Trace number 3162761

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 0.047992 0.048837

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v700-c2982-S1863077195-052.SATISFIABLE.cnf
MD5SUM95ba8379aa2e59896c8d6334d91cdeab
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.010997
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 

0.04/0.04	c 
0.04/0.04	c UBCSAT version 1.2-sparrow2011 (based on BETA 1.2-b10) SAT11 Sparrow Build
0.04/0.04	c 
0.04/0.04	c http://www.satlib.org/ubcsat
0.04/0.04	c 
0.04/0.04	c ubcsat -h for help
0.04/0.04	c 
0.04/0.04	s SATISFIABLE
0.04/0.04	v  -1 -2 3 4 -5 -6 -7 8 9 10
0.04/0.04	v  -11 12 13 14 -15 16 17 18 -19 -20
0.04/0.04	v  21 22 23 24 25 -26 27 28 -29 30
0.04/0.04	v  31 32 -33 -34 -35 -36 37 -38 -39 40
0.04/0.04	v  41 -42 43 44 45 46 -47 48 49 50
0.04/0.04	v  51 52 53 -54 -55 -56 57 58 -59 60
0.04/0.04	v  61 62 63 -64 65 -66 67 68 69 -70
0.04/0.04	v  -71 -72 73 -74 -75 76 77 78 -79 -80
0.04/0.04	v  81 82 -83 -84 -85 86 87 88 -89 90
0.04/0.04	v  91 92 -93 -94 95 96 -97 98 99 -100
0.04/0.04	v  -101 102 103 104 -105 -106 -107 -108 -109 -110
0.04/0.04	v  -111 -112 113 -114 -115 -116 -117 -118 119 120
0.04/0.04	v  -121 122 123 124 125 126 127 -128 129 -130
0.04/0.04	v  -131 -132 133 -134 -135 136 -137 -138 139 140
0.04/0.04	v  141 -142 -143 144 145 -146 147 148 149 150
0.04/0.04	v  -151 -152 153 -154 -155 -156 157 -158 -159 160
0.04/0.04	v  161 -162 163 164 -165 -166 167 168 169 170
0.04/0.04	v  171 172 -173 174 -175 -176 177 178 -179 -180
0.04/0.04	v  181 182 183 184 185 -186 187 188 189 190
0.04/0.04	v  191 192 -193 194 195 196 -197 198 -199 -200
0.04/0.04	v  201 -202 203 -204 -205 -206 -207 208 209 210
0.04/0.04	v  -211 212 213 -214 -215 -216 217 -218 219 -220
0.04/0.04	v  -221 -222 -223 224 225 226 227 -228 229 -230
0.04/0.04	v  231 -232 233 234 -235 236 237 -238 -239 240
0.04/0.04	v  241 242 243 -244 245 -246 -247 -248 -249 250
0.04/0.04	v  251 -252 -253 -254 255 256 -257 258 259 -260
0.04/0.04	v  -261 262 263 -264 265 266 -267 -268 269 -270
0.04/0.04	v  271 272 -273 -274 -275 -276 277 278 -279 280
0.04/0.04	v  -281 282 -283 284 -285 286 -287 -288 -289 -290
0.04/0.04	v  -291 292 293 -294 295 -296 -297 298 299 300
0.04/0.04	v  301 302 303 304 305 -306 307 -308 309 310
0.04/0.04	v  -311 -312 -313 314 -315 -316 -317 -318 -319 -320
0.04/0.04	v  -321 322 323 324 325 -326 -327 328 329 330
0.04/0.04	v  -331 332 -333 -334 335 336 337 -338 339 -340
0.04/0.04	v  341 342 343 -344 -345 -346 -347 -348 -349 -350
0.04/0.04	v  -351 -352 353 -354 -355 -356 -357 358 359 -360
0.04/0.04	v  -361 -362 -363 364 -365 366 -367 -368 -369 370
0.04/0.04	v  371 -372 -373 374 -375 -376 377 -378 379 380
0.04/0.04	v  -381 -382 -383 -384 -385 -386 387 388 -389 -390
0.04/0.04	v  -391 -392 -393 -394 -395 -396 397 -398 -399 400
0.04/0.04	v  -401 402 403 -404 -405 406 407 408 -409 410
0.04/0.04	v  -411 412 413 414 415 -416 -417 418 -419 420
0.04/0.04	v  -421 -422 -423 424 425 426 427 428 -429 -430
0.04/0.04	v  -431 432 433 -434 435 -436 437 -438 439 440
0.04/0.04	v  441 442 -443 444 445 -446 -447 -448 449 -450
0.04/0.04	v  451 452 -453 454 -455 -456 457 458 459 460
0.04/0.04	v  461 -462 -463 -464 465 466 467 468 -469 470
0.04/0.04	v  -471 -472 -473 -474 -475 -476 -477 -478 479 -480
0.04/0.04	v  481 482 -483 484 485 -486 487 488 489 490
0.04/0.04	v  491 492 493 -494 -495 496 497 -498 -499 -500
0.04/0.04	v  -501 -502 -503 504 505 506 507 508 509 510
0.04/0.04	v  -511 -512 513 -514 515 516 517 518 519 -520
0.04/0.04	v  -521 522 523 524 525 -526 -527 528 529 -530
0.04/0.04	v  -531 -532 533 534 -535 536 537 -538 539 540
0.04/0.04	v  -541 -542 -543 544 -545 546 -547 -548 549 -550
0.04/0.04	v  551 552 -553 554 555 -556 -557 -558 -559 -560
0.04/0.04	v  -561 -562 -563 564 -565 566 567 -568 -569 -570
0.04/0.04	v  -571 572 -573 -574 -575 -576 -577 -578 579 580
0.04/0.04	v  581 -582 -583 -584 585 586 587 -588 -589 -590
0.04/0.04	v  591 -592 593 -594 -595 -596 597 -598 -599 600
0.04/0.04	v  601 -602 -603 -604 -605 -606 -607 608 -609 610
0.04/0.04	v  611 612 -613 -614 615 -616 617 -618 -619 620
0.04/0.04	v  621 622 623 624 625 626 627 628 629 -630
0.04/0.04	v  631 632 -633 634 635 -636 -637 638 639 -640
0.04/0.04	v  -641 642 643 644 -645 -646 647 648 649 650
0.04/0.04	v  -651 652 -653 654 655 -656 -657 658 659 -660
0.04/0.04	v  661 662 -663 -664 -665 -666 667 -668 669 670
0.04/0.04	v  671 -672 673 -674 675 -676 677 678 -679 -680
0.04/0.04	v  -681 -682 683 -684 685 -686 -687 -688 -689 690
0.04/0.04	v  691 -692 693 -694 -695 696 -697 698 699 -700
0.04/0.04	v  0
0.04/0.04	c SearchSteps = 86032
0.04/0.04	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-3162761-1301708676/watcher-3162761-1301708676 -o /tmp/evaluation-result-3162761-1301708676/solver-3162761-1301708676 -C 2400 -W 1300 -M 7680 sparrow2011 HOME/instance-3162761-1301708676.cnf 125469055 

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: 7.07 7.80 7.89 4/189 21691
/proc/meminfo: memFree=21110976/32951124 swapFree=67111528/67111528
[pid=21691] ppid=21689 vsize=12228 CPUtime=0 cores=1,3
/proc/21691/stat : 21691 (sparrow2011) R 21689 21691 21577 0 -1 4202496 442 0 0 0 0 0 0 0 25 0 1 0 263283486 12521472 381 33554432000 4194304 4568220 140734578672416 18446744073709551615 4239752 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/21691/statm: 3057 381 173 92 0 1441 0

[startup+0.0412139 s]
/proc/loadavg: 7.07 7.80 7.89 4/189 21691
/proc/meminfo: memFree=21110976/32951124 swapFree=67111528/67111528
[pid=21691] ppid=21689 vsize=12228 CPUtime=0.04 cores=1,3
/proc/21691/stat : 21691 (sparrow2011) R 21689 21691 21577 0 -1 4202496 442 0 0 0 4 0 0 0 25 0 1 0 263283486 12521472 381 33554432000 4194304 4568220 140734578672416 18446744073709551615 4243295 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/21691/statm: 3057 381 173 92 0 1441 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 12228

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

[startup+0.0412139 s]
/proc/loadavg: 7.07 7.80 7.89 4/189 21691
/proc/meminfo: memFree=21110976/32951124 swapFree=67111528/67111528
[pid=21691] ppid=21689 vsize=12228 CPUtime=0.04 cores=1,3
/proc/21691/stat : 21691 (sparrow2011) R 21689 21691 21577 0 -1 4202496 442 0 0 0 4 0 0 0 25 0 1 0 263283486 12521472 381 33554432000 4194304 4568220 140734578672416 18446744073709551615 4243295 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/21691/statm: 3057 381 173 92 0 1441 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 12228

Child status: 10
Real time (s): 0.048837
CPU time (s): 0.047992
CPU user time (s): 0.047992
CPU system time (s): 0
CPU usage (%): 98.2697
Max. virtual memory (cumulated for all children) (KiB): 12228

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

The end

Launcher Data 

Begin job on node147 at 2011-04-02 03:44:36
IDJOB=3162761
IDBENCH=82992
IDSOLVER=1573
FILE ID=node147/3162761-1301708676
RUNJOBID= node147-1301708675-21597
PBS_JOBID= 12840853
Free space on /tmp= 71508 MiB

SOLVER NAME= sparrow2011 sparrow2011_ubcsat1.2_2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v700-c2982-S1863077195-052.SATISFIABLE.cnf
COMMAND LINE= sparrow2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3162761-1301708676/watcher-3162761-1301708676 -o /tmp/evaluation-result-3162761-1301708676/solver-3162761-1301708676 -C 2400 -W 1300 -M 7680  sparrow2011 HOME/instance-3162761-1301708676.cnf 125469055

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

MD5SUM BENCH= 95ba8379aa2e59896c8d6334d91cdeab
RANDOM SEED=125469055

node147.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		: 2666.836
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	: 5333.67
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		: 2666.836
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		: 2666.836
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	: 5332.82
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		: 2666.836
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		: 2666.836
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	: 5332.82
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		: 2666.836
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	: 5332.76
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		: 2666.836
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		: 2666.836
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	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      21111008 kB
Buffers:        353976 kB
Cached:       11146676 kB
SwapCached:          0 kB
Active:        7145804 kB
Inactive:      4422720 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      21111008 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            1652 kB
Writeback:           0 kB
AnonPages:       68128 kB
Mapped:          15004 kB
Slab:           206908 kB
PageTables:       5300 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   267012 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= 71508 MiB
End job on node147 at 2011-04-02 03:44:36