Trace number 1517930

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 10.2364 10.2425

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/360/
unif-k3-r4.25-v360-c1530-S1028159446-096.cnf
MD5SUMa68afc9bf021c353745f280b16667e74
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark9.76151
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 0.423
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 152 duplicate clauses
0.00/0.01	c resolvent_look() :: found 109 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 360 variables and 1639 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 1639 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1639 / 360 ) = 4.55
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: 18
0.00/0.01	c |----------------------------------------------------------------|
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0.00/0.06	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/999) NodeCount: 913
0.30/0.30	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/999) NodeCount: 3180
1.10/1.15	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/999) NodeCount: 7675
3.09/3.17	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/999) NodeCount: 13211
5.99/6.07	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/999) NodeCount: 17412
8.49/8.52	c |----------------------------------------------------------------|
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c |****************************************************************| ( 7/999) NodeCount: 19394
9.69/9.76	c |----------------------------------------------------------------|
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10.09/10.16	c |----------------------------------------------------------------|
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c |****************************************************************| ( 9/999) NodeCount: 20095
10.19/10.23	c |----------------------------------------------------------------|
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c |****************************************************************| (10/999) NodeCount: 20103
10.19/10.24	c |----------------------------------------------------------------|
c |
10.19/10.24	c
10.19/10.24	c main():: nodeCount: 20103
10.19/10.24	c main():: dead ends in main: 301
10.19/10.24	c main():: lookAheadCount: 1606420
10.19/10.24	c main():: unitResolveCount: 292972
10.19/10.24	c main():: time=10.230000
10.19/10.24	c main():: necessary_assignments: 3647
10.19/10.24	c main():: bin_sat: 0, bin_unsat 0
10.19/10.24	c main():: doublelook: #: 85655, succes #: 63069
10.19/10.24	c main():: doublelook: overall 5.489 of all possible doublelooks executed
10.19/10.24	c main():: doublelook: succesrate: 73.631, average DL_trigger: 48.793
10.19/10.24	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-1517930-1238293071/watcher-1517930-1238293071 -o /tmp/evaluation-result-1517930-1238293071/solver-1517930-1238293071 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1517930-1238293071.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: 0.92 0.97 0.99 3/64 11868
/proc/meminfo: memFree=1221192/2055920 swapFree=4176920/4192956
[pid=11868] ppid=11866 vsize=972 CPUtime=0
/proc/11868/stat : 11868 (march_nn) R 11866 11868 11090 0 -1 4194304 148 0 0 0 0 0 0 0 18 0 1 0 1101971994 995328 131 1992294400 134512640 135197250 4294956240 18446744073709551615 134618960 0 0 4096 0 0 0 0 17 0 0 0
/proc/11868/statm: 243 131 80 167 0 74 0

[startup+0.106989 s]
/proc/loadavg: 0.92 0.97 0.99 3/64 11868
/proc/meminfo: memFree=1221192/2055920 swapFree=4176920/4192956
[pid=11868] ppid=11866 vsize=1512 CPUtime=0.1
/proc/11868/stat : 11868 (march_nn) R 11866 11868 11090 0 -1 4194304 243 0 0 0 10 0 0 0 18 0 1 0 1101971994 1548288 226 1992294400 134512640 135197250 4294956240 18446744073709551615 134542045 0 0 4096 0 0 0 0 17 0 0 0
/proc/11868/statm: 378 226 93 167 0 209 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1512

[startup+0.202999 s]
/proc/loadavg: 0.92 0.97 0.99 3/64 11868
/proc/meminfo: memFree=1221192/2055920 swapFree=4176920/4192956
[pid=11868] ppid=11866 vsize=1512 CPUtime=0.2
/proc/11868/stat : 11868 (march_nn) R 11866 11868 11090 0 -1 4194304 248 0 0 0 20 0 0 0 18 0 1 0 1101971994 1548288 231 1992294400 134512640 135197250 4294956240 18446744073709551615 134525351 0 0 4096 0 0 0 0 17 0 0 0
/proc/11868/statm: 378 231 93 167 0 209 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 1512

[startup+0.303009 s]
/proc/loadavg: 0.92 0.97 0.99 3/64 11868
/proc/meminfo: memFree=1221192/2055920 swapFree=4176920/4192956
[pid=11868] ppid=11866 vsize=1512 CPUtime=0.3
/proc/11868/stat : 11868 (march_nn) R 11866 11868 11090 0 -1 4194304 255 0 0 0 30 0 0 0 19 0 1 0 1101971994 1548288 238 1992294400 134512640 135197250 4294956240 18446744073709551615 134525339 0 0 4096 0 0 0 0 17 0 0 0
/proc/11868/statm: 378 238 93 167 0 209 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1512

[startup+0.702054 s]
/proc/loadavg: 0.92 0.97 0.99 3/64 11868
/proc/meminfo: memFree=1221192/2055920 swapFree=4176920/4192956
[pid=11868] ppid=11866 vsize=1644 CPUtime=0.69
/proc/11868/stat : 11868 (march_nn) R 11866 11868 11090 0 -1 4194304 271 0 0 0 69 0 0 0 23 0 1 0 1101971994 1683456 254 1992294400 134512640 135197250 4294956240 18446744073709551615 134541962 0 0 4096 0 0 0 0 17 0 0 0
/proc/11868/statm: 411 254 93 167 0 242 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1644

[startup+1.50114 s]
/proc/loadavg: 0.92 0.97 0.99 2/65 11869
/proc/meminfo: memFree=1220416/2055920 swapFree=4176920/4192956
[pid=11868] ppid=11866 vsize=1812 CPUtime=1.49
/proc/11868/stat : 11868 (march_nn) R 11866 11868 11090 0 -1 4194304 302 0 0 0 149 0 0 0 25 0 1 0 1101971994 1855488 285 1992294400 134512640 135197250 4294956240 18446744073709551615 134542117 0 0 4096 0 0 0 0 17 0 0 0
/proc/11868/statm: 453 285 93 167 0 284 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1812

[startup+3.10132 s]
/proc/loadavg: 0.92 0.97 0.99 2/65 11869
/proc/meminfo: memFree=1220160/2055920 swapFree=4176920/4192956
[pid=11868] ppid=11866 vsize=1812 CPUtime=3.09
/proc/11868/stat : 11868 (march_nn) R 11866 11868 11090 0 -1 4194304 324 0 0 0 309 0 0 0 25 0 1 0 1101971994 1855488 307 1992294400 134512640 135197250 4294956240 18446744073709551615 134552514 0 0 4096 0 0 0 0 17 0 0 0
/proc/11868/statm: 453 307 93 167 0 284 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1812

[startup+6.30168 s]
/proc/loadavg: 0.93 0.97 0.99 2/65 11869
/proc/meminfo: memFree=1219776/2055920 swapFree=4176920/4192956
[pid=11868] ppid=11866 vsize=2460 CPUtime=6.29
/proc/11868/stat : 11868 (march_nn) R 11866 11868 11090 0 -1 4194304 427 0 0 0 629 0 0 0 25 0 1 0 1101971994 2519040 410 1992294400 134512640 135197250 4294956240 18446744073709551615 134526663 0 0 4096 0 0 0 0 17 0 0 0
/proc/11868/statm: 615 410 93 167 0 446 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2460

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

[startup+6.40169 s]
/proc/loadavg: 0.93 0.97 0.99 2/65 11869
/proc/meminfo: memFree=1219776/2055920 swapFree=4176920/4192956
[pid=11868] ppid=11866 vsize=2460 CPUtime=6.39
/proc/11868/stat : 11868 (march_nn) R 11866 11868 11090 0 -1 4194304 428 0 0 0 639 0 0 0 25 0 1 0 1101971994 2519040 411 1992294400 134512640 135197250 4294956240 18446744073709551615 134525346 0 0 4096 0 0 0 0 17 0 0 0
/proc/11868/statm: 615 411 93 167 0 446 0
Current children cumulated CPU time (s) 6.39
Current children cumulated vsize (KiB) 2460

[startup+8.00187 s]
/proc/loadavg: 0.93 0.97 0.99 2/65 11869
/proc/meminfo: memFree=1219648/2055920 swapFree=4176920/4192956
[pid=11868] ppid=11866 vsize=2460 CPUtime=7.99
/proc/11868/stat : 11868 (march_nn) R 11866 11868 11090 0 -1 4194304 449 0 0 0 799 0 0 0 25 0 1 0 1101971994 2519040 432 1992294400 134512640 135197250 4294956240 18446744073709551615 134552619 0 0 4096 0 0 0 0 17 0 0 0
/proc/11868/statm: 615 432 93 167 0 446 0
Current children cumulated CPU time (s) 7.99
Current children cumulated vsize (KiB) 2460

[startup+9.60205 s]
/proc/loadavg: 0.93 0.97 0.99 2/65 11869
/proc/meminfo: memFree=1219648/2055920 swapFree=4176920/4192956
[pid=11868] ppid=11866 vsize=2460 CPUtime=9.59
/proc/11868/stat : 11868 (march_nn) R 11866 11868 11090 0 -1 4194304 467 0 0 0 959 0 0 0 25 0 1 0 1101971994 2519040 450 1992294400 134512640 135197250 4294956240 18446744073709551615 134542043 0 0 4096 0 0 0 0 17 0 0 0
/proc/11868/statm: 615 450 93 167 0 446 0
Current children cumulated CPU time (s) 9.59
Current children cumulated vsize (KiB) 2460

[startup+10.0051 s]
/proc/loadavg: 0.93 0.97 0.99 2/65 11869
/proc/meminfo: memFree=1219584/2055920 swapFree=4176920/4192956
[pid=11868] ppid=11866 vsize=2688 CPUtime=9.99
/proc/11868/stat : 11868 (march_nn) R 11866 11868 11090 0 -1 4194304 471 0 0 0 999 0 0 0 25 0 1 0 1101971994 2752512 454 1992294400 134512640 135197250 4294956240 18446744073709551615 134539253 0 0 4096 0 0 0 0 17 0 0 0
/proc/11868/statm: 672 454 93 167 0 503 0
Current children cumulated CPU time (s) 9.99
Current children cumulated vsize (KiB) 2688

[startup+10.2011 s]
/proc/loadavg: 0.93 0.97 0.99 2/65 11869
/proc/meminfo: memFree=1219584/2055920 swapFree=4176920/4192956
[pid=11868] ppid=11866 vsize=2688 CPUtime=10.19
/proc/11868/stat : 11868 (march_nn) R 11866 11868 11090 0 -1 4194304 473 0 0 0 1019 0 0 0 25 0 1 0 1101971994 2752512 456 1992294400 134512640 135197250 4294956240 18446744073709551615 134539195 0 0 4096 0 0 0 0 17 0 0 0
/proc/11868/statm: 672 456 93 167 0 503 0
Current children cumulated CPU time (s) 10.19
Current children cumulated vsize (KiB) 2688

Child status: 20
Real time (s): 10.2425
CPU time (s): 10.2364
CPU user time (s): 10.2344
CPU system time (s): 0.001999
CPU usage (%): 99.941
Max. virtual memory (cumulated for all children) (KiB): 2688

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 10.2344
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 475
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= 34

runsolver used 0.025996 second user time and 0.032994 second system time

The end

Launcher Data 

Begin job on node35 at 2009-03-29 04:17:51
IDJOB=1517930
IDBENCH=70637
IDSOLVER=522
FILE ID=node35/1517930-1238293071
PBS_JOBID= 9061003
Free space on /tmp= 66504 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/360/unif-k3-r4.25-v360-c1530-S1028159446-096.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1517930-1238293071/watcher-1517930-1238293071 -o /tmp/evaluation-result-1517930-1238293071/solver-1517930-1238293071 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1517930-1238293071.cnf

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

MD5SUM BENCH= a68afc9bf021c353745f280b16667e74
RANDOM SEED=967973647

node35.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:       1221672 kB
Buffers:         99204 kB
Cached:         641008 kB
SwapCached:      10236 kB
Active:         202340 kB
Inactive:       549808 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1221672 kB
SwapTotal:     4192956 kB
SwapFree:      4176920 kB
Dirty:             784 kB
Writeback:           0 kB
Mapped:          17584 kB
Slab:            68132 kB
Committed_AS:  2637044 kB
PageTables:       1404 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= 66504 MiB
End job on node35 at 2009-03-29 04:18:01