Trace number 3426912

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
sattime2011 2011-03-02SAT 0.089986 0.0904741

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v750-c3195-S576842028-023.SATISFIABLE.cnf
MD5SUMa7a611663d2f029393d16aacd4e48364
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.05499
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 

0.02/0.09	c 0 clauses are redundant and removed
0.02/0.09	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.02/0.09	c 0 vars are fixed and 0 clauses are removed after lookahead
0.02/0.09	c initial seed is 1163417025
0.02/0.09	c try=1 flip j=170295 walk=145374 seed 1163417042
0.02/0.09	c A solution is found
0.02/0.09	s SATISFIABLE
0.02/0.09	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 
0.02/0.09	v 0 
0.02/0.09	c Done (mycputime is 0 seconds)

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 961)

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-3426912-1306778799/watcher-3426912-1306778799 -o /tmp/evaluation-result-3426912-1306778799/solver-3426912-1306778799 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3426912-1306778799.cnf 1163413568 

running on 4 cores: 0,2,4,6

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): 5100 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.06 1.03 1.10 2/530 23708
/proc/meminfo: memFree=4913524/32951124 swapFree=50328316/67111528
[pid=23708] ppid=23706 vsize=1185980 CPUtime=0.01 cores=0,2,4,6
/proc/23708/stat : 23708 (sattime2011) R 23706 23708 22856 0 -1 4202496 435 0 0 0 1 0 0 0 22 0 1 0 770296190 1214443520 378 33554432000 4194304 4230460 140735686347168 18446744073709551615 4200547 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/23708/statm: 296495 378 117 9 0 293652 0

[startup+0.0221499 s]
/proc/loadavg: 1.06 1.03 1.10 2/530 23708
/proc/meminfo: memFree=4913524/32951124 swapFree=50328316/67111528
[pid=23708] ppid=23706 vsize=1185980 CPUtime=0.02 cores=0,2,4,6
/proc/23708/stat : 23708 (sattime2011) R 23706 23708 22856 0 -1 4202496 435 0 0 0 2 0 0 0 22 0 1 0 770296190 1214443520 378 33554432000 4194304 4230460 140735686347168 18446744073709551615 4199823 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/23708/statm: 296495 378 117 9 0 293652 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1185980

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

[startup+0.0221499 s]
/proc/loadavg: 1.06 1.03 1.10 2/530 23708
/proc/meminfo: memFree=4913524/32951124 swapFree=50328316/67111528
[pid=23708] ppid=23706 vsize=1185980 CPUtime=0.02 cores=0,2,4,6
/proc/23708/stat : 23708 (sattime2011) R 23706 23708 22856 0 -1 4202496 435 0 0 0 2 0 0 0 22 0 1 0 770296190 1214443520 378 33554432000 4194304 4230460 140735686347168 18446744073709551615 4199823 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/23708/statm: 296495 378 117 9 0 293652 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1185980

Child status: 10
Real time (s): 0.0904741
CPU time (s): 0.089986
CPU user time (s): 0.089986
CPU system time (s): 0
CPU usage (%): 99.4605
Max. virtual memory (cumulated for all children) (KiB): 1185980

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.089986
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= 439
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= 1

runsolver used 0.010998 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node146 at 2011-05-30 20:06:39
IDJOB=3426912
IDBENCH=82884
IDSOLVER=1924
FILE ID=node146/3426912-1306778799
RUNJOBID= node146-1306778799-23693
PBS_JOBID= 13474978
Free space on /tmp= 59928 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v750-c3195-S576842028-023.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3426912-1306778799/watcher-3426912-1306778799 -o /tmp/evaluation-result-3426912-1306778799/solver-3426912-1306778799 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3426912-1306778799.cnf 1163413568

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= a7a611663d2f029393d16aacd4e48364
RANDOM SEED=1163413568

node146.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		: 2666.830
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		: 2666.830
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		: 2666.830
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	: 5332.75
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		: 2666.830
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	: 5332.86
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		: 2666.830
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	: 5332.75
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		: 2666.830
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	: 5332.75
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		: 2666.830
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		: 2666.830
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:       4913828 kB
Buffers:        261188 kB
Cached:       16662804 kB
SwapCached:       9580 kB
Active:       16455440 kB
Inactive:     10907860 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:       4913828 kB
SwapTotal:    67111528 kB
SwapFree:     50328316 kB
Dirty:           15524 kB
Writeback:           0 kB
AnonPages:    10436944 kB
Mapped:          27616 kB
Slab:           505368 kB
PageTables:      98252 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 160668952 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= 59912 MiB
End job on node146 at 2011-05-30 20:06:39