Trace number 3162578

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 0.028994 0.0290369

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v650-c2769-S1894319588-015.SATISFIABLE.cnf
MD5SUMc06f05996bba25e7e26c6579a49532fc
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.013997
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 = 46043
0.00/0.02	c SolveTime = 0.02

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-3162578-1301702165/watcher-3162578-1301702165 -o /tmp/evaluation-result-3162578-1301702165/solver-3162578-1301702165 -C 2400 -W 1300 -M 7680 sparrow2011 HOME/instance-3162578-1301702165.cnf 654465777 

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 18094
/proc/meminfo: memFree=23113556/32951124 swapFree=67111524/67111528
[pid=18094] ppid=18092 vsize=12228 CPUtime=0 cores=0,2
/proc/18094/stat : 18094 (sparrow2011) R 18092 18094 17072 0 -1 4202496 435 0 0 0 0 0 0 0 25 0 1 0 281814439 12521472 374 33554432000 4194304 4568220 140734922662320 18446744073709551615 4476658 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/18094/statm: 3057 374 173 92 0 1441 0

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

Child status: 10
Real time (s): 0.0290369
CPU time (s): 0.028994
CPU user time (s): 0.027995
CPU system time (s): 0.000999
CPU usage (%): 99.8523
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.027995
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= 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= 0

runsolver used 0.000999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node136 at 2011-04-02 01:56:05
IDJOB=3162578
IDBENCH=82809
IDSOLVER=1573
FILE ID=node136/3162578-1301702165
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-v650-c2769-S1894319588-015.SATISFIABLE.cnf
COMMAND LINE= sparrow2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3162578-1301702165/watcher-3162578-1301702165 -o /tmp/evaluation-result-3162578-1301702165/solver-3162578-1301702165 -C 2400 -W 1300 -M 7680  sparrow2011 HOME/instance-3162578-1301702165.cnf 654465777

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

MD5SUM BENCH= c06f05996bba25e7e26c6579a49532fc
RANDOM SEED=654465777

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:      23113836 kB
Buffers:        302684 kB
Cached:        9201640 kB
SwapCached:          4 kB
Active:        4232976 kB
Inactive:      5340264 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      23113836 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:   269448 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 01:56:05