Trace number 3162672

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 0.014996 0.0153239

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v700-c2982-S171669125-021.SATISFIABLE.cnf
MD5SUM9649b9e4fa8d251c4c59f8783cbf0b60
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.008998
Satisfiable
(Un)Satisfiability was proved
Number of variables700
Number of clauses2982
Sum of the clauses size8946
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32982
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.01	c 
0.00/0.01	c UBCSAT version 1.2-sparrow2011 (based on BETA 1.2-b10) SAT11 Sparrow Build
0.00/0.01	c 
0.00/0.01	c http://www.satlib.org/ubcsat
0.00/0.01	c 
0.00/0.01	c ubcsat -h for help
0.00/0.01	c 
0.00/0.01	s SATISFIABLE
0.00/0.01	v  -1 -2 3 4 5 6 7 -8 -9 -10
0.00/0.01	v  -11 -12 -13 14 15 16 17 -18 19 -20
0.00/0.01	v  -21 -22 23 24 25 -26 -27 28 -29 -30
0.00/0.01	v  31 32 -33 -34 35 36 37 38 39 40
0.00/0.01	v  41 -42 43 -44 45 -46 47 -48 49 50
0.00/0.01	v  -51 -52 53 54 -55 56 57 58 59 -60
0.00/0.01	v  -61 -62 63 -64 -65 66 -67 -68 69 70
0.00/0.01	v  -71 -72 -73 74 -75 -76 77 -78 -79 80
0.00/0.01	v  81 82 -83 -84 -85 86 87 -88 -89 -90
0.00/0.01	v  -91 92 -93 -94 -95 96 -97 -98 -99 -100
0.00/0.01	v  101 -102 103 104 105 -106 -107 108 -109 110
0.00/0.01	v  111 112 113 -114 -115 116 117 -118 -119 -120
0.00/0.01	v  -121 122 123 -124 125 126 127 128 129 130
0.00/0.01	v  -131 -132 133 -134 135 -136 -137 138 139 -140
0.00/0.01	v  -141 142 -143 -144 -145 -146 -147 148 149 150
0.00/0.01	v  151 152 -153 -154 155 156 157 -158 159 160
0.00/0.01	v  -161 -162 163 164 -165 -166 -167 -168 169 170
0.00/0.01	v  -171 -172 173 -174 175 -176 177 178 -179 180
0.00/0.01	v  -181 -182 183 -184 185 -186 187 188 -189 -190
0.00/0.01	v  -191 192 193 -194 195 196 -197 -198 199 200
0.00/0.01	v  -201 202 -203 -204 205 206 207 -208 -209 210
0.00/0.01	v  211 212 -213 -214 -215 -216 -217 218 219 -220
0.00/0.01	v  -221 222 -223 -224 225 -226 227 228 229 -230
0.00/0.01	v  231 232 233 234 -235 -236 237 238 -239 -240
0.00/0.01	v  -241 -242 -243 -244 -245 246 247 -248 -249 -250
0.00/0.01	v  251 -252 -253 254 -255 256 -257 -258 259 260
0.00/0.01	v  -261 -262 -263 -264 -265 266 -267 -268 269 270
0.00/0.01	v  271 -272 -273 274 -275 -276 277 278 279 -280
0.00/0.01	v  -281 -282 -283 284 285 -286 287 288 289 -290
0.00/0.01	v  -291 -292 293 294 295 296 -297 298 -299 300
0.00/0.01	v  301 302 303 304 -305 306 307 -308 309 -310
0.00/0.01	v  311 312 -313 -314 -315 -316 317 -318 -319 320
0.00/0.01	v  -321 -322 323 -324 325 326 -327 -328 329 -330
0.00/0.01	v  -331 -332 333 -334 335 336 -337 -338 -339 340
0.00/0.01	v  -341 342 -343 344 345 346 347 -348 349 -350
0.00/0.01	v  -351 -352 -353 354 -355 -356 357 358 359 360
0.00/0.01	v  -361 362 -363 -364 -365 -366 -367 368 -369 370
0.00/0.01	v  371 372 -373 -374 -375 -376 377 378 379 380
0.00/0.01	v  -381 382 383 384 385 386 -387 -388 389 390
0.00/0.01	v  -391 -392 393 -394 -395 -396 397 398 -399 400
0.00/0.01	v  -401 402 403 -404 405 406 -407 -408 409 410
0.00/0.01	v  -411 412 -413 -414 415 -416 -417 418 -419 420
0.00/0.01	v  -421 422 -423 -424 -425 -426 -427 -428 -429 430
0.00/0.01	v  431 -432 433 434 -435 436 437 -438 -439 -440
0.00/0.01	v  441 442 -443 444 -445 -446 447 -448 449 450
0.00/0.01	v  -451 452 -453 454 -455 456 -457 458 -459 460
0.00/0.01	v  -461 462 463 464 465 -466 -467 468 469 -470
0.00/0.01	v  471 -472 -473 474 475 -476 -477 478 -479 480
0.00/0.01	v  481 482 -483 484 485 486 -487 -488 -489 -490
0.00/0.01	v  491 -492 493 -494 495 496 -497 -498 -499 500
0.00/0.01	v  -501 -502 -503 504 -505 -506 507 -508 509 510
0.00/0.01	v  -511 -512 513 -514 -515 -516 -517 518 -519 520
0.00/0.01	v  -521 -522 523 -524 -525 526 527 -528 529 530
0.00/0.01	v  531 -532 533 -534 -535 -536 537 538 539 540
0.00/0.01	v  -541 542 -543 544 -545 -546 547 -548 -549 -550
0.00/0.01	v  -551 -552 553 554 555 -556 -557 558 -559 560
0.00/0.01	v  561 -562 563 -564 565 -566 567 568 -569 -570
0.00/0.01	v  -571 -572 -573 574 -575 -576 -577 578 579 580
0.00/0.01	v  -581 582 583 -584 585 -586 587 -588 -589 -590
0.00/0.01	v  591 -592 593 -594 -595 596 -597 598 -599 -600
0.00/0.01	v  -601 -602 603 -604 -605 -606 607 -608 609 -610
0.00/0.01	v  611 -612 613 -614 615 616 -617 -618 -619 -620
0.00/0.01	v  -621 622 -623 624 625 626 -627 -628 -629 630
0.00/0.01	v  -631 632 633 634 -635 636 637 638 -639 -640
0.00/0.01	v  641 -642 -643 -644 645 -646 647 -648 -649 650
0.00/0.01	v  651 -652 -653 654 -655 656 657 658 659 -660
0.00/0.01	v  -661 662 -663 -664 -665 666 -667 668 -669 -670
0.00/0.01	v  671 672 673 674 675 676 677 -678 679 -680
0.00/0.01	v  681 682 683 -684 -685 686 687 -688 -689 -690
0.00/0.01	v  -691 -692 -693 -694 -695 -696 -697 -698 -699 700
0.00/0.01	v  0
0.00/0.01	c SearchSteps = 22648
0.00/0.01	c SolveTime = 0.01

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-3162672-1301704094/watcher-3162672-1301704094 -o /tmp/evaluation-result-3162672-1301704094/solver-3162672-1301704094 -C 2400 -W 1300 -M 7680 sparrow2011 HOME/instance-3162672-1301704094.cnf 729432966 

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: 4.00 4.00 3.95 4/189 12252
/proc/meminfo: memFree=20671732/32950928 swapFree=67111528/67111528
[pid=12252] ppid=12250 vsize=12228 CPUtime=0 cores=0,2
/proc/12252/stat : 12252 (sparrow2011) R 12250 12252 11113 0 -1 4202496 442 0 0 0 0 0 0 0 25 0 1 0 282009086 12521472 381 33554432000 4194304 4568220 140734937617760 18446744073709551615 4242517 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/12252/statm: 3057 381 173 92 0 1441 0

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

Child status: 10
Real time (s): 0.0153239
CPU time (s): 0.014996
CPU user time (s): 0.013997
CPU system time (s): 0.000999
CPU usage (%): 97.8602
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.013997
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 460
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 0.002999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node127 at 2011-04-02 02:28:14
IDJOB=3162672
IDBENCH=82903
IDSOLVER=1573
FILE ID=node127/3162672-1301704094
RUNJOBID= node127-1301698567-11131
PBS_JOBID= 12840755
Free space on /tmp= 71100 MiB

SOLVER NAME= sparrow2011 sparrow2011_ubcsat1.2_2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v700-c2982-S171669125-021.SATISFIABLE.cnf
COMMAND LINE= sparrow2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3162672-1301704094/watcher-3162672-1301704094 -o /tmp/evaluation-result-3162672-1301704094/solver-3162672-1301704094 -C 2400 -W 1300 -M 7680  sparrow2011 HOME/instance-3162672-1301704094.cnf 729432966

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

MD5SUM BENCH= 9649b9e4fa8d251c4c59f8783cbf0b60
RANDOM SEED=729432966

node127.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		: 2666.823
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	: 5333.64
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		: 2666.823
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		: 2666.823
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		: 2666.823
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	: 5332.86
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		: 2666.823
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		: 2666.823
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		: 2666.823
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	: 5332.60
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		: 2666.823
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:     32950928 kB
MemFree:      20672012 kB
Buffers:        348004 kB
Cached:       11584744 kB
SwapCached:          0 kB
Active:        6685432 kB
Inactive:      5317796 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      20672012 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             428 kB
Writeback:           0 kB
AnonPages:       69908 kB
Mapped:          15800 kB
Slab:           212904 kB
PageTables:       5288 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   267380 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= 71100 MiB
End job on node127 at 2011-04-02 02:28:14