Trace number 3222505

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
sparrow2011 sparrow2011_ubcsat1.2_2011-03-02SAT 0.026995 0.0275121

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 

0.00/0.02	c 
0.00/0.02	c UBCSAT version 1.2-sparrow2011 (based on BETA 1.2-b10) SAT11 Sparrow Build
0.00/0.02	c 
0.00/0.02	c http://www.satlib.org/ubcsat
0.00/0.02	c 
0.00/0.02	c ubcsat -h for help
0.00/0.02	c 
0.00/0.02	s SATISFIABLE
0.00/0.02	v  1 2 3 -4 -5 6 -7 8 9 10
0.00/0.02	v  11 12 13 14 -15 -16 -17 18 -19 20
0.00/0.02	v  -21 22 23 24 -25 -26 27 -28 29 -30
0.00/0.02	v  -31 32 -33 -34 -35 -36 -37 38 -39 -40
0.00/0.02	v  -41 42 43 44 -45 -46 -47 -48 49 -50
0.00/0.02	v  51 52 -53 -54 -55 -56 57 58 -59 -60
0.00/0.02	v  61 62 -63 -64 65 66 67 -68 69 70
0.00/0.02	v  -71 72 -73 74 75 76 -77 -78 79 -80
0.00/0.02	v  -81 -82 83 84 85 -86 -87 88 89 -90
0.00/0.02	v  91 92 93 94 -95 -96 97 -98 -99 100
0.00/0.02	v  -101 102 -103 104 105 106 -107 -108 109 110
0.00/0.02	v  111 112 113 -114 -115 116 -117 -118 -119 120
0.00/0.02	v  121 -122 123 -124 -125 -126 127 128 -129 130
0.00/0.02	v  -131 -132 -133 -134 -135 -136 -137 -138 139 -140
0.00/0.02	v  -141 -142 143 -144 145 146 -147 -148 -149 -150
0.00/0.02	v  151 -152 -153 -154 155 -156 -157 158 159 -160
0.00/0.02	v  161 -162 -163 164 -165 -166 167 168 -169 170
0.00/0.02	v  -171 172 -173 -174 175 -176 177 178 179 -180
0.00/0.02	v  181 -182 183 184 -185 186 -187 -188 -189 190
0.00/0.02	v  -191 192 -193 194 195 196 -197 198 -199 200
0.00/0.02	v  201 -202 203 204 -205 -206 207 208 -209 -210
0.00/0.02	v  -211 -212 213 -214 215 216 217 218 -219 -220
0.00/0.02	v  -221 222 -223 224 -225 226 227 -228 229 230
0.00/0.02	v  -231 -232 -233 234 235 -236 -237 -238 -239 -240
0.00/0.02	v  -241 242 -243 244 245 -246 -247 248 249 250
0.00/0.02	v  -251 -252 -253 -254 255 -256 257 -258 259 260
0.00/0.02	v  261 -262 263 264 265 266 -267 -268 -269 -270
0.00/0.02	v  -271 272 273 -274 -275 -276 277 -278 279 280
0.00/0.02	v  281 -282 283 -284 -285 -286 -287 -288 289 -290
0.00/0.02	v  -291 -292 293 -294 -295 296 297 -298 -299 300
0.00/0.02	v  301 -302 303 -304 305 306 -307 308 309 -310
0.00/0.02	v  -311 -312 313 314 315 -316 -317 -318 -319 -320
0.00/0.02	v  321 -322 323 324 325 326 -327 328 -329 330
0.00/0.02	v  331 332 333 -334 335 -336 337 338 -339 -340
0.00/0.02	v  -341 -342 343 344 -345 346 347 348 -349 350
0.00/0.02	v  -351 -352 353 -354 -355 356 -357 358 359 -360
0.00/0.02	v  361 -362 363 364 365 -366 367 368 -369 -370
0.00/0.02	v  371 -372 373 -374 375 -376 377 -378 -379 -380
0.00/0.02	v  -381 382 383 -384 385 -386 387 -388 -389 -390
0.00/0.02	v  391 -392 393 -394 395 396 397 -398 399 -400
0.00/0.02	v  401 402 403 404 -405 406 -407 408 -409 410
0.00/0.02	v  411 -412 -413 -414 415 -416 -417 -418 -419 420
0.00/0.02	v  421 422 423 -424 -425 -426 427 428 -429 430
0.00/0.02	v  -431 432 -433 -434 -435 -436 437 438 439 440
0.00/0.02	v  441 -442 -443 -444 -445 -446 -447 -448 -449 -450
0.00/0.02	v  -451 452 453 454 455 456 457 458 459 -460
0.00/0.02	v  -461 462 463 464 465 466 -467 468 -469 -470
0.00/0.02	v  471 -472 -473 474 -475 476 -477 -478 479 -480
0.00/0.02	v  481 482 -483 -484 485 486 -487 -488 -489 490
0.00/0.02	v  491 492 493 -494 -495 496 -497 -498 499 500
0.00/0.02	v  -501 -502 -503 504 -505 506 -507 -508 509 -510
0.00/0.02	v  -511 512 513 -514 515 -516 -517 -518 -519 -520
0.00/0.02	v  -521 -522 -523 524 -525 -526 527 528 -529 530
0.00/0.02	v  -531 532 533 534 -535 536 -537 -538 539 540
0.00/0.02	v  541 -542 -543 544 545 546 -547 548 549 -550
0.00/0.02	v  551 552 553 -554 -555 -556 -557 -558 559 -560
0.00/0.02	v  561 -562 563 -564 -565 -566 -567 568 569 570
0.00/0.02	v  571 572 -573 -574 -575 -576 577 578 579 -580
0.00/0.02	v  -581 582 583 -584 -585 -586 -587 -588 -589 590
0.00/0.02	v  591 -592 -593 594 -595 596 -597 -598 -599 600
0.00/0.02	v  601 -602 603 -604 605 606 607 608 609 610
0.00/0.02	v  -611 612 613 614 615 616 -617 -618 619 620
0.00/0.02	v  -621 622 -623 624 -625 626 -627 -628 629 630
0.00/0.02	v  631 -632 -633 634 635 636 637 638 639 -640
0.00/0.02	v  641 -642 -643 644 645 646 647 -648 649 -650
0.00/0.02	v  -651 652 653 -654 -655 656 657 -658 659 660
0.00/0.02	v  661 -662 -663 664 665 -666 667 -668 -669 670
0.00/0.02	v  -671 -672 673 -674 675 676 677 -678 679 -680
0.00/0.02	v  -681 682 -683 -684 685 686 687 688 -689 690
0.00/0.02	v  691 -692 693 694 695 696 697 698 699 -700
0.00/0.02	v  -701 -702 -703 704 705 -706 707 708 709 710
0.00/0.02	v  -711 712 713 714 -715 -716 717 -718 -719 720
0.00/0.02	v  721 -722 723 -724 -725 -726 727 -728 -729 730
0.00/0.02	v  731 -732 733 -734 -735 -736 737 738 -739 740
0.00/0.02	v  -741 -742 -743 -744 -745 -746 -747 -748 -749 750
0.00/0.02	v  751 752 -753 -754 -755 -756 757 -758 -759 -760
0.00/0.02	v  761 762 -763 764 765 766 -767 -768 769 770
0.00/0.02	v  -771 772 -773 -774 775 -776 777 -778 779 780
0.00/0.02	v  781 -782 783 -784 785 -786 -787 -788 789 -790
0.00/0.02	v  791 792 793 -794 795 796 797 798 -799 800
0.00/0.02	v  0
0.00/0.02	c SearchSteps = 44433
0.00/0.02	c SolveTime = 0.02

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

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-3222505-1303309072/watcher-3222505-1303309072 -o /tmp/evaluation-result-3222505-1303309072/solver-3222505-1303309072 -C 5000 -W 5000 -M 15500 sparrow2011 HOME/instance-3222505-1303309072.cnf 1508814185 

running on 4 cores: 1,3,5,7

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): 5000 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: 3.00 3.32 4.45 2/177 2464
/proc/meminfo: memFree=17988344/32951124 swapFree=67111528/67111528
[pid=2464] ppid=2462 vsize=12228 CPUtime=0 cores=1,3,5,7
/proc/2464/stat : 2464 (sparrow2011) R 2462 2464 1055 0 -1 4202496 445 0 0 0 0 0 0 0 25 0 1 0 442509847 12521472 385 33554432000 4194304 4568220 140735641606304 18446744073709551615 4426866 0 0 4096 0 0 0 0 17 3 0 0 0
/proc/2464/statm: 3057 385 172 92 0 1441 0

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

Child status: 10
Real time (s): 0.0275121
CPU time (s): 0.026995
CPU user time (s): 0.024996
CPU system time (s): 0.001999
CPU usage (%): 98.1204
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.024996
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= 469
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 0.000999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node103 at 2011-04-20 16:17:52
IDJOB=3222505
IDBENCH=83101
IDSOLVER=1636
FILE ID=node103/3222505-1303309072
RUNJOBID= node103-1303309072-2418
PBS_JOBID= 13049589
Free space on /tmp= 71560 MiB

SOLVER NAME= sparrow2011 sparrow2011_ubcsat1.2_2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v800-c3408-S91768321-029.SATISFIABLE.cnf
COMMAND LINE= sparrow2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3222505-1303309072/watcher-3222505-1303309072 -o /tmp/evaluation-result-3222505-1303309072/solver-3222505-1303309072 -C 5000 -W 5000 -M 15500  sparrow2011 HOME/instance-3222505-1303309072.cnf 1508814185

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

MD5SUM BENCH= a8d280a0ad5a42e6946605bb6356e226
RANDOM SEED=1508814185

node103.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		: 2666.858
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	: 5333.71
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		: 2666.858
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		: 2666.858
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		: 2666.858
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	: 5332.77
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		: 2666.858
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	: 5332.75
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		: 2666.858
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		: 2666.858
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	: 5332.83
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		: 2666.858
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:      17988484 kB
Buffers:        683244 kB
Cached:       13884068 kB
SwapCached:          0 kB
Active:        8420832 kB
Inactive:      6210768 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      17988484 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             788 kB
Writeback:           0 kB
AnonPages:       63796 kB
Mapped:          14872 kB
Slab:           269036 kB
PageTables:       3960 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   213656 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= 71560 MiB
End job on node103 at 2011-04-20 16:17:52