Trace number 1518506

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 2.10868 2.10997

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/400/
unif-k3-r4.25-v400-c1700-S981523907-072.cnf
MD5SUMcf49ce63274aed23e9ae314dbfe30852
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.020995
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of clauses1700
Sum of the clauses size5100
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31700
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 400 variables and 1700 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, 12 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 398 free variables and 1688 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.463
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 198 duplicate clauses
0.00/0.01	c resolvent_look() :: found 111 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 400 variables and 1799 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 400 variabels and 1799 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1799 / 400 ) = 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 = 398
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: 23
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: 278
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 |******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| ( 2/999) NodeCount: 2004
0.59/0.65	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 |***********************************************************
2.10/2.10	c |0001001010000000000000000000000000000$$$$$$$$$$$$$$$$$$$$$$$$$$|
2.10/2.10	
c |***********************************************************
2.10/2.10	c
2.10/2.10	c main():: nodeCount: 6140
2.10/2.10	c main():: dead ends in main: 36
2.10/2.10	c main():: lookAheadCount: 481656
2.10/2.10	c main():: unitResolveCount: 39782
2.10/2.10	c main():: time=2.100000
2.10/2.10	c main():: necessary_assignments: 766
2.10/2.10	c main():: bin_sat: 0, bin_unsat 0
2.10/2.10	c main():: doublelook: #: 14979, succes #: 7220
2.10/2.10	c main():: doublelook: overall 3.148 of all possible doublelooks executed
2.10/2.10	c main():: doublelook: succesrate: 48.201, average DL_trigger: 48.122
2.10/2.10	c main():: SOLUTION VERIFIED :-)
2.10/2.10	s SATISFIABLE
2.10/2.10	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 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 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 -101 -102 103 -104 105 -106 107 108 109 -110 111 112 113 114 115 116 117 119 120 121 -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 -150 151 -152 -153 154 -155 -156 -157 158 -160 161 -162 163 164 165 168 -169 170 171 172 173 174 -175 176 -177 -178 179 180 181 -182 183 184 -185 -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 -214 216 -217 -218 219 -220 -221 -222 223 -224 -225 -226 -227 -229 -230 -231 232 -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 -262 -263 -264 265 267 268 -269 -270 -271 272 273 -274 -275 -276 277 -278 279 280 281 -282 -283 -284 -285 286 287 -288 -289 291 292 293 -294 -295 296 297 299 -300 -301 -302 -303 -304 305 -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 -344 345 346 -347 348 -349 -350 351 352 -353 354 356 357 -358 359 360 362 -363 364 365 -366 367 -368 369 370 -371 372 -373 374 -375 376 377 -378 -379 -380 -381 -382 -384 -385 386 387 -389 -390 -391 -393 -394 395 -396 -397 398 -399 -400 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-1518506-1238300765/watcher-1518506-1238300765 -o /tmp/evaluation-result-1518506-1238300765/solver-1518506-1238300765 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1518506-1238300765.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: 0.99 0.98 0.99 3/69 9804
/proc/meminfo: memFree=893288/2055920 swapFree=4169124/4192956
[pid=9804] ppid=9802 vsize=976 CPUtime=0
/proc/9804/stat : 9804 (march_nn) R 9802 9804 9634 0 -1 4194304 139 0 0 0 0 0 0 0 18 0 1 0 1102739697 999424 122 1992294400 134512640 135197250 4294956240 18446744073709551615 134697286 0 0 4096 0 0 0 0 17 1 0 0
/proc/9804/statm: 244 122 67 167 0 75 0

[startup+0.0325919 s]
/proc/loadavg: 0.99 0.98 0.99 3/69 9804
/proc/meminfo: memFree=893288/2055920 swapFree=4169124/4192956
[pid=9804] ppid=9802 vsize=1556 CPUtime=0.02
/proc/9804/stat : 9804 (march_nn) R 9802 9804 9634 0 -1 4194304 242 0 0 0 2 0 0 0 18 0 1 0 1102739697 1593344 225 1992294400 134512640 135197250 4294956240 18446744073709551615 134525445 0 0 4096 0 0 0 0 17 1 0 0
/proc/9804/statm: 389 225 93 167 0 220 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1556

[startup+0.1016 s]
/proc/loadavg: 0.99 0.98 0.99 3/69 9804
/proc/meminfo: memFree=893288/2055920 swapFree=4169124/4192956
[pid=9804] ppid=9802 vsize=1556 CPUtime=0.09
/proc/9804/stat : 9804 (march_nn) R 9802 9804 9634 0 -1 4194304 258 0 0 0 9 0 0 0 18 0 1 0 1102739697 1593344 241 1992294400 134512640 135197250 4294956240 18446744073709551615 134539304 0 0 4096 0 0 0 0 17 1 0 0
/proc/9804/statm: 389 241 93 167 0 220 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1556

[startup+0.30162 s]
/proc/loadavg: 0.99 0.98 0.99 3/69 9804
/proc/meminfo: memFree=893288/2055920 swapFree=4169124/4192956
[pid=9804] ppid=9802 vsize=1688 CPUtime=0.29
/proc/9804/stat : 9804 (march_nn) R 9802 9804 9634 0 -1 4194304 276 0 0 0 29 0 0 0 19 0 1 0 1102739697 1728512 259 1992294400 134512640 135197250 4294956240 18446744073709551615 134539297 0 0 4096 0 0 0 0 17 1 0 0
/proc/9804/statm: 422 259 93 167 0 253 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1688

[startup+0.701662 s]
/proc/loadavg: 0.99 0.98 0.99 3/69 9804
/proc/meminfo: memFree=893288/2055920 swapFree=4169124/4192956
[pid=9804] ppid=9802 vsize=1688 CPUtime=0.69
/proc/9804/stat : 9804 (march_nn) R 9802 9804 9634 0 -1 4194304 290 0 0 0 69 0 0 0 23 0 1 0 1102739697 1728512 273 1992294400 134512640 135197250 4294956240 18446744073709551615 134525315 0 0 4096 0 0 0 0 17 1 0 0
/proc/9804/statm: 422 273 93 167 0 253 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1688

[startup+1.50174 s]
/proc/loadavg: 0.99 0.98 0.99 2/70 9805
/proc/meminfo: memFree=892384/2055920 swapFree=4169124/4192956
[pid=9804] ppid=9802 vsize=1900 CPUtime=1.49
/proc/9804/stat : 9804 (march_nn) R 9802 9804 9634 0 -1 4194304 326 0 0 0 149 0 0 0 25 0 1 0 1102739697 1945600 309 1992294400 134512640 135197250 4294956240 18446744073709551615 134525339 0 0 4096 0 0 0 0 17 1 0 0
/proc/9804/statm: 475 309 93 167 0 306 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1900

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

[startup+1.90178 s]
/proc/loadavg: 0.99 0.98 0.99 2/70 9805
/proc/meminfo: memFree=892384/2055920 swapFree=4169124/4192956
[pid=9804] ppid=9802 vsize=1900 CPUtime=1.89
/proc/9804/stat : 9804 (march_nn) R 9802 9804 9634 0 -1 4194304 332 0 0 0 189 0 0 0 25 0 1 0 1102739697 1945600 315 1992294400 134512640 135197250 4294956240 18446744073709551615 134713092 0 0 4096 0 0 0 0 17 1 0 0
/proc/9804/statm: 475 315 93 167 0 306 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 1900

[startup+2.1018 s]
/proc/loadavg: 0.99 0.98 0.99 2/70 9805
/proc/meminfo: memFree=892192/2055920 swapFree=4169124/4192956
[pid=9804] ppid=9802 vsize=1900 CPUtime=2.1
/proc/9804/stat : 9804 (march_nn) R 9802 9804 9634 0 -1 4194304 335 0 0 0 210 0 0 0 25 0 1 0 1102739697 1945600 318 1992294400 134512640 135197250 4294956240 18446744073709551615 134525318 0 0 4096 0 0 0 0 17 1 0 0
/proc/9804/statm: 475 318 93 167 0 306 0
Current children cumulated CPU time (s) 2.1
Current children cumulated vsize (KiB) 1900

Child status: 10
Real time (s): 2.10997
CPU time (s): 2.10868
CPU user time (s): 2.10568
CPU system time (s): 0.002999
CPU usage (%): 99.9386
Max. virtual memory (cumulated for all children) (KiB): 1900

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.10568
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= 343
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 0.007998 second user time and 0.015997 second system time

The end

Launcher Data 

Begin job on node44 at 2009-03-29 06:26:06
IDJOB=1518506
IDBENCH=70685
IDSOLVER=522
FILE ID=node44/1518506-1238300765
PBS_JOBID= 9061009
Free space on /tmp= 66400 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/400/unif-k3-r4.25-v400-c1700-S981523907-072.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1518506-1238300765/watcher-1518506-1238300765 -o /tmp/evaluation-result-1518506-1238300765/solver-1518506-1238300765 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1518506-1238300765.cnf

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

MD5SUM BENCH= cf49ce63274aed23e9ae314dbfe30852
RANDOM SEED=401368811

node44.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		: 3000.241
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		: 3000.241
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:        893704 kB
Buffers:        107980 kB
Cached:         943136 kB
SwapCached:      13220 kB
Active:         355360 kB
Inactive:       710516 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        893704 kB
SwapTotal:     4192956 kB
SwapFree:      4169124 kB
Dirty:             992 kB
Writeback:           0 kB
Mapped:          18184 kB
Slab:            81744 kB
Committed_AS:  2546512 kB
PageTables:       1796 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= 66400 MiB
End job on node44 at 2009-03-29 06:26:08