Trace number 1519226

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 5.38018 5.38347

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/360/
unif-k3-r4.25-v360-c1530-S1684547485-073.cnf
MD5SUM7978035feeedb8c4f26fadad2c608014
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.014997
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, 16 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 358 free variables and 1514 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.499
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 166 duplicate clauses
0.00/0.01	c resolvent_look() :: found 76 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 360 variables and 1590 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 1590 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1590 / 360 ) = 4.42
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: 26
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: 286
0.06/0.09	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |*****************
c |******************
c |********************
c |************************
c |*************************
c |**************************
c |****************************
c |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |*****************************************
c |******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| ( 2/999) NodeCount: 1857
0.50/0.58	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: 7543
2.59/2.64	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 |*******************************************************
5.29/5.38	c |00100000100000010000100000000$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$|
5.29/5.38	
c |*******************************************************
5.29/5.38	c
5.29/5.38	c main():: nodeCount: 14310
5.29/5.38	c main():: dead ends in main: 214
5.29/5.38	c main():: lookAheadCount: 1092383
5.29/5.38	c main():: unitResolveCount: 137482
5.29/5.38	c main():: time=5.370000
5.29/5.38	c main():: necessary_assignments: 2918
5.29/5.38	c main():: bin_sat: 0, bin_unsat 0
5.29/5.38	c main():: doublelook: #: 41403, succes #: 23915
5.29/5.38	c main():: doublelook: overall 3.864 of all possible doublelooks executed
5.29/5.38	c main():: doublelook: succesrate: 57.762, average DL_trigger: 44.564
5.29/5.38	c main():: SOLUTION VERIFIED :-)
5.29/5.38	s SATISFIABLE
5.29/5.38	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 -83 84 85 -87 -88 89 -90 91 93 94 95 96 97 -98 -99 -100 -101 102 103 104 -105 107 -109 -110 111 112 -113 114 115 116 117 118 119 120 121 -122 123 -124 -126 127 -128 -129 130 131 -132 -133 -134 135 136 137 -138 139 140 141 142 143 144 -145 146 147 -149 -150 151 152 153 154 -155 -156 157 158 159 -160 -161 -162 -163 -164 165 166 -167 -168 -169 170 171 -173 -175 -176 -177 178 179 -180 181 -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 -219 220 221 222 223 224 225 226 227 -228 229 230 -231 -232 233 234 235 -236 237 238 -239 240 -241 -242 -243 -244 245 246 247 248 249 250 -251 252 253 254 -255 256 257 258 259 260 261 -262 263 -264 265 266 -267 268 -269 270 -271 272 273 -274 275 -276 277 278 279 280 281 282 283 284 -285 286 -287 288 -289 -290 291 292 293 -294 -295 -296 297 298 299 300 301 302 303 304 305 306 -307 -308 309 -310 311 312 313 314 315 316 317 318 -319 320 322 -323 324 325 -326 -327 -328 329 -330 331 -332 -334 335 -336 337 338 -339 -340 341 342 -343 344 345 -346 -347 348 349 -350 351 352 353 354 355 356 357 358 359 -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-1519226-1238309109/watcher-1519226-1238309109 -o /tmp/evaluation-result-1519226-1238309109/solver-1519226-1238309109 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1519226-1238309109.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: 0.91 0.95 0.97 3/64 23243
/proc/meminfo: memFree=829608/2055920 swapFree=4176704/4192956
[pid=23243] ppid=23241 vsize=972 CPUtime=0
/proc/23243/stat : 23243 (march_nn) R 23241 23243 22817 0 -1 4194304 135 0 0 0 0 0 0 0 18 0 1 0 1103576801 995328 118 1992294400 134512640 135197250 4294956240 18446744073709551615 134535888 0 0 4096 0 0 0 0 17 1 0 0
/proc/23243/statm: 243 118 67 167 0 74 0

[startup+0.068186 s]
/proc/loadavg: 0.91 0.95 0.97 3/64 23243
/proc/meminfo: memFree=829608/2055920 swapFree=4176704/4192956
[pid=23243] ppid=23241 vsize=1520 CPUtime=0.06
/proc/23243/stat : 23243 (march_nn) R 23241 23243 22817 0 -1 4194304 242 0 0 0 6 0 0 0 18 0 1 0 1103576801 1556480 225 1992294400 134512640 135197250 4294956240 18446744073709551615 134618605 0 0 4096 0 0 0 0 17 1 0 0
/proc/23243/statm: 380 225 93 167 0 211 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1520

[startup+0.101189 s]
/proc/loadavg: 0.91 0.95 0.97 3/64 23243
/proc/meminfo: memFree=829608/2055920 swapFree=4176704/4192956
[pid=23243] ppid=23241 vsize=1520 CPUtime=0.1
/proc/23243/stat : 23243 (march_nn) R 23241 23243 22817 0 -1 4194304 247 0 0 0 10 0 0 0 18 0 1 0 1103576801 1556480 230 1992294400 134512640 135197250 4294956240 18446744073709551615 134541914 0 0 4096 0 0 0 0 17 1 0 0
/proc/23243/statm: 380 230 93 167 0 211 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1520

[startup+0.301213 s]
/proc/loadavg: 0.91 0.95 0.97 3/64 23243
/proc/meminfo: memFree=829608/2055920 swapFree=4176704/4192956
[pid=23243] ppid=23241 vsize=1520 CPUtime=0.3
/proc/23243/stat : 23243 (march_nn) R 23241 23243 22817 0 -1 4194304 260 0 0 0 30 0 0 0 19 0 1 0 1103576801 1556480 243 1992294400 134512640 135197250 4294956240 18446744073709551615 134594037 0 0 4096 0 0 0 0 17 1 0 0
/proc/23243/statm: 380 243 93 167 0 211 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1520

[startup+0.701259 s]
/proc/loadavg: 0.91 0.95 0.97 3/64 23243
/proc/meminfo: memFree=829608/2055920 swapFree=4176704/4192956
[pid=23243] ppid=23241 vsize=1652 CPUtime=0.7
/proc/23243/stat : 23243 (march_nn) R 23241 23243 22817 0 -1 4194304 285 0 0 0 70 0 0 0 22 0 1 0 1103576801 1691648 268 1992294400 134512640 135197250 4294956240 18446744073709551615 134542220 0 0 4096 0 0 0 0 17 1 0 0
/proc/23243/statm: 413 268 93 167 0 244 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1652

[startup+1.50135 s]
/proc/loadavg: 0.91 0.95 0.97 2/65 23244
/proc/meminfo: memFree=828832/2055920 swapFree=4176704/4192956
[pid=23243] ppid=23241 vsize=1948 CPUtime=1.49
/proc/23243/stat : 23243 (march_nn) R 23241 23243 22817 0 -1 4194304 331 0 0 0 149 0 0 0 25 0 1 0 1103576801 1994752 314 1992294400 134512640 135197250 4294956240 18446744073709551615 134542050 0 0 4096 0 0 0 0 17 1 0 0
/proc/23243/statm: 487 314 93 167 0 318 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1948

[startup+3.10154 s]
/proc/loadavg: 0.91 0.95 0.97 2/65 23244
/proc/meminfo: memFree=828512/2055920 swapFree=4176704/4192956
[pid=23243] ppid=23241 vsize=2116 CPUtime=3.09
/proc/23243/stat : 23243 (march_nn) R 23241 23243 22817 0 -1 4194304 364 0 0 0 309 0 0 0 25 0 1 0 1103576801 2166784 347 1992294400 134512640 135197250 4294956240 18446744073709551615 134542050 0 0 4096 0 0 0 0 17 1 0 0
/proc/23243/statm: 529 347 93 167 0 360 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2116

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

[startup+4.70172 s]
/proc/loadavg: 0.92 0.95 0.97 2/65 23244
/proc/meminfo: memFree=828256/2055920 swapFree=4176704/4192956
[pid=23243] ppid=23241 vsize=2116 CPUtime=4.69
/proc/23243/stat : 23243 (march_nn) R 23241 23243 22817 0 -1 4194304 395 0 0 0 469 0 0 0 25 0 1 0 1103576801 2166784 378 1992294400 134512640 135197250 4294956240 18446744073709551615 134525420 0 0 4096 0 0 0 0 17 1 0 0
/proc/23243/statm: 529 378 93 167 0 360 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 2116

[startup+5.10177 s]
/proc/loadavg: 0.92 0.95 0.97 2/65 23244
/proc/meminfo: memFree=828256/2055920 swapFree=4176704/4192956
[pid=23243] ppid=23241 vsize=2268 CPUtime=5.09
/proc/23243/stat : 23243 (march_nn) R 23241 23243 22817 0 -1 4194304 403 0 0 0 509 0 0 0 25 0 1 0 1103576801 2322432 386 1992294400 134512640 135197250 4294956240 18446744073709551615 134525351 0 0 4096 0 0 0 0 17 1 0 0
/proc/23243/statm: 567 386 93 167 0 398 0
Current children cumulated CPU time (s) 5.09
Current children cumulated vsize (KiB) 2268

[startup+5.30179 s]
/proc/loadavg: 0.92 0.95 0.97 2/65 23244
/proc/meminfo: memFree=828256/2055920 swapFree=4176704/4192956
[pid=23243] ppid=23241 vsize=2268 CPUtime=5.29
/proc/23243/stat : 23243 (march_nn) R 23241 23243 22817 0 -1 4194304 407 0 0 0 529 0 0 0 25 0 1 0 1103576801 2322432 390 1992294400 134512640 135197250 4294956240 18446744073709551615 134618737 0 0 4096 0 0 0 0 17 1 0 0
/proc/23243/statm: 567 390 93 167 0 398 0
Current children cumulated CPU time (s) 5.29
Current children cumulated vsize (KiB) 2268

Child status: 10
Real time (s): 5.38347
CPU time (s): 5.38018
CPU user time (s): 5.37518
CPU system time (s): 0.004999
CPU usage (%): 99.939
Max. virtual memory (cumulated for all children) (KiB): 2268

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.37518
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 412
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= 92

runsolver used 0.009998 second user time and 0.022996 second system time

The end

Launcher Data 

Begin job on node20 at 2009-03-29 08:45:09
IDJOB=1519226
IDBENCH=70745
IDSOLVER=522
FILE ID=node20/1519226-1238309109
PBS_JOBID= 9061015
Free space on /tmp= 65668 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/360/unif-k3-r4.25-v360-c1530-S1684547485-073.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1519226-1238309109/watcher-1519226-1238309109 -o /tmp/evaluation-result-1519226-1238309109/solver-1519226-1238309109 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1519226-1238309109.cnf

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

MD5SUM BENCH= 7978035feeedb8c4f26fadad2c608014
RANDOM SEED=430005243

node20.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		: 3000.235
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		: 3000.235
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:        830024 kB
Buffers:        104912 kB
Cached:        1014564 kB
SwapCached:      10004 kB
Active:         161940 kB
Inactive:       969024 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        830024 kB
SwapTotal:     4192956 kB
SwapFree:      4176704 kB
Dirty:             792 kB
Writeback:           0 kB
Mapped:          16632 kB
Slab:            80932 kB
Committed_AS:  2830912 kB
PageTables:       1404 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= 65664 MiB
End job on node20 at 2009-03-29 08:45:15