Trace number 1628217

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_hi hiSAT 3.58145 3.5834

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/420/
unif-k3-r4.25-v420-c1785-S1778559297-006.cnf
MD5SUMa5462f4ed0be2c72f8dfc94f9311f583
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.114982
Satisfiable
(Un)Satisfiability was proved
Number of variables420
Number of clauses1785
Sum of the clauses size5355
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31785
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.01/0.01	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.01/0.01	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.01/0.01	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.01/0.01	c main()::
0.01/0.01	c initFormula():: searching for DIMACS p-line....
0.01/0.01	c initFormula():: the DIMACS p-line indicates a CNF of 420 variables and 1785 clauses.
0.01/0.01	c parseCNF():: parsing....
0.01/0.01	c parseCNF():: the CNF contains 0 unary clauses.
0.01/0.01	c runParser():: parsing was successful, warming up engines...
0.01/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.01/0.01	c preprocessing fase I completed:: there are now 420 free variables and 1785 clauses.
0.01/0.01	c stat :: sign balance is biased by 0.458
0.01/0.01	c using 3-SAT heuristics (occurence based diff)
0.01/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.01/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 151 duplicate clauses
0.01/0.01	c resolvent_look() :: found 78 resolvents
0.01/0.01	c lessRedundantTransformation():: nothing to be done.
0.01/0.01	c transformTo3SAT():: you gave me 420 variables and 1863 clauses.
0.01/0.01	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.01/0.01	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.01/0.01	c transformTo3SAT():: the transformation yielded 420 variabels and 1863 clauses.
0.01/0.01	c main():: clause / variable ratio: ( 1863 / 420 ) = 4.44
0.01/0.01	c longest clause has size 3
0.01/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.01/0.01	c number of free variables = 420
0.01/0.01	c dynamic_preselect_setsize :: off
0.01/0.01	c main():: all systems go!
0.01/0.01	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| ( 0/18) NodeCount: 225
0.09/0.11	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| ( 1/18) NodeCount: 1964
0.79/0.86	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 |***************************************************************
3.49/3.58	c |000000010001000000.0001000100010000000000000000$$$$$$$$$$$$$$$$$|
3.49/3.58	
c |***************************************************************
3.49/3.58	c
3.49/3.58	c main():: nodeCount: 8227
3.49/3.58	c main():: dead ends in main: 236
3.49/3.58	c main():: lookAheadCount: 542791
3.49/3.58	c main():: unitResolveCount: 95691
3.49/3.58	c main():: time=3.580000
3.49/3.58	c main():: necessary_assignments: 2098
3.49/3.58	c main():: bin_sat: 0, bin_unsat 0
3.49/3.58	c main():: doublelook: #: 29421, succes #: 20286
3.49/3.58	c main():: doublelook: overall 5.601 of all possible doublelooks executed
3.49/3.58	c main():: doublelook: succesrate: 68.951, average DL_trigger: 45.536
3.49/3.58	c main():: SOLUTION VERIFIED :-)
3.49/3.58	s SATISFIABLE
3.49/3.58	v -1 -2 3 -4 -5 -7 8 -9 10 11 12 -14 15 -16 17 -18 19 -20 21 22 -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 -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 -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 -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 -279 281 282 283 284 -285 286 287 288 289 290 -291 -292 -293 294 295 -296 298 299 -301 -302 -303 -304 -305 306 307 309 -310 -311 -312 -314 -315 -316 -317 -318 -319 320 321 322 323 -324 325 -326 -327 -328 -329 -330 -331 -332 333 335 336 -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 -372 373 374 375 -376 -377 -378 -379 -380 -381 382 383 384 385 -386 -387 -388 -389 390 -391 -393 394 -395 396 397 398 399 -400 401 402 -403 -404 405 406 407 408 -409 410 411 -412 413 -414 -415 -417 418 -419 -420 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-1628217-1240141229/watcher-1628217-1240141229 -o /tmp/evaluation-result-1628217-1240141229/solver-1628217-1240141229 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1628217-1240141229.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: 1.00 1.00 1.00 3/64 22596
/proc/meminfo: memFree=1047032/2055920 swapFree=4192956/4192956
[pid=22596] ppid=22594 vsize=984 CPUtime=0
/proc/22596/stat : 22596 (march_hi) R 22594 22596 21878 0 -1 4194304 140 0 0 0 0 0 0 0 18 0 1 0 42151802 1007616 123 1992294400 134512640 135197378 4294956240 18446744073709551615 134535888 0 0 4096 0 0 0 0 17 0 0 0
/proc/22596/statm: 246 123 66 167 0 77 0

[startup+0.0133489 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 22596
/proc/meminfo: memFree=1047032/2055920 swapFree=4192956/4192956
[pid=22596] ppid=22594 vsize=984 CPUtime=0.01
/proc/22596/stat : 22596 (march_hi) R 22594 22596 21878 0 -1 4194304 165 0 0 0 1 0 0 0 18 0 1 0 42151802 1007616 148 1992294400 134512640 135197378 4294956240 18446744073709551615 134565222 0 0 4096 0 0 0 0 17 0 0 0
/proc/22596/statm: 246 148 81 167 0 77 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 984

[startup+0.101359 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 22596
/proc/meminfo: memFree=1047032/2055920 swapFree=4192956/4192956
[pid=22596] ppid=22594 vsize=1580 CPUtime=0.09
/proc/22596/stat : 22596 (march_hi) R 22594 22596 21878 0 -1 4194304 264 0 0 0 9 0 0 0 18 0 1 0 42151802 1617920 247 1992294400 134512640 135197378 4294956240 18446744073709551615 134539266 0 0 4096 0 0 0 0 17 0 0 0
/proc/22596/statm: 395 247 91 167 0 226 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1580

[startup+0.301382 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 22596
/proc/meminfo: memFree=1047032/2055920 swapFree=4192956/4192956
[pid=22596] ppid=22594 vsize=1712 CPUtime=0.29
/proc/22596/stat : 22596 (march_hi) R 22594 22596 21878 0 -1 4194304 279 0 0 0 29 0 0 0 19 0 1 0 42151802 1753088 262 1992294400 134512640 135197378 4294956240 18446744073709551615 134552735 0 0 4096 0 0 0 0 17 0 0 0
/proc/22596/statm: 428 262 91 167 0 259 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1712

[startup+0.701429 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 22596
/proc/meminfo: memFree=1047032/2055920 swapFree=4192956/4192956
[pid=22596] ppid=22594 vsize=1712 CPUtime=0.69
/proc/22596/stat : 22596 (march_hi) R 22594 22596 21878 0 -1 4194304 293 0 0 0 69 0 0 0 23 0 1 0 42151802 1753088 276 1992294400 134512640 135197378 4294956240 18446744073709551615 134601539 0 0 4096 0 0 0 0 17 0 0 0
/proc/22596/statm: 428 276 91 167 0 259 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1712

[startup+1.50152 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 22597
/proc/meminfo: memFree=1046192/2055920 swapFree=4192956/4192956
[pid=22596] ppid=22594 vsize=1856 CPUtime=1.49
/proc/22596/stat : 22596 (march_hi) R 22594 22596 21878 0 -1 4194304 304 0 0 0 149 0 0 0 25 0 1 0 42151802 1900544 287 1992294400 134512640 135197378 4294956240 18446744073709551615 134548501 0 0 4096 0 0 0 0 17 0 0 0
/proc/22596/statm: 464 287 91 167 0 295 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1856

[startup+3.10278 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 22597
/proc/meminfo: memFree=1046000/2055920 swapFree=4192956/4192956
[pid=22596] ppid=22594 vsize=1856 CPUtime=3.09
/proc/22596/stat : 22596 (march_hi) R 22594 22596 21878 0 -1 4194304 313 0 0 0 309 0 0 0 25 0 1 0 42151802 1900544 296 1992294400 134512640 135197378 4294956240 18446744073709551615 134539266 0 0 4096 0 0 0 0 17 0 0 0
/proc/22596/statm: 464 296 91 167 0 295 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1856

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

[startup+3.50176 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 22597
/proc/meminfo: memFree=1046000/2055920 swapFree=4192956/4192956
[pid=22596] ppid=22594 vsize=1856 CPUtime=3.49
/proc/22596/stat : 22596 (march_hi) R 22594 22596 21878 0 -1 4194304 321 0 0 0 349 0 0 0 25 0 1 0 42151802 1900544 304 1992294400 134512640 135197378 4294956240 18446744073709551615 134539222 0 0 4096 0 0 0 0 17 0 0 0
/proc/22596/statm: 464 304 91 167 0 295 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 1856

Child status: 10
Real time (s): 3.5834
CPU time (s): 3.58145
CPU user time (s): 3.57946
CPU system time (s): 0.001999
CPU usage (%): 99.9457
Max. virtual memory (cumulated for all children) (KiB): 1856

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.57945
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= 334
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= 39

runsolver used 0.000999 second user time and 0.016997 second system time

The end

Launcher Data 

Begin job on node75 at 2009-04-19 13:40:29
IDJOB=1628217
IDBENCH=70673
IDSOLVER=583
FILE ID=node75/1628217-1240141229
PBS_JOBID= 9157868
Free space on /tmp= 66336 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/420/unif-k3-r4.25-v420-c1785-S1778559297-006.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1628217-1240141229/watcher-1628217-1240141229 -o /tmp/evaluation-result-1628217-1240141229/solver-1628217-1240141229 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1628217-1240141229.cnf

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

MD5SUM BENCH= a5462f4ed0be2c72f8dfc94f9311f583
RANDOM SEED=2125666392

node75.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		: 3000.213
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		: 3000.213
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1047448 kB
Buffers:         64376 kB
Cached:         850088 kB
SwapCached:          0 kB
Active:         244468 kB
Inactive:       683952 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1047448 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:             792 kB
Writeback:           0 kB
Mapped:          23708 kB
Slab:            66012 kB
Committed_AS:   151408 kB
PageTables:       1416 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= 66336 MiB
End job on node75 at 2009-04-19 13:40:33