Trace number 291557

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
March KS 2007-02-08UNSAT 35.4636 35.4867

General information on the benchmark

Namerandom/OnTreshold/5SAT/v80/
unif-k5-r21.3-v80-c1704-S1317485140-08.UNSAT.shuffled.cnf
MD5SUM09ba83c5bb0d24fb8b0cf9ee4e9590ec
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark35.4636
Satisfiable
(Un)Satisfiability was proved
Number of variables80
Number of clauses1704
Sum of the clauses size8520
Maximum clause length5
Minimum clause length5
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 51704
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.03	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.03	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.00/0.03	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.00/0.03	c main()::
0.00/0.03	c initFormula():: searching for DIMACS p-line....
0.00/0.03	c full lookahead due to high density!
0.00/0.03	c initFormula():: the DIMACS p-line indicates a CNF of 80 variables and 1704 clauses.
0.00/0.03	c parseCNF():: parsing....
0.00/0.03	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.03	c runParser():: parsing was successful, warming up engines...
0.00/0.03	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.03	c preprocessing fase I completed:: there are now 80 free variables and 1704 clauses.
0.00/0.03	c stat :: sign balance is biased by 0.039
0.00/0.03	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.00/0.03	c using k-SAT heuristics (size based diff)
0.00/0.03	c longest clause has size 5
0.00/0.03	c simplify_formula():: removed 0 tautological, 0 satisfied and 17 duplicate clauses
0.00/0.03	c resolvent_look() :: found 11 resolvents
0.00/0.03	c main():: clause / variable ratio: ( 1715 / 80 ) = 21.44
0.00/0.03	c longest clause has size 5
0.00/0.03	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.03	c dynamic_preselect_setsize :: off
0.00/0.03	c suggested doublelook initial :: 0
0.00/0.03	c main():: all systems go!
0.00/0.03	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 0 NC: 158 JD: 13
0.00/0.08	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 1 NC: 1099 JD: 13
0.30/0.37	c |----------------------------------------------------------------|
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c |****************************************************************| 2 NC: 5678 JD: 13
1.73/1.77	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 3 NC: 17762 JD: 13
5.53/5.61	c |----------------------------------------------------------------|
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c |****************************************************************| 4 NC: 37727 JD: 13
11.98/12.07	c |----------------------------------------------------------------|
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c |****************************************************************| 5 NC: 62630 JD: 13
20.07/20.18	c |----------------------------------------------------------------|
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c |****************************************************************| 6 NC: 84125 JD: 13
27.34/27.43	c |----------------------------------------------------------------|
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c |****************************************************************| 7 NC: 97650 JD: 13
32.05/32.12	c |----------------------------------------------------------------|
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c |****************************************************************| 8 NC: 103971 JD: 13
34.30/34.40	c |----------------------------------------------------------------|
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c |****************************************************************| 9 NC: 106232 JD: 13
35.22/35.26	c |----------------------------------------------------------------|
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c |****************************************************************| 10 NC: 106688 JD: 13
35.33/35.44	c |----------------------------------------------------------------|
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c |****************************************************************| 11 NC: 106746 JD: 13
35.43/35.48	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 12 NC: 106750 JD: 13
35.43/35.48	c |----------------------------------------------------------------|
c |
35.43/35.48	c
35.43/35.48	c main():: nodeCount: 106750
35.43/35.48	c main():: dead ends in main: 141
35.43/35.48	c main():: lookAheadCount: 9636476
35.43/35.48	c main():: unitResolveCount: 284222
35.43/35.48	c main():: time=35.460000
35.43/35.48	c main():: necessary_assignments: 1280
35.43/35.48	c main():: bin_sat: 0, bin_unsat 0
35.43/35.48	c main():: doublelook: #: 435263, succes #: 359487
35.43/35.48	c main():: doublelook: overall 4.587 of all possible doublelooks executed
35.43/35.48	c main():: doublelook: succesrate: 82.591, average DL_trigger: 22.263
35.43/35.48	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/node63/watcher-291557-1171743696 -o ROOT/results/node63/solver-291557-1171743696 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/291557-1171743696/march_ks /tmp/evaluation/291557-1171743696/instance-291557-1171743696.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: 0.13 0.39 0.67 2/64 10781
/proc/meminfo: memFree=658840/2055920 swapFree=4183348/4192956
[pid=10781] ppid=10779 vsize=656 CPUtime=0
/proc/10781/stat : 10781 (march_ks) R 10779 10781 10673 0 -1 4194304 80 0 0 0 0 0 0 0 18 0 1 0 194327237 671744 65 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134684029 0 0 4096 0 0 0 0 17 0 0 0
/proc/10781/statm: 164 65 47 123 0 39 0

[startup+0.107371 s]
/proc/loadavg: 0.13 0.39 0.67 2/64 10781
/proc/meminfo: memFree=658840/2055920 swapFree=4183348/4192956
[pid=10781] ppid=10779 vsize=984 CPUtime=0.1
/proc/10781/stat : 10781 (march_ks) R 10779 10781 10673 0 -1 4194304 177 0 0 0 10 0 0 0 18 0 1 0 194327237 1007616 159 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134526947 0 0 4096 0 0 0 0 17 0 0 0
/proc/10781/statm: 246 159 72 123 0 121 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 984

[startup+0.515414 s]
/proc/loadavg: 0.13 0.39 0.67 2/64 10781
/proc/meminfo: memFree=658840/2055920 swapFree=4183348/4192956
[pid=10781] ppid=10779 vsize=984 CPUtime=0.51
/proc/10781/stat : 10781 (march_ks) R 10779 10781 10673 0 -1 4194304 177 0 0 0 51 0 0 0 22 0 1 0 194327237 1007616 159 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134526957 0 0 4096 0 0 0 0 17 0 0 0
/proc/10781/statm: 246 159 72 123 0 121 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 984

[startup+1.3355 s]
/proc/loadavg: 0.20 0.40 0.67 2/65 10782
/proc/meminfo: memFree=658384/2055920 swapFree=4183348/4192956
[pid=10781] ppid=10779 vsize=984 CPUtime=1.33
/proc/10781/stat : 10781 (march_ks) R 10779 10781 10673 0 -1 4194304 177 0 0 0 133 0 0 0 25 0 1 0 194327237 1007616 159 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134585178 0 0 4096 0 0 0 0 17 0 0 0
/proc/10781/statm: 246 159 72 123 0 121 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 984

[startup+2.97168 s]
/proc/loadavg: 0.20 0.40 0.67 2/65 10782
/proc/meminfo: memFree=658256/2055920 swapFree=4183348/4192956
[pid=10781] ppid=10779 vsize=984 CPUtime=2.96
/proc/10781/stat : 10781 (march_ks) R 10779 10781 10673 0 -1 4194304 177 0 0 0 296 0 0 0 25 0 1 0 194327237 1007616 159 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134628861 0 0 4096 0 0 0 0 17 0 0 0
/proc/10781/statm: 246 159 72 123 0 121 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 984

[startup+6.25602 s]
/proc/loadavg: 0.26 0.41 0.67 2/65 10782
/proc/meminfo: memFree=658192/2055920 swapFree=4183348/4192956
[pid=10781] ppid=10779 vsize=984 CPUtime=6.25
/proc/10781/stat : 10781 (march_ks) R 10779 10781 10673 0 -1 4194304 183 0 0 0 625 0 0 0 25 0 1 0 194327237 1007616 165 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134537979 0 0 4096 0 0 0 0 17 0 0 0
/proc/10781/statm: 246 165 72 123 0 121 0
Current children cumulated CPU time (s) 6.25
Current children cumulated vsize (KiB) 984

[startup+12.7067 s]
/proc/loadavg: 0.32 0.42 0.68 2/65 10782
/proc/meminfo: memFree=658064/2055920 swapFree=4183348/4192956
[pid=10781] ppid=10779 vsize=984 CPUtime=12.7
/proc/10781/stat : 10781 (march_ks) R 10779 10781 10673 0 -1 4194304 194 0 0 0 1270 0 0 0 25 0 1 0 194327237 1007616 176 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134548056 0 0 4096 0 0 0 0 17 0 0 0
/proc/10781/statm: 246 176 72 123 0 121 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 984

[startup+25.5151 s]
/proc/loadavg: 0.43 0.44 0.68 2/65 10782
/proc/meminfo: memFree=658000/2055920 swapFree=4183348/4192956
[pid=10781] ppid=10779 vsize=1288 CPUtime=25.49
/proc/10781/stat : 10781 (march_ks) R 10779 10781 10673 0 -1 4194304 246 0 0 0 2549 0 0 0 25 0 1 0 194327237 1318912 228 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134541829 0 0 4096 0 0 0 0 17 0 0 0
/proc/10781/statm: 322 228 72 123 0 197 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 1288

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

[startup+26.2332 s]
/proc/loadavg: 0.47 0.45 0.68 2/65 10782
/proc/meminfo: memFree=658000/2055920 swapFree=4183348/4192956
[pid=10781] ppid=10779 vsize=1288 CPUtime=26.21
/proc/10781/stat : 10781 (march_ks) R 10779 10781 10673 0 -1 4194304 248 0 0 0 2621 0 0 0 25 0 1 0 194327237 1318912 230 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134585134 0 0 4096 0 0 0 0 17 0 0 0
/proc/10781/statm: 322 230 72 123 0 197 0
Current children cumulated CPU time (s) 26.21
Current children cumulated vsize (KiB) 1288

[startup+29.5105 s]
/proc/loadavg: 0.47 0.45 0.68 2/65 10782
/proc/meminfo: memFree=657936/2055920 swapFree=4183348/4192956
[pid=10781] ppid=10779 vsize=1288 CPUtime=29.49
/proc/10781/stat : 10781 (march_ks) R 10779 10781 10673 0 -1 4194304 259 0 0 0 2949 0 0 0 25 0 1 0 194327237 1318912 241 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134537973 0 0 4096 0 0 0 0 17 0 0 0
/proc/10781/statm: 322 241 72 123 0 197 0
Current children cumulated CPU time (s) 29.49
Current children cumulated vsize (KiB) 1288

[startup+32.7929 s]
/proc/loadavg: 0.51 0.45 0.68 2/65 10782
/proc/meminfo: memFree=657872/2055920 swapFree=4183348/4192956
[pid=10781] ppid=10779 vsize=1440 CPUtime=32.77
/proc/10781/stat : 10781 (march_ks) R 10779 10781 10673 0 -1 4194304 270 0 0 0 3277 0 0 0 25 0 1 0 194327237 1474560 252 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134628832 0 0 4096 0 0 0 0 17 0 0 0
/proc/10781/statm: 360 252 72 123 0 235 0
Current children cumulated CPU time (s) 32.77
Current children cumulated vsize (KiB) 1440

[startup+34.429 s]
/proc/loadavg: 0.51 0.45 0.68 2/65 10782
/proc/meminfo: memFree=657872/2055920 swapFree=4183348/4192956
[pid=10781] ppid=10779 vsize=1440 CPUtime=34.4
/proc/10781/stat : 10781 (march_ks) R 10779 10781 10673 0 -1 4194304 279 0 0 0 3440 0 0 0 25 0 1 0 194327237 1474560 261 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134536953 0 0 4096 0 0 0 0 17 0 0 0
/proc/10781/statm: 360 261 72 123 0 235 0
Current children cumulated CPU time (s) 34.4
Current children cumulated vsize (KiB) 1440

[startup+35.2491 s]
/proc/loadavg: 0.51 0.45 0.68 2/65 10782
/proc/meminfo: memFree=657808/2055920 swapFree=4183348/4192956
[pid=10781] ppid=10779 vsize=1440 CPUtime=35.22
/proc/10781/stat : 10781 (march_ks) R 10779 10781 10673 0 -1 4194304 283 0 0 0 3522 0 0 0 25 0 1 0 194327237 1474560 265 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134587472 0 0 4096 0 0 0 0 17 0 0 0
/proc/10781/statm: 360 265 72 123 0 235 0
Current children cumulated CPU time (s) 35.22
Current children cumulated vsize (KiB) 1440

[startup+35.4531 s]
/proc/loadavg: 0.51 0.45 0.68 2/65 10782
/proc/meminfo: memFree=657808/2055920 swapFree=4183348/4192956
[pid=10781] ppid=10779 vsize=1440 CPUtime=35.43
/proc/10781/stat : 10781 (march_ks) R 10779 10781 10673 0 -1 4194304 284 0 0 0 3543 0 0 0 25 0 1 0 194327237 1474560 266 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134536953 0 0 4096 0 0 0 0 17 0 0 0
/proc/10781/statm: 360 266 72 123 0 235 0
Current children cumulated CPU time (s) 35.43
Current children cumulated vsize (KiB) 1440

Child status: 20
Real time (s): 35.4867
CPU time (s): 35.4636
CPU user time (s): 35.4626
CPU system time (s): 0.000999
CPU usage (%): 99.9349
Max. virtual memory (cumulated for all children) (KiB): 1440

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 35.4626
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 286
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= 455

runsolver used 0.037994 second user time and 0.100984 second system time

The end

Launcher Data (download as text)

Begin job on node63 on Sat Feb 17 20:21:38 UTC 2007

IDJOB= 291557
IDBENCH= 19818
IDSOLVER= 111
FILE ID= node63/291557-1171743696

PBS_JOBID= 3839460

Free space on /tmp= 66562 MiB

SOLVER NAME= March KS 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/5SAT/v80/unif-k5-r21.3-v80-c1704-S1317485140-08.UNSAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/291557-1171743696/march_ks /tmp/evaluation/291557-1171743696/instance-291557-1171743696.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node63/watcher-291557-1171743696 -o ROOT/results/node63/solver-291557-1171743696 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/291557-1171743696/march_ks /tmp/evaluation/291557-1171743696/instance-291557-1171743696.cnf            

META MD5SUM SOLVER= cd0143c15836d32fe9acb8d523a59b67
MD5SUM BENCH=  09ba83c5bb0d24fb8b0cf9ee4e9590ec

RANDOM SEED= 568129548

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node63.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		: 3000.214
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		: 3000.214
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:        659248 kB
Buffers:         38044 kB
Cached:        1263708 kB
SwapCached:       3916 kB
Active:         684880 kB
Inactive:       626532 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        659248 kB
SwapTotal:     4192956 kB
SwapFree:      4183348 kB
Dirty:            2432 kB
Writeback:           0 kB
Mapped:          15176 kB
Slab:            71308 kB
Committed_AS:   470704 kB
PageTables:       1460 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= 66562 MiB

End job on node63 on Sat Feb 17 20:22:14 UTC 2007