Trace number 1628232

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 9.76551 9.76923

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/400/
unif-k3-r4.25-v400-c1700-S2032726331-082.cnf
MD5SUM978a693c176682b07f74cd4acf1b2ac2
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.016996
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) 2001-2009 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 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, 32 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 395 free variables and 1668 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.468
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 176 duplicate clauses
0.00/0.01	c resolvent_look() :: found 92 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 400 variables and 1760 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 1760 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1760 / 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 number of free variables = 395
0.00/0.01	c dynamic_preselect_setsize :: off
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| ( 0/13) NodeCount: 133
0.01/0.07	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| ( 1/13) NodeCount: 3806
1.69/1.73	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 |***************************************************************
c |****************************************************************| ( 2/13) NodeCount: 16211
7.39/7.47	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |*********
c |**********
c |************
c |*************
c |**************
c |***************
c |****************
c |*****************
c |******************
c |********************
c |*********************
c |**********************
c |***********************
c |************************
c |*************************
c |**************************
c |***************************
c |****************************
c |*****************************
9.69/9.76	c |1000100010000.0000101000000000000000000$$$$$$$$$$$$$$$$$$$$$$$$$|
9.69/9.76	
c |*****************************
9.69/9.76	c
9.69/9.76	c main():: nodeCount: 21116
9.69/9.76	c main():: dead ends in main: 455
9.69/9.76	c main():: lookAheadCount: 1345158
9.69/9.76	c main():: unitResolveCount: 225168
9.69/9.76	c main():: time=9.760000
9.69/9.76	c main():: necessary_assignments: 4767
9.69/9.76	c main():: bin_sat: 0, bin_unsat 0
9.69/9.76	c main():: doublelook: #: 81040, succes #: 57970
9.69/9.76	c main():: doublelook: overall 6.244 of all possible doublelooks executed
9.69/9.76	c main():: doublelook: succesrate: 71.533, average DL_trigger: 46.102
9.69/9.76	c main():: SOLUTION VERIFIED :-)
9.69/9.76	s SATISFIABLE
9.69/9.76	v 1 -2 -3 4 5 6 -7 -8 9 -10 -12 -13 -14 15 -16 17 18 -19 20 -21 -22 -23 -24 -25 -26 27 -28 29 30 -31 -32 -33 34 36 -37 -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 66 67 -68 -69 70 71 72 -73 -74 75 76 77 -78 79 -81 -82 83 84 -85 86 -87 88 89 -90 -92 -93 94 -95 96 -97 98 -99 100 -101 -102 -103 -104 105 -106 107 -108 -109 -110 111 112 -113 -114 115 -116 118 -119 -120 -121 122 123 124 -125 -126 -127 128 -129 -130 131 -132 134 -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 -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 -311 -313 314 315 316 317 -318 -319 -320 321 -323 -325 -326 327 -328 -329 330 331 332 -333 -334 -335 336 -337 -338 339 340 342 343 -344 345 -347 348 349 -350 351 352 -353 -354 -355 357 358 -359 360 361 362 -363 364 365 -367 368 369 -370 371 372 -374 375 -376 377 -378 379 381 -382 383 384 385 386 388 389 390 -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-1628232-1240141667/watcher-1628232-1240141667 -o /tmp/evaluation-result-1628232-1240141667/solver-1628232-1240141667 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1628232-1240141667.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: 0.95 0.97 0.99 3/64 26359
/proc/meminfo: memFree=1416264/2055920 swapFree=4192956/4192956
[pid=26359] ppid=26357 vsize=976 CPUtime=0
/proc/26359/stat : 26359 (march_hi) R 26357 26359 25255 0 -1 4194304 136 0 0 0 0 0 0 0 18 0 1 0 42193979 999424 119 1992294400 134512640 135197378 4294956240 18446744073709551615 134687881 0 0 4096 0 0 0 0 17 1 0 0
/proc/26359/statm: 244 119 65 167 0 75 0

[startup+0.0196559 s]
/proc/loadavg: 0.95 0.97 0.99 3/64 26359
/proc/meminfo: memFree=1416264/2055920 swapFree=4192956/4192956
[pid=26359] ppid=26357 vsize=1556 CPUtime=0.01
/proc/26359/stat : 26359 (march_hi) R 26357 26359 25255 0 -1 4194304 215 0 0 0 1 0 0 0 18 0 1 0 42193979 1593344 198 1992294400 134512640 135197378 4294956240 18446744073709551615 134552368 0 0 4096 0 0 0 0 17 1 0 0
/proc/26359/statm: 389 198 88 167 0 220 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1556

[startup+0.101668 s]
/proc/loadavg: 0.95 0.97 0.99 3/64 26359
/proc/meminfo: memFree=1416264/2055920 swapFree=4192956/4192956
[pid=26359] ppid=26357 vsize=1556 CPUtime=0.09
/proc/26359/stat : 26359 (march_hi) R 26357 26359 25255 0 -1 4194304 257 0 0 0 9 0 0 0 18 0 1 0 42193979 1593344 240 1992294400 134512640 135197378 4294956240 18446744073709551615 134525346 0 0 4096 0 0 0 0 17 1 0 0
/proc/26359/statm: 389 240 91 167 0 220 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1556

[startup+0.301701 s]
/proc/loadavg: 0.95 0.97 0.99 3/64 26359
/proc/meminfo: memFree=1416264/2055920 swapFree=4192956/4192956
[pid=26359] ppid=26357 vsize=1688 CPUtime=0.29
/proc/26359/stat : 26359 (march_hi) R 26357 26359 25255 0 -1 4194304 268 0 0 0 29 0 0 0 19 0 1 0 42193979 1728512 251 1992294400 134512640 135197378 4294956240 18446744073709551615 134539243 0 0 4096 0 0 0 0 17 1 0 0
/proc/26359/statm: 422 251 91 167 0 253 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1688

[startup+0.701769 s]
/proc/loadavg: 0.95 0.97 0.99 3/64 26359
/proc/meminfo: memFree=1416264/2055920 swapFree=4192956/4192956
[pid=26359] ppid=26357 vsize=1688 CPUtime=0.69
/proc/26359/stat : 26359 (march_hi) R 26357 26359 25255 0 -1 4194304 280 0 0 0 69 0 0 0 23 0 1 0 42193979 1728512 263 1992294400 134512640 135197378 4294956240 18446744073709551615 134552753 0 0 4096 0 0 0 0 17 1 0 0
/proc/26359/statm: 422 263 91 167 0 253 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1688

[startup+1.5019 s]
/proc/loadavg: 0.95 0.97 0.99 2/65 26360
/proc/meminfo: memFree=1415552/2055920 swapFree=4192956/4192956
[pid=26359] ppid=26357 vsize=1688 CPUtime=1.49
/proc/26359/stat : 26359 (march_hi) R 26357 26359 25255 0 -1 4194304 284 0 0 0 149 0 0 0 25 0 1 0 42193979 1728512 267 1992294400 134512640 135197378 4294956240 18446744073709551615 134552435 0 0 4096 0 0 0 0 17 1 0 0
/proc/26359/statm: 422 267 91 167 0 253 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1688

[startup+3.10117 s]
/proc/loadavg: 0.95 0.97 0.99 2/65 26360
/proc/meminfo: memFree=1415360/2055920 swapFree=4192956/4192956
[pid=26359] ppid=26357 vsize=1688 CPUtime=3.09
/proc/26359/stat : 26359 (march_hi) R 26357 26359 25255 0 -1 4194304 293 0 0 0 309 0 0 0 25 0 1 0 42193979 1728512 276 1992294400 134512640 135197378 4294956240 18446744073709551615 134713217 0 0 4096 0 0 0 0 17 1 0 0
/proc/26359/statm: 422 276 91 167 0 253 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1688

[startup+6.30271 s]
/proc/loadavg: 0.96 0.97 0.99 2/65 26360
/proc/meminfo: memFree=1415360/2055920 swapFree=4192956/4192956
[pid=26359] ppid=26357 vsize=1820 CPUtime=6.29
/proc/26359/stat : 26359 (march_hi) R 26357 26359 25255 0 -1 4194304 300 0 0 0 629 0 0 0 25 0 1 0 42193979 1863680 283 1992294400 134512640 135197378 4294956240 18446744073709551615 134525420 0 0 4096 0 0 0 0 17 1 0 0
/proc/26359/statm: 455 283 91 167 0 286 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1820

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

[startup+7.90198 s]
/proc/loadavg: 0.96 0.97 0.99 2/65 26360
/proc/meminfo: memFree=1415296/2055920 swapFree=4192956/4192956
[pid=26359] ppid=26357 vsize=1820 CPUtime=7.89
/proc/26359/stat : 26359 (march_hi) R 26357 26359 25255 0 -1 4194304 305 0 0 0 789 0 0 0 25 0 1 0 42193979 1863680 288 1992294400 134512640 135197378 4294956240 18446744073709551615 134542058 0 0 4096 0 0 0 0 17 1 0 0
/proc/26359/statm: 455 288 91 167 0 286 0
Current children cumulated CPU time (s) 7.89
Current children cumulated vsize (KiB) 1820

[startup+8.70111 s]
/proc/loadavg: 0.96 0.97 0.99 2/65 26360
/proc/meminfo: memFree=1415296/2055920 swapFree=4192956/4192956
[pid=26359] ppid=26357 vsize=1820 CPUtime=8.7
/proc/26359/stat : 26359 (march_hi) R 26357 26359 25255 0 -1 4194304 306 0 0 0 870 0 0 0 25 0 1 0 42193979 1863680 289 1992294400 134512640 135197378 4294956240 18446744073709551615 134539243 0 0 4096 0 0 0 0 17 1 0 0
/proc/26359/statm: 455 289 91 167 0 286 0
Current children cumulated CPU time (s) 8.7
Current children cumulated vsize (KiB) 1820

[startup+9.50124 s]
/proc/loadavg: 0.96 0.97 0.99 2/65 26360
/proc/meminfo: memFree=1415296/2055920 swapFree=4192956/4192956
[pid=26359] ppid=26357 vsize=1820 CPUtime=9.49
/proc/26359/stat : 26359 (march_hi) R 26357 26359 25255 0 -1 4194304 306 0 0 0 949 0 0 0 25 0 1 0 42193979 1863680 289 1992294400 134512640 135197378 4294956240 18446744073709551615 134552716 0 0 4096 0 0 0 0 17 1 0 0
/proc/26359/statm: 455 289 91 167 0 286 0
Current children cumulated CPU time (s) 9.49
Current children cumulated vsize (KiB) 1820

[startup+9.70128 s]
/proc/loadavg: 0.96 0.97 0.99 2/65 26360
/proc/meminfo: memFree=1415296/2055920 swapFree=4192956/4192956
[pid=26359] ppid=26357 vsize=1820 CPUtime=9.69
/proc/26359/stat : 26359 (march_hi) R 26357 26359 25255 0 -1 4194304 312 0 0 0 969 0 0 0 25 0 1 0 42193979 1863680 295 1992294400 134512640 135197378 4294956240 18446744073709551615 134525420 0 0 4096 0 0 0 0 17 1 0 0
/proc/26359/statm: 455 295 91 167 0 286 0
Current children cumulated CPU time (s) 9.69
Current children cumulated vsize (KiB) 1820

Child status: 10
Real time (s): 9.76923
CPU time (s): 9.76551
CPU user time (s): 9.76451
CPU system time (s): 0.000999
CPU usage (%): 99.9619
Max. virtual memory (cumulated for all children) (KiB): 1820

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 9.76451
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= 319
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= 27

runsolver used 0.014997 second user time and 0.023996 second system time

The end

Launcher Data 

Begin job on node57 at 2009-04-19 13:47:47
IDJOB=1628232
IDBENCH=70688
IDSOLVER=583
FILE ID=node57/1628232-1240141667
PBS_JOBID= 9157899
Free space on /tmp= 66440 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/400/unif-k3-r4.25-v400-c1700-S2032726331-082.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1628232-1240141667/watcher-1628232-1240141667 -o /tmp/evaluation-result-1628232-1240141667/solver-1628232-1240141667 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1628232-1240141667.cnf

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

MD5SUM BENCH= 978a693c176682b07f74cd4acf1b2ac2
RANDOM SEED=1293862620

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:       1416680 kB
Buffers:         83784 kB
Cached:         478508 kB
SwapCached:          0 kB
Active:         340756 kB
Inactive:       235380 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1416680 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            1112 kB
Writeback:           0 kB
Mapped:          23616 kB
Slab:            49144 kB
Committed_AS:   177904 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= 66440 MiB
End job on node57 at 2009-04-19 13:47:57