Trace number 1626909

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
SAT07 reference solver: March KS 2007-02-08SAT 2.24866 2.25113

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/400/
unif-k3-r4.25-v400-c1700-S1767425240-073.cnf
MD5SUMa3570ddee79c19b1c54131a205337743
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.022996
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) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
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, 11 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 399 free variables and 1689 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.570
0.00/0.01	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.00/0.01	c using 3-SAT heuristics (occurence based diff)
0.00/0.01	c longest clause has size 3
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 150 duplicate clauses
0.00/0.01	c resolvent_look() :: found 78 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 400 variables and 1767 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 1767 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1767 / 400 ) = 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 dynamic_preselect_setsize :: off
0.00/0.01	c suggested doublelook initial :: 0
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 0 NC: 368 JD: 17
0.09/0.17	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| 1 NC: 3468 JD: 17
1.49/1.57	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |*****************
c |******************
c |********************
c |************************
c |*************************
c |**************************
c |****************************
c |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |*****************************************
c |******************************************
c |********************************************
2.20/2.25	c solution bin :: 01001000000000000.000000100100100
2.20/2.25	c direction branchin :: current_rights = 5
2.20/2.25	
c |********************************************
2.20/2.25	c
2.20/2.25	c main():: nodeCount: 5110
2.20/2.25	c main():: dead ends in main: 165
2.20/2.25	c main():: lookAheadCount: 356929
2.20/2.25	c main():: unitResolveCount: 67791
2.20/2.25	c main():: time=2.240000
2.20/2.25	c main():: necessary_assignments: 1408
2.20/2.25	c main():: bin_sat: 0, bin_unsat 0
2.20/2.25	c main():: doublelook: #: 20816, succes #: 15402
2.20/2.25	c main():: doublelook: overall 6.048 of all possible doublelooks executed
2.20/2.25	c main():: doublelook: succesrate: 73.991, average DL_trigger: 6329.007
2.20/2.25	c main():: SOLUTION VERIFIED :-)
2.20/2.25	s SATISFIABLE
2.20/2.25	v 1 2 -3 -4 -5 -6 7 -8 -9 10 11 -12 -13 14 15 -16 17 -18 19 -20 21 22 -23 24 25 -26 27 -28 29 30 31 -32 -33 34 35 -36 37 -38 39 40 41 -42 -43 -44 -45 46 47 48 -49 50 51 -52 -53 -54 55 -56 57 58 59 60 61 -62 -63 -64 -65 66 67 68 69 70 71 -72 73 -74 -75 -76 77 -78 -79 -80 -81 -82 83 -84 -85 86 87 -88 89 90 -91 92 -93 94 95 -96 -97 98 99 -100 -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 -147 148 149 150 -151 -152 153 -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 -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 -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 -352 353 354 355 356 357 358 -359 360 361 -362 363 364 365 366 367 -368 -369 -370 371 372 -373 374 -375 376 377 378 379 -380 381 382 383 -384 385 -386 387 -388 -389 390 391 -392 -393 394 395 -396 -397 398 -399 400 0

Verifier Data 

OK

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1626909-1240141677/watcher-1626909-1240141677 -o /tmp/evaluation-result-1626909-1240141677/solver-1626909-1240141677 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1626909-1240141677.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 6000 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: 0.96 0.97 0.99 3/64 26413
/proc/meminfo: memFree=1414208/2055920 swapFree=4192956/4192956
[pid=26413] ppid=26411 vsize=796 CPUtime=0
/proc/26413/stat : 26413 (march_ks) R 26411 26413 25255 0 -1 4194304 124 0 0 0 0 0 0 0 18 0 1 0 42195005 815104 107 1992294400 134512640 135019032 4294956240 18446744073709551615 134662703 0 0 4096 0 0 0 0 17 0 0 0
/proc/26413/statm: 199 107 52 123 0 74 0

[startup+0.0795669 s]
/proc/loadavg: 0.96 0.97 0.99 3/64 26413
/proc/meminfo: memFree=1414208/2055920 swapFree=4192956/4192956
[pid=26413] ppid=26411 vsize=1192 CPUtime=0.07
/proc/26413/stat : 26413 (march_ks) R 26411 26413 25255 0 -1 4194304 241 0 0 0 7 0 0 0 18 0 1 0 42195005 1220608 224 1992294400 134512640 135019032 4294956240 18446744073709551615 134526505 0 0 4096 0 0 0 0 17 0 0 0
/proc/26413/statm: 298 224 73 123 0 173 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1192

[startup+0.102569 s]
/proc/loadavg: 0.96 0.97 0.99 3/64 26413
/proc/meminfo: memFree=1414208/2055920 swapFree=4192956/4192956
[pid=26413] ppid=26411 vsize=1192 CPUtime=0.09
/proc/26413/stat : 26413 (march_ks) R 26411 26413 25255 0 -1 4194304 242 0 0 0 9 0 0 0 18 0 1 0 42195005 1220608 225 1992294400 134512640 135019032 4294956240 18446744073709551615 134598130 0 0 4096 0 0 0 0 17 0 0 0
/proc/26413/statm: 298 225 73 123 0 173 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1192

[startup+0.301609 s]
/proc/loadavg: 0.96 0.97 0.99 3/64 26413
/proc/meminfo: memFree=1414208/2055920 swapFree=4192956/4192956
[pid=26413] ppid=26411 vsize=1192 CPUtime=0.29
/proc/26413/stat : 26413 (march_ks) R 26411 26413 25255 0 -1 4194304 255 0 0 0 29 0 0 0 19 0 1 0 42195005 1220608 238 1992294400 134512640 135019032 4294956240 18446744073709551615 134538194 0 0 4096 0 0 0 0 17 0 0 0
/proc/26413/statm: 298 238 73 123 0 173 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1192

[startup+0.701672 s]
/proc/loadavg: 0.96 0.97 0.99 3/64 26413
/proc/meminfo: memFree=1414208/2055920 swapFree=4192956/4192956
[pid=26413] ppid=26411 vsize=1324 CPUtime=0.69
/proc/26413/stat : 26413 (march_ks) R 26411 26413 25255 0 -1 4194304 266 0 0 0 69 0 0 0 23 0 1 0 42195005 1355776 249 1992294400 134512640 135019032 4294956240 18446744073709551615 134542659 0 0 4096 0 0 0 0 17 0 0 0
/proc/26413/statm: 331 249 73 123 0 206 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1324

[startup+1.5018 s]
/proc/loadavg: 0.96 0.97 0.99 2/65 26414
/proc/meminfo: memFree=1413432/2055920 swapFree=4192956/4192956
[pid=26413] ppid=26411 vsize=1324 CPUtime=1.49
/proc/26413/stat : 26413 (march_ks) R 26411 26413 25255 0 -1 4194304 275 0 0 0 149 0 0 0 25 0 1 0 42195005 1355776 258 1992294400 134512640 135019032 4294956240 18446744073709551615 134526496 0 0 4096 0 0 0 0 17 0 0 0
/proc/26413/statm: 331 258 73 123 0 206 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1324

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

[startup+1.90187 s]
/proc/loadavg: 0.96 0.97 0.99 2/65 26414
/proc/meminfo: memFree=1413432/2055920 swapFree=4192956/4192956
[pid=26413] ppid=26411 vsize=1324 CPUtime=1.89
/proc/26413/stat : 26413 (march_ks) R 26411 26413 25255 0 -1 4194304 277 0 0 0 189 0 0 0 25 0 1 0 42195005 1355776 260 1992294400 134512640 135019032 4294956240 18446744073709551615 134526499 0 0 4096 0 0 0 0 17 0 0 0
/proc/26413/statm: 331 260 73 123 0 206 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 1324

[startup+2.10191 s]
/proc/loadavg: 0.96 0.97 0.99 2/65 26414
/proc/meminfo: memFree=1413240/2055920 swapFree=4192956/4192956
[pid=26413] ppid=26411 vsize=1324 CPUtime=2.1
/proc/26413/stat : 26413 (march_ks) R 26411 26413 25255 0 -1 4194304 277 0 0 0 210 0 0 0 25 0 1 0 42195005 1355776 260 1992294400 134512640 135019032 4294956240 18446744073709551615 134564744 0 0 4096 0 0 0 0 17 0 0 0
/proc/26413/statm: 331 260 73 123 0 206 0
Current children cumulated CPU time (s) 2.1
Current children cumulated vsize (KiB) 1324

[startup+2.20592 s]
/proc/loadavg: 0.96 0.97 0.99 2/65 26414
/proc/meminfo: memFree=1413240/2055920 swapFree=4192956/4192956
[pid=26413] ppid=26411 vsize=1324 CPUtime=2.2
/proc/26413/stat : 26413 (march_ks) R 26411 26413 25255 0 -1 4194304 277 0 0 0 220 0 0 0 25 0 1 0 42195005 1355776 260 1992294400 134512640 135019032 4294956240 18446744073709551615 134542770 0 0 4096 0 0 0 0 17 0 0 0
/proc/26413/statm: 331 260 73 123 0 206 0
Current children cumulated CPU time (s) 2.2
Current children cumulated vsize (KiB) 1324

Child status: 10
Real time (s): 2.25113
CPU time (s): 2.24866
CPU user time (s): 2.24666
CPU system time (s): 0.001999
CPU usage (%): 99.8903
Max. virtual memory (cumulated for all children) (KiB): 1324

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.24666
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 279
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 0.005999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node57 at 2009-04-19 13:47:57
IDJOB=1626909
IDBENCH=70689
IDSOLVER=582
FILE ID=node57/1626909-1240141677
PBS_JOBID= 9157899
Free space on /tmp= 66440 MiB

SOLVER NAME= SAT07 reference solver: March KS 2007-02-08
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/400/unif-k3-r4.25-v400-c1700-S1767425240-073.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1626909-1240141677/watcher-1626909-1240141677 -o /tmp/evaluation-result-1626909-1240141677/solver-1626909-1240141677 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1626909-1240141677.cnf            

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= a3570ddee79c19b1c54131a205337743
RANDOM SEED=1119864881

node57.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		: 3000.256
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		: 3000.256
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:       1414696 kB
Buffers:         83824 kB
Cached:         480644 kB
SwapCached:          0 kB
Active:         340788 kB
Inactive:       237520 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1414696 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            2992 kB
Writeback:           0 kB
Mapped:          23616 kB
Slab:            49044 kB
Committed_AS:   179892 kB
PageTables:       1388 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= 66436 MiB
End job on node57 at 2009-04-19 13:48:00