Trace number 310591

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, and are wall clock time (not CPU 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
CMUSAT 2007-02-08SAT 0.544916 0.547577

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S1788789488-19-SAT.cnf
MD5SUM8dd20c2b2815f1615e92da9f7d25dd5d
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 variables630
Number of clauses2280
Sum of the clauses size6612
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2228
Number of clauses of size 32052
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	c Pre-processing provided 0 assignments
0.00/0.00	c |  Number of variables:  630                                                  |
0.00/0.00	c |  Number of clauses:    2280                                                 |
0.51/0.54	c |  Parsing time:         0.00         sec                                       |
0.51/0.54	c #varS 630 #clauseS 2181
0.51/0.54	c REMAP internally 1
0.51/0.54	c After remapping new number of variables: 574
0.51/0.54	c DBreduced=0 GV=101[0]  GL=2282[ 2181,101] Prune=330 decisions=229 restart=0 est=0.000304042 DB Impl=10980[0]  
0.51/0.54	c DBreduced=0 GV=151[0]  GL=2332[ 2181,151] Prune=474 decisions=323 restart=1 est=0.00152021 DB Impl=15836[0]  
0.51/0.54	c DBreduced=0 GV=226[0]  GL=2407[ 2181,226] Prune=687 decisions=461 restart=2 est=0.000304574 DB Impl=23646[0]  
0.51/0.54	c DBreduced=0 GV=339[0]  GL=2520[ 2181,339] Prune=964 decisions=625 restart=3 est=0.000607555 DB Impl=34144[0]  
0.51/0.54	c DBreduced=0 GV=507[0]  GL=2688[ 2181,507] Prune=1392 decisions=885 restart=4 est=0.000304573 DB Impl=52931[0]  
0.51/0.54	c DBreduced=0 GV=760[0]  GL=2941[ 2181,760] Prune=2036 decisions=1276 restart=5 est=0.000304043 DB Impl=80067[0]  
0.51/0.54	c DBreduced=0 GV=1141[0]  GL=3322[ 2181,1141] Prune=2946 decisions=1805 restart=6 est=0.000609669 DB Impl=117342[0]  
0.51/0.54	c DBreduced=2 GV=1709[0]  GL=3712[ 2181,1531] Prune=4293 decisions=2584 restart=7 est=0.00121669 DB Impl=174747[0]  
0.51/0.54	c DBreduced=3 GV=2564[0]  GL=3821[ 2181,1640] Prune=6241 decisions=3677 restart=8 est=0.000307215 DB Impl=265300[0]  
0.51/0.54	c DBreduced=5 GV=3846[0]  GL=3646[ 2181,1465] Prune=9079 decisions=5233 restart=9 est=0.000304043 DB Impl=398883[0]  
0.51/0.54	c DBreduced=7 GV=5767[0]  GL=3831[ 2181,1650] Prune=13422 decisions=7655 restart=10 est=0.000607561 DB Impl=606321[0]  
0.51/0.54	c After partial model completion 574 assignments
0.51/0.54	c REMAP internally 0
0.51/0.54	c Number of variables:  630
0.51/0.54	c Number of clauses:    2280
0.51/0.54	c #Total time (in seconds): 0.542917
0.51/0.54	c #Memory used (in MB): 2.83203
0.51/0.54	c 
0.51/0.54	s SATISFIABLE
0.51/0.54	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 -381 -382 -383 384 -385 -386 387 388 -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 -430 431 432 433 434 -435 436 437 438 -439 440 441 -442 443 -444 -445 446 -447 448 -449 -450 451 452 453 -454 -455 -456 457 -458 -459 460 461 -462 463 464 -465 -466 -467 -468 469 -470 -471 472 -473 -474 -475 476 -477 478 479 -480 481 482 -483 484 485 -486 -487 -488 489 490 -491 -492 -493 -494 495 -496 -497 498 499 500 -501 502 503 -504 -505 506 -507 -508 -509 510 511 -512 -513 -514 -515 516 517 518 -519 520 521 522 -523 524 525 -526 -527 528 529 530 531 532 533 534 -535 536 537 538 539 540 541 542 -543 -544 -545 546 547 548 549 550 551 -552 -553 554 555 -556 -557 -558 -559 -560 -561 562 -563 -564 565 -566 -567 568 -569 -570 571 572 573 574 -575 576 -577 -578 -579 -580 -581 582 -583 -584 585 586 -587 588 589 590 -591 592 -593 -594 595 -596 -597 598 -599 -600 -601 602 603 604 605 606 -607 -608 -609 610 -611 612 613 -614 -615 -616 -617 -618 619 -620 621 622 -623 624 -625 626 627 -628 -629 630 0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node2/watcher-310591-1172560344 -o ROOT/results/node2/solver-310591-1172560344 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310591-1172560344/cmusat /tmp/evaluation/310591-1172560344/instance-310591-1172560344.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 0.72 0.93 0.98 3/77 28648
/proc/meminfo: memFree=1670432/2055920 swapFree=4192812/4192956
[pid=28648] ppid=28646 vsize=2448 CPUtime=0
/proc/28648/stat : 28648 (cmusat) R 28646 28648 27407 0 -1 4194304 211 0 0 0 0 0 0 0 18 0 1 0 275989494 2506752 194 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 135095640 0 0 4096 35 0 0 0 17 1 0 0
/proc/28648/statm: 612 195 109 243 0 366 0

[startup+0.107809 s]
/proc/loadavg: 0.72 0.93 0.98 3/77 28648
/proc/meminfo: memFree=1670432/2055920 swapFree=4192812/4192956
[pid=28648] ppid=28646 vsize=2712 CPUtime=0.1
/proc/28648/stat : 28648 (cmusat) R 28646 28648 27407 0 -1 4194304 295 0 0 0 10 0 0 0 18 0 1 0 275989494 2777088 278 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134589563 0 0 4096 35 0 0 0 17 1 0 0
/proc/28648/statm: 678 278 118 243 0 432 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2712

[startup+0.51585 s]
/proc/loadavg: 0.72 0.93 0.98 3/77 28648
/proc/meminfo: memFree=1670432/2055920 swapFree=4192812/4192956
[pid=28648] ppid=28646 vsize=3348 CPUtime=0.51
/proc/28648/stat : 28648 (cmusat) R 28646 28648 27407 0 -1 4194304 443 0 0 0 51 0 0 0 22 0 1 0 275989494 3428352 426 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134589690 0 0 4096 35 0 0 0 17 1 0 0
/proc/28648/statm: 837 426 118 243 0 591 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 3348

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

[startup+0.51585 s]
/proc/loadavg: 0.72 0.93 0.98 3/77 28648
/proc/meminfo: memFree=1670432/2055920 swapFree=4192812/4192956
[pid=28648] ppid=28646 vsize=3348 CPUtime=0.51
/proc/28648/stat : 28648 (cmusat) R 28646 28648 27407 0 -1 4194304 443 0 0 0 51 0 0 0 22 0 1 0 275989494 3428352 426 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134589690 0 0 4096 35 0 0 0 17 1 0 0
/proc/28648/statm: 837 426 118 243 0 591 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 3348

Child status: 10
Real time (s): 0.547577
CPU time (s): 0.544916
CPU user time (s): 0.542917
CPU system time (s): 0.001999
CPU usage (%): 99.514
Max. virtual memory (cumulated for all children) (KiB): 3348

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.542917
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= 455
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= 8
involuntary context switches= 12

runsolver used 0.002999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node2 on Tue Feb 27 07:12:25 UTC 2007

IDJOB= 310591
IDBENCH= 20291
IDSOLVER= 121
FILE ID= node2/310591-1172560344

PBS_JOBID= 3971655

Free space on /tmp= 66556 MiB

SOLVER NAME= CMUSAT 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S1788789488-19-SAT.cnf
COMMAND LINE= /tmp/evaluation/310591-1172560344/cmusat /tmp/evaluation/310591-1172560344/instance-310591-1172560344.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node2/watcher-310591-1172560344 -o ROOT/results/node2/solver-310591-1172560344 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310591-1172560344/cmusat /tmp/evaluation/310591-1172560344/instance-310591-1172560344.cnf            

META MD5SUM SOLVER= af990fb12f8926fdd756b397adb3b5cf
MD5SUM BENCH=  8dd20c2b2815f1615e92da9f7d25dd5d

RANDOM SEED= 544145985

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node2.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.247
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		: 3000.247
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:       1670904 kB
Buffers:         47756 kB
Cached:         207176 kB
SwapCached:          0 kB
Active:         251512 kB
Inactive:        63320 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1670904 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2700 kB
Writeback:           0 kB
Mapped:          78784 kB
Slab:            55708 kB
Committed_AS:  1304192 kB
PageTables:       1812 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= 66556 MiB

End job on node2 on Tue Feb 27 07:12:26 UTC 2007