Trace number 3206179
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:
-
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.
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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.
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CONVERSION SCRIPT DATA (Optionnal)
When a conversion script is used, this section shows the messages that were output by the conversion script.
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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.
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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
General information on the benchmark
| Name | random/medium/
unif-k3-r4.26-v450-c1917-S1097024859-001.SATISFIABLE.cnf |
| MD5SUM | 94bd96d1179fc3c253160c710014f1d5 |
| Bench Category | RANDOM (random instances) |
| Best result obtained on this benchmark | SAT |
| Best CPU time to get the best result obtained on this benchmark | 0.001999 |
| Satisfiable | |
| (Un)Satisfiability was proved | |
| Number of variables | 450 |
| Number of clauses | 1917 |
| Sum of the clauses size | 5751 |
| Maximum clause length | 3 |
| Minimum clause length | 3 |
| Number of clauses of size 1 | 0 |
| Number of clauses of size 2 | 0 |
| Number of clauses of size 3 | 1917 |
| Number of clauses of size 4 | 0 |
| Number of clauses of size 5 | 0 |
| Number of clauses of size over 5 | 0 |
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 450 variables and 1917 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 448 free variables and 1906 clauses.
0.00/0.01 c stat :: sign balance is biased by 0.489
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 157 duplicate clauses
0.00/0.01 c resolvent_look() :: found 84 resolvents
0.00/0.01 c lessRedundantTransformation():: nothing to be done.
0.00/0.01 c transformTo3SAT():: you gave me 450 variables and 1990 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 450 variabels and 1990 clauses.
0.00/0.01 c main():: clause / variable ratio: ( 1990 / 450 ) = 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 = 448
0.00/0.01 c dynamic_preselect_setsize :: off
0.00/0.01 c main():: all systems go!
0.00/0.01 c |----------------------------------------------------------------|
0.00/0.03 c |.00000000000000000000000000100100000000000000000$$$$$$$$$$$$$$$$|
0.00/0.03
c |
0.00/0.03 c
0.00/0.03 c main():: nodeCount: 103
0.00/0.03 c main():: dead ends in main: 7
0.00/0.03 c main():: lookAheadCount: 7377
0.00/0.03 c main():: unitResolveCount: 1739
0.00/0.03 c main():: time=0.030000
0.00/0.03 c main():: necessary_assignments: 70
0.00/0.03 c main():: bin_sat: 0, bin_unsat 0
0.00/0.03 c main():: doublelook: #: 229, succes #: 129
0.00/0.03 c main():: doublelook: overall 3.181 of all possible doublelooks executed
0.00/0.03 c main():: doublelook: succesrate: 56.332, average DL_trigger: 39.169
0.00/0.03 c main():: SOLUTION VERIFIED :-)
0.00/0.03 s SATISFIABLE
0.00/0.03 v -1 2 3 -4 -5 -6 -7 8 9 -10 11 12 13 14 15 16 -17 -19 21 22 23 24 25 26 27 -28 29 -30 31 -32 33 34 -35 -36 37 38 -39 40 -42 -43 44 45 -46 -47 48 -49 -50 51 -52 -53 -54 -56 -57 58 -59 60 61 -62 -63 -64 -65 66 67 -68 -69 71 -72 73 74 75 76 -77 -78 -79 -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 -107 109 110 -111 -112 -113 114 -115 116 117 118 -119 120 -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 -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 -229 230 231 233 -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 -280 282 -283 -284 285 286 287 -288 289 -290 291 -292 -293 -294 295 -296 297 298 299 301 -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 -356 -357 -358 -359 -361 -362 -363 364 365 366 367 -368 -369 370 371 -372 -373 -374 -375 -376 377 378 379 -380 381 382 384 385 387 -388 389 -390 -391 -392 -393 394 -395 -396 397 -398 -399 -400 401 -402 -403 404 -405 406 407 408 409 -410 -411 -412 413 -414 415 416 -417 418 -419 -420 421 -422 -423 -424 425 -426 427 428 -429 -430 -431 432 -434 -435 436 -437 -439 -440 -441 -442 -443 444 -446 447 -448 -449 -450 0
Verifier Data
Watcher Data
runsolver Copyright (C) 2010-2011 Olivier ROUSSEL
This is runsolver version 3.3.0 (svn: 935)
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3206179-1302955596/watcher-3206179-1302955596 -o /tmp/evaluation-result-3206179-1302955596/solver-3206179-1302955596 -C 2400 -W 1300 -M 7680 HOME/march_hi HOME/instance-3206179-1302955596.cnf
running on 2 cores: 0,2
Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 7864320 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 7915520 KiB
Current StackSize limit: 10240 KiB
[startup+0 s]
/proc/loadavg: 0.94 2.10 2.99 2/175 28061
/proc/meminfo: memFree=18105428/32950928 swapFree=67111528/67111528
[pid=28061] ppid=28059 vsize=1052 CPUtime=0 cores=0,2
/proc/28061/stat : 28061 (march_hi) R 28059 28061 28025 0 -1 4202496 185 0 0 0 0 0 0 0 24 0 1 0 407159253 1077248 139 33554432000 134512640 135197378 4291906304 18446744073709551615 134579648 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/28061/statm: 263 139 80 168 0 94 0
Solver just ended. Dumping a history of the last processes samples
Child status: 10
Real time (s): 0.031299
CPU time (s): 0.030994
CPU user time (s): 0.029995
CPU system time (s): 0.000999
CPU usage (%): 99.0254
Max. virtual memory (cumulated for all children) (KiB): 0
getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.029995
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= 329
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= 0
runsolver used 0.001999 second user time and 0.003999 second system time
The end
Launcher Data
Begin job on node125 at 2011-04-16 14:06:36
IDJOB=3206179
IDBENCH=83003
IDSOLVER=1623
FILE ID=node125/3206179-1302955596
RUNJOBID= node125-1302955596-28043
PBS_JOBID= 13018011
Free space on /tmp= 72276 MiB
SOLVER NAME= SAT09 reference solver: march_hi hi
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v450-c1917-S1097024859-001.SATISFIABLE.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3206179-1302955596/watcher-3206179-1302955596 -o /tmp/evaluation-result-3206179-1302955596/solver-3206179-1302955596 -C 2400 -W 1300 -M 7680 HOME/march_hi HOME/instance-3206179-1302955596.cnf
TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2
MD5SUM BENCH= 94bd96d1179fc3c253160c710014f1d5
RANDOM SEED=320290107
node125.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009
/proc/cpuinfo:
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 26
model name : Intel(R) Xeon(R) CPU X5550 @ 2.67GHz
stepping : 5
cpu MHz : 2666.828
cache size : 8192 KB
physical id : 0
siblings : 4
core id : 0
cpu cores : 4
apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips : 5333.65
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: [8]
processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 26
model name : Intel(R) Xeon(R) CPU X5550 @ 2.67GHz
stepping : 5
cpu MHz : 2666.828
cache size : 8192 KB
physical id : 1
siblings : 4
core id : 0
cpu cores : 4
apicid : 16
fpu : yes
fpu_exception : yes
cpuid level : 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips : 5266.55
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: [8]
processor : 2
vendor_id : GenuineIntel
cpu family : 6
model : 26
model name : Intel(R) Xeon(R) CPU X5550 @ 2.67GHz
stepping : 5
cpu MHz : 2666.828
cache size : 8192 KB
physical id : 0
siblings : 4
core id : 1
cpu cores : 4
apicid : 2
fpu : yes
fpu_exception : yes
cpuid level : 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips : 5332.84
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: [8]
processor : 3
vendor_id : GenuineIntel
cpu family : 6
model : 26
model name : Intel(R) Xeon(R) CPU X5550 @ 2.67GHz
stepping : 5
cpu MHz : 2666.828
cache size : 8192 KB
physical id : 1
siblings : 4
core id : 1
cpu cores : 4
apicid : 18
fpu : yes
fpu_exception : yes
cpuid level : 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips : 5332.74
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: [8]
processor : 4
vendor_id : GenuineIntel
cpu family : 6
model : 26
model name : Intel(R) Xeon(R) CPU X5550 @ 2.67GHz
stepping : 5
cpu MHz : 2666.828
cache size : 8192 KB
physical id : 0
siblings : 4
core id : 2
cpu cores : 4
apicid : 4
fpu : yes
fpu_exception : yes
cpuid level : 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips : 5332.82
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: [8]
processor : 5
vendor_id : GenuineIntel
cpu family : 6
model : 26
model name : Intel(R) Xeon(R) CPU X5550 @ 2.67GHz
stepping : 5
cpu MHz : 2666.828
cache size : 8192 KB
physical id : 1
siblings : 4
core id : 2
cpu cores : 4
apicid : 20
fpu : yes
fpu_exception : yes
cpuid level : 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips : 5332.74
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: [8]
processor : 6
vendor_id : GenuineIntel
cpu family : 6
model : 26
model name : Intel(R) Xeon(R) CPU X5550 @ 2.67GHz
stepping : 5
cpu MHz : 2666.828
cache size : 8192 KB
physical id : 0
siblings : 4
core id : 3
cpu cores : 4
apicid : 6
fpu : yes
fpu_exception : yes
cpuid level : 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips : 5332.75
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: [8]
processor : 7
vendor_id : GenuineIntel
cpu family : 6
model : 26
model name : Intel(R) Xeon(R) CPU X5550 @ 2.67GHz
stepping : 5
cpu MHz : 2666.828
cache size : 8192 KB
physical id : 1
siblings : 4
core id : 3
cpu cores : 4
apicid : 22
fpu : yes
fpu_exception : yes
cpuid level : 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips : 5332.75
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: [8]
/proc/meminfo:
MemTotal: 32950928 kB
MemFree: 18105592 kB
Buffers: 689292 kB
Cached: 13742304 kB
SwapCached: 0 kB
Active: 5656708 kB
Inactive: 8838108 kB
HighTotal: 0 kB
HighFree: 0 kB
LowTotal: 32950928 kB
LowFree: 18105592 kB
SwapTotal: 67111528 kB
SwapFree: 67111528 kB
Dirty: 1600 kB
Writeback: 0 kB
AnonPages: 63324 kB
Mapped: 14720 kB
Slab: 283828 kB
PageTables: 5004 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
CommitLimit: 83586992 kB
Committed_AS: 187380 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
Hugepagesize: 2048 kB
Free space on /tmp at the end= 72276 MiB
End job on node125 at 2011-04-16 14:06:36