Trace number 1628235

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 7.2279 7.23071

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) 2001-2009 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, 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 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 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 number of free variables = 397
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 |****************************************************************| ( 0/14) NodeCount: 145
0.06/0.08	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| ( 1/14) NodeCount: 2562
1.10/1.18	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 |****************************************************************| ( 2/14) NodeCount: 11274
5.19/5.21	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 |***************************************
7.19/7.23	c |01100000100000.00000001000000000000$$$$$$$$$$$$$$$$$$$$$$$$$$$$$|
7.19/7.23	
c |***************************************
7.19/7.23	c
7.19/7.23	c main():: nodeCount: 15751
7.19/7.23	c main():: dead ends in main: 385
7.19/7.23	c main():: lookAheadCount: 1020822
7.19/7.23	c main():: unitResolveCount: 170893
7.19/7.23	c main():: time=7.220000
7.19/7.23	c main():: necessary_assignments: 3732
7.19/7.23	c main():: bin_sat: 0, bin_unsat 0
7.19/7.23	c main():: doublelook: #: 59100, succes #: 42158
7.19/7.23	c main():: doublelook: overall 5.994 of all possible doublelooks executed
7.19/7.23	c main():: doublelook: succesrate: 71.333, average DL_trigger: 46.964
7.19/7.23	c main():: SOLUTION VERIFIED :-)
7.19/7.23	s SATISFIABLE
7.19/7.23	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 -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 -79 80 81 -82 83 -84 85 -86 87 -88 -89 -90 91 -92 -93 -94 -95 96 -97 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 -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 -211 212 213 215 -216 217 218 221 222 223 224 -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 -257 -258 259 -260 261 -262 263 -264 265 -266 -267 -268 269 270 271 -272 -273 -274 -275 276 -277 -278 279 281 -282 -283 284 -285 -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 -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 -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-1628235-1240141692/watcher-1628235-1240141692 -o /tmp/evaluation-result-1628235-1240141692/solver-1628235-1240141692 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1628235-1240141692.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: 0.99 0.97 0.98 3/64 25681
/proc/meminfo: memFree=728176/2055920 swapFree=4192956/4192956
[pid=25681] ppid=25679 vsize=976 CPUtime=0
/proc/25681/stat : 25681 (march_hi) R 25679 25681 25369 0 -1 4194304 136 0 0 0 0 0 0 0 18 0 1 0 42202134 999424 119 1992294400 134512640 135197378 4294956240 18446744073709551615 134565317 0 0 4096 0 0 0 0 17 1 0 0
/proc/25681/statm: 244 120 66 167 0 75 0

[startup+0.07095 s]
/proc/loadavg: 0.99 0.97 0.98 3/64 25681
/proc/meminfo: memFree=728176/2055920 swapFree=4192956/4192956
[pid=25681] ppid=25679 vsize=1556 CPUtime=0.06
/proc/25681/stat : 25681 (march_hi) R 25679 25681 25369 0 -1 4194304 250 0 0 0 6 0 0 0 18 0 1 0 42202134 1593344 233 1992294400 134512640 135197378 4294956240 18446744073709551615 134542043 0 0 4096 0 0 0 0 17 1 0 0
/proc/25681/statm: 389 233 91 167 0 220 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1556

[startup+0.101954 s]
/proc/loadavg: 0.99 0.97 0.98 3/64 25681
/proc/meminfo: memFree=728176/2055920 swapFree=4192956/4192956
[pid=25681] ppid=25679 vsize=1556 CPUtime=0.1
/proc/25681/stat : 25681 (march_hi) R 25679 25681 25369 0 -1 4194304 260 0 0 0 10 0 0 0 18 0 1 0 42202134 1593344 243 1992294400 134512640 135197378 4294956240 18446744073709551615 134615966 0 0 4096 0 0 0 0 17 1 0 0
/proc/25681/statm: 389 243 91 167 0 220 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1556

[startup+0.301986 s]
/proc/loadavg: 0.99 0.97 0.98 3/64 25681
/proc/meminfo: memFree=728176/2055920 swapFree=4192956/4192956
[pid=25681] ppid=25679 vsize=1688 CPUtime=0.3
/proc/25681/stat : 25681 (march_hi) R 25679 25681 25369 0 -1 4194304 272 0 0 0 30 0 0 0 19 0 1 0 42202134 1728512 255 1992294400 134512640 135197378 4294956240 18446744073709551615 134541916 0 0 4096 0 0 0 0 17 1 0 0
/proc/25681/statm: 422 255 91 167 0 253 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1688

[startup+0.701049 s]
/proc/loadavg: 0.99 0.97 0.98 3/64 25681
/proc/meminfo: memFree=728176/2055920 swapFree=4192956/4192956
[pid=25681] ppid=25679 vsize=1688 CPUtime=0.69
/proc/25681/stat : 25681 (march_hi) R 25679 25681 25369 0 -1 4194304 277 0 0 0 69 0 0 0 22 0 1 0 42202134 1728512 260 1992294400 134512640 135197378 4294956240 18446744073709551615 134542050 0 0 4096 0 0 0 0 17 1 0 0
/proc/25681/statm: 422 260 91 167 0 253 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1688

[startup+1.50118 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 25682
/proc/meminfo: memFree=727464/2055920 swapFree=4192956/4192956
[pid=25681] ppid=25679 vsize=1688 CPUtime=1.49
/proc/25681/stat : 25681 (march_hi) R 25679 25681 25369 0 -1 4194304 285 0 0 0 149 0 0 0 25 0 1 0 42202134 1728512 268 1992294400 134512640 135197378 4294956240 18446744073709551615 134552479 0 0 4096 0 0 0 0 17 1 0 0
/proc/25681/statm: 422 268 91 167 0 253 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1688

[startup+3.10243 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 25682
/proc/meminfo: memFree=727336/2055920 swapFree=4192956/4192956
[pid=25681] ppid=25679 vsize=1688 CPUtime=3.1
/proc/25681/stat : 25681 (march_hi) R 25679 25681 25369 0 -1 4194304 294 0 0 0 310 0 0 0 25 0 1 0 42202134 1728512 277 1992294400 134512640 135197378 4294956240 18446744073709551615 134525344 0 0 4096 0 0 0 0 17 1 0 0
/proc/25681/statm: 422 277 91 167 0 253 0
Current children cumulated CPU time (s) 3.1
Current children cumulated vsize (KiB) 1688

[startup+6.30194 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 25682
/proc/meminfo: memFree=727208/2055920 swapFree=4192956/4192956
[pid=25681] ppid=25679 vsize=1824 CPUtime=6.29
/proc/25681/stat : 25681 (march_hi) R 25679 25681 25369 0 -1 4194304 307 0 0 0 629 0 0 0 25 0 1 0 42202134 1867776 290 1992294400 134512640 135197378 4294956240 18446744073709551615 134539266 0 0 4096 0 0 0 0 17 1 0 0
/proc/25681/statm: 456 290 91 167 0 287 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1824

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

[startup+6.70201 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 25682
/proc/meminfo: memFree=727144/2055920 swapFree=4192956/4192956
[pid=25681] ppid=25679 vsize=1824 CPUtime=6.69
/proc/25681/stat : 25681 (march_hi) R 25679 25681 25369 0 -1 4194304 307 0 0 0 669 0 0 0 25 0 1 0 42202134 1867776 290 1992294400 134512640 135197378 4294956240 18446744073709551615 134548486 0 0 4096 0 0 0 0 17 1 0 0
/proc/25681/statm: 456 290 91 167 0 287 0
Current children cumulated CPU time (s) 6.69
Current children cumulated vsize (KiB) 1824

[startup+7.10107 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 25682
/proc/meminfo: memFree=727144/2055920 swapFree=4192956/4192956
[pid=25681] ppid=25679 vsize=1824 CPUtime=7.09
/proc/25681/stat : 25681 (march_hi) R 25679 25681 25369 0 -1 4194304 307 0 0 0 709 0 0 0 25 0 1 0 42202134 1867776 290 1992294400 134512640 135197378 4294956240 18446744073709551615 134539276 0 0 4096 0 0 0 0 17 1 0 0
/proc/25681/statm: 456 290 91 167 0 287 0
Current children cumulated CPU time (s) 7.09
Current children cumulated vsize (KiB) 1824

[startup+7.20109 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 25682
/proc/meminfo: memFree=727144/2055920 swapFree=4192956/4192956
[pid=25681] ppid=25679 vsize=1824 CPUtime=7.19
/proc/25681/stat : 25681 (march_hi) R 25679 25681 25369 0 -1 4194304 307 0 0 0 719 0 0 0 25 0 1 0 42202134 1867776 290 1992294400 134512640 135197378 4294956240 18446744073709551615 134539309 0 0 4096 0 0 0 0 17 1 0 0
/proc/25681/statm: 456 290 91 167 0 287 0
Current children cumulated CPU time (s) 7.19
Current children cumulated vsize (KiB) 1824

Child status: 10
Real time (s): 7.23071
CPU time (s): 7.2279
CPU user time (s): 7.2279
CPU system time (s): 0
CPU usage (%): 99.9612
Max. virtual memory (cumulated for all children) (KiB): 1824

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.2279
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 312
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= 16

runsolver used 0.006998 second user time and 0.023996 second system time

The end

Launcher Data 

Begin job on node26 at 2009-04-19 13:48:12
IDJOB=1628235
IDBENCH=70691
IDSOLVER=583
FILE ID=node26/1628235-1240141692
PBS_JOBID= 9159265
Free space on /tmp= 66172 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/400/unif-k3-r4.25-v400-c1700-S172053238-003.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1628235-1240141692/watcher-1628235-1240141692 -o /tmp/evaluation-result-1628235-1240141692/solver-1628235-1240141692 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1628235-1240141692.cnf

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

MD5SUM BENCH= d645722ef726f8347e5e1cd19bda8fdf
RANDOM SEED=1921598282

node26.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		: 3000.261
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		: 3000.261
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:        728656 kB
Buffers:         97196 kB
Cached:        1122724 kB
SwapCached:          0 kB
Active:         572556 kB
Inactive:       661192 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        728656 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:             796 kB
Writeback:           0 kB
Mapped:          23620 kB
Slab:            79608 kB
Committed_AS:   151428 kB
PageTables:       1368 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= 66172 MiB
End job on node26 at 2009-04-19 13:48:19