Trace number 3170083

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 0.433934 0.436863

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 benchmark0.012998
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 

0.39/0.43	c 0 clauses are redundant and removed
0.39/0.43	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.39/0.43	c 0 vars are fixed and 0 clauses are removed after lookahead
0.39/0.43	c initial seed is 726559514
0.39/0.43	c try=1 flip j=966896 walk=866284 seed 726559531
0.39/0.43	c A solution is found
0.39/0.43	s SATISFIABLE
0.39/0.43	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 
0.39/0.43	v 0 
0.39/0.43	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-3170083-1301709945/watcher-3170083-1301709945 -o /tmp/evaluation-result-3170083-1301709945/solver-3170083-1301709945 -C 2400 -W 1300 -M 7680 sattime+ HOME/instance-3170083-1301709945.cnf 726559401 

running on 2 cores: 5,7

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: 4.04 4.07 4.96 6/185 2959
/proc/meminfo: memFree=22487628/32951124 swapFree=67111528/67111528
[pid=2959] ppid=2957 vsize=880764 CPUtime=0 cores=5,7
/proc/2959/stat : 2959 (sattime+) R 2957 2959 2255 0 -1 4194304 222 0 0 0 0 0 0 0 18 0 1 0 282597278 901902336 165 33554432000 4194304 4228340 140736504060960 18446744073709551615 4202878 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/2959/statm: 220191 166 102 9 0 217348 0

[startup+0.0788461 s]
/proc/loadavg: 4.04 4.07 4.96 6/185 2959
/proc/meminfo: memFree=22487628/32951124 swapFree=67111528/67111528
[pid=2959] ppid=2957 vsize=881160 CPUtime=0.07 cores=5,7
/proc/2959/stat : 2959 (sattime+) R 2957 2959 2255 0 -1 4202496 392 0 0 0 7 0 0 0 18 0 1 0 282597278 902307840 333 33554432000 4194304 4228340 140736504060960 18446744073709551615 4217315 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/2959/statm: 220290 333 116 9 0 217447 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 881160

[startup+0.100844 s]
/proc/loadavg: 4.04 4.07 4.96 6/185 2959
/proc/meminfo: memFree=22487628/32951124 swapFree=67111528/67111528
[pid=2959] ppid=2957 vsize=881160 CPUtime=0.09 cores=5,7
/proc/2959/stat : 2959 (sattime+) R 2957 2959 2255 0 -1 4202496 392 0 0 0 9 0 0 0 18 0 1 0 282597278 902307840 333 33554432000 4194304 4228340 140736504060960 18446744073709551615 4218680 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/2959/statm: 220290 333 116 9 0 217447 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 881160

[startup+0.300805 s]
/proc/loadavg: 4.04 4.07 4.96 6/185 2959
/proc/meminfo: memFree=22487628/32951124 swapFree=67111528/67111528
[pid=2959] ppid=2957 vsize=881160 CPUtime=0.29 cores=5,7
/proc/2959/stat : 2959 (sattime+) R 2957 2959 2255 0 -1 4202496 392 0 0 0 29 0 0 0 18 0 1 0 282597278 902307840 333 33554432000 4194304 4228340 140736504060960 18446744073709551615 4214536 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/2959/statm: 220290 333 116 9 0 217447 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 881160

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

[startup+0.40079 s]
/proc/loadavg: 4.04 4.07 4.96 6/185 2959
/proc/meminfo: memFree=22487628/32951124 swapFree=67111528/67111528
[pid=2959] ppid=2957 vsize=881160 CPUtime=0.39 cores=5,7
/proc/2959/stat : 2959 (sattime+) R 2957 2959 2255 0 -1 4202496 392 0 0 0 39 0 0 0 18 0 1 0 282597278 902307840 333 33554432000 4194304 4228340 140736504060960 18446744073709551615 4217520 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/2959/statm: 220290 333 116 9 0 217447 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 881160

Child status: 10
Real time (s): 0.436863
CPU time (s): 0.433934
CPU user time (s): 0.433934
CPU system time (s): 0
CPU usage (%): 99.3295
Max. virtual memory (cumulated for all children) (KiB): 881160

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.433934
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= 396
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= 4
involuntary context switches= 1

runsolver used 0.000999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node101 at 2011-04-02 04:05:45
IDJOB=3170083
IDBENCH=83101
IDSOLVER=1579
FILE ID=node101/3170083-1301709945
RUNJOBID= node101-1301708643-2285
PBS_JOBID= 12840851
Free space on /tmp= 72324 MiB

SOLVER NAME= sattime+ 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v800-c3408-S91768321-029.SATISFIABLE.cnf
COMMAND LINE= sattime+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3170083-1301709945/watcher-3170083-1301709945 -o /tmp/evaluation-result-3170083-1301709945/solver-3170083-1301709945 -C 2400 -W 1300 -M 7680  sattime+ HOME/instance-3170083-1301709945.cnf 726559401

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

MD5SUM BENCH= a8d280a0ad5a42e6946605bb6356e226
RANDOM SEED=726559401

node101.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		: 2666.841
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	: 5333.68
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		: 2666.841
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	: 5226.07
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		: 2666.841
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	: 5332.77
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		: 2666.841
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	: 5332.83
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		: 2666.841
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		: 2666.841
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		: 2666.841
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		: 2666.841
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:      22488172 kB
Buffers:        327860 kB
Cached:        9822784 kB
SwapCached:          0 kB
Active:        6654068 kB
Inactive:      3561704 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      22488172 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           15552 kB
Writeback:           0 kB
AnonPages:       65228 kB
Mapped:          15244 kB
Slab:           183600 kB
PageTables:       4976 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  1108576 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= 72308 MiB
End job on node101 at 2011-04-02 04:05:46