Trace number 3162520

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 0.048991 0.048739

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v650-c2769-S525571208-063.SATISFIABLE.cnf
MD5SUM0d5db3c80640d96c57ce9e3d0b9dc725
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.020995
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 

0.02/0.04	c 
0.02/0.04	c UBCSAT version 1.2-sparrow2011 (based on BETA 1.2-b10) SAT11 Sparrow Build
0.02/0.04	c 
0.02/0.04	c http://www.satlib.org/ubcsat
0.02/0.04	c 
0.02/0.04	c ubcsat -h for help
0.02/0.04	c 
0.02/0.04	s SATISFIABLE
0.02/0.04	v  1 2 3 -4 -5 6 -7 8 9 -10
0.02/0.04	v  11 -12 -13 14 -15 16 17 18 -19 20
0.02/0.04	v  21 -22 23 24 25 26 -27 28 29 30
0.02/0.04	v  -31 32 33 34 35 36 37 38 39 40
0.02/0.04	v  41 42 43 -44 -45 -46 47 -48 49 50
0.02/0.04	v  51 -52 53 -54 55 56 -57 58 59 -60
0.02/0.04	v  -61 62 -63 -64 -65 66 67 -68 69 70
0.02/0.04	v  71 72 73 74 75 -76 -77 -78 -79 -80
0.02/0.04	v  -81 -82 83 84 -85 -86 87 -88 -89 -90
0.02/0.04	v  91 92 -93 94 -95 96 97 -98 -99 -100
0.02/0.04	v  101 -102 -103 104 -105 -106 -107 108 109 -110
0.02/0.04	v  111 112 -113 -114 115 116 117 118 119 -120
0.02/0.04	v  121 -122 123 -124 125 126 127 -128 129 130
0.02/0.04	v  131 -132 -133 134 135 -136 -137 138 139 -140
0.02/0.04	v  141 -142 -143 -144 -145 -146 -147 148 149 -150
0.02/0.04	v  -151 -152 -153 154 -155 156 -157 158 -159 160
0.02/0.04	v  161 -162 163 164 -165 166 -167 -168 169 -170
0.02/0.04	v  171 -172 -173 -174 -175 176 177 -178 -179 -180
0.02/0.04	v  181 182 -183 -184 185 -186 -187 -188 -189 -190
0.02/0.04	v  191 192 193 194 195 -196 -197 198 -199 -200
0.02/0.04	v  -201 -202 203 -204 205 -206 207 -208 -209 -210
0.02/0.04	v  211 -212 213 -214 215 216 217 218 219 220
0.02/0.04	v  -221 222 -223 224 -225 -226 -227 228 -229 -230
0.02/0.04	v  231 -232 233 234 235 236 -237 238 -239 -240
0.02/0.04	v  241 242 -243 244 -245 -246 -247 -248 -249 -250
0.02/0.04	v  -251 -252 253 -254 -255 -256 257 -258 -259 260
0.02/0.04	v  261 -262 -263 -264 265 266 267 268 -269 270
0.02/0.04	v  -271 -272 273 -274 275 276 277 -278 279 280
0.02/0.04	v  281 282 283 -284 285 286 -287 288 289 290
0.02/0.04	v  291 -292 293 -294 295 296 297 -298 299 300
0.02/0.04	v  301 -302 -303 304 -305 306 -307 -308 -309 -310
0.02/0.04	v  311 -312 313 -314 315 316 -317 -318 319 320
0.02/0.04	v  321 322 323 324 -325 326 327 328 -329 330
0.02/0.04	v  -331 -332 333 334 -335 336 -337 338 -339 -340
0.02/0.04	v  341 342 -343 344 -345 -346 347 348 -349 -350
0.02/0.04	v  351 352 -353 -354 -355 -356 -357 358 359 -360
0.02/0.04	v  -361 362 -363 -364 -365 366 -367 368 369 370
0.02/0.04	v  371 -372 373 -374 375 376 377 -378 -379 -380
0.02/0.04	v  -381 382 -383 -384 -385 -386 -387 -388 -389 -390
0.02/0.04	v  -391 392 393 -394 -395 -396 -397 -398 399 400
0.02/0.04	v  401 -402 403 -404 -405 -406 -407 -408 409 410
0.02/0.04	v  -411 -412 413 -414 -415 -416 -417 418 -419 -420
0.02/0.04	v  -421 -422 423 424 -425 -426 -427 -428 -429 430
0.02/0.04	v  431 -432 433 434 -435 436 437 438 439 -440
0.02/0.04	v  441 -442 443 444 -445 -446 447 -448 449 450
0.02/0.04	v  451 452 453 -454 455 -456 457 458 -459 460
0.02/0.04	v  461 -462 463 -464 -465 -466 -467 468 469 470
0.02/0.04	v  471 472 -473 -474 -475 -476 -477 -478 479 -480
0.02/0.04	v  -481 482 -483 -484 -485 486 -487 -488 -489 490
0.02/0.04	v  491 -492 493 494 495 -496 -497 -498 499 500
0.02/0.04	v  501 -502 503 -504 -505 -506 507 -508 -509 510
0.02/0.04	v  -511 512 -513 514 515 516 -517 -518 -519 -520
0.02/0.04	v  521 522 -523 -524 -525 526 -527 -528 529 -530
0.02/0.04	v  -531 532 533 -534 535 536 537 538 539 -540
0.02/0.04	v  -541 542 -543 544 545 -546 -547 -548 549 550
0.02/0.04	v  551 552 -553 -554 -555 -556 -557 558 559 560
0.02/0.04	v  -561 562 563 564 565 -566 -567 -568 -569 -570
0.02/0.04	v  -571 572 573 574 575 576 577 -578 579 -580
0.02/0.04	v  581 -582 -583 584 -585 586 -587 588 589 -590
0.02/0.04	v  -591 592 -593 -594 595 596 597 598 -599 -600
0.02/0.04	v  601 602 603 -604 605 -606 -607 608 -609 -610
0.02/0.04	v  -611 -612 613 614 615 -616 -617 618 -619 620
0.02/0.04	v  621 622 -623 -624 -625 -626 627 628 -629 630
0.02/0.04	v  -631 632 -633 -634 -635 636 637 -638 -639 -640
0.02/0.04	v  -641 -642 643 -644 -645 -646 -647 648 -649 650
0.02/0.04	v  0
0.02/0.04	c SearchSteps = 86147
0.02/0.04	c SolveTime = 0.04

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-3162520-1301700288/watcher-3162520-1301700288 -o /tmp/evaluation-result-3162520-1301700288/solver-3162520-1301700288 -C 2400 -W 1300 -M 7680 sparrow2011 HOME/instance-3162520-1301700288.cnf 579774364 

running on 2 cores: 1,3

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: 3.88 3.97 3.92 4/189 17687
/proc/meminfo: memFree=23115464/32951124 swapFree=67111524/67111528
[pid=17687] ppid=17685 vsize=12228 CPUtime=0 cores=1,3
/proc/17687/stat : 17687 (sparrow2011) R 17685 17687 17072 0 -1 4202496 436 0 0 0 0 0 0 0 25 0 1 0 281626775 12521472 375 33554432000 4194304 4568220 140736503084688 18446744073709551615 4242517 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/17687/statm: 3057 375 173 92 0 1441 0

[startup+0.0235631 s]
/proc/loadavg: 3.88 3.97 3.92 4/189 17687
/proc/meminfo: memFree=23115464/32951124 swapFree=67111524/67111528
[pid=17687] ppid=17685 vsize=12228 CPUtime=0.02 cores=1,3
/proc/17687/stat : 17687 (sparrow2011) R 17685 17687 17072 0 -1 4202496 436 0 0 0 2 0 0 0 25 0 1 0 281626775 12521472 375 33554432000 4194304 4568220 140736503084688 18446744073709551615 4239918 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/17687/statm: 3057 375 173 92 0 1441 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 12228

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

[startup+0.0235631 s]
/proc/loadavg: 3.88 3.97 3.92 4/189 17687
/proc/meminfo: memFree=23115464/32951124 swapFree=67111524/67111528
[pid=17687] ppid=17685 vsize=12228 CPUtime=0.02 cores=1,3
/proc/17687/stat : 17687 (sparrow2011) R 17685 17687 17072 0 -1 4202496 436 0 0 0 2 0 0 0 25 0 1 0 281626775 12521472 375 33554432000 4194304 4568220 140736503084688 18446744073709551615 4239918 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/17687/statm: 3057 375 173 92 0 1441 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 12228

Child status: 10
Real time (s): 0.048739
CPU time (s): 0.048991
CPU user time (s): 0.047992
CPU system time (s): 0.000999
CPU usage (%): 100.517
Max. virtual memory (cumulated for all children) (KiB): 12228

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.047992
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= 454
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 0.000999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node136 at 2011-04-02 01:24:48
IDJOB=3162520
IDBENCH=82751
IDSOLVER=1573
FILE ID=node136/3162520-1301700288
RUNJOBID= node136-1301698258-17092
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-S525571208-063.SATISFIABLE.cnf
COMMAND LINE= sparrow2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3162520-1301700288/watcher-3162520-1301700288 -o /tmp/evaluation-result-3162520-1301700288/solver-3162520-1301700288 -C 2400 -W 1300 -M 7680  sparrow2011 HOME/instance-3162520-1301700288.cnf 579774364

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

MD5SUM BENCH= 0d5db3c80640d96c57ce9e3d0b9dc725
RANDOM SEED=579774364

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:      23115620 kB
Buffers:        301664 kB
Cached:        9201504 kB
SwapCached:          4 kB
Active:        4232256 kB
Inactive:      5339840 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      23115620 kB
SwapTotal:    67111528 kB
SwapFree:     67111524 kB
Dirty:             636 kB
Writeback:           0 kB
AnonPages:       69072 kB
Mapped:          15992 kB
Slab:           199448 kB
PageTables:       5320 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   267924 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 01:24:48