Trace number 3426835

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 0.179972 0.180785

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v750-c3195-S973075635-083.SATISFIABLE.cnf
MD5SUM72699a729b1b1ff68f424bd0209fc31b
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.052991
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 

0.09/0.18	c 0 clauses are redundant and removed
0.09/0.18	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.09/0.18	c 0 vars are fixed and 0 clauses are removed after lookahead
0.09/0.18	c initial seed is 2007176509
0.09/0.18	c try=1 flip j=369519 walk=324306 seed 2007176526
0.09/0.18	c A solution is found
0.09/0.18	s SATISFIABLE
0.09/0.18	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 
0.09/0.18	v 0 
0.09/0.18	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-3426835-1306773964/watcher-3426835-1306773964 -o /tmp/evaluation-result-3426835-1306773964/solver-3426835-1306773964 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3426835-1306773964.cnf 2007173052 

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: 2.00 2.01 2.00 2/373 21481
/proc/meminfo: memFree=7649804/32951124 swapFree=37160472/67111528
[pid=21481] ppid=21479 vsize=1185980 CPUtime=0 cores=0,2,4,6
/proc/21481/stat : 21481 (sattime2011) R 21479 21481 20754 0 -1 4202496 436 0 0 0 0 0 0 0 25 0 1 0 788996901 1214443520 379 33554432000 4194304 4230460 140735460224480 18446744073709551615 230808567308 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/21481/statm: 296495 379 117 9 0 293652 0

[startup+0.077789 s]
/proc/loadavg: 2.00 2.01 2.00 2/373 21481
/proc/meminfo: memFree=7649804/32951124 swapFree=37160472/67111528
[pid=21481] ppid=21479 vsize=1185980 CPUtime=0.07 cores=0,2,4,6
/proc/21481/stat : 21481 (sattime2011) R 21479 21481 20754 0 -1 4202496 436 0 0 0 7 0 0 0 25 0 1 0 788996901 1214443520 379 33554432000 4194304 4230460 140735460224480 18446744073709551615 4199875 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/21481/statm: 296495 379 117 9 0 293652 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1185980

[startup+0.100799 s]
/proc/loadavg: 2.00 2.01 2.00 2/373 21481
/proc/meminfo: memFree=7649804/32951124 swapFree=37160472/67111528
[pid=21481] ppid=21479 vsize=1185980 CPUtime=0.09 cores=0,2,4,6
/proc/21481/stat : 21481 (sattime2011) R 21479 21481 20754 0 -1 4202496 436 0 0 0 9 0 0 0 25 0 1 0 788996901 1214443520 379 33554432000 4194304 4230460 140735460224480 18446744073709551615 4219807 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/21481/statm: 296495 379 117 9 0 293652 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1185980

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

Child status: 10
Real time (s): 0.180785
CPU time (s): 0.179972
CPU user time (s): 0.176973
CPU system time (s): 0.002999
CPU usage (%): 99.5502
Max. virtual memory (cumulated for all children) (KiB): 1185980

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.176973
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= 440
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 0.002999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node104 at 2011-05-30 18:46:05
IDJOB=3426835
IDBENCH=82807
IDSOLVER=1924
FILE ID=node104/3426835-1306773964
RUNJOBID= node104-1306761774-20772
PBS_JOBID= 13475020
Free space on /tmp= 59176 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v750-c3195-S973075635-083.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3426835-1306773964/watcher-3426835-1306773964 -o /tmp/evaluation-result-3426835-1306773964/solver-3426835-1306773964 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3426835-1306773964.cnf 2007173052

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

MD5SUM BENCH= 72699a729b1b1ff68f424bd0209fc31b
RANDOM SEED=2007173052

node104.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		: 2666.855
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	: 5333.71
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		: 2666.855
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	: 5332.83
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		: 2666.855
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	: 5332.67
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		: 2666.855
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	: 5332.80
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		: 2666.855
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	: 5293.18
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		: 2666.855
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		: 2666.855
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		: 2666.855
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	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:       7649968 kB
Buffers:        386076 kB
Cached:       22432480 kB
SwapCached:     152248 kB
Active:       18201064 kB
Inactive:      6395500 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:       7649968 kB
SwapTotal:    67111528 kB
SwapFree:     37160472 kB
Dirty:            7808 kB
Writeback:           4 kB
AnonPages:     1638852 kB
Mapped:          11152 kB
Slab:           550444 kB
PageTables:      89032 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 88909684 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= 59168 MiB
End job on node104 at 2011-05-30 18:46:05