Trace number 3154351

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 0.162974 0.16305

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v800-c3408-S456969343-019.SATISFIABLE.cnf
MD5SUM957c55bb21add5f7b2abfbda860d1a95
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.05599
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 

0.09/0.16	c 0 clauses are redundant and removed
0.09/0.16	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.09/0.16	c 0 vars are fixed and 0 clauses are removed after lookahead
0.09/0.16	c initial seed is 472390005
0.09/0.16	c try=1 flip j=354140 walk=317665 seed 472390022
0.09/0.16	c A solution is found
0.09/0.16	s SATISFIABLE
0.09/0.16	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 
0.09/0.16	v 0 
0.09/0.16	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-3154351-1301683246/watcher-3154351-1301683246 -o /tmp/evaluation-result-3154351-1301683246/solver-3154351-1301683246 -C 2400 -W 1300 -M 7680 sattime HOME/instance-3154351-1301683246.cnf 472390005 

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: 3.96 4.00 3.79 4/189 30418
/proc/meminfo: memFree=21902316/32951124 swapFree=67111528/67111528
[pid=30418] ppid=30416 vsize=990668 CPUtime=0 cores=1,3
/proc/30418/stat : 30418 (sattime) R 30416 30418 29837 0 -1 4202496 431 0 0 0 0 0 0 0 25 0 1 0 279927401 1014444032 372 33554432000 4194304 4228548 140733195470368 18446744073709551615 4216654 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30418/statm: 247667 372 116 9 0 244824 0

[startup+0.00849902 s]
/proc/loadavg: 3.96 4.00 3.79 4/189 30418
/proc/meminfo: memFree=21902316/32951124 swapFree=67111528/67111528
[pid=30418] ppid=30416 vsize=990668 CPUtime=0 cores=1,3
/proc/30418/stat : 30418 (sattime) R 30416 30418 29837 0 -1 4202496 431 0 0 0 0 0 0 0 25 0 1 0 279927401 1014444032 372 33554432000 4194304 4228548 140733195470368 18446744073709551615 4219006 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30418/statm: 247667 372 116 9 0 244824 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 990668

[startup+0.100517 s]
/proc/loadavg: 3.96 4.00 3.79 4/189 30418
/proc/meminfo: memFree=21902316/32951124 swapFree=67111528/67111528
[pid=30418] ppid=30416 vsize=990668 CPUtime=0.09 cores=1,3
/proc/30418/stat : 30418 (sattime) R 30416 30418 29837 0 -1 4202496 431 0 0 0 9 0 0 0 25 0 1 0 279927401 1014444032 372 33554432000 4194304 4228548 140733195470368 18446744073709551615 4217472 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30418/statm: 247667 372 116 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

Child status: 10
Real time (s): 0.16305
CPU time (s): 0.162974
CPU user time (s): 0.161975
CPU system time (s): 0.000999
CPU usage (%): 99.9534
Max. virtual memory (cumulated for all children) (KiB): 990668

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.161975
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= 435
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 0.002999 second system time

The end

Launcher Data 

Begin job on node101 at 2011-04-01 20:40:46
IDJOB=3154351
IDBENCH=82858
IDSOLVER=1564
FILE ID=node101/3154351-1301683246
RUNJOBID= node101-1301680629-29857
PBS_JOBID= 12840596
Free space on /tmp= 71708 MiB

SOLVER NAME= sattime 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v800-c3408-S456969343-019.SATISFIABLE.cnf
COMMAND LINE= sattime BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3154351-1301683246/watcher-3154351-1301683246 -o /tmp/evaluation-result-3154351-1301683246/solver-3154351-1301683246 -C 2400 -W 1300 -M 7680  sattime HOME/instance-3154351-1301683246.cnf 472390005

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

MD5SUM BENCH= 957c55bb21add5f7b2abfbda860d1a95
RANDOM SEED=472390005

node101.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		: 2666.841
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	: 5333.68
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		: 2666.841
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	: 5226.07
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		: 2666.841
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	: 5332.77
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		: 2666.841
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	: 5332.83
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		: 2666.841
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	: 5332.74
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		: 2666.841
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		: 2666.841
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		: 2666.841
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      21902348 kB
Buffers:        320696 kB
Cached:       10405408 kB
SwapCached:          0 kB
Active:        7128440 kB
Inactive:      3667424 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      21902348 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           31980 kB
Writeback:           0 kB
AnonPages:       69808 kB
Mapped:          15336 kB
Slab:           189896 kB
PageTables:       5456 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  3210816 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= 71700 MiB
End job on node101 at 2011-04-01 20:40:47