Trace number 1554105

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 25.8741 25.8877

General information on the benchmark

NameAPPLICATIONS/bitverif/countbitsrotate/
countbitsrotate016.cnf
MD5SUMcb3e934c498918abbc8bcf7f964c0d21
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark19.837
Satisfiable
(Un)Satisfiability was proved
Number of variables2087
Number of clauses6212
Sum of the clauses size14492
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 24140
Number of clauses of size 32070
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.05	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.05	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.00/0.05	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.00/0.05	c main()::
0.00/0.05	c initFormula():: searching for DIMACS p-line....
0.00/0.05	c initFormula():: the DIMACS p-line indicates a CNF of 2087 variables and 6212 clauses.
0.00/0.05	c parseCNF():: parsing....
0.00/0.05	c parseCNF():: the CNF contains 2 unary clauses.
0.00/0.05	c runParser():: parsing was successful, warming up engines...
0.00/0.05	c simplify_formula():: removed 0 tautological, 4 satisfied and 0 duplicate clauses
0.00/0.05	c preprocessing fase I completed:: there are now 2085 free variables and 6208 clauses.
0.00/0.05	c stat :: sign balance is biased by 0.109
0.00/0.05	c using 3-SAT heuristics (occurence based diff)
0.00/0.05	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.05	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.05	c lessRedundantTransformation():: nothing to be done.
0.00/0.05	c transformTo3SAT():: you gave me 2087 variables and 6208 clauses.
0.00/0.05	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.00/0.05	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.00/0.05	c transformTo3SAT():: the transformation yielded 2087 variabels and 6208 clauses.
0.00/0.05	c main():: clause / variable ratio: ( 6208 / 2087 ) = 2.97
0.00/0.05	c longest clause has size 3
0.00/0.05	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.05	c number of free variables = 2085
0.00/0.05	c dynamic_preselect_setsize :: off
0.00/0.05	c main():: all systems go!
0.00/0.05	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| ( 0/999) NodeCount: 15
0.06/0.07	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 1/999) NodeCount: 120
0.09/0.19	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/999) NodeCount: 534
0.69/0.72	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/999) NodeCount: 1612
2.29/2.30	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/999) NodeCount: 3636
5.49/5.58	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/999) NodeCount: 6458
10.49/10.51	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/999) NodeCount: 9410
16.09/16.11	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 7/999) NodeCount: 11748
20.68/20.78	c |----------------------------------------------------------------|
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c |****************************************************************| ( 8/999) NodeCount: 13173
23.68/23.75	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 9/999) NodeCount: 13835
25.18/25.21	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| (10/999) NodeCount: 14054
25.69/25.73	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| (11/999) NodeCount: 14103
25.79/25.86	c |----------------------------------------------------------------|
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c |****************************************************************| (12/999) NodeCount: 14109
25.79/25.88	c |----------------------------------------------------------------|
c |
25.79/25.88	c
25.79/25.88	c main():: nodeCount: 14109
25.79/25.88	c main():: dead ends in main: 4
25.79/25.88	c main():: lookAheadCount: 806353
25.79/25.88	c main():: unitResolveCount: 1838992
25.79/25.88	c main():: time=25.870000
25.79/25.88	c main():: necessary_assignments: 11532
25.79/25.88	c main():: bin_sat: 0, bin_unsat 0
25.79/25.88	c main():: doublelook: #: 28861, succes #: 16854
25.79/25.88	c main():: doublelook: overall 3.692 of all possible doublelooks executed
25.79/25.88	c main():: doublelook: succesrate: 58.397, average DL_trigger: 185.071
25.79/25.88	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-1554105-1238723631/watcher-1554105-1238723631 -o /tmp/evaluation-result-1554105-1238723631/solver-1554105-1238723631 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1554105-1238723631.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 0.99 3/64 25681
/proc/meminfo: memFree=1395096/2055920 swapFree=4178796/4192956
[pid=25681] ppid=25679 vsize=968 CPUtime=0
/proc/25681/stat : 25681 (march_nn) R 25679 25681 25073 0 -1 4194304 144 0 0 0 0 0 0 0 18 0 1 0 1145024880 991232 129 1992294400 134512640 135197250 4294956240 18446744073709551615 134850818 0 0 4096 0 0 0 0 17 1 0 0
/proc/25681/statm: 242 129 58 167 0 73 0

[startup+0.073558 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 25681
/proc/meminfo: memFree=1395096/2055920 swapFree=4178796/4192956
[pid=25681] ppid=25679 vsize=4340 CPUtime=0.06
/proc/25681/stat : 25681 (march_nn) R 25679 25681 25073 0 -1 4194304 596 0 0 0 6 0 0 0 18 0 1 0 1145024880 4444160 577 1992294400 134512640 135197250 4294956240 18446744073709551615 134697286 0 0 4096 0 0 0 0 17 1 0 0
/proc/25681/statm: 1085 577 93 167 0 916 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 4340

[startup+0.10156 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 25681
/proc/meminfo: memFree=1395096/2055920 swapFree=4178796/4192956
[pid=25681] ppid=25679 vsize=4472 CPUtime=0.09
/proc/25681/stat : 25681 (march_nn) R 25679 25681 25073 0 -1 4194304 624 0 0 0 9 0 0 0 18 0 1 0 1145024880 4579328 605 1992294400 134512640 135197250 4294956240 18446744073709551615 134697286 0 0 4096 0 0 0 0 17 1 0 0
/proc/25681/statm: 1118 605 93 167 0 949 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4472

[startup+0.301577 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 25681
/proc/meminfo: memFree=1395096/2055920 swapFree=4178796/4192956
[pid=25681] ppid=25679 vsize=4644 CPUtime=0.29
/proc/25681/stat : 25681 (march_nn) R 25679 25681 25073 0 -1 4194304 662 0 0 0 29 0 0 0 19 0 1 0 1145024880 4755456 643 1992294400 134512640 135197250 4294956240 18446744073709551615 134525363 0 0 4096 0 0 0 0 17 1 0 0
/proc/25681/statm: 1161 643 93 167 0 992 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4644

[startup+0.701613 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 25681
/proc/meminfo: memFree=1395096/2055920 swapFree=4178796/4192956
[pid=25681] ppid=25679 vsize=4776 CPUtime=0.69
/proc/25681/stat : 25681 (march_nn) R 25679 25681 25073 0 -1 4194304 684 0 0 0 69 0 0 0 22 0 1 0 1145024880 4890624 664 1992294400 134512640 135197250 4294956240 18446744073709551615 134552722 0 0 4096 0 0 0 0 17 1 0 0
/proc/25681/statm: 1194 664 93 167 0 1025 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4776

[startup+1.50168 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 25682
/proc/meminfo: memFree=1392720/2055920 swapFree=4178796/4192956
[pid=25681] ppid=25679 vsize=4776 CPUtime=1.49
/proc/25681/stat : 25681 (march_nn) R 25679 25681 25073 0 -1 4194304 692 0 0 0 149 0 0 0 25 0 1 0 1145024880 4890624 672 1992294400 134512640 135197250 4294956240 18446744073709551615 134525324 0 0 4096 0 0 0 0 17 1 0 0
/proc/25681/statm: 1194 672 93 167 0 1025 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4776

[startup+3.10182 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 25682
/proc/meminfo: memFree=1392464/2055920 swapFree=4178796/4192956
[pid=25681] ppid=25679 vsize=4924 CPUtime=3.09
/proc/25681/stat : 25681 (march_nn) R 25679 25681 25073 0 -1 4194304 734 0 0 0 309 0 0 0 25 0 1 0 1145024880 5042176 714 1992294400 134512640 135197250 4294956240 18446744073709551615 134539266 0 0 4096 0 0 0 0 17 1 0 0
/proc/25681/statm: 1231 714 93 167 0 1062 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 4924

[startup+6.3011 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 25682
/proc/meminfo: memFree=1392208/2055920 swapFree=4178796/4192956
[pid=25681] ppid=25679 vsize=5152 CPUtime=6.29
/proc/25681/stat : 25681 (march_nn) R 25679 25681 25073 0 -1 4194304 801 0 0 0 629 0 0 0 25 0 1 0 1145024880 5275648 769 1992294400 134512640 135197250 4294956240 18446744073709551615 134572904 0 0 4096 0 0 0 0 17 1 0 0
/proc/25681/statm: 1288 769 93 167 0 1119 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 5152

[startup+12.7017 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 25682
/proc/meminfo: memFree=1391896/2055920 swapFree=4178796/4192956
[pid=25681] ppid=25679 vsize=5400 CPUtime=12.69
/proc/25681/stat : 25681 (march_nn) R 25679 25681 25073 0 -1 4194304 846 0 0 0 1269 0 0 0 25 0 1 0 1145024880 5529600 814 1992294400 134512640 135197250 4294956240 18446744073709551615 134539306 0 0 4096 0 0 0 0 17 1 0 0
/proc/25681/statm: 1350 814 93 167 0 1181 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 5400

[startup+25.5018 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 25682
/proc/meminfo: memFree=1391576/2055920 swapFree=4178796/4192956
[pid=25681] ppid=25679 vsize=6144 CPUtime=25.48
/proc/25681/stat : 25681 (march_nn) R 25679 25681 25073 0 -1 4194304 925 0 0 0 2548 0 0 0 25 0 1 0 1145024880 6291456 893 1992294400 134512640 135197250 4294956240 18446744073709551615 134541260 0 0 4096 0 0 0 0 17 1 0 0
/proc/25681/statm: 1536 893 93 167 0 1367 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 6144

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

[startup+25.7018 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 25682
/proc/meminfo: memFree=1391576/2055920 swapFree=4178796/4192956
[pid=25681] ppid=25679 vsize=6144 CPUtime=25.69
/proc/25681/stat : 25681 (march_nn) R 25679 25681 25073 0 -1 4194304 927 0 0 0 2568 1 0 0 25 0 1 0 1145024880 6291456 895 1992294400 134512640 135197250 4294956240 18446744073709551615 134597423 0 0 4096 0 0 0 0 17 1 0 0
/proc/25681/statm: 1536 895 93 167 0 1367 0
Current children cumulated CPU time (s) 25.69
Current children cumulated vsize (KiB) 6144

[startup+25.8018 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 25682
/proc/meminfo: memFree=1391576/2055920 swapFree=4178796/4192956
[pid=25681] ppid=25679 vsize=6144 CPUtime=25.79
/proc/25681/stat : 25681 (march_nn) R 25679 25681 25073 0 -1 4194304 927 0 0 0 2578 1 0 0 25 0 1 0 1145024880 6291456 895 1992294400 134512640 135197250 4294956240 18446744073709551615 134552420 0 0 4096 0 0 0 0 17 1 0 0
/proc/25681/statm: 1536 895 93 167 0 1367 0
Current children cumulated CPU time (s) 25.79
Current children cumulated vsize (KiB) 6144

Child status: 20
Real time (s): 25.8877
CPU time (s): 25.8741
CPU user time (s): 25.8631
CPU system time (s): 0.010998
CPU usage (%): 99.9472
Max. virtual memory (cumulated for all children) (KiB): 6144

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 25.8631
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 928
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= 227

runsolver used 0.034994 second user time and 0.069989 second system time

The end

Launcher Data 

Begin job on node57 at 2009-04-03 03:53:51
IDJOB=1554105
IDBENCH=70774
IDSOLVER=522
FILE ID=node57/1554105-1238723631
PBS_JOBID= 9085285
Free space on /tmp= 66264 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/APPLICATIONS/bitverif/countbitsrotate/countbitsrotate016.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1554105-1238723631/watcher-1554105-1238723631 -o /tmp/evaluation-result-1554105-1238723631/solver-1554105-1238723631 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1554105-1238723631.cnf

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

MD5SUM BENCH= cb3e934c498918abbc8bcf7f964c0d21
RANDOM SEED=263946941

node57.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		: 3000.213
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		: 3000.213
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:       1395512 kB
Buffers:         97216 kB
Cached:         464700 kB
SwapCached:       7992 kB
Active:         282576 kB
Inactive:       288808 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1395512 kB
SwapTotal:     4192956 kB
SwapFree:      4178796 kB
Dirty:             856 kB
Writeback:           0 kB
Mapped:          15160 kB
Slab:            75120 kB
Committed_AS:  2875096 kB
PageTables:       1392 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= 66264 MiB
End job on node57 at 2009-04-03 03:54:17