Trace number 1519322

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 nnSAT 4.07638 4.07805

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/360/
unif-k3-r4.25-v360-c1530-S1711406314-093.cnf
MD5SUM827e988c6cf21e8a9c90f9f21d3beb6e
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.016996
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, 14 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 358 free variables and 1516 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.524
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 155 duplicate clauses
0.00/0.01	c resolvent_look() :: found 103 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 360 variables and 1619 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 1619 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1619 / 360 ) = 4.50
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 = 358
0.00/0.01	c dynamic_preselect_setsize :: off
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| ( 0/999) NodeCount: 30
0.00/0.02	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| ( 1/999) NodeCount: 314
0.06/0.10	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 |****************************************************************| ( 2/999) NodeCount: 1783
0.49/0.58	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 |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| ( 3/999) NodeCount: 6636
2.39/2.45	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 |*******************************************
3.99/4.07	c |010100000000000101000000000$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$|
3.99/4.07	
c |*******************************************
3.99/4.07	c
3.99/4.07	c main():: nodeCount: 10403
3.99/4.07	c main():: dead ends in main: 181
3.99/4.07	c main():: lookAheadCount: 818458
3.99/4.07	c main():: unitResolveCount: 104419
3.99/4.07	c main():: time=4.070000
3.99/4.07	c main():: necessary_assignments: 2327
3.99/4.07	c main():: bin_sat: 0, bin_unsat 0
3.99/4.07	c main():: doublelook: #: 30457, succes #: 17645
3.99/4.07	c main():: doublelook: overall 3.793 of all possible doublelooks executed
3.99/4.07	c main():: doublelook: succesrate: 57.934, average DL_trigger: 46.387
3.99/4.07	c main():: SOLUTION VERIFIED :-)
3.99/4.07	s SATISFIABLE
3.99/4.07	v -1 -2 -3 4 5 6 7 -8 -10 11 -12 -13 14 -15 16 17 -18 -19 20 21 -22 23 24 -25 -26 -27 -28 -29 -31 -32 33 -35 -36 -37 -38 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 -71 -72 73 74 75 76 -77 79 -80 -81 -82 -83 84 -85 -86 87 89 -90 91 92 93 -94 95 -97 -98 99 -100 101 -102 103 104 105 106 107 -108 -109 -110 111 112 -113 114 -115 116 117 -118 119 120 -121 122 123 124 -125 126 127 -128 -129 130 -131 132 133 134 -135 -136 137 -138 139 -140 141 -142 143 -144 145 146 147 -148 -149 151 152 153 -154 -155 156 -157 -158 159 -161 162 163 164 -165 166 -167 -169 -170 -171 -172 173 174 175 -176 177 -178 -179 -181 182 183 -184 185 -186 187 -188 189 190 191 192 -193 -194 195 -196 197 -198 -199 200 201 -202 -203 -204 205 -206 -207 208 -209 -210 211 212 -213 -214 215 216 217 -218 219 -220 -221 -222 -223 -225 226 -227 -228 -229 -230 -231 232 -233 234 -235 -236 237 -238 -239 -240 -241 242 243 244 -246 247 248 -249 250 251 -252 253 254 -255 -256 -257 -258 259 260 -261 -262 -264 -265 -266 267 -268 269 270 271 -272 -273 274 -275 -276 -277 -278 -279 280 -281 -283 284 285 -286 -287 -288 289 290 291 292 293 294 296 -297 -298 299 -300 -301 -302 303 -304 -306 -307 308 309 310 -311 -312 -313 -314 -315 316 -317 -318 319 320 321 322 -323 -324 -325 -326 -327 -328 -329 330 331 332 -333 334 -335 336 337 -338 339 -340 -341 342 343 -344 -345 346 -347 348 -349 -350 -351 352 -353 354 355 -357 358 -359 -360 0

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1519322-1238309731/watcher-1519322-1238309731 -o /tmp/evaluation-result-1519322-1238309731/solver-1519322-1238309731 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1519322-1238309731.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: 1.00 1.04 1.00 3/64 30325
/proc/meminfo: memFree=890272/2055920 swapFree=4176708/4192956
[pid=30325] ppid=30323 vsize=972 CPUtime=0
/proc/30325/stat : 30325 (march_nn) R 30323 30325 29903 0 -1 4194304 135 0 0 0 0 0 0 0 18 0 1 0 1103635185 995328 118 1992294400 134512640 135197250 4294956240 18446744073709551615 134535888 0 0 4096 0 0 0 0 17 1 0 0
/proc/30325/statm: 243 118 67 167 0 74 0

[startup+0.0709339 s]
/proc/loadavg: 1.00 1.04 1.00 3/64 30325
/proc/meminfo: memFree=890272/2055920 swapFree=4176708/4192956
[pid=30325] ppid=30323 vsize=1520 CPUtime=0.06
/proc/30325/stat : 30325 (march_nn) R 30323 30325 29903 0 -1 4194304 247 0 0 0 6 0 0 0 18 0 1 0 1103635185 1556480 230 1992294400 134512640 135197250 4294956240 18446744073709551615 134542050 0 0 4096 0 0 0 0 17 1 0 0
/proc/30325/statm: 380 230 93 167 0 211 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1520

[startup+0.101937 s]
/proc/loadavg: 1.00 1.04 1.00 3/64 30325
/proc/meminfo: memFree=890272/2055920 swapFree=4176708/4192956
[pid=30325] ppid=30323 vsize=1520 CPUtime=0.09
/proc/30325/stat : 30325 (march_nn) R 30323 30325 29903 0 -1 4194304 251 0 0 0 9 0 0 0 18 0 1 0 1103635185 1556480 234 1992294400 134512640 135197250 4294956240 18446744073709551615 134603831 0 0 4096 0 0 0 0 17 1 0 0
/proc/30325/statm: 380 234 93 167 0 211 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1520

[startup+0.301954 s]
/proc/loadavg: 1.00 1.04 1.00 3/64 30325
/proc/meminfo: memFree=890272/2055920 swapFree=4176708/4192956
[pid=30325] ppid=30323 vsize=1520 CPUtime=0.29
/proc/30325/stat : 30325 (march_nn) R 30323 30325 29903 0 -1 4194304 264 0 0 0 29 0 0 0 19 0 1 0 1103635185 1556480 247 1992294400 134512640 135197250 4294956240 18446744073709551615 134713087 0 0 4096 0 0 0 0 17 1 0 0
/proc/30325/statm: 380 247 93 167 0 211 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1520

[startup+0.701989 s]
/proc/loadavg: 1.00 1.04 1.00 3/64 30325
/proc/meminfo: memFree=890272/2055920 swapFree=4176708/4192956
[pid=30325] ppid=30323 vsize=1688 CPUtime=0.69
/proc/30325/stat : 30325 (march_nn) R 30323 30325 29903 0 -1 4194304 280 0 0 0 69 0 0 0 22 0 1 0 1103635185 1728512 263 1992294400 134512640 135197250 4294956240 18446744073709551615 134539309 0 0 4096 0 0 0 0 17 1 0 0
/proc/30325/statm: 422 263 93 167 0 253 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1688

[startup+1.50106 s]
/proc/loadavg: 1.00 1.04 1.00 2/65 30326
/proc/meminfo: memFree=889496/2055920 swapFree=4176708/4192956
[pid=30325] ppid=30323 vsize=1844 CPUtime=1.49
/proc/30325/stat : 30325 (march_nn) R 30323 30325 29903 0 -1 4194304 318 0 0 0 149 0 0 0 25 0 1 0 1103635185 1888256 301 1992294400 134512640 135197250 4294956240 18446744073709551615 134542433 0 0 4096 0 0 0 0 17 1 0 0
/proc/30325/statm: 461 301 93 167 0 292 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1844

[startup+3.10121 s]
/proc/loadavg: 1.00 1.04 1.00 2/65 30326
/proc/meminfo: memFree=889112/2055920 swapFree=4176708/4192956
[pid=30325] ppid=30323 vsize=2048 CPUtime=3.09
/proc/30325/stat : 30325 (march_nn) R 30323 30325 29903 0 -1 4194304 390 0 0 0 309 0 0 0 25 0 1 0 1103635185 2097152 373 1992294400 134512640 135197250 4294956240 18446744073709551615 134596875 0 0 4096 0 0 0 0 17 1 0 0
/proc/30325/statm: 512 373 93 167 0 343 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2048

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

[startup+3.50124 s]
/proc/loadavg: 1.00 1.04 1.00 2/65 30326
/proc/meminfo: memFree=888984/2055920 swapFree=4176708/4192956
[pid=30325] ppid=30323 vsize=2148 CPUtime=3.49
/proc/30325/stat : 30325 (march_nn) R 30323 30325 29903 0 -1 4194304 396 0 0 0 349 0 0 0 25 0 1 0 1103635185 2199552 379 1992294400 134512640 135197250 4294956240 18446744073709551615 134572875 0 0 4096 0 0 0 0 17 1 0 0
/proc/30325/statm: 537 379 93 167 0 368 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 2148

[startup+3.90128 s]
/proc/loadavg: 1.00 1.04 1.00 2/65 30326
/proc/meminfo: memFree=888984/2055920 swapFree=4176708/4192956
[pid=30325] ppid=30323 vsize=2148 CPUtime=3.89
/proc/30325/stat : 30325 (march_nn) R 30323 30325 29903 0 -1 4194304 401 0 0 0 389 0 0 0 25 0 1 0 1103635185 2199552 384 1992294400 134512640 135197250 4294956240 18446744073709551615 134525351 0 0 4096 0 0 0 0 17 1 0 0
/proc/30325/statm: 537 384 93 167 0 368 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 2148

[startup+4.00129 s]
/proc/loadavg: 1.00 1.04 1.00 2/65 30326
/proc/meminfo: memFree=888984/2055920 swapFree=4176708/4192956
[pid=30325] ppid=30323 vsize=2148 CPUtime=3.99
/proc/30325/stat : 30325 (march_nn) R 30323 30325 29903 0 -1 4194304 403 0 0 0 399 0 0 0 25 0 1 0 1103635185 2199552 386 1992294400 134512640 135197250 4294956240 18446744073709551615 134525315 0 0 4096 0 0 0 0 17 1 0 0
/proc/30325/statm: 537 386 93 167 0 368 0
Current children cumulated CPU time (s) 3.99
Current children cumulated vsize (KiB) 2148

Child status: 10
Real time (s): 4.07805
CPU time (s): 4.07638
CPU user time (s): 4.07338
CPU system time (s): 0.002999
CPU usage (%): 99.959
Max. virtual memory (cumulated for all children) (KiB): 2148

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.07338
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= 407
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= 4

runsolver used 0.004999 second user time and 0.017997 second system time

The end

Launcher Data 

Begin job on node51 at 2009-03-29 08:55:31
IDJOB=1519322
IDBENCH=70753
IDSOLVER=522
FILE ID=node51/1519322-1238309731
PBS_JOBID= 9061045
Free space on /tmp= 65232 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/360/unif-k3-r4.25-v360-c1530-S1711406314-093.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1519322-1238309731/watcher-1519322-1238309731 -o /tmp/evaluation-result-1519322-1238309731/solver-1519322-1238309731 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1519322-1238309731.cnf

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

MD5SUM BENCH= 827e988c6cf21e8a9c90f9f21d3beb6e
RANDOM SEED=1518882887

node51.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		: 3000.234
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		: 3000.234
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:        890752 kB
Buffers:         75920 kB
Cached:         999500 kB
SwapCached:       9996 kB
Active:         161284 kB
Inactive:       925568 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        890752 kB
SwapTotal:     4192956 kB
SwapFree:      4176708 kB
Dirty:             800 kB
Writeback:           0 kB
Mapped:          17148 kB
Slab:            64372 kB
Committed_AS:  2918212 kB
PageTables:       1400 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= 65232 MiB
End job on node51 at 2009-03-29 08:55:35