Trace number 1519094

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 3.3155 3.31932

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/380/
unif-k3-r4.25-v380-c1615-S1674394075-027.cnf
MD5SUM6324d57907fe9330330d9cdcd71a4730
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.009998
Satisfiable
(Un)Satisfiability was proved
Number of variables380
Number of clauses1615
Sum of the clauses size4845
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31615
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.01	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.01	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.00/0.01	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.00/0.01	c main()::
0.00/0.01	c initFormula():: searching for DIMACS p-line....
0.00/0.01	c initFormula():: the DIMACS p-line indicates a CNF of 380 variables and 1615 clauses.
0.00/0.01	c parseCNF():: parsing....
0.00/0.01	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.01	c runParser():: parsing was successful, warming up engines...
0.00/0.01	c simplify_formula():: removed 0 tautological, 5 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 379 free variables and 1610 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.565
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 178 duplicate clauses
0.00/0.01	c resolvent_look() :: found 97 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 380 variables and 1707 clauses.
0.00/0.01	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.00/0.01	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.00/0.01	c transformTo3SAT():: the transformation yielded 380 variabels and 1707 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1707 / 380 ) = 4.49
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 = 379
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: 24
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: 289
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: 1971
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 |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| ( 3/999) NodeCount: 8264
3.09/3.15	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |*****
c |******
c |*******
c |********
c |*********
c |**********
c |***********
c |************
c |*************
c |**************
c |***************
3.30/3.31	c |11000001010000000000000000000000000000000000000000$$$$$$$$$$$$$|
3.30/3.31	
c |***************
3.30/3.31	c
3.30/3.31	c main():: nodeCount: 8749
3.30/3.31	c main():: dead ends in main: 106
3.30/3.31	c main():: lookAheadCount: 680258
3.30/3.31	c main():: unitResolveCount: 76205
3.30/3.31	c main():: time=3.310000
3.30/3.31	c main():: necessary_assignments: 1685
3.30/3.31	c main():: bin_sat: 0, bin_unsat 0
3.30/3.31	c main():: doublelook: #: 23866, succes #: 12945
3.30/3.31	c main():: doublelook: overall 3.566 of all possible doublelooks executed
3.30/3.31	c main():: doublelook: succesrate: 54.240, average DL_trigger: 45.424
3.30/3.31	c main():: SOLUTION VERIFIED :-)
3.30/3.31	s SATISFIABLE
3.30/3.31	v 1 2 3 -4 5 6 7 -8 9 10 -11 -12 -13 -14 16 17 18 19 -21 22 -23 24 25 -26 -27 -28 29 30 31 32 -33 -34 35 -37 38 -39 40 -41 -42 43 -44 45 46 -47 48 -49 -50 -51 52 -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 99 100 101 102 103 104 -106 -107 108 109 -110 -111 -112 -113 114 115 -116 117 -118 119 -120 -121 -122 -123 -125 -126 127 -128 129 -130 131 132 133 134 135 136 -137 -138 -139 140 141 142 144 -145 146 147 148 149 -150 151 -152 -154 -155 -156 157 158 159 -160 161 162 163 -164 -165 166 -167 168 -169 170 171 -172 173 -174 -175 176 177 178 179 -180 -181 182 183 -184 -185 186 -187 188 190 191 192 -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 -235 237 -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 -292 293 -294 -295 296 -297 -298 299 -300 -301 302 -303 -304 -305 306 307 -308 309 -310 -311 312 313 315 316 317 -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 -353 -354 -355 -356 -357 -358 -359 360 361 362 -364 -365 -366 -367 -368 -369 -370 -371 -372 -373 374 375 376 -377 -378 -379 -380 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-1519094-1238308301/watcher-1519094-1238308301 -o /tmp/evaluation-result-1519094-1238308301/solver-1519094-1238308301 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1519094-1238308301.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 1.00 1.00 3/70 346
/proc/meminfo: memFree=841808/2055920 swapFree=4170584/4192956
[pid=346] ppid=344 vsize=972 CPUtime=0
/proc/346/stat : 346 (march_nn) R 344 346 32422 0 -1 4194304 138 0 0 0 0 0 0 0 18 0 1 0 1103492750 995328 121 1992294400 134512640 135197250 4294956240 18446744073709551615 134560929 0 0 4096 0 0 0 0 17 1 0 0
/proc/346/statm: 243 121 67 167 0 74 0

[startup+0.027058 s]
/proc/loadavg: 1.00 1.00 1.00 3/70 346
/proc/meminfo: memFree=841808/2055920 swapFree=4170584/4192956
[pid=346] ppid=344 vsize=1536 CPUtime=0.02
/proc/346/stat : 346 (march_nn) R 344 346 32422 0 -1 4194304 236 0 0 0 2 0 0 0 18 0 1 0 1103492750 1572864 219 1992294400 134512640 135197250 4294956240 18446744073709551615 134525351 0 0 4096 0 0 0 0 17 1 0 0
/proc/346/statm: 384 219 93 167 0 215 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1536

[startup+0.10107 s]
/proc/loadavg: 1.00 1.00 1.00 3/70 346
/proc/meminfo: memFree=841808/2055920 swapFree=4170584/4192956
[pid=346] ppid=344 vsize=1536 CPUtime=0.09
/proc/346/stat : 346 (march_nn) R 344 346 32422 0 -1 4194304 259 0 0 0 9 0 0 0 18 0 1 0 1103492750 1572864 242 1992294400 134512640 135197250 4294956240 18446744073709551615 134552722 0 0 4096 0 0 0 0 17 1 0 0
/proc/346/statm: 384 242 93 167 0 215 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1536

[startup+0.301107 s]
/proc/loadavg: 1.00 1.00 1.00 3/70 346
/proc/meminfo: memFree=841808/2055920 swapFree=4170584/4192956
[pid=346] ppid=344 vsize=1688 CPUtime=0.29
/proc/346/stat : 346 (march_nn) R 344 346 32422 0 -1 4194304 276 0 0 0 29 0 0 0 19 0 1 0 1103492750 1728512 259 1992294400 134512640 135197250 4294956240 18446744073709551615 134525420 0 0 4096 0 0 0 0 17 1 0 0
/proc/346/statm: 422 259 93 167 0 253 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1688

[startup+0.70118 s]
/proc/loadavg: 1.00 1.00 1.00 3/70 346
/proc/meminfo: memFree=841808/2055920 swapFree=4170584/4192956
[pid=346] ppid=344 vsize=1688 CPUtime=0.69
/proc/346/stat : 346 (march_nn) R 344 346 32422 0 -1 4194304 297 0 0 0 69 0 0 0 22 0 1 0 1103492750 1728512 280 1992294400 134512640 135197250 4294956240 18446744073709551615 134649018 0 0 4096 0 0 0 0 17 1 0 0
/proc/346/statm: 422 281 93 167 0 253 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1688

[startup+1.50133 s]
/proc/loadavg: 1.00 1.00 1.00 2/71 347
/proc/meminfo: memFree=840968/2055920 swapFree=4170584/4192956
[pid=346] ppid=344 vsize=1992 CPUtime=1.49
/proc/346/stat : 346 (march_nn) R 344 346 32422 0 -1 4194304 341 0 0 0 149 0 0 0 25 0 1 0 1103492750 2039808 324 1992294400 134512640 135197250 4294956240 18446744073709551615 134525291 0 0 4096 0 0 0 0 17 1 0 0
/proc/346/statm: 498 324 93 167 0 329 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1992

[startup+3.10162 s]
/proc/loadavg: 1.00 1.00 1.00 2/71 347
/proc/meminfo: memFree=840648/2055920 swapFree=4170584/4192956
[pid=346] ppid=344 vsize=2060 CPUtime=3.09
/proc/346/stat : 346 (march_nn) R 344 346 32422 0 -1 4194304 373 0 0 0 309 0 0 0 25 0 1 0 1103492750 2109440 356 1992294400 134512640 135197250 4294956240 18446744073709551615 134597139 0 0 4096 0 0 0 0 17 1 0 0
/proc/346/statm: 515 356 93 167 0 346 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2060

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

[startup+3.30565 s]
/proc/loadavg: 1.00 1.00 1.00 2/71 347
/proc/meminfo: memFree=840456/2055920 swapFree=4170584/4192956
[pid=346] ppid=344 vsize=2160 CPUtime=3.3
/proc/346/stat : 346 (march_nn) R 344 346 32422 0 -1 4194304 377 0 0 0 330 0 0 0 25 0 1 0 1103492750 2211840 360 1992294400 134512640 135197250 4294956240 18446744073709551615 134525324 0 0 4096 0 0 0 0 17 1 0 0
/proc/346/statm: 540 360 93 167 0 371 0
Current children cumulated CPU time (s) 3.3
Current children cumulated vsize (KiB) 2160

Child status: 10
Real time (s): 3.31932
CPU time (s): 3.3155
CPU user time (s): 3.3145
CPU system time (s): 0.000999
CPU usage (%): 99.8847
Max. virtual memory (cumulated for all children) (KiB): 2160

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.3145
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 390
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= 16

runsolver used 0.008998 second user time and 0.018997 second system time

The end

Launcher Data 

Begin job on node45 at 2009-03-29 08:31:41
IDJOB=1519094
IDBENCH=70734
IDSOLVER=522
FILE ID=node45/1519094-1238308301
PBS_JOBID= 9061023
Free space on /tmp= 66348 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/380/unif-k3-r4.25-v380-c1615-S1674394075-027.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1519094-1238308301/watcher-1519094-1238308301 -o /tmp/evaluation-result-1519094-1238308301/solver-1519094-1238308301 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1519094-1238308301.cnf

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

MD5SUM BENCH= 6324d57907fe9330330d9cdcd71a4730
RANDOM SEED=639015369

node45.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		: 3000.285
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		: 3000.285
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:        842224 kB
Buffers:         98428 kB
Cached:        1010152 kB
SwapCached:      11516 kB
Active:         207020 kB
Inactive:       914500 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        842224 kB
SwapTotal:     4192956 kB
SwapFree:      4170584 kB
Dirty:             792 kB
Writeback:           0 kB
Mapped:          18632 kB
Slab:            77500 kB
Committed_AS:  2507344 kB
PageTables:       1900 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= 66348 MiB
End job on node45 at 2009-03-29 08:31:45