Trace number 3426788

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 0.060989 0.065317

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v800-c3408-S1831593686-090.SATISFIABLE.cnf
MD5SUM7dd850f670e1c9ea63e995ef24dddf5f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.032994
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 1647459985
0.02/0.06	c try=1 flip j=98241 walk=86453 seed 1647460002
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) 2010-2011 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-3426788-1306771779/watcher-3426788-1306771779 -o /tmp/evaluation-result-3426788-1306771779/solver-3426788-1306771779 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3426788-1306771779.cnf 1647456528 

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: 1.97 2.04 2.00 3/550 31872
/proc/meminfo: memFree=5123084/32951124 swapFree=53733252/67111528
[pid=31872] ppid=31870 vsize=1185980 CPUtime=0.01 cores=0,2,4,6
/proc/31872/stat : 31872 (sattime2011) R 31870 31872 31367 0 -1 4202496 445 0 0 0 1 0 0 0 25 0 1 0 788778312 1214443520 389 33554432000 4194304 4230460 140734706613088 18446744073709551615 4219843 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/31872/statm: 296495 389 117 9 0 293652 0

[startup+0.031113 s]
/proc/loadavg: 1.97 2.04 2.00 3/550 31872
/proc/meminfo: memFree=5123084/32951124 swapFree=53733252/67111528
[pid=31872] ppid=31870 vsize=1185980 CPUtime=0.02 cores=0,2,4,6
/proc/31872/stat : 31872 (sattime2011) R 31870 31872 31367 0 -1 4202496 445 0 0 0 2 0 0 0 25 0 1 0 788778312 1214443520 389 33554432000 4194304 4230460 140734706613088 18446744073709551615 4221183 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/31872/statm: 296495 389 117 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+0.031113 s]
/proc/loadavg: 1.97 2.04 2.00 3/550 31872
/proc/meminfo: memFree=5123084/32951124 swapFree=53733252/67111528
[pid=31872] ppid=31870 vsize=1185980 CPUtime=0.02 cores=0,2,4,6
/proc/31872/stat : 31872 (sattime2011) R 31870 31872 31367 0 -1 4202496 445 0 0 0 2 0 0 0 25 0 1 0 788778312 1214443520 389 33554432000 4194304 4230460 140734706613088 18446744073709551615 4221183 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/31872/statm: 296495 389 117 9 0 293652 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1185980

Child status: 10
Real time (s): 0.065317
CPU time (s): 0.060989
CPU user time (s): 0.05999
CPU system time (s): 0.000999
CPU usage (%): 93.3738
Max. virtual memory (cumulated for all children) (KiB): 1185980

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.05999
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 449
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 0.004999 second user time and 0.015997 second system time

The end

Launcher Data 

Begin job on node106 at 2011-05-30 18:09:39
IDJOB=3426788
IDBENCH=82760
IDSOLVER=1924
FILE ID=node106/3426788-1306771779
RUNJOBID= node106-1306761773-31385
PBS_JOBID= 13475018
Free space on /tmp= 57876 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v800-c3408-S1831593686-090.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3426788-1306771779/watcher-3426788-1306771779 -o /tmp/evaluation-result-3426788-1306771779/solver-3426788-1306771779 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3426788-1306771779.cnf 1647456528

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

MD5SUM BENCH= 7dd850f670e1c9ea63e995ef24dddf5f
RANDOM SEED=1647456528

node106.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	: 5226.20
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	: 5332.82
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	: 5332.74
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		: 2666.830
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:       5123240 kB
Buffers:        348312 kB
Cached:       21699744 kB
SwapCached:      12092 kB
Active:       18073344 kB
Inactive:      9027068 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:       5123240 kB
SwapTotal:    67111528 kB
SwapFree:     53733252 kB
Dirty:            8164 kB
Writeback:           0 kB
AnonPages:     5048712 kB
Mapped:          26260 kB
Slab:           578364 kB
PageTables:      78188 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 168727124 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= 57868 MiB
End job on node106 at 2011-05-30 18:09:39