Trace number 1627014

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: SATzilla RANDOMSAT 2.71759 2.71883

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/380/
unif-k3-r4.25-v380-c1615-S1841979702-078.cnf
MD5SUM53069fa4d3b9f0f792df2e9bdae5662b
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.014997
Satisfiable
(Un)Satisfiability was proved
Number of variables380
Number of clauses1615
Sum of the clauses size4845
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31615
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

2.69/2.71	c run March_dl for 5 seconds ... 
2.69/2.71	c Bin: Executing march_dl
2.69/2.71	c child exited successfully
2.69/2.71	c march_dl returned code 10.
2.69/2.71	c main():: ***                                   [ march satisfiability solver ]                                   ***
2.69/2.71	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
2.69/2.71	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
2.69/2.71	c main()::
2.69/2.71	c initFormula():: searching for DIMACS p-line....
2.69/2.71	c initFormula():: the DIMACS p-line indicates a CNF of 380 variables and 1615 clauses.
2.69/2.71	c parseCNF():: parsing....
2.69/2.71	c parseCNF():: the CNF contains 0 unary clauses.
2.69/2.71	c runParser():: parsing was successful, warming up engines...
2.69/2.71	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
2.69/2.71	c preprocessing fase I completed:: there are now 380 free variables and 1615 clauses.
2.69/2.71	c shorten_equivalence(): average equivalence length reduced from nan to nan
2.69/2.71	c doublelook_init():: 90% succes rate goal.
2.69/2.71	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 0
2.69/2.71	c lessRedundantTransformation():: nothing to be done.
2.69/2.71	c transformTo3SAT():: you gave me 380 variables and 1615 clauses.
2.69/2.71	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
2.69/2.71	c transformTo3SAT():: CHAINPLUS defined.
2.69/2.71	c transformTo3SAT():: I will add 0 variables and 0 clauses!
2.69/2.71	c transformTo3SAT():: the transformation yielded 380 variabels and 1615 clauses.
2.69/2.71	c main():: clause / variable ratio: ( 1615 / 380 ) = 4.25
2.69/2.71	c doublelook_init():: 90% succes rate goal.
2.69/2.71	c AddTernaryResolvents(): ternary clauses increased from 1615 to 1690
2.69/2.71	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 0
2.69/2.71	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
2.69/2.71	c check_ternary_clause_density :: high
2.69/2.71	c root full lookahead
2.69/2.71	c freevars: 380, independend: 380, ternary clauses: 1690 
2.69/2.71	c main():: all systems go!
2.69/2.71	c |----------------------------------------------------------------|
c |
2.69/2.71	c
2.69/2.71	c main():: nodeCount: 11661
2.69/2.71	c main():: dead ends in main: 273
2.69/2.71	c main():: lookAheadCount: 726981
2.69/2.71	c main():: unitResolveCount: 143276
2.69/2.71	c main():: time=2.710000
2.69/2.71	c main():: necessary_assignments: 3838
2.69/2.71	c main():: bin_sat: 0, bin_unsat 0
2.69/2.71	c main():: doublelook: #: 17984, succes #: 16164
2.69/2.71	c main():: doublelook: succesrate: 89.880, threshold: 0.217 * nrofvars
2.69/2.71	c main():: SOLUTION VERIFIED :-)
2.69/2.71	s SATISFIABLE
2.69/2.71	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 0
2.69/2.71	c SATZILLA_TIME=2.710000

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-1627014-1240142355/watcher-1627014-1240142355 -o /tmp/evaluation-result-1627014-1240142355/solver-1627014-1240142355 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/SATzilla2007_R HOME/instance-1627014-1240142355.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: 0.89 0.94 0.98 3/65 24606
/proc/meminfo: memFree=1094808/2055920 swapFree=4192956/4192956
[pid=24606] ppid=24604 vsize=1440 CPUtime=0
/proc/24606/stat : 24606 (SATzilla2007_R) R 24604 24606 24000 0 -1 4194304 126 0 0 0 0 0 0 0 18 0 1 0 42265346 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216547 0 0 4096 0 0 0 0 17 0 0 0
/proc/24606/statm: 360 110 95 260 0 84 0
[pid=24607] ppid=24606 vsize=772 CPUtime=0
/proc/24607/stat : 24607 (march_dl) R 24606 24606 24000 0 -1 4194304 109 0 0 0 0 0 0 0 18 0 1 0 42265346 790528 101 1992294400 134512640 134996440 4294956256 18446744073709551615 134617565 0 0 8392704 0 0 0 0 17 0 0 0
/proc/24607/statm: 193 101 53 118 0 72 0

[startup+0.0398209 s]
/proc/loadavg: 0.89 0.94 0.98 3/65 24606
/proc/meminfo: memFree=1094808/2055920 swapFree=4192956/4192956
[pid=24606] ppid=24604 vsize=1440 CPUtime=0
/proc/24606/stat : 24606 (SATzilla2007_R) S 24604 24606 24000 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 42265346 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/24606/statm: 360 110 95 260 0 84 0
[pid=24607] ppid=24606 vsize=1120 CPUtime=0.03
/proc/24607/stat : 24607 (march_dl) R 24606 24606 24000 0 -1 4194304 209 0 0 0 3 0 0 0 19 0 1 0 42265346 1146880 201 1992294400 134512640 134996440 4294956256 18446744073709551615 134514046 0 0 8392704 0 0 0 0 17 0 0 0
/proc/24607/statm: 280 201 74 118 0 159 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 2560

[startup+0.101826 s]
/proc/loadavg: 0.89 0.94 0.98 3/65 24606
/proc/meminfo: memFree=1094808/2055920 swapFree=4192956/4192956
[pid=24606] ppid=24604 vsize=1440 CPUtime=0
/proc/24606/stat : 24606 (SATzilla2007_R) S 24604 24606 24000 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 42265346 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/24606/statm: 360 110 95 260 0 84 0
[pid=24607] ppid=24606 vsize=1120 CPUtime=0.1
/proc/24607/stat : 24607 (march_dl) R 24606 24606 24000 0 -1 4194304 221 0 0 0 10 0 0 0 19 0 1 0 42265346 1146880 213 1992294400 134512640 134996440 4294956256 18446744073709551615 134514060 0 0 8392704 0 0 0 0 17 0 0 0
/proc/24607/statm: 280 213 74 118 0 159 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2560

[startup+0.301847 s]
/proc/loadavg: 0.89 0.94 0.98 3/65 24606
/proc/meminfo: memFree=1094808/2055920 swapFree=4192956/4192956
[pid=24606] ppid=24604 vsize=1440 CPUtime=0
/proc/24606/stat : 24606 (SATzilla2007_R) S 24604 24606 24000 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 42265346 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/24606/statm: 360 110 95 260 0 84 0
[pid=24607] ppid=24606 vsize=1120 CPUtime=0.3
/proc/24607/stat : 24607 (march_dl) R 24606 24606 24000 0 -1 4194304 228 0 0 0 30 0 0 0 21 0 1 0 42265346 1146880 220 1992294400 134512640 134996440 4294956256 18446744073709551615 134565230 0 0 8392704 0 0 0 0 17 0 0 0
/proc/24607/statm: 280 220 74 118 0 159 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 2560

[startup+0.70189 s]
/proc/loadavg: 0.89 0.94 0.98 3/65 24606
/proc/meminfo: memFree=1094808/2055920 swapFree=4192956/4192956
[pid=24606] ppid=24604 vsize=1440 CPUtime=0
/proc/24606/stat : 24606 (SATzilla2007_R) S 24604 24606 24000 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 42265346 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/24606/statm: 360 110 95 260 0 84 0
[pid=24607] ppid=24606 vsize=1120 CPUtime=0.7
/proc/24607/stat : 24607 (march_dl) R 24606 24606 24000 0 -1 4194304 233 0 0 0 70 0 0 0 25 0 1 0 42265346 1146880 225 1992294400 134512640 134996440 4294956256 18446744073709551615 134532814 0 0 8392704 0 0 0 0 17 0 0 0
/proc/24607/statm: 280 225 74 118 0 159 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 2560

[startup+1.50198 s]
/proc/loadavg: 0.89 0.94 0.98 2/67 24608
/proc/meminfo: memFree=1094024/2055920 swapFree=4192956/4192956
[pid=24606] ppid=24604 vsize=1440 CPUtime=0
/proc/24606/stat : 24606 (SATzilla2007_R) S 24604 24606 24000 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 42265346 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/24606/statm: 360 110 95 260 0 84 0
[pid=24607] ppid=24606 vsize=1120 CPUtime=1.5
/proc/24607/stat : 24607 (march_dl) R 24606 24606 24000 0 -1 4194304 238 0 0 0 150 0 0 0 25 0 1 0 42265346 1146880 230 1992294400 134512640 134996440 4294956256 18446744073709551615 134532803 0 0 8392704 0 0 0 0 17 0 0 0
/proc/24607/statm: 280 230 74 118 0 159 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 2560

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

[startup+2.30106 s]
/proc/loadavg: 0.89 0.94 0.98 2/67 24608
/proc/meminfo: memFree=1093704/2055920 swapFree=4192956/4192956
[pid=24606] ppid=24604 vsize=1440 CPUtime=0
/proc/24606/stat : 24606 (SATzilla2007_R) S 24604 24606 24000 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 42265346 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/24606/statm: 360 110 95 260 0 84 0
[pid=24607] ppid=24606 vsize=1252 CPUtime=2.29
/proc/24607/stat : 24607 (march_dl) R 24606 24606 24000 0 -1 4194304 241 0 0 0 229 0 0 0 25 0 1 0 42265346 1282048 233 1992294400 134512640 134996440 4294956256 18446744073709551615 134551345 0 0 8392704 0 0 0 0 17 0 0 0
/proc/24607/statm: 313 233 74 118 0 192 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 2692

[startup+2.7011 s]
/proc/loadavg: 0.89 0.94 0.98 2/67 24608
/proc/meminfo: memFree=1093704/2055920 swapFree=4192956/4192956
[pid=24606] ppid=24604 vsize=1440 CPUtime=0
/proc/24606/stat : 24606 (SATzilla2007_R) S 24604 24606 24000 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 42265346 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/24606/statm: 360 110 95 260 0 84 0
[pid=24607] ppid=24606 vsize=1252 CPUtime=2.69
/proc/24607/stat : 24607 (march_dl) R 24606 24606 24000 0 -1 4194304 243 0 0 0 269 0 0 0 25 0 1 0 42265346 1282048 235 1992294400 134512640 134996440 4294956256 18446744073709551615 134552314 0 0 8392704 0 0 0 0 17 0 0 0
/proc/24607/statm: 313 235 74 118 0 192 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 2692

Child status: 10
Real time (s): 2.71883
CPU time (s): 2.71759
CPU user time (s): 2.71759
CPU system time (s): 0
CPU usage (%): 99.9541
Max. virtual memory (cumulated for all children) (KiB): 2692

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.71759
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= 401
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= 4
involuntary context switches= 9

runsolver used 0.004999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node81 at 2009-04-19 13:59:15
IDJOB=1627014
IDBENCH=70742
IDSOLVER=581
FILE ID=node81/1627014-1240142355
PBS_JOBID= 9157901
Free space on /tmp= 126584 MiB

SOLVER NAME= SAT07 reference solver: SATzilla RANDOM
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/380/unif-k3-r4.25-v380-c1615-S1841979702-078.cnf
COMMAND LINE= HOME/SATzilla2007_R BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1627014-1240142355/watcher-1627014-1240142355 -o /tmp/evaluation-result-1627014-1240142355/solver-1627014-1240142355 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/SATzilla2007_R HOME/instance-1627014-1240142355.cnf            

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

MD5SUM BENCH= 53069fa4d3b9f0f792df2e9bdae5662b
RANDOM SEED=1311738806

node81.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		: 3000.234
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		: 3000.234
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:       1095288 kB
Buffers:         89400 kB
Cached:         771548 kB
SwapCached:          0 kB
Active:         386480 kB
Inactive:       489248 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1095288 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            9032 kB
Writeback:           0 kB
Mapped:          24488 kB
Slab:            70684 kB
Committed_AS:   204072 kB
PageTables:       1452 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 126576 MiB
End job on node81 at 2009-04-19 13:59:18