Trace number 1628212

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 6.92894 6.93376

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/420/
unif-k3-r4.25-v420-c1785-S311671104-045.cnf
MD5SUMb892d03833c64865c28a6c109f19fcb2
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 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, 6 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 419 free variables and 1779 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.545
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 182 duplicate clauses
0.00/0.01	c resolvent_look() :: found 89 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 420 variables and 1868 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 420 variabels and 1868 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1868 / 420 ) = 4.45
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 = 419
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 |****************************************************************| ( 0/999) NodeCount: 149
0.06/0.07	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| ( 1/999) NodeCount: 533
0.10/0.17	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 |****************************************************************| ( 2/999) NodeCount: 3093
0.89/0.98	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 |*************************************************
c |**************************************************
c |***************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| ( 3/999) NodeCount: 14043
4.89/4.99	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 |******************************
6.89/6.93	c |10000100100000000000000010000000000000$$$$$$$$$$$$$$$$$$$$$$$$$|
6.89/6.93	
c |******************************
6.89/6.93	c
6.89/6.93	c main():: nodeCount: 19629
6.89/6.93	c main():: dead ends in main: 169
6.89/6.93	c main():: lookAheadCount: 1434459
6.89/6.93	c main():: unitResolveCount: 157561
6.89/6.93	c main():: time=6.920000
6.89/6.93	c main():: necessary_assignments: 3291
6.89/6.93	c main():: bin_sat: 0, bin_unsat 0
6.89/6.93	c main():: doublelook: #: 50760, succes #: 26153
6.89/6.93	c main():: doublelook: overall 3.592 of all possible doublelooks executed
6.89/6.93	c main():: doublelook: succesrate: 51.523, average DL_trigger: 47.635
6.89/6.93	c main():: SOLUTION VERIFIED :-)
6.89/6.93	s SATISFIABLE
6.89/6.93	v 2 -3 4 5 -6 7 -8 -9 10 -11 -12 -13 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 -63 -64 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 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 -122 123 -124 125 126 -127 -128 129 130 131 -132 133 -135 -136 137 -138 -139 -140 142 -143 -144 -145 -146 147 -148 -149 150 -151 152 153 154 155 156 157 159 160 161 162 163 164 -165 166 -167 -168 169 -170 171 172 -173 174 175 -176 177 178 -179 -180 181 182 -183 -184 -185 -186 -187 191 -192 193 -194 -195 196 197 -199 200 201 -202 -203 204 205 -206 -207 208 209 210 -211 212 213 214 215 -216 217 -218 219 -220 -221 -223 224 -225 -226 -227 228 -229 -230 231 232 233 234 -235 -236 -237 -238 -239 -240 -242 -243 -244 245 246 247 -248 -250 -251 252 253 254 255 -256 -257 -258 -259 -260 -261 262 -263 264 -266 267 -268 -269 -270 271 -272 -273 274 -275 276 -277 -278 279 -280 281 282 283 285 -286 287 288 -289 -290 291 292 293 294 -295 296 -297 -298 299 300 -303 304 305 306 307 -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 -337 338 339 340 -341 342 -343 344 -346 -347 348 349 350 -351 352 353 354 355 -356 357 358 359 360 361 363 364 365 -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 -397 398 -399 -400 401 -402 -403 -404 405 406 407 -408 409 -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-1628212-1240141179/watcher-1628212-1240141179 -o /tmp/evaluation-result-1628212-1240141179/solver-1628212-1240141179 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1628212-1240141179.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: 1.10 1.03 1.00 2/65 27042
/proc/meminfo: memFree=1198576/2055920 swapFree=4192956/4192956
[pid=27042] ppid=27040 vsize=984 CPUtime=0
/proc/27042/stat : 27042 (march_hi) R 27040 27042 25638 0 -1 4194304 140 0 0 0 0 0 0 0 18 0 1 0 42147275 1007616 123 1992294400 134512640 135197378 4294956240 18446744073709551615 134535888 0 0 4096 0 0 0 0 17 0 0 0
/proc/27042/statm: 246 123 66 167 0 77 0

[startup+0.0679941 s]
/proc/loadavg: 1.10 1.03 1.00 2/65 27042
/proc/meminfo: memFree=1198576/2055920 swapFree=4192956/4192956
[pid=27042] ppid=27040 vsize=1580 CPUtime=0.06
/proc/27042/stat : 27042 (march_hi) R 27040 27042 25638 0 -1 4194304 269 0 0 0 6 0 0 0 18 0 1 0 42147275 1617920 252 1992294400 134512640 135197378 4294956240 18446744073709551615 134525420 0 0 4096 0 0 0 0 17 0 0 0
/proc/27042/statm: 395 252 91 167 0 226 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1580

[startup+0.101997 s]
/proc/loadavg: 1.10 1.03 1.00 2/65 27042
/proc/meminfo: memFree=1198576/2055920 swapFree=4192956/4192956
[pid=27042] ppid=27040 vsize=1716 CPUtime=0.1
/proc/27042/stat : 27042 (march_hi) R 27040 27042 25638 0 -1 4194304 272 0 0 0 10 0 0 0 18 0 1 0 42147275 1757184 255 1992294400 134512640 135197378 4294956240 18446744073709551615 134542165 0 0 4096 0 0 0 0 17 0 0 0
/proc/27042/statm: 429 255 91 167 0 260 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1716

[startup+0.302023 s]
/proc/loadavg: 1.10 1.03 1.00 2/65 27042
/proc/meminfo: memFree=1198576/2055920 swapFree=4192956/4192956
[pid=27042] ppid=27040 vsize=1716 CPUtime=0.3
/proc/27042/stat : 27042 (march_hi) R 27040 27042 25638 0 -1 4194304 286 0 0 0 30 0 0 0 20 0 1 0 42147275 1757184 269 1992294400 134512640 135197378 4294956240 18446744073709551615 134542269 0 0 4096 0 0 0 0 17 0 0 0
/proc/27042/statm: 429 269 91 167 0 260 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1716

[startup+0.701071 s]
/proc/loadavg: 1.10 1.03 1.00 2/65 27042
/proc/meminfo: memFree=1198576/2055920 swapFree=4192956/4192956
[pid=27042] ppid=27040 vsize=1852 CPUtime=0.69
/proc/27042/stat : 27042 (march_hi) R 27040 27042 25638 0 -1 4194304 306 0 0 0 69 0 0 0 24 0 1 0 42147275 1896448 289 1992294400 134512640 135197378 4294956240 18446744073709551615 134525420 0 0 4096 0 0 0 0 17 0 0 0
/proc/27042/statm: 463 289 91 167 0 294 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1852

[startup+1.50117 s]
/proc/loadavg: 1.09 1.03 1.00 2/66 27043
/proc/meminfo: memFree=1197736/2055920 swapFree=4192956/4192956
[pid=27042] ppid=27040 vsize=1988 CPUtime=1.49
/proc/27042/stat : 27042 (march_hi) R 27040 27042 25638 0 -1 4194304 345 0 0 0 149 0 0 0 25 0 1 0 42147275 2035712 328 1992294400 134512640 135197378 4294956240 18446744073709551615 134590377 0 0 4096 0 0 0 0 17 0 0 0
/proc/27042/statm: 497 328 91 167 0 328 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1988

[startup+3.10137 s]
/proc/loadavg: 1.09 1.03 1.00 2/66 27043
/proc/meminfo: memFree=1197416/2055920 swapFree=4192956/4192956
[pid=27042] ppid=27040 vsize=2156 CPUtime=3.09
/proc/27042/stat : 27042 (march_hi) R 27040 27042 25638 0 -1 4194304 385 0 0 0 309 0 0 0 25 0 1 0 42147275 2207744 368 1992294400 134512640 135197378 4294956240 18446744073709551615 134542109 0 0 4096 0 0 0 0 17 0 0 0
/proc/27042/statm: 539 368 91 167 0 370 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2156

[startup+6.30177 s]
/proc/loadavg: 1.09 1.03 1.00 2/66 27043
/proc/meminfo: memFree=1197104/2055920 swapFree=4192956/4192956
[pid=27042] ppid=27040 vsize=2500 CPUtime=6.29
/proc/27042/stat : 27042 (march_hi) R 27040 27042 25638 0 -1 4194304 471 0 0 0 629 0 0 0 25 0 1 0 42147275 2560000 454 1992294400 134512640 135197378 4294956240 18446744073709551615 134539323 0 0 4096 0 0 0 0 17 0 0 0
/proc/27042/statm: 625 454 91 167 0 456 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2500

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

[startup+6.70183 s]
/proc/loadavg: 1.08 1.03 1.00 2/66 27043
/proc/meminfo: memFree=1196912/2055920 swapFree=4192956/4192956
[pid=27042] ppid=27040 vsize=2500 CPUtime=6.69
/proc/27042/stat : 27042 (march_hi) R 27040 27042 25638 0 -1 4194304 480 0 0 0 669 0 0 0 25 0 1 0 42147275 2560000 463 1992294400 134512640 135197378 4294956240 18446744073709551615 134552490 0 0 4096 0 0 0 0 17 0 0 0
/proc/27042/statm: 625 463 91 167 0 456 0
Current children cumulated CPU time (s) 6.69
Current children cumulated vsize (KiB) 2500

[startup+6.90185 s]
/proc/loadavg: 1.08 1.03 1.00 2/66 27043
/proc/meminfo: memFree=1196912/2055920 swapFree=4192956/4192956
[pid=27042] ppid=27040 vsize=2728 CPUtime=6.89
/proc/27042/stat : 27042 (march_hi) R 27040 27042 25638 0 -1 4194304 484 0 0 0 689 0 0 0 25 0 1 0 42147275 2793472 467 1992294400 134512640 135197378 4294956240 18446744073709551615 134539302 0 0 4096 0 0 0 0 17 0 0 0
/proc/27042/statm: 682 467 91 167 0 513 0
Current children cumulated CPU time (s) 6.89
Current children cumulated vsize (KiB) 2728

Child status: 10
Real time (s): 6.93376
CPU time (s): 6.92894
CPU user time (s): 6.92695
CPU system time (s): 0.001999
CPU usage (%): 99.9306
Max. virtual memory (cumulated for all children) (KiB): 2728

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.92695
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 490
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= 103

runsolver used 0.008998 second user time and 0.027995 second system time

The end

Launcher Data 

Begin job on node92 at 2009-04-19 13:39:39
IDJOB=1628212
IDBENCH=70668
IDSOLVER=583
FILE ID=node92/1628212-1240141179
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-S311671104-045.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1628212-1240141179/watcher-1628212-1240141179 -o /tmp/evaluation-result-1628212-1240141179/solver-1628212-1240141179 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1628212-1240141179.cnf

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

MD5SUM BENCH= b892d03833c64865c28a6c109f19fcb2
RANDOM SEED=1761573317

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:       1198992 kB
Buffers:         76040 kB
Cached:         710516 kB
SwapCached:          0 kB
Active:         593960 kB
Inactive:       206348 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1198992 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:             904 kB
Writeback:           0 kB
Mapped:          23516 kB
Slab:            42496 kB
Committed_AS:   170000 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 13:39:46