Trace number 1517857

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_hi hiUNSAT 14.8607 14.8768

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 |****************************************************************| ( 0/12) NodeCount: 120
0.00/0.06	c |----------------------------------------------------------------|
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c |****************************************************************| ( 1/12) NodeCount: 1114
0.39/0.45	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/12) NodeCount: 4482
1.79/1.80	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/12) NodeCount: 11130
4.49/4.51	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/12) NodeCount: 19233
8.08/8.12	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/12) NodeCount: 25833
11.18/11.23	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/12) NodeCount: 29829
13.27/13.34	c |----------------------------------------------------------------|
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c |****************************************************************| ( 7/12) NodeCount: 31687
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14.77/14.87	c |----------------------------------------------------------------|
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c |****************************************************************| (11/12) NodeCount: 32382
14.77/14.87	c |----------------------------------------------------------------|
c |
14.77/14.87	c
14.77/14.87	c main():: nodeCount: 32382
14.77/14.87	c main():: dead ends in main: 353
14.77/14.87	c main():: lookAheadCount: 2434502
14.77/14.87	c main():: unitResolveCount: 288744
14.77/14.87	c main():: time=14.850000
14.77/14.87	c main():: necessary_assignments: 4903
14.77/14.87	c main():: bin_sat: 0, bin_unsat 0
14.77/14.87	c main():: doublelook: #: 134160, succes #: 98259
14.77/14.87	c main():: doublelook: overall 5.678 of all possible doublelooks executed
14.77/14.87	c main():: doublelook: succesrate: 73.240, average DL_trigger: 50.913
14.77/14.87	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-1517857-1238292142/watcher-1517857-1238292142 -o /tmp/evaluation-result-1517857-1238292142/solver-1517857-1238292142 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1517857-1238292142.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: 1.06 1.02 1.00 3/64 5162
/proc/meminfo: memFree=1080320/2055920 swapFree=4179868/4192956
[pid=5162] ppid=5160 vsize=972 CPUtime=0
/proc/5162/stat : 5162 (march_hi) R 5160 5162 4395 0 -1 4194304 138 0 0 0 0 0 0 0 18 0 1 0 706106635 995328 121 1992294400 134512640 135197378 4294956240 18446744073709551615 134528032 0 0 4096 0 0 0 0 17 0 0 0
/proc/5162/statm: 243 121 67 167 0 74 0

[startup+0.0775369 s]
/proc/loadavg: 1.06 1.02 1.00 3/64 5162
/proc/meminfo: memFree=1080320/2055920 swapFree=4179868/4192956
[pid=5162] ppid=5160 vsize=1536 CPUtime=0.07
/proc/5162/stat : 5162 (march_hi) R 5160 5162 4395 0 -1 4194304 248 0 0 0 7 0 0 0 18 0 1 0 706106635 1572864 231 1992294400 134512640 135197378 4294956240 18446744073709551615 134525333 0 0 4096 0 0 0 0 17 0 0 0
/proc/5162/statm: 384 231 91 167 0 215 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1536

[startup+0.101539 s]
/proc/loadavg: 1.06 1.02 1.00 3/64 5162
/proc/meminfo: memFree=1080320/2055920 swapFree=4179868/4192956
[pid=5162] ppid=5160 vsize=1536 CPUtime=0.1
/proc/5162/stat : 5162 (march_hi) R 5160 5162 4395 0 -1 4194304 250 0 0 0 10 0 0 0 18 0 1 0 706106635 1572864 233 1992294400 134512640 135197378 4294956240 18446744073709551615 134539261 0 0 4096 0 0 0 0 17 0 0 0
/proc/5162/statm: 384 233 91 167 0 215 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1536

[startup+0.301568 s]
/proc/loadavg: 1.06 1.02 1.00 3/64 5162
/proc/meminfo: memFree=1080320/2055920 swapFree=4179868/4192956
[pid=5162] ppid=5160 vsize=1536 CPUtime=0.29
/proc/5162/stat : 5162 (march_hi) R 5160 5162 4395 0 -1 4194304 257 0 0 0 29 0 0 0 19 0 1 0 706106635 1572864 240 1992294400 134512640 135197378 4294956240 18446744073709551615 134542050 0 0 4096 0 0 0 0 17 0 0 0
/proc/5162/statm: 384 240 91 167 0 215 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1536

[startup+0.701625 s]
/proc/loadavg: 1.06 1.02 1.00 3/64 5162
/proc/meminfo: memFree=1080320/2055920 swapFree=4179868/4192956
[pid=5162] ppid=5160 vsize=1672 CPUtime=0.69
/proc/5162/stat : 5162 (march_hi) R 5160 5162 4395 0 -1 4194304 263 0 0 0 69 0 0 0 23 0 1 0 706106635 1712128 246 1992294400 134512640 135197378 4294956240 18446744073709551615 134542433 0 0 4096 0 0 0 0 17 0 0 0
/proc/5162/statm: 418 246 91 167 0 249 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1672

[startup+1.50174 s]
/proc/loadavg: 1.06 1.02 1.00 2/65 5163
/proc/meminfo: memFree=1079672/2055920 swapFree=4179868/4192956
[pid=5162] ppid=5160 vsize=1672 CPUtime=1.49
/proc/5162/stat : 5162 (march_hi) R 5160 5162 4395 0 -1 4194304 273 0 0 0 149 0 0 0 25 0 1 0 706106635 1712128 256 1992294400 134512640 135197378 4294956240 18446744073709551615 134539158 0 0 4096 0 0 0 0 17 0 0 0
/proc/5162/statm: 418 256 91 167 0 249 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1672

[startup+3.10196 s]
/proc/loadavg: 1.06 1.02 1.00 2/65 5163
/proc/meminfo: memFree=1079480/2055920 swapFree=4179868/4192956
[pid=5162] ppid=5160 vsize=1672 CPUtime=3.09
/proc/5162/stat : 5162 (march_hi) R 5160 5162 4395 0 -1 4194304 281 0 0 0 309 0 0 0 25 0 1 0 706106635 1712128 264 1992294400 134512640 135197378 4294956240 18446744073709551615 134539261 0 0 4096 0 0 0 0 17 0 0 0
/proc/5162/statm: 418 264 91 167 0 249 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1672

[startup+6.30142 s]
/proc/loadavg: 1.06 1.01 1.00 2/65 5163
/proc/meminfo: memFree=1079352/2055920 swapFree=4179868/4192956
[pid=5162] ppid=5160 vsize=1812 CPUtime=6.28
/proc/5162/stat : 5162 (march_hi) R 5160 5162 4395 0 -1 4194304 295 0 0 0 628 0 0 0 25 0 1 0 706106635 1855488 278 1992294400 134512640 135197378 4294956240 18446744073709551615 134525346 0 0 4096 0 0 0 0 17 1 0 0
/proc/5162/statm: 453 278 91 167 0 284 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 1812

[startup+12.7013 s]
/proc/loadavg: 1.05 1.01 1.00 2/65 5163
/proc/meminfo: memFree=1079224/2055920 swapFree=4179868/4192956
[pid=5162] ppid=5160 vsize=1812 CPUtime=12.68
/proc/5162/stat : 5162 (march_hi) R 5160 5162 4395 0 -1 4194304 312 0 0 0 1268 0 0 0 25 0 1 0 706106635 1855488 295 1992294400 134512640 135197378 4294956240 18446744073709551615 134525351 0 0 4096 0 0 0 0 17 0 0 0
/proc/5162/statm: 453 295 91 167 0 284 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 1812

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

[startup+13.5014 s]
/proc/loadavg: 1.05 1.01 1.00 2/65 5163
/proc/meminfo: memFree=1079224/2055920 swapFree=4179868/4192956
[pid=5162] ppid=5160 vsize=1812 CPUtime=13.47
/proc/5162/stat : 5162 (march_hi) R 5160 5162 4395 0 -1 4194304 315 0 0 0 1347 0 0 0 25 0 1 0 706106635 1855488 298 1992294400 134512640 135197378 4294956240 18446744073709551615 134552743 0 0 4096 0 0 0 0 17 0 0 0
/proc/5162/statm: 453 298 91 167 0 284 0
Current children cumulated CPU time (s) 13.47
Current children cumulated vsize (KiB) 1812

[startup+14.3066 s]
/proc/loadavg: 1.05 1.01 1.00 2/65 5163
/proc/meminfo: memFree=1079224/2055920 swapFree=4179868/4192956
[pid=5162] ppid=5160 vsize=1812 CPUtime=14.28
/proc/5162/stat : 5162 (march_hi) R 5160 5162 4395 0 -1 4194304 319 0 0 0 1428 0 0 0 25 0 1 0 706106635 1855488 302 1992294400 134512640 135197378 4294956240 18446744073709551615 134525315 0 0 4096 0 0 0 0 17 0 0 0
/proc/5162/statm: 453 302 91 167 0 284 0
Current children cumulated CPU time (s) 14.28
Current children cumulated vsize (KiB) 1812

[startup+14.7016 s]
/proc/loadavg: 1.05 1.01 1.00 2/65 5163
/proc/meminfo: memFree=1079224/2055920 swapFree=4179868/4192956
[pid=5162] ppid=5160 vsize=2016 CPUtime=14.67
/proc/5162/stat : 5162 (march_hi) R 5160 5162 4395 0 -1 4194304 354 0 0 0 1467 0 0 0 25 0 1 0 706106635 2064384 337 1992294400 134512640 135197378 4294956240 18446744073709551615 134525348 0 0 4096 0 0 0 0 17 0 0 0
/proc/5162/statm: 504 337 91 167 0 335 0
Current children cumulated CPU time (s) 14.67
Current children cumulated vsize (KiB) 2016

[startup+14.8016 s]
/proc/loadavg: 1.05 1.01 1.00 2/65 5163
/proc/meminfo: memFree=1079224/2055920 swapFree=4179868/4192956
[pid=5162] ppid=5160 vsize=2016 CPUtime=14.77
/proc/5162/stat : 5162 (march_hi) R 5160 5162 4395 0 -1 4194304 355 0 0 0 1477 0 0 0 25 0 1 0 706106635 2064384 338 1992294400 134512640 135197378 4294956240 18446744073709551615 134552468 0 0 4096 0 0 0 0 17 0 0 0
/proc/5162/statm: 504 338 91 167 0 335 0
Current children cumulated CPU time (s) 14.77
Current children cumulated vsize (KiB) 2016

Child status: 20
Real time (s): 14.8768
CPU time (s): 14.8607
CPU user time (s): 14.8537
CPU system time (s): 0.006998
CPU usage (%): 99.8923
Max. virtual memory (cumulated for all children) (KiB): 2016

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 14.8537
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 358
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= 104

runsolver used 0.019996 second user time and 0.048992 second system time

The end

Launcher Data 

Begin job on node49 at 2009-03-29 04:02:22
IDJOB=1517857
IDBENCH=70631
IDSOLVER=521
FILE ID=node49/1517857-1238292142
PBS_JOBID= 9060981
Free space on /tmp= 66388 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/380/unif-k3-r4.25-v380-c1615-S2043187304-036.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1517857-1238292142/watcher-1517857-1238292142 -o /tmp/evaluation-result-1517857-1238292142/solver-1517857-1238292142 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1517857-1238292142.cnf

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

MD5SUM BENCH= 8f761d7a83f8ed9f2fb1562cef6a194f
RANDOM SEED=1359491614

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:       1080800 kB
Buffers:         96032 kB
Cached:         782128 kB
SwapCached:       6452 kB
Active:         225976 kB
Inactive:       661180 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1080800 kB
SwapTotal:     4192956 kB
SwapFree:      4179868 kB
Dirty:            3372 kB
Writeback:           0 kB
Mapped:          14676 kB
Slab:            73776 kB
Committed_AS:  1760732 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 04:02:37