Trace number 1517858

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 17.6993 17.7075

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/380/
unif-k3-r4.25-v380-c1615-S2043187304-036.cnf
MD5SUM8f761d7a83f8ed9f2fb1562cef6a194f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark14.8607
Satisfiable
(Un)Satisfiability was proved
Number of variables380
Number of clauses1615
Sum of the clauses size4845
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31615
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 380 variables and 1615 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 380 free variables and 1615 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.438
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 185 duplicate clauses
0.00/0.01	c resolvent_look() :: found 99 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 380 variables and 1714 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 380 variabels and 1714 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1714 / 380 ) = 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 = 380
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 |********************************
c |****************************************************************| ( 0/999) NodeCount: 21
0.00/0.02	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 1/999) NodeCount: 217
0.00/0.07	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/999) NodeCount: 1204
0.40/0.41	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/999) NodeCount: 4435
1.59/1.66	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/999) NodeCount: 10975
4.69/4.72	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/999) NodeCount: 19368
9.19/9.25	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/999) NodeCount: 26542
13.49/13.53	c |----------------------------------------------------------------|
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c |****************************************************************| ( 7/999) NodeCount: 30717
16.08/16.18	c |----------------------------------------------------------------|
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c |****************************************************************| ( 8/999) NodeCount: 32408
17.18/17.28	c |----------------------------------------------------------------|
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c |****************************************************************| ( 9/999) NodeCount: 32918
17.59/17.61	c |----------------------------------------------------------------|
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c |****************************************************************| (10/999) NodeCount: 33027
17.59/17.69	c |----------------------------------------------------------------|
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c |****************************************************************| (11/999) NodeCount: 33043
17.68/17.70	c |----------------------------------------------------------------|
c |
17.68/17.70	c
17.68/17.70	c main():: nodeCount: 33043
17.68/17.70	c main():: dead ends in main: 391
17.68/17.70	c main():: lookAheadCount: 2459468
17.68/17.70	c main():: unitResolveCount: 479557
17.68/17.70	c main():: time=17.690000
17.68/17.70	c main():: necessary_assignments: 5599
17.68/17.70	c main():: bin_sat: 0, bin_unsat 0
17.68/17.70	c main():: doublelook: #: 136002, succes #: 99320
17.68/17.70	c main():: doublelook: overall 5.697 of all possible doublelooks executed
17.68/17.70	c main():: doublelook: succesrate: 73.028, average DL_trigger: 50.457
17.68/17.70	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-1517858-1238292157/watcher-1517858-1238292157 -o /tmp/evaluation-result-1517858-1238292157/solver-1517858-1238292157 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1517858-1238292157.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: 1.05 1.01 1.00 3/64 5189
/proc/meminfo: memFree=1080320/2055920 swapFree=4179868/4192956
[pid=5189] ppid=5187 vsize=972 CPUtime=0
/proc/5189/stat : 5189 (march_nn) R 5187 5189 4395 0 -1 4194304 138 0 0 0 0 0 0 0 18 0 1 0 706108145 995328 121 1992294400 134512640 135197250 4294956240 18446744073709551615 134535888 0 0 4096 0 0 0 0 17 1 0 0
/proc/5189/statm: 243 121 67 167 0 74 0

[startup+0.0756949 s]
/proc/loadavg: 1.05 1.01 1.00 3/64 5189
/proc/meminfo: memFree=1080320/2055920 swapFree=4179868/4192956
[pid=5189] ppid=5187 vsize=1536 CPUtime=0.07
/proc/5189/stat : 5189 (march_nn) R 5187 5189 4395 0 -1 4194304 247 0 0 0 7 0 0 0 18 0 1 0 706108145 1572864 230 1992294400 134512640 135197250 4294956240 18446744073709551615 134718558 0 0 4096 0 0 0 0 17 1 0 0
/proc/5189/statm: 384 230 93 167 0 215 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1536

[startup+0.102699 s]
/proc/loadavg: 1.05 1.01 1.00 3/64 5189
/proc/meminfo: memFree=1080320/2055920 swapFree=4179868/4192956
[pid=5189] ppid=5187 vsize=1536 CPUtime=0.1
/proc/5189/stat : 5189 (march_nn) R 5187 5189 4395 0 -1 4194304 249 0 0 0 10 0 0 0 18 0 1 0 706108145 1572864 232 1992294400 134512640 135197250 4294956240 18446744073709551615 134541914 0 0 4096 0 0 0 0 17 1 0 0
/proc/5189/statm: 384 232 93 167 0 215 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1536

[startup+0.301727 s]
/proc/loadavg: 1.05 1.01 1.00 3/64 5189
/proc/meminfo: memFree=1080320/2055920 swapFree=4179868/4192956
[pid=5189] ppid=5187 vsize=1672 CPUtime=0.29
/proc/5189/stat : 5189 (march_nn) R 5187 5189 4395 0 -1 4194304 263 0 0 0 29 0 0 0 19 0 1 0 706108145 1712128 246 1992294400 134512640 135197250 4294956240 18446744073709551615 134542165 0 0 4096 0 0 0 0 17 1 0 0
/proc/5189/statm: 418 246 93 167 0 249 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1672

[startup+0.702783 s]
/proc/loadavg: 1.05 1.01 1.00 3/64 5189
/proc/meminfo: memFree=1080320/2055920 swapFree=4179868/4192956
[pid=5189] ppid=5187 vsize=1672 CPUtime=0.7
/proc/5189/stat : 5189 (march_nn) R 5187 5189 4395 0 -1 4194304 277 0 0 0 70 0 0 0 22 0 1 0 706108145 1712128 260 1992294400 134512640 135197250 4294956240 18446744073709551615 134556606 0 0 4096 0 0 0 0 17 1 0 0
/proc/5189/statm: 418 260 93 167 0 249 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1672

[startup+1.5019 s]
/proc/loadavg: 1.05 1.01 1.00 2/65 5190
/proc/meminfo: memFree=1079608/2055920 swapFree=4179868/4192956
[pid=5189] ppid=5187 vsize=1808 CPUtime=1.49
/proc/5189/stat : 5189 (march_nn) R 5187 5189 4395 0 -1 4194304 319 0 0 0 149 0 0 0 25 0 1 0 706108145 1851392 302 1992294400 134512640 135197250 4294956240 18446744073709551615 134552793 0 0 4096 0 0 0 0 17 1 0 0
/proc/5189/statm: 452 302 93 167 0 283 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1808

[startup+3.10112 s]
/proc/loadavg: 1.05 1.01 1.00 2/65 5190
/proc/meminfo: memFree=1079224/2055920 swapFree=4179868/4192956
[pid=5189] ppid=5187 vsize=1876 CPUtime=3.09
/proc/5189/stat : 5189 (march_nn) R 5187 5189 4395 0 -1 4194304 339 0 0 0 309 0 0 0 25 0 1 0 706108145 1921024 322 1992294400 134512640 135197250 4294956240 18446744073709551615 134552737 0 0 4096 0 0 0 0 17 1 0 0
/proc/5189/statm: 469 322 93 167 0 300 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1876

[startup+6.30158 s]
/proc/loadavg: 1.04 1.01 1.00 2/65 5190
/proc/meminfo: memFree=1078968/2055920 swapFree=4179868/4192956
[pid=5189] ppid=5187 vsize=2328 CPUtime=6.29
/proc/5189/stat : 5189 (march_nn) R 5187 5189 4395 0 -1 4194304 393 0 0 0 629 0 0 0 25 0 1 0 706108145 2383872 376 1992294400 134512640 135197250 4294956240 18446744073709551615 134539287 0 0 4096 0 0 0 0 17 1 0 0
/proc/5189/statm: 582 376 93 167 0 413 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2328

[startup+12.7015 s]
/proc/loadavg: 1.04 1.01 1.00 2/65 5190
/proc/meminfo: memFree=1078592/2055920 swapFree=4179868/4192956
[pid=5189] ppid=5187 vsize=2556 CPUtime=12.69
/proc/5189/stat : 5189 (march_nn) R 5187 5189 4395 0 -1 4194304 472 0 0 0 1269 0 0 0 25 0 1 0 706108145 2617344 455 1992294400 134512640 135197250 4294956240 18446744073709551615 134525339 0 0 4096 0 0 0 0 17 1 0 0
/proc/5189/statm: 639 455 93 167 0 470 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 2556

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

[startup+15.9019 s]
/proc/loadavg: 1.04 1.01 1.00 2/65 5190
/proc/meminfo: memFree=1078464/2055920 swapFree=4179868/4192956
[pid=5189] ppid=5187 vsize=2896 CPUtime=15.88
/proc/5189/stat : 5189 (march_nn) R 5187 5189 4395 0 -1 4194304 507 0 0 0 1588 0 0 0 25 0 1 0 706108145 2965504 490 1992294400 134512640 135197250 4294956240 18446744073709551615 134603831 0 0 4096 0 0 0 0 17 1 0 0
/proc/5189/statm: 724 490 93 167 0 555 0
Current children cumulated CPU time (s) 15.88
Current children cumulated vsize (KiB) 2896

[startup+16.701 s]
/proc/loadavg: 1.04 1.01 1.00 2/65 5190
/proc/meminfo: memFree=1078400/2055920 swapFree=4179868/4192956
[pid=5189] ppid=5187 vsize=2896 CPUtime=16.68
/proc/5189/stat : 5189 (march_nn) R 5187 5189 4395 0 -1 4194304 516 0 0 0 1668 0 0 0 25 0 1 0 706108145 2965504 499 1992294400 134512640 135197250 4294956240 18446744073709551615 134605238 0 0 4096 0 0 0 0 17 1 0 0
/proc/5189/statm: 724 499 93 167 0 555 0
Current children cumulated CPU time (s) 16.68
Current children cumulated vsize (KiB) 2896

[startup+17.5012 s]
/proc/loadavg: 1.03 1.01 1.00 2/65 5190
/proc/meminfo: memFree=1078336/2055920 swapFree=4179868/4192956
[pid=5189] ppid=5187 vsize=2896 CPUtime=17.49
/proc/5189/stat : 5189 (march_nn) R 5187 5189 4395 0 -1 4194304 524 0 0 0 1749 0 0 0 25 0 1 0 706108145 2965504 507 1992294400 134512640 135197250 4294956240 18446744073709551615 134591978 0 0 4096 0 0 0 0 17 1 0 0
/proc/5189/statm: 724 507 93 167 0 555 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 2896

[startup+17.7012 s]
/proc/loadavg: 1.03 1.01 1.00 2/65 5190
/proc/meminfo: memFree=1078336/2055920 swapFree=4179868/4192956
[pid=5189] ppid=5187 vsize=2896 CPUtime=17.68
/proc/5189/stat : 5189 (march_nn) R 5187 5189 4395 0 -1 4194304 526 0 0 0 1768 0 0 0 25 0 1 0 706108145 2965504 509 1992294400 134512640 135197250 4294956240 18446744073709551615 134542026 0 0 4096 0 0 0 0 17 1 0 0
/proc/5189/statm: 724 509 93 167 0 555 0
Current children cumulated CPU time (s) 17.68
Current children cumulated vsize (KiB) 2896

Child status: 20
Real time (s): 17.7075
CPU time (s): 17.6993
CPU user time (s): 17.6933
CPU system time (s): 0.005999
CPU usage (%): 99.954
Max. virtual memory (cumulated for all children) (KiB): 2896

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 17.6933
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= 528
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= 248

runsolver used 0.015997 second user time and 0.05999 second system time

The end

Launcher Data 

Begin job on node49 at 2009-03-29 04:02:37
IDJOB=1517858
IDBENCH=70631
IDSOLVER=522
FILE ID=node49/1517858-1238292157
PBS_JOBID= 9060981
Free space on /tmp= 66388 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/380/unif-k3-r4.25-v380-c1615-S2043187304-036.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1517858-1238292157/watcher-1517858-1238292157 -o /tmp/evaluation-result-1517858-1238292157/solver-1517858-1238292157 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1517858-1238292157.cnf

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

MD5SUM BENCH= 8f761d7a83f8ed9f2fb1562cef6a194f
RANDOM SEED=918110338

node49.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	: 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		: 3000.214
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:      2055920 kB
MemFree:       1080736 kB
Buffers:         96060 kB
Cached:         782236 kB
SwapCached:       6452 kB
Active:         226016 kB
Inactive:       661184 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1080736 kB
SwapTotal:     4192956 kB
SwapFree:      4179868 kB
Dirty:            2556 kB
Writeback:           0 kB
Mapped:          14676 kB
Slab:            73784 kB
Committed_AS:  1760756 kB
PageTables:       1384 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= 66388 MiB
End job on node49 at 2009-03-29 04:02:55