Trace number 3162576

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 0.06299 0.0636501

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v750-c3195-S973075635-083.SATISFIABLE.cnf
MD5SUM72699a729b1b1ff68f424bd0209fc31b
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.031994
Satisfiable
(Un)Satisfiability was proved
Number of variables750
Number of clauses3195
Sum of the clauses size9585
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 33195
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.06	c 
0.00/0.06	c UBCSAT version 1.2-sparrow2011 (based on BETA 1.2-b10) SAT11 Sparrow Build
0.00/0.06	c 
0.00/0.06	c http://www.satlib.org/ubcsat
0.00/0.06	c 
0.00/0.06	c ubcsat -h for help
0.00/0.06	c 
0.00/0.06	s SATISFIABLE
0.00/0.06	v  -1 -2 3 4 5 -6 7 -8 9 -10
0.00/0.06	v  11 -12 -13 -14 15 16 17 -18 -19 20
0.00/0.06	v  -21 -22 -23 24 -25 26 27 28 29 30
0.00/0.06	v  31 32 -33 34 -35 36 37 38 -39 40
0.00/0.06	v  -41 42 43 -44 45 46 47 48 -49 50
0.00/0.06	v  51 -52 53 54 -55 -56 57 58 -59 -60
0.00/0.06	v  61 62 63 -64 65 -66 67 68 -69 70
0.00/0.06	v  -71 -72 73 74 -75 76 -77 -78 79 80
0.00/0.06	v  81 -82 83 -84 85 -86 -87 -88 89 -90
0.00/0.06	v  91 -92 93 -94 95 96 97 -98 -99 100
0.00/0.06	v  101 -102 -103 -104 -105 -106 -107 108 109 110
0.00/0.06	v  111 -112 113 -114 115 -116 117 118 119 120
0.00/0.06	v  -121 -122 -123 -124 125 -126 -127 128 -129 130
0.00/0.06	v  131 132 -133 -134 -135 -136 -137 -138 -139 -140
0.00/0.06	v  -141 142 -143 144 -145 -146 -147 -148 -149 150
0.00/0.06	v  151 152 -153 154 155 -156 -157 158 -159 -160
0.00/0.06	v  161 -162 -163 164 -165 166 -167 -168 169 -170
0.00/0.06	v  171 172 173 174 -175 -176 -177 -178 179 180
0.00/0.06	v  181 -182 183 -184 185 186 187 188 -189 -190
0.00/0.06	v  -191 192 193 -194 195 -196 197 198 199 -200
0.00/0.06	v  -201 -202 -203 -204 -205 -206 207 -208 209 -210
0.00/0.06	v  211 -212 213 -214 215 216 217 -218 -219 220
0.00/0.06	v  -221 -222 -223 224 225 -226 -227 -228 -229 -230
0.00/0.06	v  -231 -232 233 -234 235 236 -237 238 239 -240
0.00/0.06	v  241 -242 -243 244 -245 246 247 -248 -249 -250
0.00/0.06	v  -251 -252 -253 -254 255 -256 -257 -258 -259 -260
0.00/0.06	v  261 262 -263 264 265 266 -267 268 -269 -270
0.00/0.06	v  271 -272 -273 274 -275 276 -277 -278 -279 -280
0.00/0.06	v  -281 282 283 284 -285 286 287 288 289 -290
0.00/0.06	v  -291 -292 -293 294 -295 296 297 -298 299 -300
0.00/0.06	v  -301 -302 303 304 305 -306 -307 -308 309 310
0.00/0.06	v  311 312 -313 -314 315 316 317 318 319 320
0.00/0.06	v  -321 322 -323 324 325 -326 -327 328 -329 -330
0.00/0.06	v  331 -332 333 -334 335 -336 -337 338 -339 -340
0.00/0.06	v  -341 342 343 -344 -345 -346 347 -348 -349 350
0.00/0.06	v  351 352 353 -354 -355 -356 357 -358 -359 -360
0.00/0.06	v  -361 362 363 -364 -365 366 367 -368 369 -370
0.00/0.06	v  371 372 373 374 375 -376 377 378 -379 -380
0.00/0.06	v  381 -382 -383 384 385 386 387 388 -389 390
0.00/0.06	v  -391 392 -393 394 -395 -396 -397 -398 399 400
0.00/0.06	v  401 -402 -403 404 -405 -406 -407 -408 409 -410
0.00/0.06	v  -411 412 413 414 415 -416 -417 -418 -419 -420
0.00/0.06	v  421 -422 -423 424 425 426 -427 428 -429 430
0.00/0.06	v  431 432 433 434 435 -436 437 438 439 440
0.00/0.06	v  -441 442 443 444 445 446 447 -448 -449 -450
0.00/0.06	v  -451 452 453 -454 455 456 -457 458 459 460
0.00/0.06	v  -461 -462 -463 464 -465 466 467 -468 469 -470
0.00/0.06	v  -471 472 -473 474 475 -476 -477 -478 -479 -480
0.00/0.06	v  -481 -482 -483 484 -485 486 -487 -488 -489 490
0.00/0.06	v  -491 -492 493 494 -495 496 -497 498 499 -500
0.00/0.06	v  501 -502 503 504 505 -506 -507 508 -509 -510
0.00/0.06	v  511 -512 513 -514 515 -516 -517 518 519 520
0.00/0.06	v  521 522 -523 -524 525 -526 -527 -528 529 530
0.00/0.06	v  531 -532 -533 534 535 536 -537 -538 539 -540
0.00/0.06	v  541 -542 543 -544 545 -546 547 548 549 550
0.00/0.06	v  -551 552 553 -554 -555 -556 -557 -558 -559 560
0.00/0.06	v  561 -562 -563 564 -565 -566 -567 568 569 570
0.00/0.06	v  -571 572 -573 574 575 -576 -577 578 579 580
0.00/0.06	v  581 582 -583 -584 585 -586 587 588 -589 590
0.00/0.06	v  591 -592 -593 -594 -595 596 597 -598 599 600
0.00/0.06	v  -601 602 -603 -604 -605 606 -607 608 -609 -610
0.00/0.06	v  -611 612 -613 -614 615 -616 617 618 -619 620
0.00/0.06	v  -621 622 -623 -624 625 626 627 -628 629 630
0.00/0.06	v  631 632 633 634 -635 636 637 -638 -639 640
0.00/0.06	v  -641 642 -643 644 645 -646 647 -648 -649 650
0.00/0.06	v  651 -652 -653 654 655 656 -657 -658 659 -660
0.00/0.06	v  -661 662 663 -664 665 -666 -667 -668 669 670
0.00/0.06	v  -671 672 -673 674 675 676 677 678 679 -680
0.00/0.06	v  681 -682 683 684 685 686 -687 -688 -689 690
0.00/0.06	v  691 692 693 694 695 696 697 698 -699 700
0.00/0.06	v  -701 -702 703 704 -705 -706 707 -708 709 710
0.00/0.06	v  711 -712 -713 714 -715 -716 -717 718 -719 -720
0.00/0.06	v  -721 722 -723 -724 725 -726 727 -728 -729 730
0.00/0.06	v  731 -732 733 -734 -735 736 737 -738 739 740
0.00/0.06	v  741 -742 -743 744 745 -746 747 748 -749 -750
0.00/0.06	v  0
0.00/0.06	c SearchSteps = 107100
0.00/0.06	c SolveTime = 0.06

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-3162576-1301702164/watcher-3162576-1301702164 -o /tmp/evaluation-result-3162576-1301702164/solver-3162576-1301702164 -C 2400 -W 1300 -M 7680 sparrow2011 HOME/instance-3162576-1301702164.cnf 136021629 

running on 2 cores: 0,2

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: 3.91 3.97 3.94 4/189 18040
/proc/meminfo: memFree=23113896/32951124 swapFree=67111524/67111528
[pid=18040] ppid=18038 vsize=12228 CPUtime=0 cores=0,2
/proc/18040/stat : 18040 (sparrow2011) R 18038 18040 17072 0 -1 4202496 446 0 0 0 0 0 0 0 25 0 1 0 281814400 12521472 384 33554432000 4194304 4568220 140733468071200 18446744073709551615 4208848 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/18040/statm: 3057 384 173 92 0 1441 0

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

Child status: 10
Real time (s): 0.0636501
CPU time (s): 0.06299
CPU user time (s): 0.06299
CPU system time (s): 0
CPU usage (%): 98.9629
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.06299
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= 464
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= 0

runsolver used 0.003999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node136 at 2011-04-02 01:56:04
IDJOB=3162576
IDBENCH=82807
IDSOLVER=1573
FILE ID=node136/3162576-1301702164
RUNJOBID= node136-1301698258-17090
PBS_JOBID= 12840736
Free space on /tmp= 71372 MiB

SOLVER NAME= sparrow2011 sparrow2011_ubcsat1.2_2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v750-c3195-S973075635-083.SATISFIABLE.cnf
COMMAND LINE= sparrow2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3162576-1301702164/watcher-3162576-1301702164 -o /tmp/evaluation-result-3162576-1301702164/solver-3162576-1301702164 -C 2400 -W 1300 -M 7680  sparrow2011 HOME/instance-3162576-1301702164.cnf 136021629

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

MD5SUM BENCH= 72699a729b1b1ff68f424bd0209fc31b
RANDOM SEED=136021629

node136.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		: 2666.809
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		: 2666.809
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		: 2666.809
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		: 2666.809
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	: 5332.76
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		: 2666.809
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		: 2666.809
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		: 2666.809
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		: 2666.809
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:      23114160 kB
Buffers:        302660 kB
Cached:        9201664 kB
SwapCached:          4 kB
Active:        4232944 kB
Inactive:      5340216 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      23114160 kB
SwapTotal:    67111528 kB
SwapFree:     67111524 kB
Dirty:             424 kB
Writeback:           0 kB
AnonPages:       68824 kB
Mapped:          15800 kB
Slab:           199384 kB
PageTables:       5276 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   268492 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= 71372 MiB
End job on node136 at 2011-04-02 01:56:04