Trace number 310577

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
MXC 2007-02-08SAT 8.21875 8.23558

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)

8.19/8.23	c MXC attempting /tmp/evaluation/310577-1172560323/instance-310577-1172560323.cnf
8.19/8.23	c 0 assignments made, starting to guess now
8.19/8.23	c ===================================[MXC]=====================================
8.19/8.23	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
8.19/8.23	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
8.19/8.23	c =============================================================================
8.19/8.23	c |         0 |    2052     6156 |    1000       0       0     nan |  0.000 % |
8.19/8.23	c |       100 |    2052     6156 |    1100     100    2187    21.9 |  0.000 % |
8.19/8.23	c |       250 |    2052     6156 |    1210     249    4823    19.4 |  0.000 % |
8.19/8.23	c |       475 |    2052     6156 |    1331     474    9586    20.2 |  0.000 % |
8.19/8.23	c |       814 |    2052     6156 |    1464     810   16739    20.7 |  0.000 % |
8.19/8.23	c |      1320 |    2052     6156 |    1610    1316   26696    20.3 |  0.000 % |
8.19/8.23	c |      2079 |    2052     6156 |    1771    1269   26247    20.7 |  0.000 % |
8.19/8.23	c |      3218 |    2052     6156 |    1948    1519   31282    20.6 |  0.000 % |
8.19/8.23	c |      4927 |    2052     6156 |    2143    1281   23913    18.7 |  0.000 % |
8.19/8.23	c |      7490 |    2052     6156 |    2357    1703   33681    19.8 |  0.000 % |
8.19/8.23	c |     11335 |    2052     6156 |    2593    2013   37969    18.9 |  0.000 % |
8.19/8.23	c |     17101 |    2052     6156 |    2853    2590   50267    19.4 |  0.000 % |
8.19/8.23	c |     25750 |    2052     6156 |    3138    2692   54088    20.1 |  0.000 % |
8.19/8.23	c |     38724 |    2052     6156 |    3452    3112   66940    21.5 |  0.000 % |
8.19/8.23	c |     58187 |    2052     6156 |    3797    1873   34406    18.4 |  0.000 % |
8.19/8.23	c |     87379 |    2052     6156 |    4177    2610   49661    19.0 |  0.000 % |
8.19/8.23	c 8.210s elapsed
8.19/8.23	c restarts: 15
8.19/8.23	c decisions: 149090
8.19/8.23	c propagations: 11754509
8.19/8.23	c conflicts: 121526
8.19/8.23	s SATISFIABLE
8.19/8.23	v -468 -57 -630 -462 364 -287 -156 -231 582 -390 98 62 341 -472 -396 -269 432 -553 -623 -376 625 -41 19 -122 612 -49 -512 176 174 -398 -199 554 -88 568 167 621 -150 16 -35 -454 277 -535 -628 -519 -386 202 222 302 -18 236 548 -31 529 -473 306 597 171 -99 -45 -274 149 170 -465 298 359 463 -50 -84 411 -8 -487 456 142 -83 -77 -118 -351 546 218 291 -227 -39 426 240 -430 194 -513 626 460 521 178 -556 -332 -90 151 -246 117 502 -520 620 -15 60 -224 555 169 -322 -67 -399 -3 -134 -237 40 -316 -228 301 -313 -242 36 -309 -82 -160 -225 576 43 497 -528 132 234 431 138 569 147 87 -445 61 562 326 565 -337 -459 360 238 203 166 -28 -545 -451 -258 381 324 -71 -478 26 259 -333 328 230 -352 347 -100 -404 348 -496 183 1 -248 293 629 205 -532 440 144 216 -448 -559 375 275 219 110 -92 349 538 -47 -145 -567 -239 446 -509 190 -297 -13 -135 -505 595 53 187 -491 173 4 586 367 413 73 213 -570 -260 -6 -63 -480 204 115 -69 -511 -489 -619 252 596 265 385 370 -292 175 -477 -46 362 518 -593 494 29 510 20 -235 -583 466 -343 295 148 -547 114 -591 -366 524 -501 572 -402 288 -315 -486 52 -244 377 104 133 -587 537 -249 414 303 -503 -508 -105 -345 -23 -143 589 -112 -266 543 -276 -32 429 -91 -482 42 245 -281 433 72 -233 -321 22 76 212 -453 -257 307 189 461 -48 412 51 141 -403 416 124 299 -68 136 181 93 481 422 -594 -159 -123 -10 182 -566 -137 -130 379 -210 24 285 -323 -580 -610 -101 273 -458 192 464 490 -423 197 581 -282 14 12 94 -9 357 -33 372 428 -121 420 -371 232 -154 -11 -407 289 325 387 54 163 -475 541 415 600 -271 34 -129 294 -493 335 -514 -435 -577 384 592 -25 -447 536 -467 525 -220 201 255 492 471 111 -391 -198 622 -247 108 64 -256 -358 -196 -251 -208 -557 517 550 -409 -534 574 -617 598 -128 146 -211 180 -474 305 485 254 418 -308 -361 -498 -374 -263 103 406 -283 -65 614 191 400 -320 -214 339 -350 551 -296 -215 243 -484 515 516 542 338 575 2 -434 -195 -392 443 561 -226 120 -56 -383 58 613 -499 21 365 -106 155 -267 334 -627 -97 -616 -125 140 476 342 -405 -206 327 -221 217 70 441 -66 -527 -356 571 184 -579 -419 17 438 -55 -469 185 -417 355 611 -615 304 -544 -500 -250 389 -157 531 421 -607 -353 -85 624 363 -526 -102 284 261 330 279 603 319 479 290 393 268 -86 -495 -179 -168 -354 317 504 -397 -507 -311 -450 158 -89 -427 127 229 -96 -584 -604 37 -44 -314 -605 558 -449 -107 153 -437 -38 455 563 340 599 74 -207 382 -530 331 -590 -81 602 -410 -470 -522 -573 272 539 408 -395 606 -394 -601 -209 -585 401 -442 -223 -564 -131 -119 436 -373 7 483 262 -59 -79 -162 488 164 188 -300 200 444 -278 -457 -344 452 -310 -177 -506 -116 -75 -425 -161 -286 80 -318 378 -609 -241 -336 -312 -27 -549 -30 -95 -369 -165 -126 -264 -172 560 -380 -552 -193 -540 -533 -152 -388 -523 -368 -424 -618 -329 -253 -113 -280 -588 -139 -186 -109 -78 -346 608 -5 -439 -270 -578 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/node41/watcher-310577-1172560323 -o ROOT/results/node41/solver-310577-1172560323 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310577-1172560323/mxc /tmp/evaluation/310577-1172560323/instance-310577-1172560323.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: 1.03 1.03 1.01 3/64 17211
/proc/meminfo: memFree=1826656/2055920 swapFree=4172320/4192956
[pid=17211] ppid=17209 vsize=1064 CPUtime=0
/proc/17211/stat : 17211 (mxc) R 17209 17211 16394 0 -1 4194304 135 0 0 0 0 0 0 0 18 0 1 0 275988236 1089536 119 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519229 0 0 4096 0 0 0 0 17 1 0 0
/proc/17211/statm: 266 119 57 122 0 140 0

[startup+0.106867 s]
/proc/loadavg: 1.03 1.03 1.01 3/64 17211
/proc/meminfo: memFree=1826656/2055920 swapFree=4172320/4192956
[pid=17211] ppid=17209 vsize=1204 CPUtime=0.1
/proc/17211/stat : 17211 (mxc) R 17209 17211 16394 0 -1 4194304 194 0 0 0 10 0 0 0 18 0 1 0 275988236 1232896 176 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134529763 0 0 4096 0 0 0 0 17 1 0 0
/proc/17211/statm: 301 176 67 122 0 175 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1204

[startup+0.514901 s]
/proc/loadavg: 1.03 1.03 1.01 3/64 17211
/proc/meminfo: memFree=1826656/2055920 swapFree=4172320/4192956
[pid=17211] ppid=17209 vsize=1468 CPUtime=0.51
/proc/17211/stat : 17211 (mxc) R 17209 17211 16394 0 -1 4194304 235 0 0 0 51 0 0 0 21 0 1 0 275988236 1503232 217 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134531230 0 0 4096 0 0 0 0 17 1 0 0
/proc/17211/statm: 367 217 67 122 0 241 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 1468

[startup+1.33497 s]
/proc/loadavg: 1.03 1.03 1.01 2/65 17212
/proc/meminfo: memFree=1825944/2055920 swapFree=4172320/4192956
[pid=17211] ppid=17209 vsize=1600 CPUtime=1.33
/proc/17211/stat : 17211 (mxc) R 17209 17211 16394 0 -1 4194304 272 0 0 0 133 0 0 0 25 0 1 0 275988236 1638400 254 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/17211/statm: 400 254 67 122 0 274 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 1600

[startup+2.97111 s]
/proc/loadavg: 1.03 1.03 1.01 2/65 17212
/proc/meminfo: memFree=1825624/2055920 swapFree=4172320/4192956
[pid=17211] ppid=17209 vsize=1720 CPUtime=2.96
/proc/17211/stat : 17211 (mxc) R 17209 17211 16394 0 -1 4194304 316 0 0 0 296 0 0 0 25 0 1 0 275988236 1761280 298 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134530609 0 0 4096 0 0 0 0 17 1 0 0
/proc/17211/statm: 430 298 67 122 0 304 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 1720

[startup+6.2524 s]
/proc/loadavg: 1.03 1.03 1.01 2/65 17212
/proc/meminfo: memFree=1825432/2055920 swapFree=4172320/4192956
[pid=17211] ppid=17209 vsize=1976 CPUtime=6.24
/proc/17211/stat : 17211 (mxc) R 17209 17211 16394 0 -1 4194304 361 0 0 0 624 0 0 0 25 0 1 0 275988236 2023424 343 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519143 0 0 4096 0 0 0 0 17 1 0 0
/proc/17211/statm: 494 343 67 122 0 368 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 1976

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

[startup+6.55843 s]
/proc/loadavg: 1.03 1.03 1.01 2/65 17212
/proc/meminfo: memFree=1825432/2055920 swapFree=4172320/4192956
[pid=17211] ppid=17209 vsize=1976 CPUtime=6.55
/proc/17211/stat : 17211 (mxc) R 17209 17211 16394 0 -1 4194304 362 0 0 0 655 0 0 0 25 0 1 0 275988236 2023424 344 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519981 0 0 4096 0 0 0 0 17 1 0 0
/proc/17211/statm: 494 344 67 122 0 368 0
Current children cumulated CPU time (s) 6.55
Current children cumulated vsize (KiB) 1976

[startup+7.3785 s]
/proc/loadavg: 1.03 1.03 1.01 2/65 17212
/proc/meminfo: memFree=1825368/2055920 swapFree=4172320/4192956
[pid=17211] ppid=17209 vsize=1976 CPUtime=7.37
/proc/17211/stat : 17211 (mxc) R 17209 17211 16394 0 -1 4194304 369 0 0 0 737 0 0 0 25 0 1 0 275988236 2023424 351 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/17211/statm: 494 351 67 122 0 368 0
Current children cumulated CPU time (s) 7.37
Current children cumulated vsize (KiB) 1976

[startup+7.78654 s]
/proc/loadavg: 1.03 1.03 1.01 2/65 17212
/proc/meminfo: memFree=1825368/2055920 swapFree=4172320/4192956
[pid=17211] ppid=17209 vsize=1976 CPUtime=7.78
/proc/17211/stat : 17211 (mxc) R 17209 17211 16394 0 -1 4194304 373 0 0 0 778 0 0 0 25 0 1 0 275988236 2023424 355 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134530169 0 0 4096 0 0 0 0 17 1 0 0
/proc/17211/statm: 494 355 67 122 0 368 0
Current children cumulated CPU time (s) 7.78
Current children cumulated vsize (KiB) 1976

[startup+8.19857 s]
/proc/loadavg: 1.03 1.03 1.01 2/65 17212
/proc/meminfo: memFree=1825304/2055920 swapFree=4172320/4192956
[pid=17211] ppid=17209 vsize=1976 CPUtime=8.19
/proc/17211/stat : 17211 (mxc) R 17209 17211 16394 0 -1 4194304 376 0 0 0 819 0 0 0 25 0 1 0 275988236 2023424 358 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/17211/statm: 494 358 67 122 0 368 0
Current children cumulated CPU time (s) 8.19
Current children cumulated vsize (KiB) 1976

Child status: 10
Real time (s): 8.23558
CPU time (s): 8.21875
CPU user time (s): 8.21775
CPU system time (s): 0.000999
CPU usage (%): 99.7956
Max. virtual memory (cumulated for all children) (KiB): 1976

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.21775
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= 378
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= 9
involuntary context switches= 4

runsolver used 0.002999 second user time and 0.027995 second system time

The end

Launcher Data (download as text)

Begin job on node41 on Tue Feb 27 07:12:03 UTC 2007

IDJOB= 310577
IDBENCH= 20291
IDSOLVER= 107
FILE ID= node41/310577-1172560323

PBS_JOBID= 3971884

Free space on /tmp= 66560 MiB

SOLVER NAME= MXC 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/310577-1172560323/mxc /tmp/evaluation/310577-1172560323/instance-310577-1172560323.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node41/watcher-310577-1172560323 -o ROOT/results/node41/solver-310577-1172560323 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310577-1172560323/mxc /tmp/evaluation/310577-1172560323/instance-310577-1172560323.cnf            

META MD5SUM SOLVER= fd459248d3e92e664505cc2f0f683bf4
MD5SUM BENCH=  8dd20c2b2815f1615e92da9f7d25dd5d

RANDOM SEED= 466912624

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node41.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		: 3000.231
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		: 3000.231
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:       1827064 kB
Buffers:         31244 kB
Cached:         136852 kB
SwapCached:      14892 kB
Active:         103536 kB
Inactive:        86248 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1827064 kB
SwapTotal:     4192956 kB
SwapFree:      4172320 kB
Dirty:             644 kB
Writeback:           0 kB
Mapped:          15728 kB
Slab:            24980 kB
Committed_AS:   547696 kB
PageTables:       1476 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= 66560 MiB

End job on node41 on Tue Feb 27 07:12:11 UTC 2007