Trace number 3154437

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
sattime 2011-03-02SAT 0.061989 0.0624649

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 benchmark0.027994
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 

0.02/0.06	c 0 clauses are redundant and removed
0.02/0.06	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.02/0.06	c 0 vars are fixed and 0 clauses are removed after lookahead
0.02/0.06	c initial seed is 772677123
0.02/0.06	c try=1 flip j=110750 walk=98265 seed 772677140
0.02/0.06	c A solution is found
0.02/0.06	s SATISFIABLE
0.02/0.06	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 
0.02/0.06	v 0 
0.02/0.06	c Done (mycputime is 0 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-3154437-1301683869/watcher-3154437-1301683869 -o /tmp/evaluation-result-3154437-1301683869/solver-3154437-1301683869 -C 2400 -W 1300 -M 7680 sattime HOME/instance-3154437-1301683869.cnf 772677123 

running on 2 cores: 0,2

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: 4.07 4.04 4.00 4/193 4014
/proc/meminfo: memFree=22377172/32951124 swapFree=67111528/67111528
[pid=4014] ppid=4012 vsize=990668 CPUtime=0 cores=0,2
/proc/4014/stat : 4014 (sattime) R 4012 4014 3136 0 -1 4202496 411 0 0 0 0 0 0 0 25 0 1 0 279984810 1014444032 351 33554432000 4194304 4228548 140733421362528 18446744073709551615 4215695 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/4014/statm: 247667 353 116 9 0 244824 0

[startup+0.0296799 s]
/proc/loadavg: 4.07 4.04 4.00 4/193 4014
/proc/meminfo: memFree=22377172/32951124 swapFree=67111528/67111528
[pid=4014] ppid=4012 vsize=990668 CPUtime=0.02 cores=0,2
/proc/4014/stat : 4014 (sattime) R 4012 4014 3136 0 -1 4202496 433 0 0 0 2 0 0 0 25 0 1 0 279984810 1014444032 373 33554432000 4194304 4228548 140733421362528 18446744073709551615 4217167 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/4014/statm: 247667 373 116 9 0 244824 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 990668

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

[startup+0.0296799 s]
/proc/loadavg: 4.07 4.04 4.00 4/193 4014
/proc/meminfo: memFree=22377172/32951124 swapFree=67111528/67111528
[pid=4014] ppid=4012 vsize=990668 CPUtime=0.02 cores=0,2
/proc/4014/stat : 4014 (sattime) R 4012 4014 3136 0 -1 4202496 433 0 0 0 2 0 0 0 25 0 1 0 279984810 1014444032 373 33554432000 4194304 4228548 140733421362528 18446744073709551615 4217167 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/4014/statm: 247667 373 116 9 0 244824 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 990668

Child status: 10
Real time (s): 0.0624649
CPU time (s): 0.061989
CPU user time (s): 0.05999
CPU system time (s): 0.001999
CPU usage (%): 99.2381
Max. virtual memory (cumulated for all children) (KiB): 990668

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.05999
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 437
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= 0

runsolver used 0.000999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node133 at 2011-04-01 20:51:09
IDJOB=3154437
IDBENCH=82944
IDSOLVER=1564
FILE ID=node133/3154437-1301683869
RUNJOBID= node133-1301678141-3155
PBS_JOBID= 12840564
Free space on /tmp= 71944 MiB

SOLVER NAME= sattime 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v800-c3408-S1536861174-069.SATISFIABLE.cnf
COMMAND LINE= sattime BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3154437-1301683869/watcher-3154437-1301683869 -o /tmp/evaluation-result-3154437-1301683869/solver-3154437-1301683869 -C 2400 -W 1300 -M 7680  sattime HOME/instance-3154437-1301683869.cnf 772677123

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

MD5SUM BENCH= b9f30e687453978167416852673e8ddb
RANDOM SEED=772677123

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:      22377328 kB
Buffers:        339524 kB
Cached:        9917560 kB
SwapCached:          0 kB
Active:        7388692 kB
Inactive:      2937664 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      22377328 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            7816 kB
Writeback:           0 kB
AnonPages:       69140 kB
Mapped:          15324 kB
Slab:           184224 kB
PageTables:       5760 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  3210284 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 20:51:09