Trace number 3154253

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 0.198969 0.201856

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v800-c3408-S1831593686-090.SATISFIABLE.cnf
MD5SUM7dd850f670e1c9ea63e995ef24dddf5f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.06399
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 

0.19/0.20	c 0 clauses are redundant and removed
0.19/0.20	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.19/0.20	c 0 vars are fixed and 0 clauses are removed after lookahead
0.19/0.20	c initial seed is 243414673
0.19/0.20	c try=1 flip j=402106 walk=359172 seed 243414690
0.19/0.20	c A solution is found
0.19/0.20	s SATISFIABLE
0.19/0.20	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 
0.19/0.20	v 0 
0.19/0.20	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-3154253-1301682053/watcher-3154253-1301682053 -o /tmp/evaluation-result-3154253-1301682053/solver-3154253-1301682053 -C 2400 -W 1300 -M 7680 sattime HOME/instance-3154253-1301682053.cnf 243414673 

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: 3.95 4.00 3.91 5/189 10958
/proc/meminfo: memFree=21799252/32950928 swapFree=67111528/67111528
[pid=10958] ppid=10956 vsize=990400 CPUtime=0 cores=0,2
/proc/10958/stat : 10958 (sattime) R 10956 10958 10450 0 -1 4202496 314 0 0 0 0 0 0 0 25 0 1 0 279804945 1014169600 256 33554432000 4194304 4228548 140737186852432 18446744073709551615 4207080 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/10958/statm: 247600 256 104 9 0 244757 0

[startup+0.068284 s]
/proc/loadavg: 3.95 4.00 3.91 5/189 10958
/proc/meminfo: memFree=21799252/32950928 swapFree=67111528/67111528
[pid=10958] ppid=10956 vsize=990668 CPUtime=0.06 cores=0,2
/proc/10958/stat : 10958 (sattime) R 10956 10958 10450 0 -1 4202496 432 0 0 0 6 0 0 0 25 0 1 0 279804945 1014444032 373 33554432000 4194304 4228548 140737186852432 18446744073709551615 4218506 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/10958/statm: 247667 373 116 9 0 244824 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 990668

[startup+0.101215 s]
/proc/loadavg: 3.95 4.00 3.91 5/189 10958
/proc/meminfo: memFree=21799252/32950928 swapFree=67111528/67111528
[pid=10958] ppid=10956 vsize=990668 CPUtime=0.09 cores=0,2
/proc/10958/stat : 10958 (sattime) R 10956 10958 10450 0 -1 4202496 432 0 0 0 9 0 0 0 25 0 1 0 279804945 1014444032 373 33554432000 4194304 4228548 140737186852432 18446744073709551615 4217079 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/10958/statm: 247667 373 116 9 0 244824 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 990668

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

[startup+0.201193 s]
/proc/loadavg: 3.95 4.00 3.91 5/189 10958
/proc/meminfo: memFree=21799252/32950928 swapFree=67111528/67111528
[pid=10958] ppid=10956 vsize=990672 CPUtime=0.19 cores=0,2
/proc/10958/stat : 10958 (sattime) R 10956 10958 10450 0 -1 4202496 433 0 0 0 19 0 0 0 25 0 1 0 279804945 1014448128 374 33554432000 4194304 4228548 140737186852432 18446744073709551615 274473967360 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/10958/statm: 247668 374 116 9 0 244825 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 990672

Child status: 10
Real time (s): 0.201856
CPU time (s): 0.198969
CPU user time (s): 0.198969
CPU system time (s): 0
CPU usage (%): 98.5697
Max. virtual memory (cumulated for all children) (KiB): 990672

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.198969
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= 0

runsolver used 0.002999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node125 at 2011-04-01 20:20:53
IDJOB=3154253
IDBENCH=82760
IDSOLVER=1564
FILE ID=node125/3154253-1301682053
RUNJOBID= node125-1301678141-10468
PBS_JOBID= 12840572
Free space on /tmp= 71688 MiB

SOLVER NAME= sattime 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v800-c3408-S1831593686-090.SATISFIABLE.cnf
COMMAND LINE= sattime BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3154253-1301682053/watcher-3154253-1301682053 -o /tmp/evaluation-result-3154253-1301682053/solver-3154253-1301682053 -C 2400 -W 1300 -M 7680  sattime HOME/instance-3154253-1301682053.cnf 243414673

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

MD5SUM BENCH= 7dd850f670e1c9ea63e995ef24dddf5f
RANDOM SEED=243414673

node125.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		: 2666.828
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		: 2666.828
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	: 5266.55
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		: 2666.828
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	: 5332.84
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		: 2666.828
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	: 5332.74
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		: 2666.828
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	: 5332.82
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		: 2666.828
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		: 2666.828
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		: 2666.828
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:      21799532 kB
Buffers:        347224 kB
Cached:       10372208 kB
SwapCached:          0 kB
Active:        6786252 kB
Inactive:      4107192 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      21799532 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            7800 kB
Writeback:           0 kB
AnonPages:      173800 kB
Mapped:          15312 kB
Slab:           194512 kB
PageTables:       5452 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:  3282816 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= 71680 MiB
End job on node125 at 2011-04-01 20:20:53