Trace number 3153864

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 0.12598 0.130208

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v800-c3408-S890760919-021.SATISFIABLE.cnf
MD5SUM17e7946cc73ece994e4c474e2407ffbb
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.06099
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 

0.09/0.13	c 0 clauses are redundant and removed
0.09/0.13	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.09/0.13	c 0 vars are fixed and 0 clauses are removed after lookahead
0.09/0.13	c initial seed is 1685200774
0.09/0.13	c try=1 flip j=228936 walk=201970 seed 1685200791
0.09/0.13	c A solution is found
0.09/0.13	s SATISFIABLE
0.09/0.13	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 
0.09/0.13	v 0 
0.09/0.13	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-3153864-1301683425/watcher-3153864-1301683425 -o /tmp/evaluation-result-3153864-1301683425/solver-3153864-1301683425 -C 2400 -W 1300 -M 7680 sattime2011 HOME/instance-3153864-1301683425.cnf 1685197317 

running on 2 cores: 0,2

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: 4.03 4.01 3.93 5/189 6015
/proc/meminfo: memFree=18646464/32950928 swapFree=67111528/67111528
[pid=6015] ppid=6013 vsize=1185580 CPUtime=0 cores=0,2
/proc/6015/stat : 6015 (sattime2011) R 6013 6015 5139 0 -1 4202496 245 0 0 0 0 0 0 0 25 0 1 0 358573214 1214033920 186 33554432000 4194304 4230460 140736299130080 18446744073709551615 260905054917 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/6015/statm: 296395 190 102 9 0 293552 0

[startup+0.095543 s]
/proc/loadavg: 4.03 4.01 3.93 5/189 6015
/proc/meminfo: memFree=18646464/32950928 swapFree=67111528/67111528
[pid=6015] ppid=6013 vsize=1185980 CPUtime=0.09 cores=0,2
/proc/6015/stat : 6015 (sattime2011) R 6013 6015 5139 0 -1 4202496 449 0 0 0 9 0 0 0 25 0 1 0 358573214 1214443520 389 33554432000 4194304 4230460 140736299130080 18446744073709551615 4221664 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/6015/statm: 296495 389 117 9 0 293652 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1185980

[startup+0.10055 s]
/proc/loadavg: 4.03 4.01 3.93 5/189 6015
/proc/meminfo: memFree=18646464/32950928 swapFree=67111528/67111528
[pid=6015] ppid=6013 vsize=1185980 CPUtime=0.09 cores=0,2
/proc/6015/stat : 6015 (sattime2011) R 6013 6015 5139 0 -1 4202496 449 0 0 0 9 0 0 0 25 0 1 0 358573214 1214443520 389 33554432000 4194304 4230460 140736299130080 18446744073709551615 4219786 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/6015/statm: 296495 389 117 9 0 293652 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1185980

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

Child status: 10
Real time (s): 0.130208
CPU time (s): 0.12598
CPU user time (s): 0.12598
CPU system time (s): 0
CPU usage (%): 96.7528
Max. virtual memory (cumulated for all children) (KiB): 1185980

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.12598
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= 453
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 0.001999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node116 at 2011-04-01 20:43:45
IDJOB=3153864
IDBENCH=82971
IDSOLVER=1563
FILE ID=node116/3153864-1301683425
RUNJOBID= node116-1301678139-5157
PBS_JOBID= 12840581
Free space on /tmp= 70716 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v800-c3408-S890760919-021.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3153864-1301683425/watcher-3153864-1301683425 -o /tmp/evaluation-result-3153864-1301683425/solver-3153864-1301683425 -C 2400 -W 1300 -M 7680  sattime2011 HOME/instance-3153864-1301683425.cnf 1685197317

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

MD5SUM BENCH= 17e7946cc73ece994e4c474e2407ffbb
RANDOM SEED=1685197317

node116.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		: 2666.826
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		: 2666.826
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		: 2666.826
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	: 5332.75
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		: 2666.826
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		: 2666.826
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	: 5332.77
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		: 2666.826
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		: 2666.826
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		: 2666.826
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:      18646620 kB
Buffers:        379708 kB
Cached:       13547472 kB
SwapCached:          0 kB
Active:        9299572 kB
Inactive:      4697076 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      18646620 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            8184 kB
Writeback:           0 kB
AnonPages:       69352 kB
Mapped:          15524 kB
Slab:           243800 kB
PageTables:       5324 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:  3801656 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= 70708 MiB
End job on node116 at 2011-04-01 20:43:46