Trace number 1544816

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 15.1137 15.1285

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/360/
unif-k3-r4.25-v360-c1530-S1369720750-015.cnf
MD5SUMa64f61e36a26258a4e57b34bdb756185
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark10.4644
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, 8 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 359 free variables and 1522 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.513
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 179 duplicate clauses
0.00/0.01	c resolvent_look() :: found 102 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 360 variables and 1624 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 1624 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1624 / 360 ) = 4.51
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: 186 JD: 13
0.01/0.07	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
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c |****************************************************************| 1 NC: 1247 JD: 13
0.40/0.46	c |----------------------------------------------------------------|
c |*
c |**
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c |****************
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c |****************************************************************| 2 NC: 4936 JD: 13
1.80/1.81	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 3 NC: 11718 JD: 13
4.30/4.37	c |----------------------------------------------------------------|
c |*
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c |***************************************************************
c |****************************************************************| 4 NC: 20965 JD: 13
7.89/7.96	c |----------------------------------------------------------------|
c |*
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c |***
c |****
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c |********************************
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c |****************************************************************| 5 NC: 29545 JD: 13
11.29/11.38	c |----------------------------------------------------------------|
c |*
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c |****
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c |****************************************************************| 6 NC: 35110 JD: 13
13.69/13.71	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 7 NC: 37425 JD: 13
14.68/14.74	c |----------------------------------------------------------------|
c |*
c |**
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c |****
c |*****
c |******
c |*******
c |********
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c |****************************************************************| 8 NC: 38103 JD: 13
14.98/15.05	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |*******
c |********
c |*********
c |**********
c |************
c |*************
c |**************
c |****************
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c |************************
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c |********************************
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c |********************************************************
c |****************************************************************| 9 NC: 38219 JD: 13
15.08/15.11	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |******
c |*******
c |********
c |****************
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c |************************
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c |********************************
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c |****************************************
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c |************************************************
c |****************************************************************| 10 NC: 38240 JD: 13
15.08/15.12	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 11 NC: 38242 JD: 13
15.08/15.12	c |----------------------------------------------------------------|
c |
15.08/15.12	c
15.08/15.12	c main():: nodeCount: 38242
15.08/15.12	c main():: dead ends in main: 1173
15.08/15.12	c main():: lookAheadCount: 2456884
15.08/15.12	c main():: unitResolveCount: 475230
15.08/15.12	c main():: time=15.110000
15.08/15.12	c main():: necessary_assignments: 8043
15.08/15.12	c main():: bin_sat: 0, bin_unsat 0
15.08/15.12	c main():: doublelook: #: 154581, succes #: 115236
15.08/15.12	c main():: doublelook: overall 6.545 of all possible doublelooks executed
15.08/15.12	c main():: doublelook: succesrate: 74.547, average DL_trigger: 5747.256
15.08/15.12	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-1544816-1238614716/watcher-1544816-1238614716 -o /tmp/evaluation-result-1544816-1238614716/solver-1544816-1238614716 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1544816-1238614716.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: 1.00 1.00 0.94 3/64 9007
/proc/meminfo: memFree=1641312/2055920 swapFree=4178496/4192956
[pid=9007] ppid=9005 vsize=792 CPUtime=0
/proc/9007/stat : 9007 (march_ks) R 9005 9007 8727 0 -1 4194304 119 0 0 0 0 0 0 0 18 0 1 0 1134138841 811008 102 1992294400 134512640 135019032 4294956240 18446744073709551615 134667835 0 0 4096 0 0 0 0 17 0 0 0
/proc/9007/statm: 198 102 52 123 0 73 0

[startup+0.0170561 s]
/proc/loadavg: 1.00 1.00 0.94 3/64 9007
/proc/meminfo: memFree=1641312/2055920 swapFree=4178496/4192956
[pid=9007] ppid=9005 vsize=1096 CPUtime=0.01
/proc/9007/stat : 9007 (march_ks) R 9005 9007 8727 0 -1 4194304 215 0 0 0 1 0 0 0 18 0 1 0 1134138841 1122304 198 1992294400 134512640 135019032 4294956240 18446744073709551615 134542776 0 0 4096 0 0 0 0 17 0 0 0
/proc/9007/statm: 274 198 73 123 0 149 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1096

[startup+0.101068 s]
/proc/loadavg: 1.00 1.00 0.94 3/64 9007
/proc/meminfo: memFree=1641312/2055920 swapFree=4178496/4192956
[pid=9007] ppid=9005 vsize=1096 CPUtime=0.1
/proc/9007/stat : 9007 (march_ks) R 9005 9007 8727 0 -1 4194304 231 0 0 0 10 0 0 0 18 0 1 0 1134138841 1122304 214 1992294400 134512640 135019032 4294956240 18446744073709551615 134527192 0 0 4096 0 0 0 0 17 0 0 0
/proc/9007/statm: 274 214 73 123 0 149 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1096

[startup+0.301101 s]
/proc/loadavg: 1.00 1.00 0.94 3/64 9007
/proc/meminfo: memFree=1641312/2055920 swapFree=4178496/4192956
[pid=9007] ppid=9005 vsize=1228 CPUtime=0.3
/proc/9007/stat : 9007 (march_ks) R 9005 9007 8727 0 -1 4194304 241 0 0 0 30 0 0 0 19 0 1 0 1134138841 1257472 224 1992294400 134512640 135019032 4294956240 18446744073709551615 134577543 0 0 4096 0 0 0 0 17 0 0 0
/proc/9007/statm: 307 224 73 123 0 182 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1228

[startup+0.701165 s]
/proc/loadavg: 1.00 1.00 0.94 3/64 9007
/proc/meminfo: memFree=1641312/2055920 swapFree=4178496/4192956
[pid=9007] ppid=9005 vsize=1228 CPUtime=0.7
/proc/9007/stat : 9007 (march_ks) R 9005 9007 8727 0 -1 4194304 251 0 0 0 70 0 0 0 23 0 1 0 1134138841 1257472 234 1992294400 134512640 135019032 4294956240 18446744073709551615 134526476 0 0 4096 0 0 0 0 17 0 0 0
/proc/9007/statm: 307 234 73 123 0 182 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1228

[startup+1.50129 s]
/proc/loadavg: 1.00 1.00 0.94 2/65 9008
/proc/meminfo: memFree=1640664/2055920 swapFree=4178496/4192956
[pid=9007] ppid=9005 vsize=1228 CPUtime=1.5
/proc/9007/stat : 9007 (march_ks) R 9005 9007 8727 0 -1 4194304 257 0 0 0 150 0 0 0 25 0 1 0 1134138841 1257472 240 1992294400 134512640 135019032 4294956240 18446744073709551615 134597295 0 0 4096 0 0 0 0 17 0 0 0
/proc/9007/statm: 307 240 73 123 0 182 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 1228

[startup+3.10155 s]
/proc/loadavg: 1.00 1.00 0.94 2/65 9008
/proc/meminfo: memFree=1640472/2055920 swapFree=4178496/4192956
[pid=9007] ppid=9005 vsize=1360 CPUtime=3.09
/proc/9007/stat : 9007 (march_ks) R 9005 9007 8727 0 -1 4194304 266 0 0 0 309 0 0 0 25 0 1 0 1134138841 1392640 249 1992294400 134512640 135019032 4294956240 18446744073709551615 134579126 0 0 4096 0 0 0 0 17 0 0 0
/proc/9007/statm: 340 249 73 123 0 215 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1360

[startup+6.30107 s]
/proc/loadavg: 1.00 1.00 0.94 2/65 9008
/proc/meminfo: memFree=1640344/2055920 swapFree=4178496/4192956
[pid=9007] ppid=9005 vsize=1360 CPUtime=6.29
/proc/9007/stat : 9007 (march_ks) R 9005 9007 8727 0 -1 4194304 286 0 0 0 629 0 0 0 25 0 1 0 1134138841 1392640 269 1992294400 134512640 135019032 4294956240 18446744073709551615 134598478 0 0 4096 0 0 0 0 17 0 0 0
/proc/9007/statm: 340 269 73 123 0 215 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1360

[startup+12.7011 s]
/proc/loadavg: 1.00 1.00 0.94 2/65 9008
/proc/meminfo: memFree=1640024/2055920 swapFree=4178496/4192956
[pid=9007] ppid=9005 vsize=1564 CPUtime=12.69
/proc/9007/stat : 9007 (march_ks) R 9005 9007 8727 0 -1 4194304 334 0 0 0 1269 0 0 0 25 0 1 0 1134138841 1601536 317 1992294400 134512640 135019032 4294956240 18446744073709551615 134538142 0 0 4096 0 0 0 0 17 0 0 0
/proc/9007/statm: 391 317 73 123 0 266 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1564

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

[startup+14.3054 s]
/proc/loadavg: 1.00 1.00 0.94 2/65 9008
/proc/meminfo: memFree=1640024/2055920 swapFree=4178496/4192956
[pid=9007] ppid=9005 vsize=1664 CPUtime=14.29
/proc/9007/stat : 9007 (march_ks) R 9005 9007 8727 0 -1 4194304 345 0 0 0 1429 0 0 0 25 0 1 0 1134138841 1703936 328 1992294400 134512640 135019032 4294956240 18446744073709551615 134564571 0 0 4096 0 0 0 0 17 0 0 0
/proc/9007/statm: 416 328 73 123 0 291 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 1664

[startup+14.7014 s]
/proc/loadavg: 1.00 1.00 0.94 2/65 9008
/proc/meminfo: memFree=1640024/2055920 swapFree=4178496/4192956
[pid=9007] ppid=9005 vsize=1664 CPUtime=14.68
/proc/9007/stat : 9007 (march_ks) R 9005 9007 8727 0 -1 4194304 348 0 0 0 1468 0 0 0 25 0 1 0 1134138841 1703936 331 1992294400 134512640 135019032 4294956240 18446744073709551615 134525355 0 0 4096 0 0 0 0 17 0 0 0
/proc/9007/statm: 416 331 73 123 0 291 0
Current children cumulated CPU time (s) 14.68
Current children cumulated vsize (KiB) 1664

[startup+15.1015 s]
/proc/loadavg: 1.00 1.00 0.94 2/65 9008
/proc/meminfo: memFree=1640024/2055920 swapFree=4178496/4192956
[pid=9007] ppid=9005 vsize=1664 CPUtime=15.08
/proc/9007/stat : 9007 (march_ks) R 9005 9007 8727 0 -1 4194304 352 0 0 0 1508 0 0 0 25 0 1 0 1134138841 1703936 335 1992294400 134512640 135019032 4294956240 18446744073709551615 134585851 0 0 4096 0 0 0 0 17 0 0 0
/proc/9007/statm: 416 335 73 123 0 291 0
Current children cumulated CPU time (s) 15.08
Current children cumulated vsize (KiB) 1664

Child status: 20
Real time (s): 15.1285
CPU time (s): 15.1137
CPU user time (s): 15.1107
CPU system time (s): 0.002999
CPU usage (%): 99.9023
Max. virtual memory (cumulated for all children) (KiB): 1664

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.1107
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 353
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= 511

runsolver used 0.019996 second user time and 0.054991 second system time

The end

Launcher Data 

Begin job on node3 at 2009-04-01 21:38:36
IDJOB=1544816
IDBENCH=70635
IDSOLVER=559
FILE ID=node3/1544816-1238614716
PBS_JOBID= 9073698
Free space on /tmp= 65972 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-S1369720750-015.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1544816-1238614716/watcher-1544816-1238614716 -o /tmp/evaluation-result-1544816-1238614716/solver-1544816-1238614716 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1544816-1238614716.cnf            

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

MD5SUM BENCH= a64f61e36a26258a4e57b34bdb756185
RANDOM SEED=547968193

node3.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		: 3000.275
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		: 3000.275
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:       1641856 kB
Buffers:         79780 kB
Cached:         254948 kB
SwapCached:       8332 kB
Active:         289996 kB
Inactive:        54668 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1641856 kB
SwapTotal:     4192956 kB
SwapFree:      4178496 kB
Dirty:            3144 kB
Writeback:           0 kB
Mapped:          15640 kB
Slab:            55536 kB
Committed_AS:  2851660 kB
PageTables:       1376 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= 65972 MiB
End job on node3 at 2009-04-01 21:38:51