Trace number 1544416

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
SAT07 reference solver: March KS 2007-02-08SAT 16.3375 16.343

General information on the benchmark

NameRANDOM/MEDIUM/5SAT/SATISFIABLE/100/
unif-k5-r21.3-v100-c2130-S984347600-003.cnf
MD5SUMf970d757930d05086c1a20356ea57d99
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.153976
Satisfiable
(Un)Satisfiability was proved
Number of variables100
Number of clauses2130
Sum of the clauses size10650
Maximum clause length5
Minimum clause length5
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 52130
Number of clauses of size over 50

Solver Data 

0.02/0.04	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.02/0.04	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.02/0.04	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.02/0.04	c main()::
0.02/0.04	c initFormula():: searching for DIMACS p-line....
0.02/0.04	c full lookahead due to high density!
0.02/0.04	c initFormula():: the DIMACS p-line indicates a CNF of 100 variables and 2130 clauses.
0.02/0.04	c parseCNF():: parsing....
0.02/0.04	c parseCNF():: the CNF contains 0 unary clauses.
0.02/0.04	c runParser():: parsing was successful, warming up engines...
0.02/0.04	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.02/0.04	c preprocessing fase I completed:: there are now 100 free variables and 2130 clauses.
0.02/0.04	c stat :: sign balance is biased by 0.046
0.02/0.04	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.02/0.04	c using k-SAT heuristics (size based diff)
0.02/0.04	c longest clause has size 5
0.02/0.04	c simplify_formula():: removed 0 tautological, 0 satisfied and 3 duplicate clauses
0.02/0.04	c resolvent_look() :: found 3 resolvents
0.02/0.04	c main():: clause / variable ratio: ( 2133 / 100 ) = 21.33
0.02/0.04	c longest clause has size 5
0.02/0.04	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.02/0.04	c dynamic_preselect_setsize :: off
0.02/0.04	c suggested doublelook initial :: 0
0.02/0.04	c main():: all systems go!
0.02/0.04	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 0 NC: 128 JD: 19
0.02/0.09	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| 1 NC: 1680 JD: 19
0.69/0.74	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |*****************
c |******************
c |********************
c |************************
c |*************************
c |**************************
c |****************************
c |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |*****************************************
c |******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| 2 NC: 11645 JD: 19
4.99/5.03	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |*********
c |**********
c |************
c |*************
c |**************
c |***************
c |****************
c |*****************
c |******************
c |********************
c |*********************
c |**********************
c |***********************
c |************************
c |*************************
c |**************************
c |***************************
c |****************************
c |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |*************************************
c |**************************************
c |***************************************
c |****************************************
c |*****************************************
c |******************************************
c |*******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |***************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
16.29/16.34	c solution bin :: 0000100010000000010.1010000000000
16.29/16.34	c direction branchin :: current_rights = 5
16.29/16.34	
c |*************************************************************
16.29/16.34	c
16.29/16.34	c main():: nodeCount: 37653
16.29/16.34	c main():: dead ends in main: 34
16.29/16.34	c main():: lookAheadCount: 4407843
16.29/16.34	c main():: unitResolveCount: 98640
16.29/16.34	c main():: time=16.330000
16.29/16.34	c main():: necessary_assignments: 506
16.29/16.34	c main():: bin_sat: 0, bin_unsat 0
16.29/16.34	c main():: doublelook: #: 158898, succes #: 129536
16.29/16.34	c main():: doublelook: overall 3.650 of all possible doublelooks executed
16.29/16.34	c main():: doublelook: succesrate: 81.521, average DL_trigger: 24.983
16.29/16.34	c main():: SOLUTION VERIFIED :-)
16.29/16.34	s SATISFIABLE
16.29/16.34	v 1 -2 -3 4 -5 -6 -7 8 9 10 11 -12 -13 -14 15 -16 17 18 19 20 -21 22 -23 24 25 -26 27 -28 -29 30 31 32 33 34 35 -36 37 38 39 40 -41 -42 43 44 45 -46 -47 48 -49 50 -51 52 53 -54 55 -56 57 -58 59 60 -61 -62 -63 64 65 66 -67 -68 -69 70 -71 72 -73 74 75 -76 -77 78 -79 -80 81 82 83 84 85 86 87 88 89 90 -91 -92 93 94 -95 -96 -97 -98 99 -100 0

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1544416-1238610208/watcher-1544416-1238610208 -o /tmp/evaluation-result-1544416-1238610208/solver-1544416-1238610208 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1544416-1238610208.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: 0.00 0.24 0.63 3/64 2013
/proc/meminfo: memFree=1015408/2055920 swapFree=4176444/4192956
[pid=2013] ppid=2011 vsize=792 CPUtime=0
/proc/2013/stat : 2013 (march_ks) R 2011 2013 1976 0 -1 4194304 97 0 0 0 0 0 0 0 18 0 1 0 1133686173 811008 82 1992294400 134512640 135019032 4294956240 18446744073709551615 134558454 0 0 4096 0 0 0 0 17 0 0 0
/proc/2013/statm: 198 83 48 123 0 73 0

[startup+0.0300691 s]
/proc/loadavg: 0.00 0.24 0.63 3/64 2013
/proc/meminfo: memFree=1015408/2055920 swapFree=4176444/4192956
[pid=2013] ppid=2011 vsize=936 CPUtime=0.02
/proc/2013/stat : 2013 (march_ks) R 2011 2013 1976 0 -1 4194304 160 0 0 0 2 0 0 0 18 0 1 0 1133686173 958464 143 1992294400 134512640 135019032 4294956240 18446744073709551615 134536937 0 0 4096 0 0 0 0 17 0 0 0
/proc/2013/statm: 234 143 67 123 0 109 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 936

[startup+0.101076 s]
/proc/loadavg: 0.00 0.24 0.63 3/64 2013
/proc/meminfo: memFree=1015408/2055920 swapFree=4176444/4192956
[pid=2013] ppid=2011 vsize=1048 CPUtime=0.09
/proc/2013/stat : 2013 (march_ks) R 2011 2013 1976 0 -1 4194304 194 0 0 0 9 0 0 0 18 0 1 0 1133686173 1073152 177 1992294400 134512640 135019032 4294956240 18446744073709551615 134526953 0 0 4096 0 0 0 0 17 0 0 0
/proc/2013/statm: 262 177 72 123 0 137 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1048

[startup+0.301096 s]
/proc/loadavg: 0.00 0.24 0.63 3/64 2013
/proc/meminfo: memFree=1015408/2055920 swapFree=4176444/4192956
[pid=2013] ppid=2011 vsize=1048 CPUtime=0.29
/proc/2013/stat : 2013 (march_ks) R 2011 2013 1976 0 -1 4194304 194 0 0 0 29 0 0 0 19 0 1 0 1133686173 1073152 177 1992294400 134512640 135019032 4294956240 18446744073709551615 134538152 0 0 4096 0 0 0 0 17 0 0 0
/proc/2013/statm: 262 177 72 123 0 137 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1048

[startup+0.701136 s]
/proc/loadavg: 0.00 0.24 0.63 3/64 2013
/proc/meminfo: memFree=1015408/2055920 swapFree=4176444/4192956
[pid=2013] ppid=2011 vsize=1048 CPUtime=0.69
/proc/2013/stat : 2013 (march_ks) R 2011 2013 1976 0 -1 4194304 194 0 0 0 69 0 0 0 23 0 1 0 1133686173 1073152 177 1992294400 134512640 135019032 4294956240 18446744073709551615 134527271 0 0 4096 0 0 0 0 17 0 0 0
/proc/2013/statm: 262 177 72 123 0 137 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1048

[startup+1.50122 s]
/proc/loadavg: 0.00 0.24 0.63 2/65 2014
/proc/meminfo: memFree=1014952/2055920 swapFree=4176444/4192956
[pid=2013] ppid=2011 vsize=1048 CPUtime=1.49
/proc/2013/stat : 2013 (march_ks) R 2011 2013 1976 0 -1 4194304 194 0 0 0 149 0 0 0 25 0 1 0 1133686173 1073152 177 1992294400 134512640 135019032 4294956240 18446744073709551615 134526944 0 0 4096 0 0 0 0 17 0 0 0
/proc/2013/statm: 262 177 72 123 0 137 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1048

[startup+3.10138 s]
/proc/loadavg: 0.00 0.24 0.63 2/65 2014
/proc/meminfo: memFree=1014824/2055920 swapFree=4176444/4192956
[pid=2013] ppid=2011 vsize=1048 CPUtime=3.09
/proc/2013/stat : 2013 (march_ks) R 2011 2013 1976 0 -1 4194304 194 0 0 0 309 0 0 0 25 0 1 0 1133686173 1073152 177 1992294400 134512640 135019032 4294956240 18446744073709551615 134538094 0 0 4096 0 0 0 0 17 0 0 0
/proc/2013/statm: 262 177 72 123 0 137 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1048

[startup+6.3017 s]
/proc/loadavg: 0.08 0.25 0.63 2/65 2014
/proc/meminfo: memFree=1014760/2055920 swapFree=4176444/4192956
[pid=2013] ppid=2011 vsize=1048 CPUtime=6.29
/proc/2013/stat : 2013 (march_ks) R 2011 2013 1976 0 -1 4194304 198 0 0 0 629 0 0 0 25 0 1 0 1133686173 1073152 181 1992294400 134512640 135019032 4294956240 18446744073709551615 134537973 0 0 4096 0 0 0 0 17 0 0 0
/proc/2013/statm: 262 181 72 123 0 137 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1048

[startup+12.7024 s]
/proc/loadavg: 0.15 0.27 0.63 2/65 2014
/proc/meminfo: memFree=1014632/2055920 swapFree=4176444/4192956
[pid=2013] ppid=2011 vsize=1196 CPUtime=12.69
/proc/2013/stat : 2013 (march_ks) R 2011 2013 1976 0 -1 4194304 211 0 0 0 1269 0 0 0 25 0 1 0 1133686173 1224704 194 1992294400 134512640 135019032 4294956240 18446744073709551615 134587613 0 0 4096 0 0 0 0 17 0 0 0
/proc/2013/statm: 299 194 72 123 0 174 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1196

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

[startup+14.3055 s]
/proc/loadavg: 0.22 0.28 0.63 2/65 2014
/proc/meminfo: memFree=1014632/2055920 swapFree=4176444/4192956
[pid=2013] ppid=2011 vsize=1196 CPUtime=14.29
/proc/2013/stat : 2013 (march_ks) R 2011 2013 1976 0 -1 4194304 213 0 0 0 1429 0 0 0 25 0 1 0 1133686173 1224704 196 1992294400 134512640 135019032 4294956240 18446744073709551615 134537937 0 0 4096 0 0 0 0 17 0 0 0
/proc/2013/statm: 299 196 72 123 0 174 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 1196

[startup+15.1016 s]
/proc/loadavg: 0.22 0.28 0.63 2/65 2014
/proc/meminfo: memFree=1014632/2055920 swapFree=4176444/4192956
[pid=2013] ppid=2011 vsize=1196 CPUtime=15.09
/proc/2013/stat : 2013 (march_ks) R 2011 2013 1976 0 -1 4194304 214 0 0 0 1509 0 0 0 25 0 1 0 1133686173 1224704 197 1992294400 134512640 135019032 4294956240 18446744073709551615 134526930 0 0 4096 0 0 0 0 17 0 0 0
/proc/2013/statm: 299 197 72 123 0 174 0
Current children cumulated CPU time (s) 15.09
Current children cumulated vsize (KiB) 1196

[startup+15.9017 s]
/proc/loadavg: 0.22 0.28 0.63 2/65 2014
/proc/meminfo: memFree=1014632/2055920 swapFree=4176444/4192956
[pid=2013] ppid=2011 vsize=1196 CPUtime=15.89
/proc/2013/stat : 2013 (march_ks) R 2011 2013 1976 0 -1 4194304 215 0 0 0 1589 0 0 0 25 0 1 0 1133686173 1224704 198 1992294400 134512640 135019032 4294956240 18446744073709551615 134526922 0 0 4096 0 0 0 0 17 0 0 0
/proc/2013/statm: 299 198 72 123 0 174 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 1196

[startup+16.3017 s]
/proc/loadavg: 0.22 0.28 0.63 2/65 2014
/proc/meminfo: memFree=1014632/2055920 swapFree=4176444/4192956
[pid=2013] ppid=2011 vsize=1196 CPUtime=16.29
/proc/2013/stat : 2013 (march_ks) R 2011 2013 1976 0 -1 4194304 216 0 0 0 1629 0 0 0 25 0 1 0 1133686173 1224704 199 1992294400 134512640 135019032 4294956240 18446744073709551615 134541820 0 0 4096 0 0 0 0 17 0 0 0
/proc/2013/statm: 299 199 72 123 0 174 0
Current children cumulated CPU time (s) 16.29
Current children cumulated vsize (KiB) 1196

Child status: 10
Real time (s): 16.343
CPU time (s): 16.3375
CPU user time (s): 16.3345
CPU system time (s): 0.002999
CPU usage (%): 99.9662
Max. virtual memory (cumulated for all children) (KiB): 1196

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 16.3345
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 218
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= 66

runsolver used 0.020996 second user time and 0.049992 second system time

The end

Launcher Data 

Begin job on node27 at 2009-04-01 20:23:28
IDJOB=1544416
IDBENCH=70435
IDSOLVER=559
FILE ID=node27/1544416-1238610208
PBS_JOBID= 9073615
Free space on /tmp= 65720 MiB

SOLVER NAME= SAT07 reference solver: March KS 2007-02-08
BENCH NAME= SAT09/RANDOM/MEDIUM/5SAT/SATISFIABLE/100/unif-k5-r21.3-v100-c2130-S984347600-003.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1544416-1238610208/watcher-1544416-1238610208 -o /tmp/evaluation-result-1544416-1238610208/solver-1544416-1238610208 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1544416-1238610208.cnf            

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

MD5SUM BENCH= f970d757930d05086c1a20356ea57d99
RANDOM SEED=436330155

node27.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		: 2800.196
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	: 5521.40
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		: 2800.196
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:       1015960 kB
Buffers:         97348 kB
Cached:         838360 kB
SwapCached:       9492 kB
Active:         219028 kB
Inactive:       727728 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1015960 kB
SwapTotal:     4192956 kB
SwapFree:      4176444 kB
Dirty:            2916 kB
Writeback:           0 kB
Mapped:          16704 kB
Slab:            79148 kB
Committed_AS:  3042632 kB
PageTables:       1380 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264948 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 65716 MiB
End job on node27 at 2009-04-01 20:23:44