Trace number 3427129

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 0.103983 0.104849

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v800-c3408-S91768321-029.SATISFIABLE.cnf
MD5SUMa8d280a0ad5a42e6946605bb6356e226
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.021996
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 

0.09/0.10	c 0 clauses are redundant and removed
0.09/0.10	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.09/0.10	c 0 vars are fixed and 0 clauses are removed after lookahead
0.09/0.10	c initial seed is 2096451807
0.09/0.10	c try=1 flip j=204996 walk=182007 seed 2096451824
0.09/0.10	c A solution is found
0.09/0.10	s SATISFIABLE
0.09/0.10	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 
0.09/0.10	v 0 
0.09/0.10	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-3427129-1306784709/watcher-3427129-1306784709 -o /tmp/evaluation-result-3427129-1306784709/solver-3427129-1306784709 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3427129-1306784709.cnf 2096448350 

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: 1.02 1.09 1.40 2/517 16405
/proc/meminfo: memFree=4330332/32950928 swapFree=35754236/67111528
[pid=16405] ppid=16403 vsize=1185980 CPUtime=0.01 cores=0,2,4,6
/proc/16405/stat : 16405 (sattime2011) R 16403 16405 15029 0 -1 4202496 445 0 0 0 1 0 0 0 25 0 1 0 790067586 1214443520 389 33554432000 4194304 4230460 140735527626464 18446744073709551615 4221604 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/16405/statm: 296495 389 117 9 0 293652 0

[startup+0.051914 s]
/proc/loadavg: 1.02 1.09 1.40 2/517 16405
/proc/meminfo: memFree=4330332/32950928 swapFree=35754236/67111528
[pid=16405] ppid=16403 vsize=1185980 CPUtime=0.05 cores=0,2,4,6
/proc/16405/stat : 16405 (sattime2011) R 16403 16405 15029 0 -1 4202496 445 0 0 0 5 0 0 0 25 0 1 0 790067586 1214443520 389 33554432000 4194304 4230460 140735527626464 18446744073709551615 4221554 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/16405/statm: 296495 389 117 9 0 293652 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1185980

[startup+0.100907 s]
/proc/loadavg: 1.02 1.09 1.40 2/517 16405
/proc/meminfo: memFree=4330332/32950928 swapFree=35754236/67111528
[pid=16405] ppid=16403 vsize=1185980 CPUtime=0.09 cores=0,2,4,6
/proc/16405/stat : 16405 (sattime2011) R 16403 16405 15029 0 -1 4202496 445 0 0 0 9 0 0 0 25 0 1 0 790067586 1214443520 389 33554432000 4194304 4230460 140735527626464 18446744073709551615 254500093441 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/16405/statm: 296495 389 117 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): 0.104849
CPU time (s): 0.103983
CPU user time (s): 0.101984
CPU system time (s): 0.001999
CPU usage (%): 99.174
Max. virtual memory (cumulated for all children) (KiB): 1185980

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.101984
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= 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 0.003999 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node149 at 2011-05-30 21:45:09
IDJOB=3427129
IDBENCH=83101
IDSOLVER=1924
FILE ID=node149/3427129-1306784709
RUNJOBID= node149-1306784709-16358
PBS_JOBID= 13474975
Free space on /tmp= 58516 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v800-c3408-S91768321-029.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3427129-1306784709/watcher-3427129-1306784709 -o /tmp/evaluation-result-3427129-1306784709/solver-3427129-1306784709 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3427129-1306784709.cnf 2096448350

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

MD5SUM BENCH= a8d280a0ad5a42e6946605bb6356e226
RANDOM SEED=2096448350

node149.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		: 2666.806
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	: 5333.61
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		: 2666.806
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		: 2666.806
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	: 5332.83
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		: 2666.806
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	: 5332.73
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		: 2666.806
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	: 5332.82
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		: 2666.806
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		: 2666.806
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	: 5332.82
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		: 2666.806
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:     32950928 kB
MemFree:       4330488 kB
Buffers:        278840 kB
Cached:       18703412 kB
SwapCached:      70432 kB
Active:       12153144 kB
Inactive:     15747312 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:       4330488 kB
SwapTotal:    67111528 kB
SwapFree:     35754236 kB
Dirty:           15576 kB
Writeback:           0 kB
AnonPages:     8871048 kB
Mapped:          17744 kB
Slab:           531840 kB
PageTables:     118008 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 174287812 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= 58508 MiB
End job on node149 at 2011-05-30 21:45:09