Trace number 3426972

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 0.089985 0.0900419

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v800-c3408-S1536861174-069.SATISFIABLE.cnf
MD5SUMb9f30e687453978167416852673e8ddb
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.031994
Satisfiable
(Un)Satisfiability was proved
Number of variables800
Number of clauses3408
Sum of the clauses size10224
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 33408
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.08	c 0 clauses are redundant and removed
0.00/0.08	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.08	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.08	c initial seed is 1437407351
0.00/0.08	c try=1 flip j=170095 walk=150137 seed 1437407368
0.00/0.08	c A solution is found
0.00/0.08	s SATISFIABLE
0.00/0.08	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 -750 751 -752 753 754 -755 -756 757 758 759 760 -761 -762 763 -764 765 766 767 768 -769 770 -771 -772 -773 -774 775 776 777 778 -779 780 781 782 -783 784 785 786 787 -788 -789 790 -791 -792 -793 -794 795 796 -797 798 799 -800 
0.00/0.09	v 0 
0.00/0.09	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-3426972-1306781792/watcher-3426972-1306781792 -o /tmp/evaluation-result-3426972-1306781792/solver-3426972-1306781792 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3426972-1306781792.cnf 1437403894 

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: 1.84 1.99 1.99 3/513 16550
/proc/meminfo: memFree=4053696/32950940 swapFree=67111364/67111528
[pid=16550] ppid=16548 vsize=1185980 CPUtime=0 cores=0,2,4,6
/proc/16550/stat : 16550 (sattime2011) R 16548 16550 15445 0 -1 4202496 446 0 0 0 0 0 0 0 21 0 1 0 868410009 1214443520 389 33554432000 4194304 4230460 140734586159200 18446744073709551615 4216969 0 0 4096 0 0 0 0 17 2 0 0 0
/proc/16550/statm: 296495 389 117 9 0 293652 0

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

Child status: 10
Real time (s): 0.0900419
CPU time (s): 0.089985
CPU user time (s): 0.086986
CPU system time (s): 0.002999
CPU usage (%): 99.9368
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.086986
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 450
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 0.007998 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node117 at 2011-05-30 20:56:32
IDJOB=3426972
IDBENCH=82944
IDSOLVER=1924
FILE ID=node117/3426972-1306781792
RUNJOBID= node117-1306781792-16531
PBS_JOBID= 13475007
Free space on /tmp= 58004 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v800-c3408-S1536861174-069.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3426972-1306781792/watcher-3426972-1306781792 -o /tmp/evaluation-result-3426972-1306781792/solver-3426972-1306781792 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3426972-1306781792.cnf 1437403894

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

MD5SUM BENCH= b9f30e687453978167416852673e8ddb
RANDOM SEED=1437403894

node117.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		: 2666.849
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	: 5333.69
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		: 2666.849
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		: 2666.849
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	: 5332.74
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		: 2666.849
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	: 5332.75
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		: 2666.849
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		: 2666.849
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		: 2666.849
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		: 2666.849
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	: 5267.44
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950940 kB
MemFree:       4054100 kB
Buffers:        303508 kB
Cached:       18108560 kB
SwapCached:          0 kB
Active:       20901280 kB
Inactive:      7297480 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950940 kB
LowFree:       4054100 kB
SwapTotal:    67111528 kB
SwapFree:     67111364 kB
Dirty:           15532 kB
Writeback:           0 kB
AnonPages:     9786388 kB
Mapped:          41980 kB
Slab:           570872 kB
PageTables:      57184 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586996 kB
Committed_AS: 150661328 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= 57992 MiB
End job on node117 at 2011-05-30 20:56:32