Trace number 3157379

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
shortsattime2011 2011-03-02SAT 1.56476 1.56678

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v750-c3195-S397702672-080.SATISFIABLE.cnf
MD5SUM0fc04a37bb65455aedf3737bd6551a47
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.220966
Satisfiable
(Un)Satisfiability was proved
Number of variables750
Number of clauses3195
Sum of the clauses size9585
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 33195
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

1.49/1.56	c 0 clauses are redundant and removed
1.49/1.56	c 0 vars are fixed and 0 clauses are removed after unit propagation
1.49/1.56	c 0 vars are fixed and 0 clauses are removed after lookahead
1.49/1.56	c initial seed is 617775333
1.49/1.56	c try=1 flip j=3363852 walk=2969887 seed 617775350
1.49/1.56	c A solution is found
1.49/1.56	s SATISFIABLE
1.49/1.56	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 -631 -632 633 -634 -635 636 -637 638 -639 -640 -641 642 643 -644 645 -646 647 648 -649 650 -651 652 -653 -654 -655 -656 -657 -658 -659 -660 661 662 -663 -664 665 -666 -667 -668 -669 -670 671 672 -673 674 675 -676 677 678 679 -680 681 682 683 684 685 -686 687 688 689 690 -691 -692 693 694 695 696 697 -698 699 700 -701 -702 -703 704 -705 -706 707 -708 -709 710 -711 -712 -713 714 715 716 -717 -718 719 720 -721 722 -723 -724 -725 726 727 728 729 730 731 -732 -733 -734 735 736 737 738 -739 -740 741 -742 743 -744 745 746 747 -748 -749 -750 
1.49/1.56	v 0 
1.49/1.56	c Done (mycputime is 1 seconds)

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 893)

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-3157379-1301685205/watcher-3157379-1301685205 -o /tmp/evaluation-result-3157379-1301685205/solver-3157379-1301685205 -C 2400 -W 1300 -M 7680 shortsattime2011 HOME/instance-3157379-1301685205.cnf 617768546 

running on 2 cores: 1,3

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: 1.58 2.14 2.93 3/190 4253
/proc/meminfo: memFree=22379916/32951124 swapFree=67111528/67111528
[pid=4253] ppid=4251 vsize=1185716 CPUtime=0 cores=1,3
/proc/4253/stat : 4253 (shortsattime201) R 4251 4253 3136 0 -1 4202496 324 0 0 0 0 0 0 0 23 0 1 0 280118426 1214173184 265 33554432000 4194304 4230460 140737352305344 18446744073709551615 4213303 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/4253/statm: 296429 266 115 9 0 293586 0

[startup+0.084602 s]
/proc/loadavg: 1.58 2.14 2.93 3/190 4253
/proc/meminfo: memFree=22379916/32951124 swapFree=67111528/67111528
[pid=4253] ppid=4251 vsize=1185980 CPUtime=0.08 cores=1,3
/proc/4253/stat : 4253 (shortsattime201) R 4251 4253 3136 0 -1 4202496 438 0 0 0 8 0 0 0 23 0 1 0 280118426 1214443520 378 33554432000 4194304 4230460 140737352305344 18446744073709551615 4221692 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/4253/statm: 296495 378 117 9 0 293652 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1185980

[startup+0.100611 s]
/proc/loadavg: 1.58 2.14 2.93 3/190 4253
/proc/meminfo: memFree=22379916/32951124 swapFree=67111528/67111528
[pid=4253] ppid=4251 vsize=1185980 CPUtime=0.09 cores=1,3
/proc/4253/stat : 4253 (shortsattime201) R 4251 4253 3136 0 -1 4202496 438 0 0 0 9 0 0 0 23 0 1 0 280118426 1214443520 378 33554432000 4194304 4230460 140737352305344 18446744073709551615 271549939936 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/4253/statm: 296495 378 117 9 0 293652 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1185980

[startup+0.300561 s]
/proc/loadavg: 1.58 2.14 2.93 3/190 4253
/proc/meminfo: memFree=22379916/32951124 swapFree=67111528/67111528
[pid=4253] ppid=4251 vsize=1185980 CPUtime=0.29 cores=1,3
/proc/4253/stat : 4253 (shortsattime201) R 4251 4253 3136 0 -1 4202496 438 0 0 0 29 0 0 0 25 0 1 0 280118426 1214443520 378 33554432000 4194304 4230460 140737352305344 18446744073709551615 4199728 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/4253/statm: 296495 378 117 9 0 293652 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1185980

[startup+0.700494 s]
/proc/loadavg: 1.58 2.14 2.93 3/190 4253
/proc/meminfo: memFree=22379916/32951124 swapFree=67111528/67111528
[pid=4253] ppid=4251 vsize=1185980 CPUtime=0.69 cores=1,3
/proc/4253/stat : 4253 (shortsattime201) R 4251 4253 3136 0 -1 4202496 438 0 0 0 69 0 0 0 25 0 1 0 280118426 1214443520 378 33554432000 4194304 4230460 140737352305344 18446744073709551615 4221276 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/4253/statm: 296495 378 117 9 0 293652 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1185980

[startup+1.50036 s]
/proc/loadavg: 1.78 2.17 2.94 5/194 4287
/proc/meminfo: memFree=22368228/32951124 swapFree=67111528/67111528
[pid=4253] ppid=4251 vsize=1185980 CPUtime=1.49 cores=1,3
/proc/4253/stat : 4253 (shortsattime201) R 4251 4253 3136 0 -1 4202496 438 0 0 0 149 0 0 0 25 0 1 0 280118426 1214443520 378 33554432000 4194304 4230460 140737352305344 18446744073709551615 4199893 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/4253/statm: 296495 378 117 9 0 293652 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1185980

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

Child status: 10
Real time (s): 1.56678
CPU time (s): 1.56476
CPU user time (s): 1.56476
CPU system time (s): 0
CPU usage (%): 99.8711
Max. virtual memory (cumulated for all children) (KiB): 1185980

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.56476
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= 442
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= 21

runsolver used 0.002999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node133 at 2011-04-01 21:13:25
IDJOB=3157379
IDBENCH=83094
IDSOLVER=1566
FILE ID=node133/3157379-1301685205
RUNJOBID= node133-1301685205-4219
PBS_JOBID= 12840564
Free space on /tmp= 71952 MiB

SOLVER NAME= shortsattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v750-c3195-S397702672-080.SATISFIABLE.cnf
COMMAND LINE= shortsattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3157379-1301685205/watcher-3157379-1301685205 -o /tmp/evaluation-result-3157379-1301685205/solver-3157379-1301685205 -C 2400 -W 1300 -M 7680  shortsattime2011 HOME/instance-3157379-1301685205.cnf 617768546

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= 0fc04a37bb65455aedf3737bd6551a47
RANDOM SEED=617768546

node133.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		: 2666.834
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	: 5333.66
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		: 2666.834
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	: 5332.75
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		: 2666.834
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	: 5332.82
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		: 2666.834
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	: 6741.12
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		: 2666.834
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	: 5332.74
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		: 2666.834
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	: 5332.83
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		: 2666.834
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	: 5332.74
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		: 2666.834
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:     32951124 kB
MemFree:      22379948 kB
Buffers:        339796 kB
Cached:        9917836 kB
SwapCached:          0 kB
Active:        7385300 kB
Inactive:      2937592 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      22379948 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           23348 kB
Writeback:           0 kB
AnonPages:       64748 kB
Mapped:          15016 kB
Slab:           185012 kB
PageTables:       5232 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  2594924 kB
VmallocTotal: 34359738367 kB
VmallocUsed:     33868 kB
VmallocChunk: 34359703231 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 71936 MiB
End job on node133 at 2011-04-01 21:13:27