Trace number 1544818

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
SAT07 reference solver: March KS 2007-02-08UNSAT 27.2329 27.251

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/360/
unif-k3-r4.25-v360-c1530-S367138237-029.cnf
MD5SUMfe0a666da3389b49d8bffa123f8cecff
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark22.2306
Satisfiable
(Un)Satisfiability was proved
Number of variables360
Number of clauses1530
Sum of the clauses size4590
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31530
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.01	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.01	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.00/0.01	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.00/0.01	c main()::
0.00/0.01	c initFormula():: searching for DIMACS p-line....
0.00/0.01	c initFormula():: the DIMACS p-line indicates a CNF of 360 variables and 1530 clauses.
0.00/0.01	c parseCNF():: parsing....
0.00/0.01	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.01	c runParser():: parsing was successful, warming up engines...
0.00/0.01	c simplify_formula():: removed 0 tautological, 17 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 357 free variables and 1513 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.477
0.00/0.01	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.00/0.01	c using 3-SAT heuristics (occurence based diff)
0.00/0.01	c longest clause has size 3
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 164 duplicate clauses
0.00/0.01	c resolvent_look() :: found 75 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 360 variables and 1588 clauses.
0.00/0.01	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.00/0.01	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.00/0.01	c transformTo3SAT():: the transformation yielded 360 variabels and 1588 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1588 / 360 ) = 4.41
0.00/0.01	c longest clause has size 3
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c dynamic_preselect_setsize :: off
0.00/0.01	c suggested doublelook initial :: 0
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 0 NC: 142 JD: 12
0.04/0.06	c |----------------------------------------------------------------|
c |*
c |**
c |****
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c |****************************************************************| 1 NC: 2340 JD: 12
0.80/0.88	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 2 NC: 10200 JD: 12
3.89/3.91	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 3 NC: 26602 JD: 12
10.19/10.23	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 4 NC: 44493 JD: 12
17.09/17.16	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 5 NC: 58591 JD: 12
22.68/22.73	c |----------------------------------------------------------------|
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c |****************************************************************| 6 NC: 65689 JD: 12
25.58/25.64	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 7 NC: 68430 JD: 12
26.78/26.85	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 8 NC: 69151 JD: 12
27.07/27.18	c |----------------------------------------------------------------|
c |*
c |**
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c |****
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c |******
c |*******
c |********
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c |****************
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c |********************************************************
c |****************************************************************| 9 NC: 69278 JD: 12
27.17/27.24	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |********
c |****************
c |********************************
c |*********************************
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c |************************************************
c |****************************************************************| 10 NC: 69290 JD: 12
27.17/27.25	c |----------------------------------------------------------------|
c |
27.17/27.25	c
27.17/27.25	c main():: nodeCount: 69290
27.17/27.25	c main():: dead ends in main: 2552
27.17/27.25	c main():: lookAheadCount: 4350961
27.17/27.25	c main():: unitResolveCount: 894781
27.17/27.25	c main():: time=27.230000
27.17/27.25	c main():: necessary_assignments: 17187
27.17/27.25	c main():: bin_sat: 0, bin_unsat 0
27.17/27.25	c main():: doublelook: #: 278811, succes #: 207757
27.17/27.25	c main():: doublelook: overall 6.675 of all possible doublelooks executed
27.17/27.25	c main():: doublelook: succesrate: 74.515, average DL_trigger: 5746.217
27.17/27.25	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1544818-1238614721/watcher-1544818-1238614721 -o /tmp/evaluation-result-1544818-1238614721/solver-1544818-1238614721 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1544818-1238614721.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): 1800 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 0.95 3/80 4596
/proc/meminfo: memFree=1352752/2055912 swapFree=4170680/4192956
[pid=4596] ppid=4594 vsize=792 CPUtime=0
/proc/4596/stat : 4596 (march_ks) R 4594 4596 4270 0 -1 4194304 130 0 0 0 0 0 0 0 18 0 1 0 1134136032 811008 113 1992294400 134512640 135019032 4294956240 18446744073709551615 134599329 0 0 4096 0 0 0 0 17 0 0 0
/proc/4596/statm: 198 113 63 123 0 73 0

[startup+0.0486731 s]
/proc/loadavg: 0.99 0.98 0.95 3/80 4596
/proc/meminfo: memFree=1352752/2055912 swapFree=4170680/4192956
[pid=4596] ppid=4594 vsize=1092 CPUtime=0.04
/proc/4596/stat : 4596 (march_ks) R 4594 4596 4270 0 -1 4194304 225 0 0 0 4 0 0 0 18 0 1 0 1134136032 1118208 208 1992294400 134512640 135019032 4294956240 18446744073709551615 134538171 0 0 4096 0 0 0 0 17 0 0 0
/proc/4596/statm: 273 208 73 123 0 148 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1092

[startup+0.101675 s]
/proc/loadavg: 0.99 0.98 0.95 3/80 4596
/proc/meminfo: memFree=1352752/2055912 swapFree=4170680/4192956
[pid=4596] ppid=4594 vsize=1224 CPUtime=0.1
/proc/4596/stat : 4596 (march_ks) R 4594 4596 4270 0 -1 4194304 233 0 0 0 10 0 0 0 18 0 1 0 1134136032 1253376 216 1992294400 134512640 135019032 4294956240 18446744073709551615 134579080 0 0 4096 0 0 0 0 17 0 0 0
/proc/4596/statm: 306 216 73 123 0 181 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1224

[startup+0.301696 s]
/proc/loadavg: 0.99 0.98 0.95 3/80 4596
/proc/meminfo: memFree=1352752/2055912 swapFree=4170680/4192956
[pid=4596] ppid=4594 vsize=1224 CPUtime=0.3
/proc/4596/stat : 4596 (march_ks) R 4594 4596 4270 0 -1 4194304 240 0 0 0 30 0 0 0 19 0 1 0 1134136032 1253376 223 1992294400 134512640 135019032 4294956240 18446744073709551615 134542537 0 0 4096 0 0 0 0 17 0 0 0
/proc/4596/statm: 306 223 73 123 0 181 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1224

[startup+0.701737 s]
/proc/loadavg: 0.99 0.98 0.95 3/80 4596
/proc/meminfo: memFree=1352752/2055912 swapFree=4170680/4192956
[pid=4596] ppid=4594 vsize=1224 CPUtime=0.7
/proc/4596/stat : 4596 (march_ks) R 4594 4596 4270 0 -1 4194304 245 0 0 0 70 0 0 0 23 0 1 0 1134136032 1253376 228 1992294400 134512640 135019032 4294956240 18446744073709551615 134525702 0 0 4096 0 0 0 0 17 0 0 0
/proc/4596/statm: 306 228 73 123 0 181 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1224

[startup+1.50182 s]
/proc/loadavg: 0.99 0.98 0.95 2/81 4597
/proc/meminfo: memFree=1351912/2055912 swapFree=4170680/4192956
[pid=4596] ppid=4594 vsize=1224 CPUtime=1.5
/proc/4596/stat : 4596 (march_ks) R 4594 4596 4270 0 -1 4194304 252 0 0 0 150 0 0 0 25 0 1 0 1134136032 1253376 235 1992294400 134512640 135019032 4294956240 18446744073709551615 134538194 0 0 4096 0 0 0 0 17 0 0 0
/proc/4596/statm: 306 235 73 123 0 181 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 1224

[startup+3.10198 s]
/proc/loadavg: 0.99 0.98 0.95 2/81 4597
/proc/meminfo: memFree=1351720/2055912 swapFree=4170680/4192956
[pid=4596] ppid=4594 vsize=1224 CPUtime=3.1
/proc/4596/stat : 4596 (march_ks) R 4594 4596 4270 0 -1 4194304 258 0 0 0 310 0 0 0 25 0 1 0 1134136032 1253376 241 1992294400 134512640 135019032 4294956240 18446744073709551615 134563528 0 0 4096 0 0 0 0 17 0 0 0
/proc/4596/statm: 306 241 73 123 0 181 0
Current children cumulated CPU time (s) 3.1
Current children cumulated vsize (KiB) 1224

[startup+6.30132 s]
/proc/loadavg: 0.99 0.98 0.95 2/81 4597
/proc/meminfo: memFree=1351656/2055912 swapFree=4170680/4192956
[pid=4596] ppid=4594 vsize=1356 CPUtime=6.29
/proc/4596/stat : 4596 (march_ks) R 4594 4596 4270 0 -1 4194304 266 0 0 0 629 0 0 0 25 0 1 0 1134136032 1388544 249 1992294400 134512640 135019032 4294956240 18446744073709551615 134548116 0 0 4096 0 0 0 0 17 0 0 0
/proc/4596/statm: 339 249 73 123 0 214 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1356

[startup+12.702 s]
/proc/loadavg: 0.99 0.98 0.95 2/81 4597
/proc/meminfo: memFree=1351464/2055912 swapFree=4170680/4192956
[pid=4596] ppid=4594 vsize=1356 CPUtime=12.69
/proc/4596/stat : 4596 (march_ks) R 4594 4596 4270 0 -1 4194304 278 0 0 0 1269 0 0 0 25 0 1 0 1134136032 1388544 261 1992294400 134512640 135019032 4294956240 18446744073709551615 134542609 0 0 4096 0 0 0 0 17 0 0 0
/proc/4596/statm: 339 261 73 123 0 214 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1356

[startup+25.5013 s]
/proc/loadavg: 0.99 0.98 0.95 2/81 4597
/proc/meminfo: memFree=1351464/2055912 swapFree=4170680/4192956
[pid=4596] ppid=4594 vsize=1500 CPUtime=25.48
/proc/4596/stat : 4596 (march_ks) R 4594 4596 4270 0 -1 4194304 316 0 0 0 2548 0 0 0 25 0 1 0 1134136032 1536000 299 1992294400 134512640 135019032 4294956240 18446744073709551615 134538181 0 0 4096 0 0 0 0 17 0 0 0
/proc/4596/statm: 375 299 73 123 0 250 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1500

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

[startup+26.3014 s]
/proc/loadavg: 0.99 0.98 0.95 2/81 4597
/proc/meminfo: memFree=1351336/2055912 swapFree=4170680/4192956
[pid=4596] ppid=4594 vsize=1704 CPUtime=26.28
/proc/4596/stat : 4596 (march_ks) R 4594 4596 4270 0 -1 4194304 352 0 0 0 2628 0 0 0 25 0 1 0 1134136032 1744896 335 1992294400 134512640 135019032 4294956240 18446744073709551615 134677363 0 0 4096 0 0 0 0 17 0 0 0
/proc/4596/statm: 426 335 73 123 0 301 0
Current children cumulated CPU time (s) 26.28
Current children cumulated vsize (KiB) 1704

[startup+26.7014 s]
/proc/loadavg: 0.99 0.98 0.95 2/81 4597
/proc/meminfo: memFree=1351336/2055912 swapFree=4170680/4192956
[pid=4596] ppid=4594 vsize=1704 CPUtime=26.68
/proc/4596/stat : 4596 (march_ks) R 4594 4596 4270 0 -1 4194304 354 0 0 0 2668 0 0 0 25 0 1 0 1134136032 1744896 337 1992294400 134512640 135019032 4294956240 18446744073709551615 134526476 0 0 4096 0 0 0 0 17 0 0 0
/proc/4596/statm: 426 337 73 123 0 301 0
Current children cumulated CPU time (s) 26.68
Current children cumulated vsize (KiB) 1704

[startup+27.1015 s]
/proc/loadavg: 0.99 0.98 0.95 2/81 4597
/proc/meminfo: memFree=1351336/2055912 swapFree=4170680/4192956
[pid=4596] ppid=4594 vsize=1704 CPUtime=27.07
/proc/4596/stat : 4596 (march_ks) R 4594 4596 4270 0 -1 4194304 356 0 0 0 2707 0 0 0 25 0 1 0 1134136032 1744896 339 1992294400 134512640 135019032 4294956240 18446744073709551615 134526533 0 0 4096 0 0 0 0 17 0 0 0
/proc/4596/statm: 426 339 73 123 0 301 0
Current children cumulated CPU time (s) 27.07
Current children cumulated vsize (KiB) 1704

[startup+27.2015 s]
/proc/loadavg: 0.99 0.98 0.95 2/81 4597
/proc/meminfo: memFree=1351336/2055912 swapFree=4170680/4192956
[pid=4596] ppid=4594 vsize=1704 CPUtime=27.17
/proc/4596/stat : 4596 (march_ks) R 4594 4596 4270 0 -1 4194304 356 0 0 0 2717 0 0 0 25 0 1 0 1134136032 1744896 339 1992294400 134512640 135019032 4294956240 18446744073709551615 134522672 0 0 4096 0 0 0 0 17 0 0 0
/proc/4596/statm: 426 340 73 123 0 301 0
Current children cumulated CPU time (s) 27.17
Current children cumulated vsize (KiB) 1704

Child status: 20
Real time (s): 27.251
CPU time (s): 27.2329
CPU user time (s): 27.2269
CPU system time (s): 0.005999
CPU usage (%): 99.9336
Max. virtual memory (cumulated for all children) (KiB): 1704

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 27.2269
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 358
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= 2
involuntary context switches= 531

runsolver used 0.034994 second user time and 0.105983 second system time

The end

Launcher Data 

Begin job on node78 at 2009-04-01 21:38:41
IDJOB=1544818
IDBENCH=70636
IDSOLVER=559
FILE ID=node78/1544818-1238614721
PBS_JOBID= 9073579
Free space on /tmp= 126872 MiB

SOLVER NAME= SAT07 reference solver: March KS 2007-02-08
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/360/unif-k3-r4.25-v360-c1530-S367138237-029.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1544818-1238614721/watcher-1544818-1238614721 -o /tmp/evaluation-result-1544818-1238614721/solver-1544818-1238614721 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1544818-1238614721.cnf            

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= fe0a666da3389b49d8bffa123f8cecff
RANDOM SEED=1810862693

node78.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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:      2055912 kB
MemFree:       1353232 kB
Buffers:        100176 kB
Cached:         507900 kB
SwapCached:       7800 kB
Active:         345880 kB
Inactive:       272696 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055912 kB
LowFree:       1353232 kB
SwapTotal:     4192956 kB
SwapFree:      4170680 kB
Dirty:            2896 kB
Writeback:           0 kB
Mapped:          16136 kB
Slab:            68336 kB
Committed_AS:  2743828 kB
PageTables:       2556 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 126868 MiB
End job on node78 at 2009-04-01 21:39:09