Trace number 1628208

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 1.21381 1.21443

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/420/
unif-k3-r4.25-v420-c1785-S1460100153-095.cnf
MD5SUM147f9c942ba89935aaa4b8c99ea683ac
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.009997
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 0.421
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 161 duplicate clauses
0.01/0.01	c resolvent_look() :: found 88 resolvents
0.01/0.01	c lessRedundantTransformation():: nothing to be done.
0.01/0.01	c transformTo3SAT():: you gave me 420 variables and 1873 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 1873 clauses.
0.01/0.01	c main():: clause / variable ratio: ( 1873 / 420 ) = 4.46
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 |****************************************************************| ( 0/17) NodeCount: 126
0.01/0.06	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
1.19/1.21	c |00000000000100000.10000110010000000000000000000$$$$$$$$$$$$$$$$$|
1.19/1.21	
c |***************************************************************
1.19/1.21	c
1.19/1.21	c main():: nodeCount: 2673
1.19/1.21	c main():: dead ends in main: 79
1.19/1.21	c main():: lookAheadCount: 174412
1.19/1.21	c main():: unitResolveCount: 33006
1.19/1.21	c main():: time=1.210000
1.19/1.21	c main():: necessary_assignments: 739
1.19/1.21	c main():: bin_sat: 0, bin_unsat 0
1.19/1.21	c main():: doublelook: #: 9775, succes #: 6874
1.19/1.21	c main():: doublelook: overall 5.802 of all possible doublelooks executed
1.19/1.21	c main():: doublelook: succesrate: 70.322, average DL_trigger: 43.993
1.19/1.21	c main():: SOLUTION VERIFIED :-)
1.19/1.21	s SATISFIABLE
1.19/1.21	v -1 -2 3 -4 5 6 -7 8 -10 11 -12 -13 14 -15 16 17 -18 -19 -20 -23 24 25 -26 27 28 -29 -30 31 33 -34 35 36 37 -38 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 79 80 81 82 -83 84 -85 86 87 88 -89 -90 -91 -92 -94 -95 96 -97 98 -99 -100 101 -102 -103 -104 -105 -106 -107 108 -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 -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 -211 212 213 214 216 -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 -243 -244 -245 246 247 248 -249 250 -251 252 253 254 -255 256 257 -258 -259 260 -261 262 263 -264 265 -266 268 269 271 272 -273 -274 -275 -276 277 -278 -279 281 -282 -283 284 -285 -287 289 290 -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 -348 349 351 -352 -353 -354 -355 356 357 358 359 -360 -361 362 -363 364 -365 366 367 368 -371 -372 373 -374 375 376 377 378 379 -380 -381 382 -383 384 -385 386 387 -390 -391 -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-1628208-1240141149/watcher-1628208-1240141149 -o /tmp/evaluation-result-1628208-1240141149/solver-1628208-1240141149 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1628208-1240141149.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: 1.16 1.03 1.00 3/65 26579
/proc/meminfo: memFree=1199856/2055920 swapFree=4192956/4192956
[pid=26579] ppid=26577 vsize=984 CPUtime=0
/proc/26579/stat : 26579 (march_hi) R 26577 26579 25638 0 -1 4194304 140 0 0 0 0 0 0 0 20 0 1 0 42144319 1007616 123 1992294400 134512640 135197378 4294956240 18446744073709551615 134535888 0 0 4096 0 0 0 0 17 1 0 0
/proc/26579/statm: 246 123 66 167 0 77 0

[startup+0.013377 s]
/proc/loadavg: 1.16 1.03 1.00 3/65 26579
/proc/meminfo: memFree=1199856/2055920 swapFree=4192956/4192956
[pid=26579] ppid=26577 vsize=984 CPUtime=0.01
/proc/26579/stat : 26579 (march_hi) R 26577 26579 25638 0 -1 4194304 165 0 0 0 1 0 0 0 20 0 1 0 42144319 1007616 148 1992294400 134512640 135197378 4294956240 18446744073709551615 134564947 0 0 4096 0 0 0 0 17 1 0 0
/proc/26579/statm: 246 148 81 167 0 77 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 984

[startup+0.102388 s]
/proc/loadavg: 1.16 1.03 1.00 3/65 26579
/proc/meminfo: memFree=1199856/2055920 swapFree=4192956/4192956
[pid=26579] ppid=26577 vsize=1580 CPUtime=0.09
/proc/26579/stat : 26579 (march_hi) R 26577 26579 25638 0 -1 4194304 263 0 0 0 9 0 0 0 21 0 1 0 42144319 1617920 246 1992294400 134512640 135197378 4294956240 18446744073709551615 134618359 0 0 4096 0 0 0 0 17 1 0 0
/proc/26579/statm: 395 246 91 167 0 226 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1580

[startup+0.302413 s]
/proc/loadavg: 1.16 1.03 1.00 3/65 26579
/proc/meminfo: memFree=1199856/2055920 swapFree=4192956/4192956
[pid=26579] ppid=26577 vsize=1712 CPUtime=0.29
/proc/26579/stat : 26579 (march_hi) R 26577 26579 25638 0 -1 4194304 280 0 0 0 29 0 0 0 22 0 1 0 42144319 1753088 263 1992294400 134512640 135197378 4294956240 18446744073709551615 134525324 0 0 4096 0 0 0 0 17 1 0 0
/proc/26579/statm: 428 263 91 167 0 259 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1712

[startup+0.702463 s]
/proc/loadavg: 1.16 1.03 1.00 3/65 26579
/proc/meminfo: memFree=1199856/2055920 swapFree=4192956/4192956
[pid=26579] ppid=26577 vsize=1712 CPUtime=0.69
/proc/26579/stat : 26579 (march_hi) R 26577 26579 25638 0 -1 4194304 291 0 0 0 69 0 0 0 25 0 1 0 42144319 1753088 274 1992294400 134512640 135197378 4294956240 18446744073709551615 134525351 0 0 4096 0 0 0 0 17 1 0 0
/proc/26579/statm: 428 274 91 167 0 259 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1712

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

[startup+1.10552 s]
/proc/loadavg: 1.15 1.03 1.00 2/66 26580
/proc/meminfo: memFree=1199080/2055920 swapFree=4192956/4192956
[pid=26579] ppid=26577 vsize=1844 CPUtime=1.1
/proc/26579/stat : 26579 (march_hi) R 26577 26579 25638 0 -1 4194304 302 0 0 0 110 0 0 0 25 0 1 0 42144319 1888256 285 1992294400 134512640 135197378 4294956240 18446744073709551615 134572685 0 0 4096 0 0 0 0 17 1 0 0
/proc/26579/statm: 461 285 91 167 0 292 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 1844

[startup+1.20153 s]
/proc/loadavg: 1.15 1.03 1.00 2/66 26580
/proc/meminfo: memFree=1199080/2055920 swapFree=4192956/4192956
[pid=26579] ppid=26577 vsize=1844 CPUtime=1.19
/proc/26579/stat : 26579 (march_hi) R 26577 26579 25638 0 -1 4194304 302 0 0 0 119 0 0 0 25 0 1 0 42144319 1888256 285 1992294400 134512640 135197378 4294956240 18446744073709551615 134525315 0 0 4096 0 0 0 0 17 1 0 0
/proc/26579/statm: 461 285 91 167 0 292 0
Current children cumulated CPU time (s) 1.19
Current children cumulated vsize (KiB) 1844

Child status: 10
Real time (s): 1.21443
CPU time (s): 1.21381
CPU user time (s): 1.20982
CPU system time (s): 0.003999
CPU usage (%): 99.949
Max. virtual memory (cumulated for all children) (KiB): 1844

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.20982
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 314
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= 3
involuntary context switches= 2

runsolver used 0.004999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node92 at 2009-04-19 13:39:09
IDJOB=1628208
IDBENCH=70664
IDSOLVER=583
FILE ID=node92/1628208-1240141149
PBS_JOBID= 9157891
Free space on /tmp= 66484 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/420/unif-k3-r4.25-v420-c1785-S1460100153-095.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1628208-1240141149/watcher-1628208-1240141149 -o /tmp/evaluation-result-1628208-1240141149/solver-1628208-1240141149 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1628208-1240141149.cnf

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

MD5SUM BENCH= 147f9c942ba89935aaa4b8c99ea683ac
RANDOM SEED=118862841

node92.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		: 3000.245
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		: 3000.245
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:       1200272 kB
Buffers:         75380 kB
Cached:         710156 kB
SwapCached:          0 kB
Active:         593252 kB
Inactive:       206076 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1200272 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            1184 kB
Writeback:           0 kB
Mapped:          23516 kB
Slab:            42152 kB
Committed_AS:   165720 kB
PageTables:       1460 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= 66484 MiB
End job on node92 at 2009-04-19 13:39:11