Trace number 3169926

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
sattime+ 2011-03-02SAT 0.180972 0.181333

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v800-c3408-S1536861174-069.SATISFIABLE.cnf
MD5SUMb9f30e687453978167416852673e8ddb
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.027994
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 

0.10/0.18	c 0 clauses are redundant and removed
0.10/0.18	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.10/0.18	c 0 vars are fixed and 0 clauses are removed after lookahead
0.10/0.18	c initial seed is 696443901
0.10/0.18	c try=1 flip j=399249 walk=359008 seed 696443918
0.10/0.18	c A solution is found
0.10/0.18	s SATISFIABLE
0.10/0.18	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 
0.10/0.18	v 0 
0.10/0.18	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: 977)

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-3169926-1307642056/watcher-3169926-1307642056 -o /tmp/evaluation-result-3169926-1307642056/solver-3169926-1307642056 -C 2400 -W 1300 -M 7680 sattime+ HOME/instance-3169926-1307642056.cnf 696443788 

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: 3.91 3.97 3.85 4/189 7163
/proc/meminfo: memFree=32124544/32951124 swapFree=67051740/67111528
[pid=7163] ppid=7161 vsize=881160 CPUtime=0 cores=4,6
/proc/7163/stat : 7163 (sattime+) R 7161 7163 4447 0 -1 4202496 391 0 0 0 0 0 0 0 25 0 1 0 875803538 902307840 333 33554432000 4194304 4228340 140733789091760 18446744073709551615 4217603 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/7163/statm: 220290 333 116 9 0 217447 0

[startup+0.0818789 s]
/proc/loadavg: 3.91 3.97 3.85 4/189 7163
/proc/meminfo: memFree=32124544/32951124 swapFree=67051740/67111528
[pid=7163] ppid=7161 vsize=881160 CPUtime=0.08 cores=4,6
/proc/7163/stat : 7163 (sattime+) R 7161 7163 4447 0 -1 4202496 391 0 0 0 8 0 0 0 25 0 1 0 875803538 902307840 333 33554432000 4194304 4228340 140733789091760 18446744073709551615 4217565 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/7163/statm: 220290 333 116 9 0 217447 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 881160

[startup+0.100881 s]
/proc/loadavg: 3.91 3.97 3.85 4/189 7163
/proc/meminfo: memFree=32124544/32951124 swapFree=67051740/67111528
[pid=7163] ppid=7161 vsize=881160 CPUtime=0.1 cores=4,6
/proc/7163/stat : 7163 (sattime+) R 7161 7163 4447 0 -1 4202496 391 0 0 0 10 0 0 0 25 0 1 0 875803538 902307840 333 33554432000 4194304 4228340 140733789091760 18446744073709551615 4218738 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/7163/statm: 220290 333 116 9 0 217447 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 881160

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

Child status: 10
Real time (s): 0.181333
CPU time (s): 0.180972
CPU user time (s): 0.180972
CPU system time (s): 0
CPU usage (%): 99.8009
Max. virtual memory (cumulated for all children) (KiB): 881160

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.180972
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= 396
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 0.002999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node138 at 2011-06-09 19:54:16
IDJOB=3169926
IDBENCH=82944
IDSOLVER=1579
FILE ID=node138/3169926-1307642056
RUNJOBID= node138-1307642020-7067
PBS_JOBID= 13549354
Free space on /tmp= 74084 MiB

SOLVER NAME= sattime+ 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v800-c3408-S1536861174-069.SATISFIABLE.cnf
COMMAND LINE= sattime+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3169926-1307642056/watcher-3169926-1307642056 -o /tmp/evaluation-result-3169926-1307642056/solver-3169926-1307642056 -C 2400 -W 1300 -M 7680  sattime+ HOME/instance-3169926-1307642056.cnf 696443788

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

MD5SUM BENCH= b9f30e687453978167416852673e8ddb
RANDOM SEED=696443788

node138.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		: 2666.854
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	: 5333.70
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		: 2666.854
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		: 2666.854
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		: 2666.854
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		: 2666.854
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	: 5332.80
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		: 2666.854
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		: 2666.854
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		: 2666.854
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:      32125096 kB
Buffers:        200132 kB
Cached:         411356 kB
SwapCached:      13344 kB
Active:         387100 kB
Inactive:       248356 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      32125096 kB
SwapTotal:    67111528 kB
SwapFree:     67051740 kB
Dirty:           19132 kB
Writeback:           0 kB
AnonPages:       21660 kB
Mapped:           9328 kB
Slab:           125444 kB
PageTables:       5428 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  2884960 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= 74076 MiB
End job on node138 at 2011-06-09 19:54:16