Trace number 3169285

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
shortsattime+ 2011-03-02SAT 0.075988 0.075931

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v700-c2982-S171669125-021.SATISFIABLE.cnf
MD5SUM9649b9e4fa8d251c4c59f8783cbf0b60
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.008998
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 

0.00/0.07	c 0 clauses are redundant and removed
0.00/0.07	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.07	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.07	c initial seed is 1107269748
0.00/0.07	c try=1 flip j=169717 walk=154096 seed 1107269765
0.00/0.07	c A solution is found
0.00/0.07	s SATISFIABLE
0.00/0.07	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 -651 652 653 -654 -655 -656 657 658 659 660 -661 662 -663 -664 665 -666 -667 -668 -669 -670 671 672 673 674 675 676 -677 -678 -679 -680 -681 -682 683 -684 685 -686 687 688 -689 690 -691 692 693 -694 695 696 -697 -698 -699 700 
0.00/0.07	v 0 
0.00/0.07	c Done (mycputime is 0 seconds)

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-3169285-1301695662/watcher-3169285-1301695662 -o /tmp/evaluation-result-3169285-1301695662/solver-3169285-1301695662 -C 2400 -W 1300 -M 7680 shortsattime+ HOME/instance-3169285-1301695662.cnf 1107269521 

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: 3.81 3.95 3.91 4/189 23018
/proc/meminfo: memFree=20242280/32950928 swapFree=67111528/67111528
[pid=23018] ppid=23016 vsize=881160 CPUtime=0 cores=1,3
/proc/23018/stat : 23018 (shortsattime+) R 23016 23018 22242 0 -1 4202496 375 0 0 0 0 0 0 0 25 0 1 0 359796894 902307840 316 33554432000 4194304 4228340 140735844412992 18446744073709551615 4217323 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23018/statm: 220290 316 116 9 0 217447 0

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

Child status: 10
Real time (s): 0.075931
CPU time (s): 0.075988
CPU user time (s): 0.075988
CPU system time (s): 0
CPU usage (%): 100.075
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.075988
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= 379
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 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node114 at 2011-04-02 00:07:42
IDJOB=3169285
IDBENCH=82903
IDSOLVER=1578
FILE ID=node114/3169285-1301695662
RUNJOBID= node114-1301690421-22262
PBS_JOBID= 12840722
Free space on /tmp= 70288 MiB

SOLVER NAME= shortsattime+ 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v700-c2982-S171669125-021.SATISFIABLE.cnf
COMMAND LINE= shortsattime+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3169285-1301695662/watcher-3169285-1301695662 -o /tmp/evaluation-result-3169285-1301695662/solver-3169285-1301695662 -C 2400 -W 1300 -M 7680  shortsattime+ HOME/instance-3169285-1301695662.cnf 1107269521

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

MD5SUM BENCH= 9649b9e4fa8d251c4c59f8783cbf0b60
RANDOM SEED=1107269521

node114.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		: 2666.848
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	: 5333.69
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		: 2666.848
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	: 5226.15
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		: 2666.848
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		: 2666.848
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	: 5332.73
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		: 2666.848
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		: 2666.848
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		: 2666.848
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	: 5332.74
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		: 2666.848
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:     32950928 kB
MemFree:      20242436 kB
Buffers:        373996 kB
Cached:       11952084 kB
SwapCached:          0 kB
Active:        8091784 kB
Inactive:      4305704 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      20242436 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           24124 kB
Writeback:           0 kB
AnonPages:       71044 kB
Mapped:          15340 kB
Slab:           246600 kB
PageTables:       5828 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:  2884076 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= 70280 MiB
End job on node114 at 2011-04-02 00:07:42