Trace number 3154464

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 0.462929 0.463722

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 

0.40/0.46	c 0 clauses are redundant and removed
0.40/0.46	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.40/0.46	c 0 vars are fixed and 0 clauses are removed after lookahead
0.40/0.46	c initial seed is 800617362
0.40/0.46	c try=1 flip j=1019465 walk=907189 seed 800617379
0.40/0.46	c A solution is found
0.40/0.46	s SATISFIABLE
0.40/0.46	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 
0.40/0.46	v 0 
0.40/0.46	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-3154464-1301684662/watcher-3154464-1301684662 -o /tmp/evaluation-result-3154464-1301684662/solver-3154464-1301684662 -C 2400 -W 1300 -M 7680 sattime HOME/instance-3154464-1301684662.cnf 800617362 

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: 1.77 2.59 3.35 5/189 10313
/proc/meminfo: memFree=24041872/32951124 swapFree=67111524/67111528
[pid=10313] ppid=10310 vsize=990668 CPUtime=0 cores=1,3
/proc/10313/stat : 10313 (sattime) R 10310 10313 9013 0 -1 4202496 432 0 0 0 0 0 0 0 25 0 1 0 280064396 1014444032 372 33554432000 4194304 4228548 140736627875360 18446744073709551615 4216654 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/10313/statm: 247667 372 116 9 0 244824 0

[startup+0.061971 s]
/proc/loadavg: 1.77 2.59 3.35 5/189 10313
/proc/meminfo: memFree=24041872/32951124 swapFree=67111524/67111528
[pid=10313] ppid=10310 vsize=990668 CPUtime=0.06 cores=1,3
/proc/10313/stat : 10313 (sattime) R 10310 10313 9013 0 -1 4202496 432 0 0 0 6 0 0 0 25 0 1 0 280064396 1014444032 372 33554432000 4194304 4228548 140736627875360 18446744073709551615 4217001 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/10313/statm: 247667 372 116 9 0 244824 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 990668

[startup+0.100951 s]
/proc/loadavg: 1.77 2.59 3.35 5/189 10313
/proc/meminfo: memFree=24041872/32951124 swapFree=67111524/67111528
[pid=10313] ppid=10310 vsize=990668 CPUtime=0.1 cores=1,3
/proc/10313/stat : 10313 (sattime) R 10310 10313 9013 0 -1 4202496 432 0 0 0 10 0 0 0 25 0 1 0 280064396 1014444032 372 33554432000 4194304 4228548 140736627875360 18446744073709551615 4217291 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/10313/statm: 247667 372 116 9 0 244824 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 990668

[startup+0.300915 s]
/proc/loadavg: 1.77 2.59 3.35 5/189 10313
/proc/meminfo: memFree=24041872/32951124 swapFree=67111524/67111528
[pid=10313] ppid=10310 vsize=990668 CPUtime=0.3 cores=1,3
/proc/10313/stat : 10313 (sattime) R 10310 10313 9013 0 -1 4202496 432 0 0 0 30 0 0 0 25 0 1 0 280064396 1014444032 372 33554432000 4194304 4228548 140736627875360 18446744073709551615 4217093 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/10313/statm: 247667 372 116 9 0 244824 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 990668

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

[startup+0.400896 s]
/proc/loadavg: 1.77 2.59 3.35 5/189 10313
/proc/meminfo: memFree=24041872/32951124 swapFree=67111524/67111528
[pid=10313] ppid=10310 vsize=990668 CPUtime=0.4 cores=1,3
/proc/10313/stat : 10313 (sattime) R 10310 10313 9013 0 -1 4202496 432 0 0 0 40 0 0 0 25 0 1 0 280064396 1014444032 372 33554432000 4194304 4228548 140736627875360 18446744073709551615 4219115 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/10313/statm: 247667 372 116 9 0 244824 0
Current children cumulated CPU time (s) 0.4
Current children cumulated vsize (KiB) 990668

Child status: 10
Real time (s): 0.463722
CPU time (s): 0.462929
CPU user time (s): 0.462929
CPU system time (s): 0
CPU usage (%): 99.829
Max. virtual memory (cumulated for all children) (KiB): 990668

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.462929
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= 436
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 0.002999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node134 at 2011-04-01 21:04:22
IDJOB=3154464
IDBENCH=82971
IDSOLVER=1564
FILE ID=node134/3154464-1301684662
RUNJOBID= node134-1301684662-10226
PBS_JOBID= 12840563
Free space on /tmp= 71020 MiB

SOLVER NAME= sattime 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v800-c3408-S890760919-021.SATISFIABLE.cnf
COMMAND LINE= sattime BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3154464-1301684662/watcher-3154464-1301684662 -o /tmp/evaluation-result-3154464-1301684662/solver-3154464-1301684662 -C 2400 -W 1300 -M 7680  sattime HOME/instance-3154464-1301684662.cnf 800617362

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

MD5SUM BENCH= 17e7946cc73ece994e4c474e2407ffbb
RANDOM SEED=800617362

node134.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		: 2666.831
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	: 5333.66
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		: 2666.831
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	: 5332.67
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		: 2666.831
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	: 5332.83
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		: 2666.831
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	: 7186.06
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		: 2666.831
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		: 2666.831
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		: 2666.831
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		: 2666.831
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	: 5332.84
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      24042284 kB
Buffers:        294552 kB
Cached:        8289396 kB
SwapCached:          4 kB
Active:        4100468 kB
Inactive:      4549128 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      24042284 kB
SwapTotal:    67111528 kB
SwapFree:     67111524 kB
Dirty:           25076 kB
Writeback:           0 kB
AnonPages:       65788 kB
Mapped:          15024 kB
Slab:           194724 kB
PageTables:       5244 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  2204508 kB
VmallocTotal: 34359738367 kB
VmallocUsed:     33868 kB
VmallocChunk: 34359703231 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 71012 MiB
End job on node134 at 2011-04-01 21:04:23