Trace number 1626913

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
SAT07 reference solver: March KS 2007-02-08SAT 5.2732 5.28625

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/400/
unif-k3-r4.25-v400-c1700-S172053238-003.cnf
MD5SUMd645722ef726f8347e5e1cd19bda8fdf
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.012997
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) 2001-2004 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 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, 20 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 397 free variables and 1680 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.430
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 139 duplicate clauses
0.00/0.01	c resolvent_look() :: found 86 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 400 variables and 1766 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 1766 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1766 / 400 ) = 4.42
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: 124 JD: 15
0.04/0.06	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: 2166 JD: 15
0.89/0.96	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 NC: 9952 JD: 15
4.39/4.46	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |*********
c |**********
c |************
c |*************
c |**************
c |***************
c |****************
c |*****************
c |******************
c |********************
c |*********************
c |**********************
c |***********************
c |************************
c |*************************
c |**************************
c |***************************
c |****************************
c |*****************************
5.18/5.28	c solution bin :: 100010010000000.00010000000000000
5.18/5.28	c direction branchin :: current_rights = 4
5.18/5.28	
c |*****************************
5.18/5.28	c
5.18/5.28	c main():: nodeCount: 11789
5.18/5.28	c main():: dead ends in main: 313
5.18/5.28	c main():: lookAheadCount: 840322
5.18/5.28	c main():: unitResolveCount: 139933
5.18/5.28	c main():: time=5.270000
5.18/5.28	c main():: necessary_assignments: 2729
5.18/5.28	c main():: bin_sat: 0, bin_unsat 0
5.18/5.28	c main():: doublelook: #: 48622, succes #: 35993
5.18/5.28	c main():: doublelook: overall 5.995 of all possible doublelooks executed
5.18/5.28	c main():: doublelook: succesrate: 74.026, average DL_trigger: 6088.889
5.18/5.28	c main():: SOLUTION VERIFIED :-)
5.18/5.28	s SATISFIABLE
5.18/5.28	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 

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-1626913-1240141691/watcher-1626913-1240141691 -o /tmp/evaluation-result-1626913-1240141691/solver-1626913-1240141691 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1626913-1240141691.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: 0.94 0.99 0.99 3/64 26068
/proc/meminfo: memFree=1049328/2055920 swapFree=4192956/4192956
[pid=26068] ppid=26066 vsize=796 CPUtime=0
/proc/26068/stat : 26068 (march_ks) R 26066 26068 25511 0 -1 4194304 124 0 0 0 0 0 0 0 18 0 1 0 42202561 815104 107 1992294400 134512640 135019032 4294956240 18446744073709551615 134662703 0 0 4096 0 0 0 0 17 0 0 0
/proc/26068/statm: 199 107 52 123 0 74 0

[startup+0.043597 s]
/proc/loadavg: 0.94 0.99 0.99 3/64 26068
/proc/meminfo: memFree=1049328/2055920 swapFree=4192956/4192956
[pid=26068] ppid=26066 vsize=1192 CPUtime=0.04
/proc/26068/stat : 26068 (march_ks) R 26066 26068 25511 0 -1 4194304 232 0 0 0 4 0 0 0 18 0 1 0 42202561 1220608 215 1992294400 134512640 135019032 4294956240 18446744073709551615 134538131 0 0 4096 0 0 0 0 17 0 0 0
/proc/26068/statm: 298 215 73 123 0 173 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1192

[startup+0.101602 s]
/proc/loadavg: 0.94 0.99 0.99 3/64 26068
/proc/meminfo: memFree=1049328/2055920 swapFree=4192956/4192956
[pid=26068] ppid=26066 vsize=1192 CPUtime=0.09
/proc/26068/stat : 26068 (march_ks) R 26066 26068 25511 0 -1 4194304 244 0 0 0 9 0 0 0 18 0 1 0 42202561 1220608 227 1992294400 134512640 135019032 4294956240 18446744073709551615 134542537 0 0 4096 0 0 0 0 17 0 0 0
/proc/26068/statm: 298 227 73 123 0 173 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1192

[startup+0.301619 s]
/proc/loadavg: 0.94 0.99 0.99 3/64 26068
/proc/meminfo: memFree=1049328/2055920 swapFree=4192956/4192956
[pid=26068] ppid=26066 vsize=1348 CPUtime=0.29
/proc/26068/stat : 26068 (march_ks) R 26066 26068 25511 0 -1 4194304 259 0 0 0 29 0 0 0 19 0 1 0 42202561 1380352 242 1992294400 134512640 135019032 4294956240 18446744073709551615 134538215 0 0 4096 0 0 0 0 17 0 0 0
/proc/26068/statm: 337 242 73 123 0 212 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1348

[startup+0.701654 s]
/proc/loadavg: 0.94 0.99 0.99 3/64 26068
/proc/meminfo: memFree=1049328/2055920 swapFree=4192956/4192956
[pid=26068] ppid=26066 vsize=1348 CPUtime=0.69
/proc/26068/stat : 26068 (march_ks) R 26066 26068 25511 0 -1 4194304 262 0 0 0 69 0 0 0 24 0 1 0 42202561 1380352 245 1992294400 134512640 135019032 4294956240 18446744073709551615 134597179 0 0 4096 0 0 0 0 17 0 0 0
/proc/26068/statm: 337 245 73 123 0 212 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1348

[startup+1.50172 s]
/proc/loadavg: 0.94 0.99 0.99 2/65 26069
/proc/meminfo: memFree=1048552/2055920 swapFree=4192956/4192956
[pid=26068] ppid=26066 vsize=1348 CPUtime=1.49
/proc/26068/stat : 26068 (march_ks) R 26066 26068 25511 0 -1 4194304 270 0 0 0 149 0 0 0 25 0 1 0 42202561 1380352 253 1992294400 134512640 135019032 4294956240 18446744073709551615 134542659 0 0 4096 0 0 0 0 17 0 0 0
/proc/26068/statm: 337 253 73 123 0 212 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1348

[startup+3.10186 s]
/proc/loadavg: 0.94 0.99 0.99 2/65 26069
/proc/meminfo: memFree=1048424/2055920 swapFree=4192956/4192956
[pid=26068] ppid=26066 vsize=1348 CPUtime=3.09
/proc/26068/stat : 26068 (march_ks) R 26066 26068 25511 0 -1 4194304 279 0 0 0 309 0 0 0 25 0 1 0 42202561 1380352 262 1992294400 134512640 135019032 4294956240 18446744073709551615 134526505 0 0 4096 0 0 0 0 17 0 0 0
/proc/26068/statm: 337 262 73 123 0 212 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1348

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

[startup+3.90193 s]
/proc/loadavg: 0.95 0.99 0.99 2/65 26069
/proc/meminfo: memFree=1048432/2055920 swapFree=4192956/4192956
[pid=26068] ppid=26066 vsize=1348 CPUtime=3.89
/proc/26068/stat : 26068 (march_ks) R 26066 26068 25511 0 -1 4194304 279 0 0 0 389 0 0 0 25 0 1 0 42202561 1380352 262 1992294400 134512640 135019032 4294956240 18446744073709551615 134577639 0 0 4096 0 0 0 0 17 1 0 0
/proc/26068/statm: 337 262 73 123 0 212 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 1348

[startup+4.702 s]
/proc/loadavg: 0.95 0.99 0.99 2/65 26069
/proc/meminfo: memFree=1048368/2055920 swapFree=4192956/4192956
[pid=26068] ppid=26066 vsize=1348 CPUtime=4.68
/proc/26068/stat : 26068 (march_ks) R 26066 26068 25511 0 -1 4194304 287 0 0 0 468 0 0 0 25 0 1 0 42202561 1380352 270 1992294400 134512640 135019032 4294956240 18446744073709551615 134526432 0 0 4096 0 0 0 0 17 1 0 0
/proc/26068/statm: 337 270 73 123 0 212 0
Current children cumulated CPU time (s) 4.68
Current children cumulated vsize (KiB) 1348

[startup+5.10204 s]
/proc/loadavg: 0.95 0.99 0.99 2/65 26069
/proc/meminfo: memFree=1048368/2055920 swapFree=4192956/4192956
[pid=26068] ppid=26066 vsize=1348 CPUtime=5.08
/proc/26068/stat : 26068 (march_ks) R 26066 26068 25511 0 -1 4194304 287 0 0 0 508 0 0 0 25 0 1 0 42202561 1380352 270 1992294400 134512640 135019032 4294956240 18446744073709551615 134538197 0 0 4096 0 0 0 0 17 1 0 0
/proc/26068/statm: 337 270 73 123 0 212 0
Current children cumulated CPU time (s) 5.08
Current children cumulated vsize (KiB) 1348

[startup+5.20204 s]
/proc/loadavg: 0.95 0.99 0.99 2/65 26069
/proc/meminfo: memFree=1048368/2055920 swapFree=4192956/4192956
[pid=26068] ppid=26066 vsize=1348 CPUtime=5.18
/proc/26068/stat : 26068 (march_ks) R 26066 26068 25511 0 -1 4194304 287 0 0 0 518 0 0 0 25 0 1 0 42202561 1380352 270 1992294400 134512640 135019032 4294956240 18446744073709551615 134564205 0 0 4096 0 0 0 0 17 1 0 0
/proc/26068/statm: 337 270 73 123 0 212 0
Current children cumulated CPU time (s) 5.18
Current children cumulated vsize (KiB) 1348

Child status: 10
Real time (s): 5.28625
CPU time (s): 5.2732
CPU user time (s): 5.2702
CPU system time (s): 0.002999
CPU usage (%): 99.753
Max. virtual memory (cumulated for all children) (KiB): 1348

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.2702
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 288
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= 48

runsolver used 0.005999 second user time and 0.020996 second system time

The end

Launcher Data 

Begin job on node15 at 2009-04-19 13:48:12
IDJOB=1626913
IDBENCH=70691
IDSOLVER=582
FILE ID=node15/1626913-1240141691
PBS_JOBID= 9159268
Free space on /tmp= 66356 MiB

SOLVER NAME= SAT07 reference solver: March KS 2007-02-08
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/400/unif-k3-r4.25-v400-c1700-S172053238-003.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1626913-1240141691/watcher-1626913-1240141691 -o /tmp/evaluation-result-1626913-1240141691/solver-1626913-1240141691 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1626913-1240141691.cnf            

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

MD5SUM BENCH= d645722ef726f8347e5e1cd19bda8fdf
RANDOM SEED=2132804316

node15.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		: 3000.220
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		: 3000.220
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:       1049808 kB
Buffers:         90048 kB
Cached:         834752 kB
SwapCached:          0 kB
Active:         311356 kB
Inactive:       627296 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1049808 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            3372 kB
Writeback:           0 kB
Mapped:          23612 kB
Slab:            53460 kB
Committed_AS:   172068 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= 66352 MiB
End job on node15 at 2009-04-19 13:48:17