Trace number 3157386

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
shortsattime2011 2011-03-02SAT 0.025995 0.0259621

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v800-c3408-S91768321-029.SATISFIABLE.cnf
MD5SUMa8d280a0ad5a42e6946605bb6356e226
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.012998
Satisfiable
(Un)Satisfiability was proved
Number of variables800
Number of clauses3408
Sum of the clauses size10224
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 33408
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 clauses are redundant and removed
0.00/0.02	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.02	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.02	c initial seed is 704498284
0.00/0.02	c try=1 flip j=36992 walk=32548 seed 704498301
0.00/0.02	c A solution is found
0.00/0.02	s SATISFIABLE
0.00/0.02	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 -701 -702 -703 704 705 -706 -707 708 709 710 -711 712 713 714 715 -716 717 -718 -719 -720 -721 722 -723 -724 -725 -726 727 728 -729 730 731 732 733 -734 -735 -736 737 738 -739 740 -741 -742 743 -744 -745 -746 -747 -748 -749 750 751 -752 753 -754 -755 -756 757 -758 759 760 761 762 -763 764 765 766 -767 -768 769 770 -771 772 -773 774 775 -776 777 -778 -779 780 781 782 -783 -784 785 -786 787 -788 789 -790 791 792 -793 794 795 796 797 798 799 800 
0.00/0.02	v 0 
0.00/0.02	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-3157386-1301685233/watcher-3157386-1301685233 -o /tmp/evaluation-result-3157386-1301685233/solver-3157386-1301685233 -C 2400 -W 1300 -M 7680 shortsattime2011 HOME/instance-3157386-1301685233.cnf 704491497 

running on 2 cores: 4,6

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: 0.92 1.42 2.57 4/189 6470
/proc/meminfo: memFree=19823856/32951124 swapFree=67111528/67111528
[pid=6470] ppid=6468 vsize=1185980 CPUtime=0 cores=4,6
/proc/6470/stat : 6470 (shortsattime201) R 6468 6470 5470 0 -1 4202496 414 0 0 0 0 0 0 0 22 0 1 0 280123728 1214443520 354 33554432000 4194304 4230460 140735907558560 18446744073709551615 4222394 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/6470/statm: 296495 354 117 9 0 293652 0

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

Child status: 10
Real time (s): 0.0259621
CPU time (s): 0.025995
CPU user time (s): 0.024996
CPU system time (s): 0.000999
CPU usage (%): 100.127
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.024996
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= 3
involuntary context switches= 0

runsolver used 0 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node105 at 2011-04-01 21:13:53
IDJOB=3157386
IDBENCH=83101
IDSOLVER=1566
FILE ID=node105/3157386-1301685233
RUNJOBID= node105-1301685233-6429
PBS_JOBID= 12840591
Free space on /tmp= 71116 MiB

SOLVER NAME= shortsattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v800-c3408-S91768321-029.SATISFIABLE.cnf
COMMAND LINE= shortsattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3157386-1301685233/watcher-3157386-1301685233 -o /tmp/evaluation-result-3157386-1301685233/solver-3157386-1301685233 -C 2400 -W 1300 -M 7680  shortsattime2011 HOME/instance-3157386-1301685233.cnf 704491497

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

MD5SUM BENCH= a8d280a0ad5a42e6946605bb6356e226
RANDOM SEED=704491497

node105.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		: 2666.825
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	: 5333.65
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		: 2666.825
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		: 2666.825
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		: 2666.825
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		: 2666.825
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	: 5410.70
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		: 2666.825
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	: 5332.74
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		: 2666.825
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		: 2666.825
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:      19823888 kB
Buffers:        337016 kB
Cached:       12444852 kB
SwapCached:          0 kB
Active:        7595984 kB
Inactive:      5253028 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      19823888 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           31048 kB
Writeback:           0 kB
AnonPages:       66364 kB
Mapped:          15008 kB
Slab:           213708 kB
PageTables:       5120 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  3795688 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= 71108 MiB
End job on node105 at 2011-04-01 21:13:53