proc/31229/statm: 585 463 51 132 0 450 0

[startup+0.0133481 s]
/proc/loadavg: 0.99 0.97 0.99 3/65 31229
/proc/meminfo: memFree=1441816/2055920 swapFree=4182916/4192956
[pid=31229] ppid=31227 vsize=4292 CPUtime=0
/proc/31229/stat : 31229 (minimarch_fixed) R 31227 31229 30357 0 -1 4194304 901 0 0 0 0 0 0 0 18 0 1 0 183001743 4395008 887 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134526723 0 0 4096 3 0 0 0 17 1 0 0
/proc/31229/statm: 1073 887 51 132 0 938 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 4292

[startup+0.101356 s]
/proc/loadavg: 0.99 0.97 0.99 3/65 31229
/proc/meminfo: memFree=1441816/2055920 swapFree=4182916/4192956
[pid=31229] ppid=31227 vsize=12884 CPUtime=0.09
/proc/31229/stat : 31229 (minimarch_fixed) R 31227 31229 30357 0 -1 4194304 2874 0 0 0 8 1 0 0 18 0 1 0 183001743 13193216 2859 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134688823 0 0 4096 3 0 0 0 17 1 0 0
/proc/31229/statm: 3221 2859 51 132 0 3086 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12884

[startup+0.301375 s]
/proc/loadavg: 0.99 0.97 0.99 3/65 31229
/proc/meminfo: memFree=1441816/2055920 swapFree=4182916/4192956
[pid=31229] ppid=31227 vsize=37832 CPUtime=0.29
/proc/31229/stat : 31229 (minimarch_fixed) R 31227 31229 30357 0 -1 4194304 8218 0 0 0 25 4 0 0 19 0 1 0 183001743 38739968 8203 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134688823 0 0 4096 3 0 0 0 17 1 0 0
/proc/31229/statm: 9458 8203 51 132 0 9323 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 37832

[startup+0.701413 s]
/proc/loadavg: 0.99 0.97 0.99 3/65 31229
/proc/meminfo: memFree=1441816/2055920 swapFree=4182916/4192956
[pid=31229] ppid=31227 vsize=55920 CPUtime=0.69
/proc/31229/stat : 31229 (minimarch_fixed) R 31227 31229 30357 0 -1 4194304 12603 0 0 0 62 7 0 0 22 0 1 0 183001743 57262080 12588 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134688823 0 0 4096 3 0 0 0 17 1 0 0
/proc/31229/statm: 13980 12589 51 132 0 13845 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 55920

[startup+1.50149 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 31230
/proc/meminfo: memFree=1375184/2055920 swapFree=4182916/4192956
[pid=31229] ppid=31227 vsize=74496 CPUtime=1.5
/proc/31229/stat : 31229 (minimarch_fixed) R 31227 31229 30357 0 -1 4194304 17641 0 0 0 140 10 0 0 25 0 1 0 183001743 76283904 17626 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134523094 0 0 4096 3 0 0 0 17 1 0 0
/proc/31229/statm: 18624 17626 51 132 0 18489 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 74496

[startup+3.10164 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 31230
/proc/meminfo: memFree=1371216/2055920 swapFree=4182916/4192956
[pid=31229] ppid=31227 vsize=78092 CPUtime=3.09
/proc/31229/stat : 31229 (minimarch_fixed) R 31227 31229 30357 0 -1 4194304 18240 0 0 0 299 10 0 0 25 0 1 0 183001743 79966208 18225 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134688823 0 0 4096 3 0 0 0 17 1 0 0
/proc/31229/statm: 19523 18225 62 132 0 19388 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 78092

[startup+6.30195 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 31230
/proc/meminfo: memFree=1349840/2055920 swapFree=4182916/4192956
[pid=31229] ppid=31227 vsize=88236 CPUtime=6.29
/proc/31229/stat : 31229 (minimarch_fixed) R 31227 31229 30357 0 -1 4194304 24439 0 0 0 616 13 0 0 25 0 1 0 183001743 90353664 20999 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134549347 0 0 4096 3 0 0 0 17 1 0 0
/proc/31229/statm: 22059 20999 64 132 0 21924 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 88236

[startup+12.7016 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 31230
/proc/meminfo: memFree=1360728/2055920 swapFree=4182916/4192956
[pid=31229] ppid=31227 vsize=85256 CPUtime=12.69
/proc/31229/stat : 31229 (minimarch_fixed) R 31227 31229 30357 0 -1 4194304 24862 0 0 0 1255 14 0 0 25 0 1 0 183001743 87302144 20291 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551227 0 0 4096 3 0 0 0 17 1 0 0
/proc/31229/statm: 21314 20291 67 132 0 21179 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 85256

[startup+25.5018 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 31230
/proc/meminfo: memFree=1360792/2055920 swapFree=4182916/4192956
[pid=31229] ppid=31227 vsize=85256 CPUtime=25.49
/proc/31229/stat : 31229 (minimarch_fixed) R 31227 31229 30357 0 -1 4194304 24862 0 0 0 2535 14 0 0 25 0 1 0 183001743 87302144 20291 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551184 0 0 4096 3 0 0 0 17 1 0 0
/proc/31229/statm: 21314 20291 67 132 0 21179 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 85256

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

[startup+31.9044 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 31230
/proc/meminfo: memFree=1360792/2055920 swapFree=4182916/4192956
[pid=31229] ppid=31227 vsize=85256 CPUtime=31.89
/proc/31229/stat : 31229 (minimarch_fixed) R 31227 31229 30357 0 -1 4194304 24862 0 0 0 3175 14 0 0 25 0 1 0 183001743 87302144 20291 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551184 0 0 4096 3 0 0 0 17 1 0 0
/proc/31229/statm: 21314 20291 67 132 0 21179 0
Current children cumulated CPU time (s) 31.89
Current children cumulated vsize (KiB) 85256

[startup+35.1017 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 31230
/proc/meminfo: memFree=1360792/2055920 swapFree=4182916/4192956
[pid=31229] ppid=31227 vsize=85256 CPUtime=35.09
/proc/31229/stat : 31229 (minimarch_fixed) R 31227 31229 30357 0 -1 4194304 24862 0 0 0 3495 14 0 0 25 0 1 0 183001743 87302144 20291 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551165 0 0 4096 3 0 0 0 17 1 0 0
/proc/31229/statm: 21314 20291 67 132 0 21179 0
Current children cumulated CPU time (s) 35.09
Current children cumulated vsize (KiB) 85256

[startup+36.7019 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 31230
/proc/meminfo: memFree=1360792/2055920 swapFree=4182916/4192956
[pid=31229] ppid=31227 vsize=85256 CPUtime=36.68
/proc/31229/stat : 31229 (minimarch_fixed) R 31227 31229 30357 0 -1 4194304 24862 0 0 0 3654 14 0 0 25 0 1 0 183001743 87302144 20291 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551227 0 0 4096 3 0 0 0 17 1 0 0
/proc/31229/statm: 21314 20291 67 132 0 21179 0
Current children cumulated CPU time (s) 36.68
Current children cumulated vsize (KiB) 85256

[startup+37.5019 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 31230
/proc/meminfo: memFree=1360792/2055920 swapFree=4182916/4192956
[pid=31229] ppid=31227 vsize=85256 CPUtime=37.48
/proc/31229/stat : 31229 (minimarch_fixed) R 31227 31229 30357 0 -1 4194304 24862 0 0 0 3734 14 0 0 25 0 1 0 183001743 87302144 20291 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551227 0 0 4096 3 0 0 0 17 1 0 0
/proc/31229/statm: 21314 20291 67 132 0 21179 0
Current children cumulated CPU time (s) 37.48
Current children cumulated vsize (KiB) 85256

[startup+38.302 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 31230
/proc/meminfo: memFree=1360792/2055920 swapFree=4182916/4192956
[pid=31229] ppid=31227 vsize=85256 CPUtime=38.28
/proc/31229/stat : 31229 (minimarch_fixed) R 31227 31229 30357 0 -1 4194304 24862 0 0 0 3814 14 0 0 25 0 1 0 183001743 87302144 20291 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134556281 0 0 4096 3 0 0 0 17 1 0 0
/proc/31229/statm: 21314 20291 67 132 0 21179 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 85256

[startup+38.7011 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 31230
/proc/meminfo: memFree=1360792/2055920 swapFree=4182916/4192956
[pid=31229] ppid=31227 vsize=0 CPUtime=38.68
/proc/31229/stat : 31229 (minimarch_fixed) R 31227 31229 30357 0 -1 4194308 24869 0 0 0 3853 15 0 0 25 0 1 0 183001743 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 3 0 0 0 17 1 0 0
/proc/31229/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 38.68
Current children cumulated vsize (KiB) 0

Child status: 20
Real time (s): 38.7084
CPU time (s): 38.6981
CPU user time (s): 38.5391
CPU system time (s): 0.158975
CPU usage (%): 99.9734
Max. virtual memory (cumulated for all children) (KiB): 100300

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 38.5391
system time used= 0.158975
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 24869
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= 57

runsolver used 0.042993 second user time and 0.073988 second system time

The end

Launcher Data (download as text)

Begin job on node27 on Fri Apr 27 19:44:18 UTC 2007

IDJOB= 428149
IDBENCH= 20344
IDSOLVER= 198
FILE ID= node27/428149-1177703057

PBS_JOBID= 4698694

Free space on /tmp= 66425 MiB

SOLVER NAME= minimarch 2007-04-26 (fixed)
BENCH NAME= HOME/pub/bench/SAT07/industrial/anbulagan/medium-unsat/dated-10-15-u.cnf
COMMAND LINE= /tmp/evaluation/428149-1177703057/minimarch_fixed /tmp/evaluation/428149-1177703057/instance-428149-1177703057.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node27/watcher-428149-1177703057 -o ROOT/results/node27/solver-428149-1177703057 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/428149-1177703057/minimarch_fixed /tmp/evaluation/428149-1177703057/instance-428149-1177703057.cnf

META MD5SUM SOLVER= 08d902191c06ef4f82d57c2f2b6a82c2
MD5SUM BENCH=  3b92b02eda280b3d74433fa589c2d772

RANDOM SEED= 54105189

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node27.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		: 3000.213
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	: 5931.00
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		: 3000.213
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:       1442288 kB
Buffers:         49364 kB
Cached:         487980 kB
SwapCached:       4616 kB
Active:         262572 kB
Inactive:       285412 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1442288 kB
SwapTotal:     4192956 kB
SwapFree:      4182916 kB
Dirty:           18540 kB
Writeback:           0 kB
Mapped:          15956 kB
Slab:            51700 kB
Committed_AS:  2212184 kB
PageTables:       1412 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= 66425 MiB

End job on node27 on Fri Apr 27 19:44:57 UTC 2007