Trace number 3221947

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 0.020996 0.021855

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v650-c2769-S4140122-004.SATISFIABLE.cnf
MD5SUM2b3c7a221faca9e629eac8ef7f1b0cd7
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.020996
Satisfiable
(Un)Satisfiability was proved
Number of variables650
Number of clauses2769
Sum of the clauses size8307
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32769
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  0
0.00/0.02	c SearchSteps = 35735
0.00/0.02	c SolveTime = 0.01

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-3221947-1303300227/watcher-3221947-1303300227 -o /tmp/evaluation-result-3221947-1303300227/solver-3221947-1303300227 -C 5000 -W 5000 -M 15500 sparrow2011 HOME/instance-3221947-1303300227.cnf 476488446 

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: 2.00 2.00 2.00 3/177 26034
/proc/meminfo: memFree=18118568/32951124 swapFree=67111528/67111528
[pid=26034] ppid=26032 vsize=12228 CPUtime=0 cores=1,3,5,7
/proc/26034/stat : 26034 (sparrow2011) R 26032 26034 25482 0 -1 4202496 435 0 0 0 0 0 0 0 25 0 1 0 441620468 12521472 375 33554432000 4194304 4568220 140734992769248 18446744073709551615 4239286 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26034/statm: 3057 375 173 92 0 1441 0

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

Child status: 10
Real time (s): 0.021855
CPU time (s): 0.020996
CPU user time (s): 0.020996
CPU system time (s): 0
CPU usage (%): 96.0697
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.020996
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= 453
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 0.001999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node139 at 2011-04-20 13:50:27
IDJOB=3221947
IDBENCH=83008
IDSOLVER=1636
FILE ID=node139/3221947-1303300227
RUNJOBID= node139-1303290220-25501
PBS_JOBID= 13049612
Free space on /tmp= 72744 MiB

SOLVER NAME= sparrow2011 sparrow2011_ubcsat1.2_2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v650-c2769-S4140122-004.SATISFIABLE.cnf
COMMAND LINE= sparrow2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3221947-1303300227/watcher-3221947-1303300227 -o /tmp/evaluation-result-3221947-1303300227/solver-3221947-1303300227 -C 5000 -W 5000 -M 15500  sparrow2011 HOME/instance-3221947-1303300227.cnf 476488446

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

MD5SUM BENCH= 2b3c7a221faca9e629eac8ef7f1b0cd7
RANDOM SEED=476488446

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:      18118708 kB
Buffers:        713072 kB
Cached:       13705052 kB
SwapCached:          0 kB
Active:        8090560 kB
Inactive:      6392052 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      18118708 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            1268 kB
Writeback:           0 kB
AnonPages:       64376 kB
Mapped:          15500 kB
Slab:           288968 kB
PageTables:       4380 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   215960 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= 72744 MiB
End job on node139 at 2011-04-20 13:50:27