Trace number 1517954

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 14.1628 14.1723

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/360/
unif-k3-r4.25-v360-c1530-S680239195-053.cnf
MD5SUM5093c545fdc7c5094d7e8f31c2f6e759
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark12.7991
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, 0 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 360 free variables and 1530 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.463
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 158 duplicate clauses
0.00/0.01	c resolvent_look() :: found 92 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 360 variables and 1622 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 1622 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1622 / 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 number of free variables = 360
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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c |****************************************************************| ( 1/999) NodeCount: 216
0.00/0.07	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/999) NodeCount: 1218
0.29/0.39	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/999) NodeCount: 4307
1.49/1.57	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/999) NodeCount: 10266
4.30/4.31	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/999) NodeCount: 17672
8.19/8.22	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/999) NodeCount: 23478
11.69/11.70	c |----------------------------------------------------------------|
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c |****************************************************************| ( 7/999) NodeCount: 26292
13.48/13.50	c |----------------------------------------------------------------|
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c |****************************************************************| ( 8/999) NodeCount: 27142
13.98/14.06	c |----------------------------------------------------------------|
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c |****************************************************************| ( 9/999) NodeCount: 27277
14.08/14.16	c |----------------------------------------------------------------|
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c |****************************************************************| (10/999) NodeCount: 27287
14.08/14.17	c |----------------------------------------------------------------|
c |
14.08/14.17	c
14.08/14.17	c main():: nodeCount: 27287
14.08/14.17	c main():: dead ends in main: 474
14.08/14.17	c main():: lookAheadCount: 2041173
14.08/14.17	c main():: unitResolveCount: 407771
14.08/14.17	c main():: time=14.150000
14.08/14.17	c main():: necessary_assignments: 4731
14.08/14.17	c main():: bin_sat: 0, bin_unsat 0
14.08/14.17	c main():: doublelook: #: 112246, succes #: 82149
14.08/14.17	c main():: doublelook: overall 5.665 of all possible doublelooks executed
14.08/14.17	c main():: doublelook: succesrate: 73.187, average DL_trigger: 47.943
14.08/14.17	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-1517954-1238293299/watcher-1517954-1238293299 -o /tmp/evaluation-result-1517954-1238293299/solver-1517954-1238293299 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1517954-1238293299.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 0.99 0.99 3/64 3487
/proc/meminfo: memFree=745152/2055920 swapFree=4178472/4192956
[pid=3487] ppid=3485 vsize=972 CPUtime=0
/proc/3487/stat : 3487 (march_nn) R 3485 3487 2717 0 -1 4194304 135 0 0 0 0 0 0 0 18 0 1 0 1101996878 995328 118 1992294400 134512640 135197250 4294956240 18446744073709551615 134695936 0 0 4096 0 0 0 0 17 1 0 0
/proc/3487/statm: 243 118 67 167 0 74 0

[startup+0.076428 s]
/proc/loadavg: 1.00 0.99 0.99 3/64 3487
/proc/meminfo: memFree=745152/2055920 swapFree=4178472/4192956
[pid=3487] ppid=3485 vsize=1508 CPUtime=0.07
/proc/3487/stat : 3487 (march_nn) R 3485 3487 2717 0 -1 4194304 243 0 0 0 7 0 0 0 18 0 1 0 1101996878 1544192 226 1992294400 134512640 135197250 4294956240 18446744073709551615 134718558 0 0 4096 0 0 0 0 17 1 0 0
/proc/3487/statm: 377 226 93 167 0 208 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1508

[startup+0.10143 s]
/proc/loadavg: 1.00 0.99 0.99 3/64 3487
/proc/meminfo: memFree=745152/2055920 swapFree=4178472/4192956
[pid=3487] ppid=3485 vsize=1508 CPUtime=0.09
/proc/3487/stat : 3487 (march_nn) R 3485 3487 2717 0 -1 4194304 243 0 0 0 9 0 0 0 18 0 1 0 1101996878 1544192 226 1992294400 134512640 135197250 4294956240 18446744073709551615 134541268 0 0 4096 0 0 0 0 17 1 0 0
/proc/3487/statm: 377 226 93 167 0 208 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1508

[startup+0.301454 s]
/proc/loadavg: 1.00 0.99 0.99 3/64 3487
/proc/meminfo: memFree=745152/2055920 swapFree=4178472/4192956
[pid=3487] ppid=3485 vsize=1508 CPUtime=0.29
/proc/3487/stat : 3487 (march_nn) R 3485 3487 2717 0 -1 4194304 255 0 0 0 29 0 0 0 19 0 1 0 1101996878 1544192 238 1992294400 134512640 135197250 4294956240 18446744073709551615 134525315 0 0 4096 0 0 0 0 17 1 0 0
/proc/3487/statm: 377 238 93 167 0 208 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1508

[startup+0.701502 s]
/proc/loadavg: 1.00 0.99 0.99 3/64 3487
/proc/meminfo: memFree=745152/2055920 swapFree=4178472/4192956
[pid=3487] ppid=3485 vsize=1672 CPUtime=0.69
/proc/3487/stat : 3487 (march_nn) R 3485 3487 2717 0 -1 4194304 269 0 0 0 69 0 0 0 22 0 1 0 1101996878 1712128 252 1992294400 134512640 135197250 4294956240 18446744073709551615 134552735 0 0 4096 0 0 0 0 17 1 0 0
/proc/3487/statm: 418 252 93 167 0 249 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1672

[startup+1.5016 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 3488
/proc/meminfo: memFree=744440/2055920 swapFree=4178472/4192956
[pid=3487] ppid=3485 vsize=1808 CPUtime=1.49
/proc/3487/stat : 3487 (march_nn) R 3485 3487 2717 0 -1 4194304 323 0 0 0 149 0 0 0 25 0 1 0 1101996878 1851392 306 1992294400 134512640 135197250 4294956240 18446744073709551615 134541916 0 0 4096 0 0 0 0 17 1 0 0
/proc/3487/statm: 452 306 93 167 0 283 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1808

[startup+3.10179 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 3488
/proc/meminfo: memFree=744120/2055920 swapFree=4178472/4192956
[pid=3487] ppid=3485 vsize=1876 CPUtime=3.09
/proc/3487/stat : 3487 (march_nn) R 3485 3487 2717 0 -1 4194304 344 0 0 0 309 0 0 0 25 0 1 0 1101996878 1921024 327 1992294400 134512640 135197250 4294956240 18446744073709551615 134525420 0 0 4096 0 0 0 0 17 1 0 0
/proc/3487/statm: 469 327 93 167 0 300 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1876

[startup+6.30117 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 3488
/proc/meminfo: memFree=743928/2055920 swapFree=4178472/4192956
[pid=3487] ppid=3485 vsize=2128 CPUtime=6.29
/proc/3487/stat : 3487 (march_nn) R 3485 3487 2717 0 -1 4194304 381 0 0 0 629 0 0 0 25 0 1 0 1101996878 2179072 364 1992294400 134512640 135197250 4294956240 18446744073709551615 134539269 0 0 4096 0 0 0 0 17 1 0 0
/proc/3487/statm: 532 364 93 167 0 363 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2128

[startup+12.7019 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 3488
/proc/meminfo: memFree=743416/2055920 swapFree=4178472/4192956
[pid=3487] ppid=3485 vsize=2520 CPUtime=12.68
/proc/3487/stat : 3487 (march_nn) R 3485 3487 2717 0 -1 4194304 478 0 0 0 1268 0 0 0 25 0 1 0 1101996878 2580480 461 1992294400 134512640 135197250 4294956240 18446744073709551615 134539341 0 0 4096 0 0 0 0 17 1 0 0
/proc/3487/statm: 630 461 93 167 0 461 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 2520

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

[startup+13.502 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 3488
/proc/meminfo: memFree=743352/2055920 swapFree=4178472/4192956
[pid=3487] ppid=3485 vsize=2520 CPUtime=13.48
/proc/3487/stat : 3487 (march_nn) R 3485 3487 2717 0 -1 4194304 487 0 0 0 1348 0 0 0 25 0 1 0 1101996878 2580480 470 1992294400 134512640 135197250 4294956240 18446744073709551615 134552641 0 0 4096 0 0 0 0 17 1 0 0
/proc/3487/statm: 630 470 93 167 0 461 0
Current children cumulated CPU time (s) 13.48
Current children cumulated vsize (KiB) 2520

[startup+13.9011 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 3488
/proc/meminfo: memFree=743352/2055920 swapFree=4178472/4192956
[pid=3487] ppid=3485 vsize=2520 CPUtime=13.88
/proc/3487/stat : 3487 (march_nn) R 3485 3487 2717 0 -1 4194304 491 0 0 0 1388 0 0 0 25 0 1 0 1101996878 2580480 474 1992294400 134512640 135197250 4294956240 18446744073709551615 134541955 0 0 4096 0 0 0 0 17 1 0 0
/proc/3487/statm: 630 474 93 167 0 461 0
Current children cumulated CPU time (s) 13.88
Current children cumulated vsize (KiB) 2520

[startup+14.1011 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 3488
/proc/meminfo: memFree=743352/2055920 swapFree=4178472/4192956
[pid=3487] ppid=3485 vsize=2520 CPUtime=14.08
/proc/3487/stat : 3487 (march_nn) R 3485 3487 2717 0 -1 4194304 493 0 0 0 1408 0 0 0 25 0 1 0 1101996878 2580480 476 1992294400 134512640 135197250 4294956240 18446744073709551615 134525291 0 0 4096 0 0 0 0 17 1 0 0
/proc/3487/statm: 630 476 93 167 0 461 0
Current children cumulated CPU time (s) 14.08
Current children cumulated vsize (KiB) 2520

Child status: 20
Real time (s): 14.1723
CPU time (s): 14.1628
CPU user time (s): 14.1538
CPU system time (s): 0.008998
CPU usage (%): 99.9332
Max. virtual memory (cumulated for all children) (KiB): 2520

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 14.1538
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= 496
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= 241

runsolver used 0.020996 second user time and 0.045993 second system time

The end

Launcher Data 

Begin job on node1 at 2009-03-29 04:21:39
IDJOB=1517954
IDBENCH=70639
IDSOLVER=522
FILE ID=node1/1517954-1238293299
PBS_JOBID= 9060979
Free space on /tmp= 66108 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/360/unif-k3-r4.25-v360-c1530-S680239195-053.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1517954-1238293299/watcher-1517954-1238293299 -o /tmp/evaluation-result-1517954-1238293299/solver-1517954-1238293299 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1517954-1238293299.cnf

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

MD5SUM BENCH= 5093c545fdc7c5094d7e8f31c2f6e759
RANDOM SEED=1233090810

node1.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		: 3000.229
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		: 3000.229
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:        745632 kB
Buffers:         96600 kB
Cached:        1112628 kB
SwapCached:       8380 kB
Active:         146996 kB
Inactive:      1072240 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        745632 kB
SwapTotal:     4192956 kB
SwapFree:      4178472 kB
Dirty:             808 kB
Writeback:           0 kB
Mapped:          15760 kB
Slab:            77072 kB
Committed_AS:  2890036 kB
PageTables:       1440 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= 66108 MiB
End job on node1 at 2009-03-29 04:21:53