Trace number 371815

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, and are wall clock time (not CPU 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 KS 2007-02-08SAT 2.96755 2.96997

General information on the benchmark

Namerandom/OnTreshold/3SAT/v400/
unif-k3-r4.26-v400-c1704-S1561551265-12.SAT.shuffled.cnf
MD5SUMc6a09cb4dcbc2624dfe4aaec1f040fa6
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.031994
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of clauses1704
Sum of the clauses size5112
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31704
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

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 1704 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, 21 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 398 free variables and 1683 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.539
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 147 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 1761 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 1761 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1761 / 400 ) = 4.40
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: 423 JD: 15
0.20/0.21	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: 3129 JD: 15
1.50/1.50	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |*****************
c |******************
c |********************
c |************************
c |*************************
c |**************************
c |****************************
c |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |*****************************************
c |******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
2.89/2.96	c solution bin :: 000110000000000.10101010000000000
2.89/2.96	c direction branchin :: current_rights = 6
2.89/2.96	
c |********************************************************
2.89/2.96	c
2.89/2.96	c main():: nodeCount: 6273
2.89/2.96	c main():: dead ends in main: 181
2.89/2.96	c main():: lookAheadCount: 447006
2.89/2.96	c main():: unitResolveCount: 78080
2.89/2.96	c main():: time=2.960000
2.89/2.96	c main():: necessary_assignments: 1692
2.89/2.96	c main():: bin_sat: 0, bin_unsat 0
2.89/2.96	c main():: doublelook: #: 25943, succes #: 19249
2.89/2.96	c main():: doublelook: overall 6.019 of all possible doublelooks executed
2.89/2.96	c main():: doublelook: succesrate: 74.197, average DL_trigger: 6169.776
2.89/2.96	c main():: SOLUTION VERIFIED :-)
2.89/2.96	s SATISFIABLE
2.89/2.96	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 (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node6/watcher-371815-1177545858 -o ROOT/results/node6/solver-371815-1177545858 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/371815-1177545858/march_ks /tmp/evaluation/371815-1177545858/instance-371815-1177545858.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): 7500 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: 0.20 0.08 0.09 3/77 30901
/proc/meminfo: memFree=1790448/2055924 swapFree=4143416/4192956
[pid=30901] ppid=30899 vsize=796 CPUtime=0
/proc/30901/stat : 30901 (march_ks) R 30899 30901 30811 0 -1 4194304 122 0 0 0 0 0 0 0 18 0 1 0 230623478 815104 105 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134533376 0 0 4096 0 0 0 0 17 1 0 0
/proc/30901/statm: 199 106 52 123 0 74 0

[startup+0.0538121 s]
/proc/loadavg: 0.20 0.08 0.09 3/77 30901
/proc/meminfo: memFree=1790448/2055924 swapFree=4143416/4192956
[pid=30901] ppid=30899 vsize=1192 CPUtime=0.05
/proc/30901/stat : 30901 (march_ks) R 30899 30901 30811 0 -1 4194304 238 0 0 0 5 0 0 0 18 0 1 0 230623478 1220608 221 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134542609 0 0 4096 0 0 0 0 17 1 0 0
/proc/30901/statm: 298 221 73 123 0 173 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1192

[startup+0.101817 s]
/proc/loadavg: 0.20 0.08 0.09 3/77 30901
/proc/meminfo: memFree=1790448/2055924 swapFree=4143416/4192956
[pid=30901] ppid=30899 vsize=1192 CPUtime=0.1
/proc/30901/stat : 30901 (march_ks) R 30899 30901 30811 0 -1 4194304 242 0 0 0 10 0 0 0 18 0 1 0 230623478 1220608 225 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134564838 0 0 4096 0 0 0 0 17 1 0 0
/proc/30901/statm: 298 225 73 123 0 173 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1192

[startup+0.30184 s]
/proc/loadavg: 0.20 0.08 0.09 3/77 30901
/proc/meminfo: memFree=1790448/2055924 swapFree=4143416/4192956
[pid=30901] ppid=30899 vsize=1192 CPUtime=0.3
/proc/30901/stat : 30901 (march_ks) R 30899 30901 30811 0 -1 4194304 253 0 0 0 30 0 0 0 19 0 1 0 230623478 1220608 236 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134538152 0 0 4096 0 0 0 0 17 1 0 0
/proc/30901/statm: 298 236 73 123 0 173 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1192

[startup+0.701887 s]
/proc/loadavg: 0.20 0.08 0.09 3/77 30901
/proc/meminfo: memFree=1790448/2055924 swapFree=4143416/4192956
[pid=30901] ppid=30899 vsize=1324 CPUtime=0.7
/proc/30901/stat : 30901 (march_ks) R 30899 30901 30811 0 -1 4194304 264 0 0 0 70 0 0 0 23 0 1 0 230623478 1355776 247 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134579996 0 0 4096 0 0 0 0 17 1 0 0
/proc/30901/statm: 331 247 73 123 0 206 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1324

[startup+1.50298 s]
/proc/loadavg: 0.26 0.10 0.10 2/78 30902
/proc/meminfo: memFree=1789672/2055924 swapFree=4143416/4192956
[pid=30901] ppid=30899 vsize=1324 CPUtime=1.5
/proc/30901/stat : 30901 (march_ks) R 30899 30901 30811 0 -1 4194304 268 0 0 0 150 0 0 0 25 0 1 0 230623478 1355776 251 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134542758 0 0 4096 0 0 0 0 17 1 0 0
/proc/30901/statm: 331 251 73 123 0 206 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 1324

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

[startup+2.30107 s]
/proc/loadavg: 0.26 0.10 0.10 2/78 30902
/proc/meminfo: memFree=1789544/2055924 swapFree=4143416/4192956
[pid=30901] ppid=30899 vsize=1324 CPUtime=2.29
/proc/30901/stat : 30901 (march_ks) R 30899 30901 30811 0 -1 4194304 281 0 0 0 229 0 0 0 25 0 1 0 230623478 1355776 264 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134584638 0 0 4096 0 0 0 0 17 1 0 0
/proc/30901/statm: 331 264 73 123 0 206 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 1324

[startup+2.70112 s]
/proc/loadavg: 0.26 0.10 0.10 2/78 30902
/proc/meminfo: memFree=1789544/2055924 swapFree=4143416/4192956
[pid=30901] ppid=30899 vsize=1324 CPUtime=2.69
/proc/30901/stat : 30901 (march_ks) R 30899 30901 30811 0 -1 4194304 282 0 0 0 269 0 0 0 25 0 1 0 230623478 1355776 265 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134526476 0 0 4096 0 0 0 0 17 1 0 0
/proc/30901/statm: 331 265 73 123 0 206 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 1324

[startup+2.90114 s]
/proc/loadavg: 0.26 0.10 0.10 2/78 30902
/proc/meminfo: memFree=1789544/2055924 swapFree=4143416/4192956
[pid=30901] ppid=30899 vsize=1324 CPUtime=2.89
/proc/30901/stat : 30901 (march_ks) R 30899 30901 30811 0 -1 4194304 282 0 0 0 289 0 0 0 25 0 1 0 230623478 1355776 265 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134538191 0 0 4096 0 0 0 0 17 1 0 0
/proc/30901/statm: 331 265 73 123 0 206 0
Current children cumulated CPU time (s) 2.89
Current children cumulated vsize (KiB) 1324

Child status: 10
Real time (s): 2.96997
CPU time (s): 2.96755
CPU user time (s): 2.96655
CPU system time (s): 0.000999
CPU usage (%): 99.9186
Max. virtual memory (cumulated for all children) (KiB): 1324

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.96655
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= 283
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= 8
involuntary context switches= 62

runsolver used 0.003999 second user time and 0.011998 second system time

The end

Launcher Data (download as text)

Begin job on node6 on Thu Apr 26 00:04:18 UTC 2007

IDJOB= 371815
IDBENCH= 20024
IDSOLVER= 180
FILE ID= node6/371815-1177545858

PBS_JOBID= 4696540

Free space on /tmp= 66442 MiB

SOLVER NAME= March KS 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v400/unif-k3-r4.26-v400-c1704-S1561551265-12.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/371815-1177545858/march_ks /tmp/evaluation/371815-1177545858/instance-371815-1177545858.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node6/watcher-371815-1177545858 -o ROOT/results/node6/solver-371815-1177545858 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/371815-1177545858/march_ks /tmp/evaluation/371815-1177545858/instance-371815-1177545858.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  c6a09cb4dcbc2624dfe4aaec1f040fa6

RANDOM SEED= 270533643

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node6.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.232
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		: 3000.232
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:      2055924 kB
MemFree:       1790792 kB
Buffers:         38420 kB
Cached:         156904 kB
SwapCached:      17652 kB
Active:          89012 kB
Inactive:       132964 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1790792 kB
SwapTotal:     4192956 kB
SwapFree:      4143416 kB
Dirty:            2364 kB
Writeback:           0 kB
Mapped:          29688 kB
Slab:            28704 kB
Committed_AS:  7148072 kB
PageTables:       1784 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= 66442 MiB

End job on node6 on Thu Apr 26 00:04:22 UTC 2007