Trace number 3427092

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 0.109983 0.112019

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v800-c3408-S846876765-035.SATISFIABLE.cnf
MD5SUM0d5f032713ed63748b72ef45ba69a269
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.030994
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 

0.09/0.11	c 0 clauses are redundant and removed
0.09/0.11	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.09/0.11	c 0 vars are fixed and 0 clauses are removed after lookahead
0.09/0.11	c initial seed is 202361119
0.09/0.11	c try=1 flip j=196078 walk=172901 seed 202361136
0.09/0.11	c A solution is found
0.09/0.11	s SATISFIABLE
0.09/0.11	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 
0.09/0.11	v 0 
0.09/0.11	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-3427092-1306784108/watcher-3427092-1306784108 -o /tmp/evaluation-result-3427092-1306784108/solver-3427092-1306784108 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3427092-1306784108.cnf 202357662 

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: 2.32 2.07 2.02 4/574 29786
/proc/meminfo: memFree=4209532/32951124 swapFree=61146300/67111528
[pid=29786] ppid=29783 vsize=1185980 CPUtime=0.01 cores=0,2,4,6
/proc/29786/stat : 29786 (sattime2011) R 29783 29786 28662 0 -1 4202496 446 0 0 0 1 0 0 0 25 0 1 0 790008502 1214443520 389 33554432000 4194304 4230460 140733284300480 18446744073709551615 4220328 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/29786/statm: 296495 389 117 9 0 293652 0

[startup+0.0312429 s]
/proc/loadavg: 2.32 2.07 2.02 4/574 29786
/proc/meminfo: memFree=4209532/32951124 swapFree=61146300/67111528
[pid=29786] ppid=29783 vsize=1185980 CPUtime=0.02 cores=0,2,4,6
/proc/29786/stat : 29786 (sattime2011) R 29783 29786 28662 0 -1 4202496 446 0 0 0 2 0 0 0 25 0 1 0 790008502 1214443520 389 33554432000 4194304 4230460 140733284300480 18446744073709551615 4221579 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/29786/statm: 296495 389 117 9 0 293652 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1185980

[startup+0.100247 s]
/proc/loadavg: 2.32 2.07 2.02 4/574 29786
/proc/meminfo: memFree=4209532/32951124 swapFree=61146300/67111528
[pid=29786] ppid=29783 vsize=1185980 CPUtime=0.09 cores=0,2,4,6
/proc/29786/stat : 29786 (sattime2011) R 29783 29786 28662 0 -1 4202496 446 0 0 0 9 0 0 0 25 0 1 0 790008502 1214443520 389 33554432000 4194304 4230460 140733284300480 18446744073709551615 4224356 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/29786/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): 0.112019
CPU time (s): 0.109983
CPU user time (s): 0.109983
CPU system time (s): 0
CPU usage (%): 98.1824
Max. virtual memory (cumulated for all children) (KiB): 1185980

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.109983
system time used= 0
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= 2

runsolver used 0.007998 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node139 at 2011-05-30 21:35:08
IDJOB=3427092
IDBENCH=83064
IDSOLVER=1924
FILE ID=node139/3427092-1306784108
RUNJOBID= node139-1306779105-29538
PBS_JOBID= 13474985
Free space on /tmp= 56816 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v800-c3408-S846876765-035.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3427092-1306784108/watcher-3427092-1306784108 -o /tmp/evaluation-result-3427092-1306784108/solver-3427092-1306784108 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3427092-1306784108.cnf 202357662

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

MD5SUM BENCH= 0d5f032713ed63748b72ef45ba69a269
RANDOM SEED=202357662

node139.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		: 2666.852
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	: 5333.70
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		: 2666.852
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		: 2666.852
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		: 2666.852
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		: 2666.852
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	: 5321.49
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		: 2666.852
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		: 2666.852
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		: 2666.852
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	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:       4209936 kB
Buffers:        213016 kB
Cached:       17365428 kB
SwapCached:      67196 kB
Active:       14689020 kB
Inactive:     13365156 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:       4209936 kB
SwapTotal:    67111528 kB
SwapFree:     61146300 kB
Dirty:           15568 kB
Writeback:           0 kB
AnonPages:    10409700 kB
Mapped:          38228 kB
Slab:           537280 kB
PageTables:      78696 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 172062264 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= 56808 MiB
End job on node139 at 2011-05-30 21:35:08