Trace number 1628177

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 30.5144 30.5278

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/380/
unif-k3-r4.25-v380-c1615-S502087726-095.cnf
MD5SUM19585c969548ec91e42795356f5c76b1
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark30.5144
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 0.426
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 147 duplicate clauses
0.00/0.01	c resolvent_look() :: found 75 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 380 variables and 1690 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 1690 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1690 / 380 ) = 4.45
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 |****************************************************************| ( 0/14) NodeCount: 155
0.01/0.07	c |----------------------------------------------------------------|
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c |****************************************************************| ( 1/14) NodeCount: 1346
0.49/0.54	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/14) NodeCount: 5150
1.99/2.04	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/14) NodeCount: 14713
5.79/5.86	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/14) NodeCount: 29652
12.00/12.03	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/14) NodeCount: 45637
18.89/18.98	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/14) NodeCount: 58471
24.89/24.93	c |----------------------------------------------------------------|
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c |****************************************************************| ( 7/14) NodeCount: 65581
28.49/28.58	c |----------------------------------------------------------------|
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c |****************************************************************| ( 8/14) NodeCount: 68324
29.98/30.09	c |----------------------------------------------------------------|
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c |****************************************************************| ( 9/14) NodeCount: 68968
30.38/30.47	c |----------------------------------------------------------------|
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c |****************************************************************| (10/14) NodeCount: 69058
30.48/30.52	c |----------------------------------------------------------------|
c |********
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c |****************
c |********************************
c |****************************************************************| (11/14) NodeCount: 69059
30.48/30.52	c |----------------------------------------------------------------|
c |
30.48/30.52	c
30.48/30.52	c main():: nodeCount: 69059
30.48/30.52	c main():: dead ends in main: 1212
30.48/30.52	c main():: lookAheadCount: 4723889
30.48/30.52	c main():: unitResolveCount: 725198
30.48/30.52	c main():: time=30.510000
30.48/30.52	c main():: necessary_assignments: 12794
30.48/30.52	c main():: bin_sat: 0, bin_unsat 0
30.48/30.52	c main():: doublelook: #: 277049, succes #: 201156
30.48/30.52	c main():: doublelook: overall 6.063 of all possible doublelooks executed
30.48/30.52	c main():: doublelook: succesrate: 72.607, average DL_trigger: 48.433
30.48/30.52	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-1628177-1240137227/watcher-1628177-1240137227 -o /tmp/evaluation-result-1628177-1240137227/solver-1628177-1240137227 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1628177-1240137227.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: 0.85 0.97 0.99 3/65 25911
/proc/meminfo: memFree=1181792/2055920 swapFree=4192956/4192956
[pid=25911] ppid=25909 vsize=972 CPUtime=0
/proc/25911/stat : 25911 (march_hi) R 25909 25911 25874 0 -1 4194304 137 0 0 0 0 0 0 0 20 0 1 0 41752857 995328 120 1992294400 134512640 135197378 4294956240 18446744073709551615 134535888 0 0 4096 0 0 0 0 17 1 0 0
/proc/25911/statm: 243 120 66 167 0 74 0

[startup+0.0169559 s]
/proc/loadavg: 0.85 0.97 0.99 3/65 25911
/proc/meminfo: memFree=1181792/2055920 swapFree=4192956/4192956
[pid=25911] ppid=25909 vsize=1536 CPUtime=0.01
/proc/25911/stat : 25911 (march_hi) R 25909 25911 25874 0 -1 4194304 220 0 0 0 1 0 0 0 20 0 1 0 41752857 1572864 203 1992294400 134512640 135197378 4294956240 18446744073709551615 134541222 0 0 4096 0 0 0 0 17 1 0 0
/proc/25911/statm: 384 203 91 167 0 215 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1536

[startup+0.102001 s]
/proc/loadavg: 0.85 0.97 0.99 3/65 25911
/proc/meminfo: memFree=1181792/2055920 swapFree=4192956/4192956
[pid=25911] ppid=25909 vsize=1536 CPUtime=0.09
/proc/25911/stat : 25911 (march_hi) R 25909 25911 25874 0 -1 4194304 253 0 0 0 9 0 0 0 20 0 1 0 41752857 1572864 236 1992294400 134512640 135197378 4294956240 18446744073709551615 134539243 0 0 4096 0 0 0 0 17 1 0 0
/proc/25911/statm: 384 236 91 167 0 215 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1536

[startup+0.301988 s]
/proc/loadavg: 0.85 0.97 0.99 3/65 25911
/proc/meminfo: memFree=1181792/2055920 swapFree=4192956/4192956
[pid=25911] ppid=25909 vsize=1668 CPUtime=0.29
/proc/25911/stat : 25911 (march_hi) R 25909 25911 25874 0 -1 4194304 265 0 0 0 29 0 0 0 22 0 1 0 41752857 1708032 248 1992294400 134512640 135197378 4294956240 18446744073709551615 134539309 0 0 4096 0 0 0 0 17 1 0 0
/proc/25911/statm: 417 248 91 167 0 248 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1668

[startup+0.701033 s]
/proc/loadavg: 0.85 0.97 0.99 3/65 25911
/proc/meminfo: memFree=1181792/2055920 swapFree=4192956/4192956
[pid=25911] ppid=25909 vsize=1668 CPUtime=0.69
/proc/25911/stat : 25911 (march_hi) R 25909 25911 25874 0 -1 4194304 271 0 0 0 69 0 0 0 25 0 1 0 41752857 1708032 254 1992294400 134512640 135197378 4294956240 18446744073709551615 134596826 0 0 4096 0 0 0 0 17 1 0 0
/proc/25911/statm: 417 254 91 167 0 248 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1668

[startup+1.50112 s]
/proc/loadavg: 0.85 0.97 0.99 2/66 25912
/proc/meminfo: memFree=1181080/2055920 swapFree=4192956/4192956
[pid=25911] ppid=25909 vsize=1668 CPUtime=1.49
/proc/25911/stat : 25911 (march_hi) R 25909 25911 25874 0 -1 4194304 281 0 0 0 149 0 0 0 25 0 1 0 41752857 1708032 264 1992294400 134512640 135197378 4294956240 18446744073709551615 134539380 0 0 4096 0 0 0 0 17 1 0 0
/proc/25911/statm: 417 264 91 167 0 248 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1668

[startup+3.1013 s]
/proc/loadavg: 0.85 0.97 0.99 2/66 25912
/proc/meminfo: memFree=1180952/2055920 swapFree=4192956/4192956
[pid=25911] ppid=25909 vsize=1668 CPUtime=3.09
/proc/25911/stat : 25911 (march_hi) R 25909 25911 25874 0 -1 4194304 289 0 0 0 309 0 0 0 25 0 1 0 41752857 1708032 272 1992294400 134512640 135197378 4294956240 18446744073709551615 134593474 0 0 4096 0 0 0 0 17 1 0 0
/proc/25911/statm: 417 272 91 167 0 248 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1668

[startup+6.30166 s]
/proc/loadavg: 0.86 0.97 0.99 2/66 25912
/proc/meminfo: memFree=1180824/2055920 swapFree=4192956/4192956
[pid=25911] ppid=25909 vsize=1844 CPUtime=6.29
/proc/25911/stat : 25911 (march_hi) R 25909 25911 25874 0 -1 4194304 307 0 0 0 629 0 0 0 25 0 1 0 41752857 1888256 290 1992294400 134512640 135197378 4294956240 18446744073709551615 134570751 0 0 4096 0 0 0 0 17 1 0 0
/proc/25911/statm: 461 290 91 167 0 292 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1844

[startup+12.7024 s]
/proc/loadavg: 0.87 0.97 0.99 2/66 25912
/proc/meminfo: memFree=1180704/2055920 swapFree=4192956/4192956
[pid=25911] ppid=25909 vsize=1844 CPUtime=12.69
/proc/25911/stat : 25911 (march_hi) R 25909 25911 25874 0 -1 4194304 326 0 0 0 1269 0 0 0 25 0 1 0 41752857 1888256 309 1992294400 134512640 135197378 4294956240 18446744073709551615 134539266 0 0 4096 0 0 0 0 17 1 0 0
/proc/25911/statm: 461 309 91 167 0 292 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1844

[startup+25.5018 s]
/proc/loadavg: 0.90 0.97 0.99 2/66 25912
/proc/meminfo: memFree=1180320/2055920 swapFree=4192956/4192956
[pid=25911] ppid=25909 vsize=2300 CPUtime=25.49
/proc/25911/stat : 25911 (march_hi) R 25909 25911 25874 0 -1 4194304 411 0 0 0 2549 0 0 0 25 0 1 0 41752857 2355200 394 1992294400 134512640 135197378 4294956240 18446744073709551615 134525324 0 0 4096 0 0 0 0 17 1 0 0
/proc/25911/statm: 575 394 91 167 0 406 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 2300

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

[startup+28.7012 s]
/proc/loadavg: 0.90 0.97 0.99 2/66 25912
/proc/meminfo: memFree=1180256/2055920 swapFree=4192956/4192956
[pid=25911] ppid=25909 vsize=2300 CPUtime=28.68
/proc/25911/stat : 25911 (march_hi) R 25909 25911 25874 0 -1 4194304 428 0 0 0 2868 0 0 0 25 0 1 0 41752857 2355200 411 1992294400 134512640 135197378 4294956240 18446744073709551615 134552743 0 0 4096 0 0 0 0 17 1 0 0
/proc/25911/statm: 575 411 91 167 0 406 0
Current children cumulated CPU time (s) 28.68
Current children cumulated vsize (KiB) 2300

[startup+29.5023 s]
/proc/loadavg: 0.90 0.97 0.99 2/66 25912
/proc/meminfo: memFree=1180256/2055920 swapFree=4192956/4192956
[pid=25911] ppid=25909 vsize=2300 CPUtime=29.48
/proc/25911/stat : 25911 (march_hi) R 25909 25911 25874 0 -1 4194304 433 0 0 0 2948 0 0 0 25 0 1 0 41752857 2355200 416 1992294400 134512640 135197378 4294956240 18446744073709551615 134539266 0 0 4096 0 0 0 0 17 1 0 0
/proc/25911/statm: 575 416 91 167 0 406 0
Current children cumulated CPU time (s) 29.48
Current children cumulated vsize (KiB) 2300

[startup+30.3013 s]
/proc/loadavg: 0.91 0.97 0.99 2/66 25912
/proc/meminfo: memFree=1180256/2055920 swapFree=4192956/4192956
[pid=25911] ppid=25909 vsize=2300 CPUtime=30.28
/proc/25911/stat : 25911 (march_hi) R 25909 25911 25874 0 -1 4194304 438 0 0 0 3028 0 0 0 25 0 1 0 41752857 2355200 421 1992294400 134512640 135197378 4294956240 18446744073709551615 134525281 0 0 4096 0 0 0 0 17 1 0 0
/proc/25911/statm: 575 421 91 167 0 406 0
Current children cumulated CPU time (s) 30.28
Current children cumulated vsize (KiB) 2300

[startup+30.5014 s]
/proc/loadavg: 0.91 0.97 0.99 2/66 25912
/proc/meminfo: memFree=1180256/2055920 swapFree=4192956/4192956
[pid=25911] ppid=25909 vsize=2300 CPUtime=30.48
/proc/25911/stat : 25911 (march_hi) R 25909 25911 25874 0 -1 4194304 439 0 0 0 3048 0 0 0 25 0 1 0 41752857 2355200 422 1992294400 134512640 135197378 4294956240 18446744073709551615 134542210 0 0 4096 0 0 0 0 17 1 0 0
/proc/25911/statm: 575 422 91 167 0 406 0
Current children cumulated CPU time (s) 30.48
Current children cumulated vsize (KiB) 2300

Child status: 20
Real time (s): 30.5278
CPU time (s): 30.5144
CPU user time (s): 30.5104
CPU system time (s): 0.003999
CPU usage (%): 99.9561
Max. virtual memory (cumulated for all children) (KiB): 2300

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 30.5104
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 442
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= 259

runsolver used 0.044993 second user time and 0.084987 second system time

The end

Launcher Data 

Begin job on node76 at 2009-04-19 12:33:47
IDJOB=1628177
IDBENCH=70633
IDSOLVER=583
FILE ID=node76/1628177-1240137227
PBS_JOBID= 9157879
Free space on /tmp= 66512 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/380/unif-k3-r4.25-v380-c1615-S502087726-095.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1628177-1240137227/watcher-1628177-1240137227 -o /tmp/evaluation-result-1628177-1240137227/solver-1628177-1240137227 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1628177-1240137227.cnf

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

MD5SUM BENCH= 19585c969548ec91e42795356f5c76b1
RANDOM SEED=403746651

node76.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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1182272 kB
Buffers:         77472 kB
Cached:         700856 kB
SwapCached:          0 kB
Active:         518732 kB
Inactive:       273296 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1182272 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            1032 kB
Writeback:           0 kB
Mapped:          23420 kB
Slab:            67520 kB
Committed_AS:   146200 kB
PageTables:       1432 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= 66512 MiB
End job on node76 at 2009-04-19 12:34:18