Trace number 1628172

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 29.5125 29.5266

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/380/
unif-k3-r4.25-v380-c1615-S1700363952-014.cnf
MD5SUM29b15a76839bb4e367777518dfae2822
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark29.5125
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, 10 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 378 free variables and 1605 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.508
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 171 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 1704 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 1704 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1704 / 380 ) = 4.48
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 = 378
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 |****************************************************************| ( 0/14) NodeCount: 132
0.03/0.07	c |----------------------------------------------------------------|
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c |****************************************************************| ( 1/14) NodeCount: 863
0.29/0.38	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/14) NodeCount: 3801
1.59/1.65	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/14) NodeCount: 11055
4.79/4.84	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/14) NodeCount: 23624
10.49/10.56	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/14) NodeCount: 38402
17.39/17.46	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/14) NodeCount: 50781
23.68/23.80	c |----------------------------------------------------------------|
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c |****************************************************************| ( 7/14) NodeCount: 57748
27.68/27.76	c |----------------------------------------------------------------|
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c |****************************************************************| ( 8/14) NodeCount: 60023
29.18/29.22	c |----------------------------------------------------------------|
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c |****************************************************************| ( 9/14) NodeCount: 60418
29.38/29.49	c |----------------------------------------------------------------|
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c |****************************************************************| (10/14) NodeCount: 60455
29.48/29.52	c |----------------------------------------------------------------|
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c |****************************************************************| (11/14) NodeCount: 60457
29.48/29.52	c |----------------------------------------------------------------|
c |
29.48/29.52	c
29.48/29.52	c main():: nodeCount: 60457
29.48/29.52	c main():: dead ends in main: 1105
29.48/29.52	c main():: lookAheadCount: 4217444
29.48/29.52	c main():: unitResolveCount: 646774
29.48/29.52	c main():: time=29.510000
29.48/29.52	c main():: necessary_assignments: 11804
29.48/29.52	c main():: bin_sat: 0, bin_unsat 0
29.48/29.52	c main():: doublelook: #: 243339, succes #: 176589
29.48/29.52	c main():: doublelook: overall 5.965 of all possible doublelooks executed
29.48/29.52	c main():: doublelook: succesrate: 72.569, average DL_trigger: 48.762
29.48/29.52	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-1628172-1240135703/watcher-1628172-1240135703 -o /tmp/evaluation-result-1628172-1240135703/solver-1628172-1240135703 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1628172-1240135703.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 6000 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 1.00 1.00 3/64 25505
/proc/meminfo: memFree=858880/2055920 swapFree=4192956/4192956
[pid=25505] ppid=25503 vsize=972 CPUtime=0
/proc/25505/stat : 25505 (march_hi) R 25503 25505 25386 0 -1 4194304 137 0 0 0 0 0 0 0 18 0 1 0 41597831 995328 120 1992294400 134512640 135197378 4294956240 18446744073709551615 134535888 0 0 4096 0 0 0 0 17 1 0 0
/proc/25505/statm: 243 120 66 167 0 74 0

[startup+0.037854 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25505
/proc/meminfo: memFree=858880/2055920 swapFree=4192956/4192956
[pid=25505] ppid=25503 vsize=1536 CPUtime=0.03
/proc/25505/stat : 25505 (march_hi) R 25503 25505 25386 0 -1 4194304 244 0 0 0 3 0 0 0 18 0 1 0 41597831 1572864 227 1992294400 134512640 135197378 4294956240 18446744073709551615 134552646 0 0 4096 0 0 0 0 17 1 0 0
/proc/25505/statm: 384 227 91 167 0 215 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1536

[startup+0.101848 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25505
/proc/meminfo: memFree=858880/2055920 swapFree=4192956/4192956
[pid=25505] ppid=25503 vsize=1536 CPUtime=0.09
/proc/25505/stat : 25505 (march_hi) R 25503 25505 25386 0 -1 4194304 251 0 0 0 9 0 0 0 18 0 1 0 41597831 1572864 234 1992294400 134512640 135197378 4294956240 18446744073709551615 134542165 0 0 4096 0 0 0 0 17 1 0 0
/proc/25505/statm: 384 234 91 167 0 215 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1536

[startup+0.30187 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25505
/proc/meminfo: memFree=858880/2055920 swapFree=4192956/4192956
[pid=25505] ppid=25503 vsize=1668 CPUtime=0.29
/proc/25505/stat : 25505 (march_hi) R 25503 25505 25386 0 -1 4194304 261 0 0 0 29 0 0 0 19 0 1 0 41597831 1708032 244 1992294400 134512640 135197378 4294956240 18446744073709551615 134542026 0 0 4096 0 0 0 0 17 1 0 0
/proc/25505/statm: 417 244 91 167 0 248 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1668

[startup+0.701915 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25505
/proc/meminfo: memFree=858880/2055920 swapFree=4192956/4192956
[pid=25505] ppid=25503 vsize=1668 CPUtime=0.69
/proc/25505/stat : 25505 (march_hi) R 25503 25505 25386 0 -1 4194304 269 0 0 0 69 0 0 0 22 0 1 0 41597831 1708032 252 1992294400 134512640 135197378 4294956240 18446744073709551615 134539266 0 0 4096 0 0 0 0 17 1 0 0
/proc/25505/statm: 417 252 91 167 0 248 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1668

[startup+1.50201 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25506
/proc/meminfo: memFree=858168/2055920 swapFree=4192956/4192956
[pid=25505] ppid=25503 vsize=1668 CPUtime=1.49
/proc/25505/stat : 25505 (march_hi) R 25503 25505 25386 0 -1 4194304 279 0 0 0 149 0 0 0 25 0 1 0 41597831 1708032 262 1992294400 134512640 135197378 4294956240 18446744073709551615 134539274 0 0 4096 0 0 0 0 17 1 0 0
/proc/25505/statm: 417 262 91 167 0 248 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1668

[startup+3.10119 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25506
/proc/meminfo: memFree=857976/2055920 swapFree=4192956/4192956
[pid=25505] ppid=25503 vsize=1668 CPUtime=3.09
/proc/25505/stat : 25505 (march_hi) R 25503 25505 25386 0 -1 4194304 290 0 0 0 309 0 0 0 25 0 1 0 41597831 1708032 273 1992294400 134512640 135197378 4294956240 18446744073709551615 134548481 0 0 4096 0 0 0 0 17 1 0 0
/proc/25505/statm: 417 273 91 167 0 248 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1668

[startup+6.30155 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25506
/proc/meminfo: memFree=857848/2055920 swapFree=4192956/4192956
[pid=25505] ppid=25503 vsize=1848 CPUtime=6.29
/proc/25505/stat : 25505 (march_hi) R 25503 25505 25386 0 -1 4194304 310 0 0 0 629 0 0 0 25 0 1 0 41597831 1892352 293 1992294400 134512640 135197378 4294956240 18446744073709551615 134539276 0 0 4096 0 0 0 0 17 1 0 0
/proc/25505/statm: 462 293 91 167 0 293 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1848

[startup+12.7013 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25506
/proc/meminfo: memFree=857528/2055920 swapFree=4192956/4192956
[pid=25505] ppid=25503 vsize=1992 CPUtime=12.69
/proc/25505/stat : 25505 (march_hi) R 25503 25505 25386 0 -1 4194304 364 0 0 0 1269 0 0 0 25 0 1 0 41597831 2039808 345 1992294400 134512640 135197378 4294956240 18446744073709551615 134525324 0 0 4096 0 0 0 0 17 1 0 0
/proc/25505/statm: 498 345 91 167 0 329 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1992

[startup+25.5017 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25506
/proc/meminfo: memFree=857336/2055920 swapFree=4192956/4192956
[pid=25505] ppid=25503 vsize=2244 CPUtime=25.48
/proc/25505/stat : 25505 (march_hi) R 25503 25505 25386 0 -1 4194304 416 0 0 0 2548 0 0 0 25 0 1 0 41597831 2297856 397 1992294400 134512640 135197378 4294956240 18446744073709551615 134525291 0 0 4096 0 0 0 0 17 1 0 0
/proc/25505/statm: 561 397 91 167 0 392 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 2244

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

[startup+27.1019 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25506
/proc/meminfo: memFree=857336/2055920 swapFree=4192956/4192956
[pid=25505] ppid=25503 vsize=2244 CPUtime=27.08
/proc/25505/stat : 25505 (march_hi) R 25503 25505 25386 0 -1 4194304 423 0 0 0 2708 0 0 0 25 0 1 0 41597831 2297856 404 1992294400 134512640 135197378 4294956240 18446744073709551615 134539261 0 0 4096 0 0 0 0 17 1 0 0
/proc/25505/statm: 561 404 91 167 0 392 0
Current children cumulated CPU time (s) 27.08
Current children cumulated vsize (KiB) 2244

[startup+28.7011 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25506
/proc/meminfo: memFree=857272/2055920 swapFree=4192956/4192956
[pid=25505] ppid=25503 vsize=2244 CPUtime=28.68
/proc/25505/stat : 25505 (march_hi) R 25503 25505 25386 0 -1 4194304 432 0 0 0 2868 0 0 0 25 0 1 0 41597831 2297856 413 1992294400 134512640 135197378 4294956240 18446744073709551615 134552516 0 0 4096 0 0 0 0 17 1 0 0
/proc/25505/statm: 561 413 91 167 0 392 0
Current children cumulated CPU time (s) 28.68
Current children cumulated vsize (KiB) 2244

[startup+29.1012 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25506
/proc/meminfo: memFree=857272/2055920 swapFree=4192956/4192956
[pid=25505] ppid=25503 vsize=2244 CPUtime=29.08
/proc/25505/stat : 25505 (march_hi) R 25503 25505 25386 0 -1 4194304 434 0 0 0 2908 0 0 0 25 0 1 0 41597831 2297856 415 1992294400 134512640 135197378 4294956240 18446744073709551615 134552934 0 0 4096 0 0 0 0 17 1 0 0
/proc/25505/statm: 561 415 91 167 0 392 0
Current children cumulated CPU time (s) 29.08
Current children cumulated vsize (KiB) 2244

[startup+29.5012 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25506
/proc/meminfo: memFree=857272/2055920 swapFree=4192956/4192956
[pid=25505] ppid=25503 vsize=2244 CPUtime=29.48
/proc/25505/stat : 25505 (march_hi) R 25503 25505 25386 0 -1 4194304 436 0 0 0 2948 0 0 0 25 0 1 0 41597831 2297856 417 1992294400 134512640 135197378 4294956240 18446744073709551615 134605243 0 0 4096 0 0 0 0 17 1 0 0
/proc/25505/statm: 561 417 91 167 0 392 0
Current children cumulated CPU time (s) 29.48
Current children cumulated vsize (KiB) 2244

Child status: 20
Real time (s): 29.5266
CPU time (s): 29.5125
CPU user time (s): 29.5055
CPU system time (s): 0.006998
CPU usage (%): 99.9522
Max. virtual memory (cumulated for all children) (KiB): 2244

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 29.5055
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= 439
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= 258

runsolver used 0.020996 second user time and 0.087986 second system time

The end

Launcher Data 

Begin job on node62 at 2009-04-19 12:08:23
IDJOB=1628172
IDBENCH=70628
IDSOLVER=583
FILE ID=node62/1628172-1240135703
PBS_JOBID= 9157826
Free space on /tmp= 66336 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/380/unif-k3-r4.25-v380-c1615-S1700363952-014.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1628172-1240135703/watcher-1628172-1240135703 -o /tmp/evaluation-result-1628172-1240135703/solver-1628172-1240135703 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1628172-1240135703.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 29b15a76839bb4e367777518dfae2822
RANDOM SEED=1590956790

node62.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		: 3000.220
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		: 3000.220
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:        859360 kB
Buffers:         89176 kB
Cached:        1003992 kB
SwapCached:          0 kB
Active:         381628 kB
Inactive:       726532 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        859360 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:             796 kB
Writeback:           0 kB
Mapped:          24720 kB
Slab:            74216 kB
Committed_AS:   189580 kB
PageTables:       1456 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= 66332 MiB
End job on node62 at 2009-04-19 12:08:52