Trace number 1628210

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 4.06438 4.06532

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/420/
unif-k3-r4.25-v420-c1785-S1940784272-089.cnf
MD5SUMbd1e8bac20c24526524d34ea2c494a05
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.014996
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 

0.00/0.01	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 420 variables and 1785 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, 7 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 419 free variables and 1778 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.527
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 217 duplicate clauses
0.00/0.02	c resolvent_look() :: found 104 resolvents
0.00/0.02	c lessRedundantTransformation():: nothing to be done.
0.00/0.02	c transformTo3SAT():: you gave me 420 variables and 1882 clauses.
0.00/0.02	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.00/0.02	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.00/0.02	c transformTo3SAT():: the transformation yielded 420 variabels and 1882 clauses.
0.00/0.02	c main():: clause / variable ratio: ( 1882 / 420 ) = 4.48
0.00/0.02	c longest clause has size 3
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.02	c number of free variables = 419
0.00/0.02	c dynamic_preselect_setsize :: off
0.00/0.02	c main():: all systems go!
0.00/0.02	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| ( 0/16) NodeCount: 151
0.05/0.08	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| ( 1/16) NodeCount: 3052
1.39/1.46	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |*****************
c |******************
c |********************
c |************************
c |*************************
c |**************************
c |****************************
c |*****************************
c |******************************
c |*******************************
3.99/4.06	c |1000000000000100.10000010000000000000000000$$$$$$$$$$$$$$$$$$$$$|
3.99/4.06	
c |*******************************
3.99/4.06	c
3.99/4.06	c main():: nodeCount: 8358
3.99/4.06	c main():: dead ends in main: 239
3.99/4.06	c main():: lookAheadCount: 531799
3.99/4.06	c main():: unitResolveCount: 103360
3.99/4.06	c main():: time=4.060000
3.99/4.06	c main():: necessary_assignments: 2309
3.99/4.06	c main():: bin_sat: 0, bin_unsat 0
3.99/4.06	c main():: doublelook: #: 31188, succes #: 21987
3.99/4.06	c main():: doublelook: overall 6.082 of all possible doublelooks executed
3.99/4.06	c main():: doublelook: succesrate: 70.498, average DL_trigger: 43.972
3.99/4.06	c main():: SOLUTION VERIFIED :-)
3.99/4.06	s SATISFIABLE
3.99/4.06	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 31 32 -33 34 -35 -36 37 -38 39 -40 -41 -42 43 -44 45 46 -47 49 -50 -51 -52 -53 54 -55 -56 -57 -58 59 -60 -61 62 63 -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 -130 131 132 134 -136 -137 139 140 141 142 143 144 -145 147 -148 149 -150 -151 152 153 -154 -155 156 -157 -158 -159 -160 -161 -162 163 165 -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 -194 195 196 -197 -198 199 200 201 202 -203 -204 205 207 208 -209 -210 -211 212 -213 -214 -215 216 -217 -218 219 -220 -221 222 -223 -224 225 -226 -227 228 229 -230 231 -232 233 235 236 237 -238 -239 -240 241 242 -243 244 245 246 -247 -248 -249 250 -251 252 -253 254 -255 -256 -257 -258 -259 -261 262 263 -264 265 -266 267 268 269 270 271 272 -274 -275 276 278 -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 -343 344 346 347 -348 350 -351 -352 -353 -354 -355 356 -357 -358 359 360 361 -362 -363 364 365 366 367 -369 370 371 -372 -373 374 -375 376 377 -378 -379 380 381 382 -383 384 385 386 387 388 -390 392 -393 394 -395 -396 -397 -398 -399 400 -401 402 -403 -404 -405 -406 -407 -408 409 410 411 -412 -413 -414 415 -416 -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-1628210-1240141167/watcher-1628210-1240141167 -o /tmp/evaluation-result-1628210-1240141167/solver-1628210-1240141167 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1628210-1240141167.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 0.99 0.98 3/64 25405
/proc/meminfo: memFree=965056/2055920 swapFree=4192956/4192956
[pid=25405] ppid=25403 vsize=984 CPUtime=0
/proc/25405/stat : 25405 (march_hi) R 25403 25405 24809 0 -1 4194304 139 0 0 0 0 0 0 0 18 0 1 0 42143093 1007616 122 1992294400 134512640 135197378 4294956240 18446744073709551615 134565239 0 0 4096 0 0 0 0 17 1 0 0
/proc/25405/statm: 246 122 65 167 0 77 0

[startup+0.0521499 s]
/proc/loadavg: 1.00 0.99 0.98 3/64 25405
/proc/meminfo: memFree=965056/2055920 swapFree=4192956/4192956
[pid=25405] ppid=25403 vsize=1580 CPUtime=0.05
/proc/25405/stat : 25405 (march_hi) R 25403 25405 24809 0 -1 4194304 260 0 0 0 5 0 0 0 18 0 1 0 42143093 1617920 243 1992294400 134512640 135197378 4294956240 18446744073709551615 134525351 0 0 4096 0 0 0 0 17 1 0 0
/proc/25405/statm: 395 243 91 167 0 226 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1580

[startup+0.10116 s]
/proc/loadavg: 1.00 0.99 0.98 3/64 25405
/proc/meminfo: memFree=965056/2055920 swapFree=4192956/4192956
[pid=25405] ppid=25403 vsize=1712 CPUtime=0.09
/proc/25405/stat : 25405 (march_hi) R 25403 25405 24809 0 -1 4194304 276 0 0 0 9 0 0 0 18 0 1 0 42143093 1753088 259 1992294400 134512640 135197378 4294956240 18446744073709551615 134539261 0 0 4096 0 0 0 0 17 1 0 0
/proc/25405/statm: 428 259 91 167 0 259 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1712

[startup+0.3012 s]
/proc/loadavg: 1.00 0.99 0.98 3/64 25405
/proc/meminfo: memFree=965056/2055920 swapFree=4192956/4192956
[pid=25405] ppid=25403 vsize=1712 CPUtime=0.29
/proc/25405/stat : 25405 (march_hi) R 25403 25405 24809 0 -1 4194304 286 0 0 0 29 0 0 0 19 0 1 0 42143093 1753088 269 1992294400 134512640 135197378 4294956240 18446744073709551615 134590676 0 0 4096 0 0 0 0 17 1 0 0
/proc/25405/statm: 428 269 91 167 0 259 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1712

[startup+0.701278 s]
/proc/loadavg: 1.00 0.99 0.98 3/64 25405
/proc/meminfo: memFree=965056/2055920 swapFree=4192956/4192956
[pid=25405] ppid=25403 vsize=1712 CPUtime=0.69
/proc/25405/stat : 25405 (march_hi) R 25403 25405 24809 0 -1 4194304 295 0 0 0 69 0 0 0 22 0 1 0 42143093 1753088 278 1992294400 134512640 135197378 4294956240 18446744073709551615 134539232 0 0 4096 0 0 0 0 17 1 0 0
/proc/25405/statm: 428 278 91 167 0 259 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1712

[startup+1.50144 s]
/proc/loadavg: 1.00 0.99 0.98 2/65 25406
/proc/meminfo: memFree=964280/2055920 swapFree=4192956/4192956
[pid=25405] ppid=25403 vsize=1712 CPUtime=1.49
/proc/25405/stat : 25405 (march_hi) R 25403 25405 24809 0 -1 4194304 300 0 0 0 149 0 0 0 25 0 1 0 42143093 1753088 283 1992294400 134512640 135197378 4294956240 18446744073709551615 134570751 0 0 4096 0 0 0 0 17 1 0 0
/proc/25405/statm: 428 283 91 167 0 259 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1712

[startup+3.10175 s]
/proc/loadavg: 1.00 0.99 0.98 2/65 25406
/proc/meminfo: memFree=964088/2055920 swapFree=4192956/4192956
[pid=25405] ppid=25403 vsize=1844 CPUtime=3.09
/proc/25405/stat : 25405 (march_hi) R 25403 25405 24809 0 -1 4194304 310 0 0 0 309 0 0 0 25 0 1 0 42143093 1888256 293 1992294400 134512640 135197378 4294956240 18446744073709551615 134542109 0 0 4096 0 0 0 0 17 1 0 0
/proc/25405/statm: 461 293 91 167 0 292 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1844

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

[startup+3.50183 s]
/proc/loadavg: 1.00 0.99 0.98 2/65 25406
/proc/meminfo: memFree=964088/2055920 swapFree=4192956/4192956
[pid=25405] ppid=25403 vsize=1844 CPUtime=3.49
/proc/25405/stat : 25405 (march_hi) R 25403 25405 24809 0 -1 4194304 311 0 0 0 349 0 0 0 25 0 1 0 42143093 1888256 294 1992294400 134512640 135197378 4294956240 18446744073709551615 134542104 0 0 4096 0 0 0 0 17 1 0 0
/proc/25405/statm: 461 294 91 167 0 292 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 1844

[startup+3.90191 s]
/proc/loadavg: 1.00 0.99 0.98 2/65 25406
/proc/meminfo: memFree=964088/2055920 swapFree=4192956/4192956
[pid=25405] ppid=25403 vsize=1844 CPUtime=3.89
/proc/25405/stat : 25405 (march_hi) R 25403 25405 24809 0 -1 4194304 312 0 0 0 389 0 0 0 25 0 1 0 42143093 1888256 295 1992294400 134512640 135197378 4294956240 18446744073709551615 134557272 0 0 4096 0 0 0 0 17 1 0 0
/proc/25405/statm: 461 295 91 167 0 292 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 1844

[startup+4.00293 s]
/proc/loadavg: 1.00 0.99 0.98 2/65 25406
/proc/meminfo: memFree=964088/2055920 swapFree=4192956/4192956
[pid=25405] ppid=25403 vsize=1844 CPUtime=3.99
/proc/25405/stat : 25405 (march_hi) R 25403 25405 24809 0 -1 4194304 313 0 0 0 399 0 0 0 25 0 1 0 42143093 1888256 296 1992294400 134512640 135197378 4294956240 18446744073709551615 134597818 0 0 4096 0 0 0 0 17 1 0 0
/proc/25405/statm: 461 296 91 167 0 292 0
Current children cumulated CPU time (s) 3.99
Current children cumulated vsize (KiB) 1844

Child status: 10
Real time (s): 4.06532
CPU time (s): 4.06438
CPU user time (s): 4.05938
CPU system time (s): 0.004999
CPU usage (%): 99.9769
Max. virtual memory (cumulated for all children) (KiB): 1844

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.05938
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 321
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= 9

runsolver used 0.008998 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node66 at 2009-04-19 13:39:27
IDJOB=1628210
IDBENCH=70666
IDSOLVER=583
FILE ID=node66/1628210-1240141167
PBS_JOBID= 9157869
Free space on /tmp= 66372 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/420/unif-k3-r4.25-v420-c1785-S1940784272-089.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1628210-1240141167/watcher-1628210-1240141167 -o /tmp/evaluation-result-1628210-1240141167/solver-1628210-1240141167 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1628210-1240141167.cnf

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

MD5SUM BENCH= bd1e8bac20c24526524d34ea2c494a05
RANDOM SEED=762090165

node66.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		: 3000.263
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	: 5931.00
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		: 3000.263
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:        965472 kB
Buffers:         83144 kB
Cached:         927472 kB
SwapCached:          0 kB
Active:         324124 kB
Inactive:       700396 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        965472 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            1012 kB
Writeback:           0 kB
Mapped:          23684 kB
Slab:            51964 kB
Committed_AS:   167520 kB
PageTables:       1360 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= 66372 MiB
End job on node66 at 2009-04-19 13:39:31