Trace number 1517966

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
march_nn nnUNSAT 12.5491 12.5522

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/360/
unif-k3-r4.25-v360-c1530-S253750560-086.cnf
MD5SUM1510e2158cc54ae2963f5611496bde02
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark11.2673
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) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
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, 6 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 359 free variables and 1524 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.426
0.00/0.01	c using 3-SAT heuristics (occurence based diff)
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 143 duplicate clauses
0.00/0.01	c resolvent_look() :: found 72 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 360 variables and 1596 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 1596 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1596 / 360 ) = 4.43
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 number of free variables = 359
0.00/0.01	c dynamic_preselect_setsize :: off
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 0/999) NodeCount: 21
0.00/0.02	c |----------------------------------------------------------------|
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0.00/0.07	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/999) NodeCount: 1234
0.39/0.41	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/999) NodeCount: 4170
1.59/1.63	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/999) NodeCount: 9571
4.09/4.19	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/999) NodeCount: 15931
7.59/7.68	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/999) NodeCount: 20691
10.59/10.61	c |----------------------------------------------------------------|
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c |****************************************************************| ( 7/999) NodeCount: 22918
11.99/12.05	c |----------------------------------------------------------------|
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12.38/12.48	c |----------------------------------------------------------------|
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c |****************************************************************| (11/999) NodeCount: 23665
12.48/12.55	c |----------------------------------------------------------------|
c |
12.48/12.55	c
12.48/12.55	c main():: nodeCount: 23665
12.48/12.55	c main():: dead ends in main: 579
12.48/12.55	c main():: lookAheadCount: 1832540
12.48/12.55	c main():: unitResolveCount: 377620
12.48/12.55	c main():: time=12.540000
12.48/12.55	c main():: necessary_assignments: 4932
12.48/12.55	c main():: bin_sat: 0, bin_unsat 0
12.48/12.55	c main():: doublelook: #: 97817, succes #: 71298
12.48/12.55	c main():: doublelook: overall 5.500 of all possible doublelooks executed
12.48/12.55	c main():: doublelook: succesrate: 72.889, average DL_trigger: 48.397
12.48/12.55	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1517966-1238293435/watcher-1517966-1238293435 -o /tmp/evaluation-result-1517966-1238293435/solver-1517966-1238293435 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1517966-1238293435.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: 1.92 1.38 1.14 3/76 3642
/proc/meminfo: memFree=1713096/2055920 swapFree=4173572/4192956
[pid=3642] ppid=3640 vsize=972 CPUtime=0
/proc/3642/stat : 3642 (march_nn) R 3640 3642 32636 0 -1 4194304 136 0 0 0 0 0 0 0 18 0 1 0 1102004612 995328 119 1992294400 134512640 135197250 4294956240 18446744073709551615 134695776 0 0 4096 0 0 0 0 17 1 0 0
/proc/3642/statm: 243 119 68 167 0 74 0

[startup+0.0913471 s]
/proc/loadavg: 1.92 1.38 1.14 3/76 3642
/proc/meminfo: memFree=1713096/2055920 swapFree=4173572/4192956
[pid=3642] ppid=3640 vsize=1512 CPUtime=0.08
/proc/3642/stat : 3642 (march_nn) R 3640 3642 32636 0 -1 4194304 245 0 0 0 8 0 0 0 18 0 1 0 1102004612 1548288 228 1992294400 134512640 135197250 4294956240 18446744073709551615 134525438 0 0 4096 0 0 0 0 17 1 0 0
/proc/3642/statm: 378 228 93 167 0 209 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1512

[startup+0.101348 s]
/proc/loadavg: 1.92 1.38 1.14 3/76 3642
/proc/meminfo: memFree=1713096/2055920 swapFree=4173572/4192956
[pid=3642] ppid=3640 vsize=1512 CPUtime=0.09
/proc/3642/stat : 3642 (march_nn) R 3640 3642 32636 0 -1 4194304 245 0 0 0 9 0 0 0 18 0 1 0 1102004612 1548288 228 1992294400 134512640 135197250 4294956240 18446744073709551615 134542072 0 0 4096 0 0 0 0 17 1 0 0
/proc/3642/statm: 378 228 93 167 0 209 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1512

[startup+0.30138 s]
/proc/loadavg: 1.92 1.38 1.14 3/76 3642
/proc/meminfo: memFree=1713096/2055920 swapFree=4173572/4192956
[pid=3642] ppid=3640 vsize=1652 CPUtime=0.29
/proc/3642/stat : 3642 (march_nn) R 3640 3642 32636 0 -1 4194304 261 0 0 0 29 0 0 0 19 0 1 0 1102004612 1691648 244 1992294400 134512640 135197250 4294956240 18446744073709551615 134542043 0 0 4096 0 0 0 0 17 1 0 0
/proc/3642/statm: 413 244 93 167 0 244 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1652

[startup+0.701443 s]
/proc/loadavg: 1.92 1.38 1.14 3/76 3642
/proc/meminfo: memFree=1713096/2055920 swapFree=4173572/4192956
[pid=3642] ppid=3640 vsize=1652 CPUtime=0.69
/proc/3642/stat : 3642 (march_nn) R 3640 3642 32636 0 -1 4194304 280 0 0 0 69 0 0 0 23 0 1 0 1102004612 1691648 263 1992294400 134512640 135197250 4294956240 18446744073709551615 134572855 0 0 4096 0 0 0 0 17 1 0 0
/proc/3642/statm: 413 263 93 167 0 244 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1652

[startup+1.50157 s]
/proc/loadavg: 1.92 1.38 1.14 2/77 3643
/proc/meminfo: memFree=1712320/2055920 swapFree=4173572/4192956
[pid=3642] ppid=3640 vsize=1944 CPUtime=1.49
/proc/3642/stat : 3642 (march_nn) R 3640 3642 32636 0 -1 4194304 321 0 0 0 149 0 0 0 25 0 1 0 1102004612 1990656 304 1992294400 134512640 135197250 4294956240 18446744073709551615 134542146 0 0 4096 0 0 0 0 17 1 0 0
/proc/3642/statm: 486 304 93 167 0 317 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1944

[startup+3.10183 s]
/proc/loadavg: 1.92 1.38 1.14 2/77 3643
/proc/meminfo: memFree=1711936/2055920 swapFree=4173572/4192956
[pid=3642] ppid=3640 vsize=2012 CPUtime=3.09
/proc/3642/stat : 3642 (march_nn) R 3640 3642 32636 0 -1 4194304 347 0 0 0 309 0 0 0 25 0 1 0 1102004612 2060288 330 1992294400 134512640 135197250 4294956240 18446744073709551615 134542117 0 0 4096 0 0 0 0 17 1 0 0
/proc/3642/statm: 503 330 93 167 0 334 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2012

[startup+6.30134 s]
/proc/loadavg: 1.85 1.37 1.13 2/77 3643
/proc/meminfo: memFree=1711744/2055920 swapFree=4173572/4192956
[pid=3642] ppid=3640 vsize=2264 CPUtime=6.29
/proc/3642/stat : 3642 (march_nn) R 3640 3642 32636 0 -1 4194304 393 0 0 0 629 0 0 0 25 0 1 0 1102004612 2318336 376 1992294400 134512640 135197250 4294956240 18446744073709551615 134542050 0 0 4096 0 0 0 0 17 1 0 0
/proc/3642/statm: 566 376 93 167 0 397 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2264

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

[startup+9.50185 s]
/proc/loadavg: 1.85 1.37 1.13 2/77 3643
/proc/meminfo: memFree=1711624/2055920 swapFree=4173572/4192956
[pid=3642] ppid=3640 vsize=2264 CPUtime=9.49
/proc/3642/stat : 3642 (march_nn) R 3640 3642 32636 0 -1 4194304 434 0 0 0 949 0 0 0 25 0 1 0 1102004612 2318336 417 1992294400 134512640 135197250 4294956240 18446744073709551615 134542144 0 0 4096 0 0 0 0 17 1 0 0
/proc/3642/statm: 566 417 93 167 0 397 0
Current children cumulated CPU time (s) 9.49
Current children cumulated vsize (KiB) 2264

[startup+11.1011 s]
/proc/loadavg: 1.78 1.36 1.13 2/77 3643
/proc/meminfo: memFree=1711368/2055920 swapFree=4173572/4192956
[pid=3642] ppid=3640 vsize=2492 CPUtime=11.08
/proc/3642/stat : 3642 (march_nn) R 3640 3642 32636 0 -1 4194304 453 0 0 0 1108 0 0 0 25 0 1 0 1102004612 2551808 436 1992294400 134512640 135197250 4294956240 18446744073709551615 134542096 0 0 4096 0 0 0 0 17 1 0 0
/proc/3642/statm: 623 436 93 167 0 454 0
Current children cumulated CPU time (s) 11.08
Current children cumulated vsize (KiB) 2492

[startup+11.9012 s]
/proc/loadavg: 1.78 1.36 1.13 2/77 3643
/proc/meminfo: memFree=1711368/2055920 swapFree=4173572/4192956
[pid=3642] ppid=3640 vsize=2492 CPUtime=11.88
/proc/3642/stat : 3642 (march_nn) R 3640 3642 32636 0 -1 4194304 462 0 0 0 1188 0 0 0 25 0 1 0 1102004612 2551808 445 1992294400 134512640 135197250 4294956240 18446744073709551615 134611664 0 0 4096 0 0 0 0 17 1 0 0
/proc/3642/statm: 623 445 93 167 0 454 0
Current children cumulated CPU time (s) 11.88
Current children cumulated vsize (KiB) 2492

[startup+12.3013 s]
/proc/loadavg: 1.78 1.36 1.13 2/77 3643
/proc/meminfo: memFree=1711240/2055920 swapFree=4173572/4192956
[pid=3642] ppid=3640 vsize=2492 CPUtime=12.28
/proc/3642/stat : 3642 (march_nn) R 3640 3642 32636 0 -1 4194304 467 0 0 0 1228 0 0 0 25 0 1 0 1102004612 2551808 450 1992294400 134512640 135197250 4294956240 18446744073709551615 134539266 0 0 4096 0 0 0 0 17 1 0 0
/proc/3642/statm: 623 450 93 167 0 454 0
Current children cumulated CPU time (s) 12.28
Current children cumulated vsize (KiB) 2492

[startup+12.5013 s]
/proc/loadavg: 1.78 1.36 1.13 2/77 3643
/proc/meminfo: memFree=1711240/2055920 swapFree=4173572/4192956
[pid=3642] ppid=3640 vsize=2492 CPUtime=12.48
/proc/3642/stat : 3642 (march_nn) R 3640 3642 32636 0 -1 4194304 469 0 0 0 1248 0 0 0 25 0 1 0 1102004612 2551808 452 1992294400 134512640 135197250 4294956240 18446744073709551615 134541916 0 0 4096 0 0 0 0 17 1 0 0
/proc/3642/statm: 623 452 93 167 0 454 0
Current children cumulated CPU time (s) 12.48
Current children cumulated vsize (KiB) 2492

Child status: 20
Real time (s): 12.5522
CPU time (s): 12.5491
CPU user time (s): 12.5401
CPU system time (s): 0.008998
CPU usage (%): 99.9751
Max. virtual memory (cumulated for all children) (KiB): 2492

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.5401
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 472
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= 26

runsolver used 0.015997 second user time and 0.047992 second system time

The end

Launcher Data 

Begin job on node69 at 2009-03-29 04:23:55
IDJOB=1517966
IDBENCH=70640
IDSOLVER=522
FILE ID=node69/1517966-1238293435
PBS_JOBID= 9060923
Free space on /tmp= 65728 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/360/unif-k3-r4.25-v360-c1530-S253750560-086.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1517966-1238293435/watcher-1517966-1238293435 -o /tmp/evaluation-result-1517966-1238293435/solver-1517966-1238293435 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1517966-1238293435.cnf

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

MD5SUM BENCH= 1510e2158cc54ae2963f5611496bde02
RANDOM SEED=1666086944

node69.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		: 3000.261
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		: 3000.261
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:       1713512 kB
Buffers:         62112 kB
Cached:         196620 kB
SwapCached:      10072 kB
Active:         163616 kB
Inactive:       107056 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1713512 kB
SwapTotal:     4192956 kB
SwapFree:      4173572 kB
Dirty:            1192 kB
Writeback:           0 kB
Mapped:          17704 kB
Slab:            56400 kB
Committed_AS:  3460300 kB
PageTables:       2336 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= 65724 MiB
End job on node69 at 2009-03-29 04:24:08