Trace number 3426837

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
sattime2011 2011-03-02SAT 0.079987 0.0808081

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 benchmark0.011998
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 

0.04/0.08	c 0 clauses are redundant and removed
0.04/0.08	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.04/0.08	c 0 vars are fixed and 0 clauses are removed after lookahead
0.04/0.08	c initial seed is 772155243
0.04/0.08	c try=1 flip j=157639 walk=137733 seed 772155260
0.04/0.08	c A solution is found
0.04/0.08	s SATISFIABLE
0.04/0.08	v 1 -2 3 4 -5 6 7 8 9 -10 -11 12 13 -14 -15 -16 17 18 19 20 21 -22 23 24 25 -26 27 -28 29 30 -31 -32 33 -34 -35 36 -37 -38 39 -40 41 -42 -43 -44 -45 46 -47 -48 -49 50 -51 -52 -53 54 55 56 -57 -58 59 -60 -61 -62 -63 -64 65 66 67 68 -69 70 71 -72 73 -74 75 -76 -77 78 -79 -80 -81 -82 83 -84 -85 86 -87 88 -89 -90 -91 92 93 94 -95 96 -97 -98 -99 -100 101 -102 -103 -104 105 -106 107 108 109 110 111 -112 113 -114 -115 116 -117 118 -119 120 -121 122 -123 -124 -125 126 -127 -128 -129 130 -131 132 -133 134 135 -136 137 138 -139 140 141 142 -143 -144 -145 -146 -147 148 -149 150 151 152 -153 -154 -155 156 157 -158 159 160 161 -162 163 -164 165 -166 167 168 169 170 171 -172 -173 -174 -175 176 -177 178 179 -180 181 182 183 184 -185 -186 -187 188 -189 190 -191 192 193 -194 195 -196 -197 198 199 200 -201 -202 203 204 -205 206 -207 208 209 -210 211 212 213 214 215 216 217 218 -219 -220 -221 222 -223 -224 -225 226 -227 -228 229 230 -231 232 233 -234 235 -236 -237 238 239 -240 241 -242 243 244 245 -246 -247 -248 -249 250 251 252 -253 254 255 256 257 -258 259 260 -261 -262 -263 -264 265 -266 -267 -268 -269 270 271 -272 -273 -274 -275 276 -277 -278 279 280 -281 -282 -283 -284 -285 286 -287 -288 289 290 291 -292 -293 294 -295 296 297 298 299 300 301 -302 -303 304 305 -306 -307 -308 309 -310 311 312 -313 314 -315 -316 317 -318 319 -320 -321 -322 323 -324 -325 -326 327 328 -329 330 -331 -332 333 334 -335 -336 337 -338 339 -340 341 -342 343 344 345 346 347 -348 -349 350 -351 -352 -353 -354 -355 356 357 -358 359 360 -361 362 -363 364 365 -366 367 -368 -369 -370 371 372 -373 -374 375 -376 377 378 -379 380 381 -382 383 -384 -385 -386 387 388 389 -390 391 -392 393 394 395 -396 -397 398 -399 -400 401 402 -403 404 -405 -406 -407 -408 409 410 411 412 413 -414 -415 416 417 418 419 -420 421 422 423 424 425 -426 -427 -428 429 430 -431 -432 433 -434 435 -436 -437 -438 -439 440 -441 442 -443 444 -445 -446 447 448 -449 450 451 452 -453 -454 -455 456 457 458 459 -460 461 -462 -463 464 -465 466 -467 468 469 470 471 472 -473 -474 -475 -476 -477 -478 -479 -480 -481 482 -483 -484 -485 486 -487 488 -489 490 491 -492 -493 494 495 496 -497 -498 -499 -500 -501 -502 503 504 -505 -506 -507 -508 -509 510 -511 512 513 514 -515 516 517 -518 -519 -520 -521 -522 -523 524 -525 526 -527 528 -529 -530 -531 -532 533 534 -535 536 537 -538 -539 540 -541 542 -543 544 -545 -546 547 -548 -549 550 551 -552 -553 -554 555 -556 -557 558 559 560 561 -562 -563 564 565 -566 -567 568 -569 570 -571 572 -573 574 -575 -576 -577 -578 -579 580 -581 582 583 584 585 -586 587 -588 589 590 591 -592 593 -594 595 -596 597 598 -599 -600 601 -602 -603 604 -605 606 607 -608 609 -610 611 612 613 -614 615 616 -617 -618 -619 620 621 -622 623 -624 625 626 627 628 -629 -630 631 -632 -633 -634 -635 636 637 -638 -639 -640 -641 -642 643 -644 645 -646 647 648 649 650 
0.04/0.08	v 0 
0.04/0.08	c Done (mycputime is 0 seconds)

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 961)

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-3426837-1306773965/watcher-3426837-1306773965 -o /tmp/evaluation-result-3426837-1306773965/solver-3426837-1306773965 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3426837-1306773965.cnf 772151786 

running on 4 cores: 0,2,4,6

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): 5100 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 2.01 2.00 2/373 21535
/proc/meminfo: memFree=7649424/32951124 swapFree=37160472/67111528
[pid=21535] ppid=21533 vsize=1185848 CPUtime=0 cores=0,2,4,6
/proc/21535/stat : 21535 (sattime2011) R 21533 21535 20754 0 -1 4202496 408 0 0 0 0 0 0 0 25 0 1 0 788996957 1214308352 351 33554432000 4194304 4230460 140736485462704 18446744073709551615 4221535 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/21535/statm: 296462 351 117 9 0 293619 0

[startup+0.042246 s]
/proc/loadavg: 2.00 2.01 2.00 2/373 21535
/proc/meminfo: memFree=7649424/32951124 swapFree=37160472/67111528
[pid=21535] ppid=21533 vsize=1185848 CPUtime=0.04 cores=0,2,4,6
/proc/21535/stat : 21535 (sattime2011) R 21533 21535 20754 0 -1 4202496 408 0 0 0 4 0 0 0 25 0 1 0 788996957 1214308352 351 33554432000 4194304 4230460 140736485462704 18446744073709551615 4223405 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/21535/statm: 296462 351 117 9 0 293619 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1185848

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

[startup+0.042246 s]
/proc/loadavg: 2.00 2.01 2.00 2/373 21535
/proc/meminfo: memFree=7649424/32951124 swapFree=37160472/67111528
[pid=21535] ppid=21533 vsize=1185848 CPUtime=0.04 cores=0,2,4,6
/proc/21535/stat : 21535 (sattime2011) R 21533 21535 20754 0 -1 4202496 408 0 0 0 4 0 0 0 25 0 1 0 788996957 1214308352 351 33554432000 4194304 4230460 140736485462704 18446744073709551615 4223405 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/21535/statm: 296462 351 117 9 0 293619 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1185848

Child status: 10
Real time (s): 0.0808081
CPU time (s): 0.079987
CPU user time (s): 0.079987
CPU system time (s): 0
CPU usage (%): 98.9839
Max. virtual memory (cumulated for all children) (KiB): 1185848

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.079987
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= 412
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 0.006998 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node104 at 2011-05-30 18:46:05
IDJOB=3426837
IDBENCH=82809
IDSOLVER=1924
FILE ID=node104/3426837-1306773965
RUNJOBID= node104-1306761774-20772
PBS_JOBID= 13475020
Free space on /tmp= 59176 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v650-c2769-S1894319588-015.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3426837-1306773965/watcher-3426837-1306773965 -o /tmp/evaluation-result-3426837-1306773965/solver-3426837-1306773965 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3426837-1306773965.cnf 772151786

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

MD5SUM BENCH= c06f05996bba25e7e26c6579a49532fc
RANDOM SEED=772151786

node104.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		: 2666.855
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	: 5333.71
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		: 2666.855
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		: 2666.855
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	: 5332.67
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		: 2666.855
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	: 5332.80
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		: 2666.855
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	: 5293.18
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		: 2666.855
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		: 2666.855
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		: 2666.855
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	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:       7649580 kB
Buffers:        386112 kB
Cached:       22432464 kB
SwapCached:     152248 kB
Active:       18201116 kB
Inactive:      6395544 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:       7649580 kB
SwapTotal:    67111528 kB
SwapFree:     37160472 kB
Dirty:            7800 kB
Writeback:          28 kB
AnonPages:     1638500 kB
Mapped:          11152 kB
Slab:           550800 kB
PageTables:      89660 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 88909032 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= 59168 MiB
End job on node104 at 2011-05-30 18:46:05