Trace number 1518553

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 3.72343 3.72523

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/400/
unif-k3-r4.25-v400-c1700-S1767425240-073.cnf
MD5SUMa3570ddee79c19b1c54131a205337743
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, 11 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 399 free variables and 1689 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.570
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 150 duplicate clauses
0.00/0.01	c resolvent_look() :: found 78 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 400 variables and 1767 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 1767 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1767 / 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 number of free variables = 399
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 |****************************************************************| ( 0/18) NodeCount: 213
0.03/0.10	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: 1817
0.70/0.77	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 |***************************************************************
3.69/3.72	c |000000000000100010.1000000000000000000000000000$$$$$$$$$$$$$$$$$|
3.69/3.72	
c |***************************************************************
3.69/3.72	c
3.69/3.72	c main():: nodeCount: 8933
3.69/3.72	c main():: dead ends in main: 294
3.69/3.72	c main():: lookAheadCount: 578834
3.69/3.72	c main():: unitResolveCount: 109835
3.69/3.72	c main():: time=3.720000
3.69/3.72	c main():: necessary_assignments: 2464
3.69/3.72	c main():: bin_sat: 0, bin_unsat 0
3.69/3.72	c main():: doublelook: #: 31204, succes #: 21317
3.69/3.72	c main():: doublelook: overall 5.580 of all possible doublelooks executed
3.69/3.72	c main():: doublelook: succesrate: 68.315, average DL_trigger: 43.904
3.69/3.72	c main():: SOLUTION VERIFIED :-)
3.69/3.72	s SATISFIABLE
3.69/3.72	v 1 -2 -3 -4 5 -6 7 -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 35 -36 37 -38 39 40 41 -42 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 -74 -76 77 -78 -80 -81 82 83 -84 -85 86 -88 89 -90 -91 92 -93 94 95 96 -97 -98 -99 -100 -101 -102 -103 104 -105 -106 -107 -108 109 110 113 -114 116 117 -118 119 -120 -121 -123 -124 -125 -127 -128 129 -131 -132 133 134 135 136 137 -138 -139 -140 -141 142 -143 -144 -145 146 148 -149 150 -151 -152 -154 155 156 -157 -158 159 160 -161 -162 -163 -164 165 166 167 -168 -169 -170 -171 173 -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 -202 203 204 205 206 208 209 210 211 -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 -256 -257 259 -260 261 -262 263 264 265 -266 -267 -268 269 -270 271 -272 -273 274 276 -277 278 279 -280 281 -282 284 285 286 287 288 -289 290 291 292 -293 -294 -295 297 -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 -324 325 326 327 328 329 331 332 -333 334 -336 -337 338 -340 341 342 343 345 346 347 348 349 -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:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1518553-1238301254/watcher-1518553-1238301254 -o /tmp/evaluation-result-1518553-1238301254/solver-1518553-1238301254 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1518553-1238301254.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 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: 1.01 1.02 1.00 3/73 12048
/proc/meminfo: memFree=1079968/2055920 swapFree=4173988/4192956
[pid=12048] ppid=12046 vsize=976 CPUtime=0
/proc/12048/stat : 12048 (march_hi) R 12046 12048 11838 0 -1 4194304 138 0 0 0 0 0 0 0 20 0 1 0 1102790368 999424 121 1992294400 134512640 135197378 4294956240 18446744073709551615 134528032 0 0 4096 0 0 0 0 17 1 0 0
/proc/12048/statm: 244 121 67 167 0 75 0

[startup+0.038503 s]
/proc/loadavg: 1.01 1.02 1.00 3/73 12048
/proc/meminfo: memFree=1079968/2055920 swapFree=4173988/4192956
[pid=12048] ppid=12046 vsize=1556 CPUtime=0.03
/proc/12048/stat : 12048 (march_hi) R 12046 12048 11838 0 -1 4194304 250 0 0 0 3 0 0 0 20 0 1 0 1102790368 1593344 233 1992294400 134512640 135197378 4294956240 18446744073709551615 134572986 0 0 4096 0 0 0 0 17 1 0 0
/proc/12048/statm: 389 233 91 167 0 220 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1556

[startup+0.101513 s]
/proc/loadavg: 1.01 1.02 1.00 3/73 12048
/proc/meminfo: memFree=1079968/2055920 swapFree=4173988/4192956
[pid=12048] ppid=12046 vsize=1556 CPUtime=0.1
/proc/12048/stat : 12048 (march_hi) R 12046 12048 11838 0 -1 4194304 264 0 0 0 10 0 0 0 20 0 1 0 1102790368 1593344 247 1992294400 134512640 135197378 4294956240 18446744073709551615 134649523 0 0 4096 0 0 0 0 17 1 0 0
/proc/12048/statm: 389 247 91 167 0 220 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1556

[startup+0.301552 s]
/proc/loadavg: 1.01 1.02 1.00 3/73 12048
/proc/meminfo: memFree=1079968/2055920 swapFree=4173988/4192956
[pid=12048] ppid=12046 vsize=1688 CPUtime=0.3
/proc/12048/stat : 12048 (march_hi) R 12046 12048 11838 0 -1 4194304 276 0 0 0 30 0 0 0 22 0 1 0 1102790368 1728512 259 1992294400 134512640 135197378 4294956240 18446744073709551615 134593937 0 0 4096 0 0 0 0 17 1 0 0
/proc/12048/statm: 422 259 91 167 0 253 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1688

[startup+0.701628 s]
/proc/loadavg: 1.01 1.02 1.00 3/73 12048
/proc/meminfo: memFree=1079968/2055920 swapFree=4173988/4192956
[pid=12048] ppid=12046 vsize=1688 CPUtime=0.7
/proc/12048/stat : 12048 (march_hi) R 12046 12048 11838 0 -1 4194304 285 0 0 0 70 0 0 0 25 0 1 0 1102790368 1728512 268 1992294400 134512640 135197378 4294956240 18446744073709551615 134548465 0 0 4096 0 0 0 0 17 1 0 0
/proc/12048/statm: 422 268 91 167 0 253 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1688

[startup+1.50178 s]
/proc/loadavg: 1.01 1.02 1.00 2/74 12049
/proc/meminfo: memFree=1079192/2055920 swapFree=4173988/4192956
[pid=12048] ppid=12046 vsize=1688 CPUtime=1.5
/proc/12048/stat : 12048 (march_hi) R 12046 12048 11838 0 -1 4194304 293 0 0 0 150 0 0 0 25 0 1 0 1102790368 1728512 276 1992294400 134512640 135197378 4294956240 18446744073709551615 134542163 0 0 4096 0 0 0 0 17 1 0 0
/proc/12048/statm: 422 276 91 167 0 253 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 1688

[startup+3.10209 s]
/proc/loadavg: 1.00 1.02 1.00 2/74 12049
/proc/meminfo: memFree=1079000/2055920 swapFree=4173988/4192956
[pid=12048] ppid=12046 vsize=1828 CPUtime=3.1
/proc/12048/stat : 12048 (march_hi) R 12046 12048 11838 0 -1 4194304 304 0 0 0 310 0 0 0 25 0 1 0 1102790368 1871872 287 1992294400 134512640 135197378 4294956240 18446744073709551615 134526583 0 0 4096 0 0 0 0 17 1 0 0
/proc/12048/statm: 457 287 91 167 0 288 0
Current children cumulated CPU time (s) 3.1
Current children cumulated vsize (KiB) 1828

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

[startup+3.50116 s]
/proc/loadavg: 1.00 1.02 1.00 2/74 12049
/proc/meminfo: memFree=1078936/2055920 swapFree=4173988/4192956
[pid=12048] ppid=12046 vsize=1828 CPUtime=3.49
/proc/12048/stat : 12048 (march_hi) R 12046 12048 11838 0 -1 4194304 305 0 0 0 349 0 0 0 25 0 1 0 1102790368 1871872 288 1992294400 134512640 135197378 4294956240 18446744073709551615 134552532 0 0 4096 0 0 0 0 17 1 0 0
/proc/12048/statm: 457 288 91 167 0 288 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 1828

[startup+3.7012 s]
/proc/loadavg: 1.00 1.02 1.00 2/74 12049
/proc/meminfo: memFree=1078936/2055920 swapFree=4173988/4192956
[pid=12048] ppid=12046 vsize=1828 CPUtime=3.69
/proc/12048/stat : 12048 (march_hi) R 12046 12048 11838 0 -1 4194304 307 0 0 0 369 0 0 0 25 0 1 0 1102790368 1871872 290 1992294400 134512640 135197378 4294956240 18446744073709551615 134525296 0 0 4096 0 0 0 0 17 1 0 0
/proc/12048/statm: 457 290 91 167 0 288 0
Current children cumulated CPU time (s) 3.69
Current children cumulated vsize (KiB) 1828

Child status: 10
Real time (s): 3.72523
CPU time (s): 3.72343
CPU user time (s): 3.72243
CPU system time (s): 0.000999
CPU usage (%): 99.9517
Max. virtual memory (cumulated for all children) (KiB): 1828

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.72243
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= 320
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= 5

runsolver used 0.005999 second user time and 0.016997 second system time

The end

Launcher Data 

Begin job on node76 at 2009-03-29 06:34:14
IDJOB=1518553
IDBENCH=70689
IDSOLVER=521
FILE ID=node76/1518553-1238301254
PBS_JOBID= 9061026
Free space on /tmp= 65808 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/400/unif-k3-r4.25-v400-c1700-S1767425240-073.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1518553-1238301254/watcher-1518553-1238301254 -o /tmp/evaluation-result-1518553-1238301254/solver-1518553-1238301254 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1518553-1238301254.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= a3570ddee79c19b1c54131a205337743
RANDOM SEED=979828718

node76.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		: 3000.259
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		: 3000.259
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:       1080384 kB
Buffers:         69492 kB
Cached:         817764 kB
SwapCached:      10684 kB
Active:         157288 kB
Inactive:       748996 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1080384 kB
SwapTotal:     4192956 kB
SwapFree:      4173988 kB
Dirty:             788 kB
Writeback:           0 kB
Mapped:          18988 kB
Slab:            54276 kB
Committed_AS:  2842776 kB
PageTables:       2048 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= 65808 MiB
End job on node76 at 2009-03-29 06:34:17