Trace number 316187

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 15.3297 15.3362

General information on the benchmark

Namecrafted/spence/
medium/s69-100.cnf
MD5SUMb1f1c259b38436e8c9f1623770b4a93b
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.9684
Satisfiable
(Un)Satisfiability was proved
Number of variables69
Number of clauses148
Sum of the clauses size444
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3148
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	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.00	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.00/0.00	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.00/0.00	c main()::
0.00/0.00	c initFormula():: searching for DIMACS p-line....
0.00/0.00	c initFormula():: the DIMACS p-line indicates a CNF of 69 variables and 148 clauses.
0.00/0.00	c parseCNF():: parsing....
0.00/0.00	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.00	c runParser():: parsing was successful, warming up engines...
0.00/0.00	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.00	c preprocessing fase I completed:: there are now 69 free variables and 148 clauses.
0.00/0.00	c stat :: sign balance is biased by 0.071
0.00/0.00	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.00/0.00	c using 3-SAT heuristics (occurence based diff)
0.00/0.00	c longest clause has size 3
0.00/0.00	c simplify_formula():: removed 0 tautological, 0 satisfied and 504 duplicate clauses
0.00/0.00	c lessRedundantTransformation():: nothing to be done.
0.00/0.00	c transformTo3SAT():: you gave me 69 variables and 148 clauses.
0.00/0.00	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.00/0.00	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.00/0.00	c transformTo3SAT():: the transformation yielded 69 variabels and 148 clauses.
0.00/0.00	c main():: clause / variable ratio: ( 148 / 69 ) = 2.14
0.00/0.00	c longest clause has size 3
0.00/0.00	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.00	c dynamic_preselect_setsize :: on
0.00/0.00	c suggested doublelook initial :: 0
0.00/0.00	c main():: all systems go!
0.00/0.00	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 0 NC: 142 JD: 11
0.00/0.01	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 1 NC: 2290 JD: 11
0.09/0.16	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 2 NC: 11908 JD: 11
0.69/0.79	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 3 NC: 38110 JD: 11
2.39/2.47	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 4 NC: 86256 JD: 11
5.50/5.56	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 5 NC: 144464 JD: 11
9.19/9.26	c |----------------------------------------------------------------|
c |*
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c |****
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c |****************************************************************| 6 NC: 196193 JD: 11
12.49/12.54	c |----------------------------------------------------------------|
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c |****************************************************************| 7 NC: 224942 JD: 11
14.29/14.36	c |----------------------------------------------------------------|
c |*
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c |******
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c |****************************************************************| 8 NC: 236468 JD: 11
15.09/15.10	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |*******
c |********
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c |****************************************************************| 9 NC: 239500 JD: 11
15.19/15.29	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
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c |************************
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c |****************************************************************| 10 NC: 240063 JD: 11
15.29/15.33	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 11 NC: 240102 JD: 11
15.29/15.33	c |----------------------------------------------------------------|
c |
15.29/15.33	c
15.29/15.33	c main():: nodeCount: 240102
15.29/15.33	c main():: dead ends in main: 6522
15.29/15.33	c main():: lookAheadCount: 9886457
15.29/15.33	c main():: unitResolveCount: 956180
15.29/15.33	c main():: time=15.320000
15.29/15.33	c main():: necessary_assignments: 21863
15.29/15.33	c main():: bin_sat: 0, bin_unsat 0
15.29/15.33	c main():: doublelook: #: 377392, succes #: 256381
15.29/15.33	c main():: doublelook: overall 3.992 of all possible doublelooks executed
15.29/15.33	c main():: doublelook: succesrate: 67.935, average DL_trigger: 526.189
15.29/15.33	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node43/watcher-316187-1172665286 -o ROOT/results/node43/solver-316187-1172665286 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/316187-1172665286/march_ks /tmp/evaluation/316187-1172665286/instance-316187-1172665286.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: 1.00 1.00 1.00 3/64 21933
/proc/meminfo: memFree=870136/2055920 swapFree=4177360/4192956
[pid=21933] ppid=21931 vsize=660 CPUtime=0
/proc/21933/stat : 21933 (march_ks) R 21931 21933 21488 0 -1 4194304 121 0 0 0 0 0 0 0 18 0 1 0 286484670 675840 103 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134598880 0 0 4096 0 0 0 0 17 1 0 0
/proc/21933/statm: 165 103 73 123 0 40 0

[startup+0.044439 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 21933
/proc/meminfo: memFree=870136/2055920 swapFree=4177360/4192956
[pid=21933] ppid=21931 vsize=660 CPUtime=0.04
/proc/21933/stat : 21933 (march_ks) R 21931 21933 21488 0 -1 4194304 127 0 0 0 4 0 0 0 18 0 1 0 286484670 675840 109 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134538659 0 0 4096 0 0 0 0 17 1 0 0
/proc/21933/statm: 165 109 73 123 0 40 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 660

[startup+0.101366 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 21933
/proc/meminfo: memFree=870136/2055920 swapFree=4177360/4192956
[pid=21933] ppid=21931 vsize=660 CPUtime=0.09
/proc/21933/stat : 21933 (march_ks) R 21931 21933 21488 0 -1 4194304 129 0 0 0 9 0 0 0 18 0 1 0 286484670 675840 111 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134538493 0 0 4096 0 0 0 0 17 1 0 0
/proc/21933/statm: 165 111 73 123 0 40 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 660

[startup+0.301399 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 21933
/proc/meminfo: memFree=870136/2055920 swapFree=4177360/4192956
[pid=21933] ppid=21931 vsize=660 CPUtime=0.29
/proc/21933/stat : 21933 (march_ks) R 21931 21933 21488 0 -1 4194304 132 0 0 0 29 0 0 0 19 0 1 0 286484670 675840 114 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134547915 0 0 4096 0 0 0 0 17 1 0 0
/proc/21933/statm: 165 114 73 123 0 40 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 660

[startup+0.701465 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 21933
/proc/meminfo: memFree=870136/2055920 swapFree=4177360/4192956
[pid=21933] ppid=21931 vsize=792 CPUtime=0.69
/proc/21933/stat : 21933 (march_ks) R 21931 21933 21488 0 -1 4194304 134 0 0 0 69 0 0 0 22 0 1 0 286484670 811008 116 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134628856 0 0 4096 0 0 0 0 17 1 0 0
/proc/21933/statm: 198 116 73 123 0 73 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 792

[startup+1.5016 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 21934
/proc/meminfo: memFree=869872/2055920 swapFree=4177360/4192956
[pid=21933] ppid=21931 vsize=792 CPUtime=1.49
/proc/21933/stat : 21933 (march_ks) R 21931 21933 21488 0 -1 4194304 138 0 0 0 149 0 0 0 25 0 1 0 286484670 811008 120 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134538609 0 0 4096 0 0 0 0 17 1 0 0
/proc/21933/statm: 198 120 73 123 0 73 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 792

[startup+3.10186 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 21934
/proc/meminfo: memFree=869744/2055920 swapFree=4177360/4192956
[pid=21933] ppid=21931 vsize=792 CPUtime=3.09
/proc/21933/stat : 21933 (march_ks) R 21931 21933 21488 0 -1 4194304 142 0 0 0 309 0 0 0 25 0 1 0 286484670 811008 124 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134527194 0 0 4096 0 0 0 0 17 1 0 0
/proc/21933/statm: 198 124 73 123 0 73 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 792

[startup+6.3014 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 21934
/proc/meminfo: memFree=869744/2055920 swapFree=4177360/4192956
[pid=21933] ppid=21931 vsize=792 CPUtime=6.29
/proc/21933/stat : 21933 (march_ks) R 21931 21933 21488 0 -1 4194304 157 0 0 0 629 0 0 0 25 0 1 0 286484670 811008 139 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134598769 0 0 4096 0 0 0 0 17 1 0 0
/proc/21933/statm: 198 139 73 123 0 73 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 792

[startup+12.7015 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 21934
/proc/meminfo: memFree=869616/2055920 swapFree=4177360/4192956
[pid=21933] ppid=21931 vsize=928 CPUtime=12.69
/proc/21933/stat : 21933 (march_ks) R 21931 21933 21488 0 -1 4194304 167 0 0 0 1269 0 0 0 25 0 1 0 286484670 950272 149 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134548654 0 0 4096 0 0 0 0 17 1 0 0
/proc/21933/statm: 232 149 73 123 0 107 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 928

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

[startup+14.3057 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 21934
/proc/meminfo: memFree=869552/2055920 swapFree=4177360/4192956
[pid=21933] ppid=21931 vsize=928 CPUtime=14.29
/proc/21933/stat : 21933 (march_ks) R 21931 21933 21488 0 -1 4194304 169 0 0 0 1429 0 0 0 25 0 1 0 286484670 950272 151 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134538594 0 0 4096 0 0 0 0 17 1 0 0
/proc/21933/statm: 232 151 73 123 0 107 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 928

[startup+15.1019 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 21934
/proc/meminfo: memFree=869552/2055920 swapFree=4177360/4192956
[pid=21933] ppid=21931 vsize=928 CPUtime=15.09
/proc/21933/stat : 21933 (march_ks) R 21931 21933 21488 0 -1 4194304 171 0 0 0 1509 0 0 0 25 0 1 0 286484670 950272 153 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134684125 0 0 4096 0 0 0 0 17 1 0 0
/proc/21933/statm: 232 153 73 123 0 107 0
Current children cumulated CPU time (s) 15.09
Current children cumulated vsize (KiB) 928

[startup+15.3019 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 21934
/proc/meminfo: memFree=869552/2055920 swapFree=4177360/4192956
[pid=21933] ppid=21931 vsize=928 CPUtime=15.29
/proc/21933/stat : 21933 (march_ks) R 21931 21933 21488 0 -1 4194304 171 0 0 0 1529 0 0 0 25 0 1 0 286484670 950272 153 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134538629 0 0 4096 0 0 0 0 17 1 0 0
/proc/21933/statm: 232 153 73 123 0 107 0
Current children cumulated CPU time (s) 15.29
Current children cumulated vsize (KiB) 928

Child status: 20
Real time (s): 15.3362
CPU time (s): 15.3297
CPU user time (s): 15.3257
CPU system time (s): 0.003999
CPU usage (%): 99.9576
Max. virtual memory (cumulated for all children) (KiB): 928

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.3257
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 172
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= 9
involuntary context switches= 17

runsolver used 0.017997 second user time and 0.043993 second system time

The end

Launcher Data (download as text)

Begin job on node43 on Wed Feb 28 12:21:26 UTC 2007

IDJOB= 316187
IDBENCH= 20435
IDSOLVER= 111
FILE ID= node43/316187-1172665286

PBS_JOBID= 3981218

Free space on /tmp= 66526 MiB

SOLVER NAME= March KS 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/spence/medium/s69-100.cnf
COMMAND LINE= /tmp/evaluation/316187-1172665286/march_ks /tmp/evaluation/316187-1172665286/instance-316187-1172665286.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node43/watcher-316187-1172665286 -o ROOT/results/node43/solver-316187-1172665286 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/316187-1172665286/march_ks /tmp/evaluation/316187-1172665286/instance-316187-1172665286.cnf            

META MD5SUM SOLVER= cd0143c15836d32fe9acb8d523a59b67
MD5SUM BENCH=  b1f1c259b38436e8c9f1623770b4a93b

RANDOM SEED= 475760530

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node43.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		: 3000.281
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		: 3000.281
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:        870544 kB
Buffers:         42480 kB
Cached:        1082092 kB
SwapCached:       9940 kB
Active:         449108 kB
Inactive:       691984 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        870544 kB
SwapTotal:     4192956 kB
SwapFree:      4177360 kB
Dirty:            2260 kB
Writeback:           0 kB
Mapped:          15360 kB
Slab:            30316 kB
Committed_AS:   716068 kB
PageTables:       1392 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= 66526 MiB

End job on node43 on Wed Feb 28 12:21:42 UTC 2007