Trace number 3153914

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 0.58791 0.589196

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v800-c3408-S902286199-017.SATISFIABLE.cnf
MD5SUM598e5ac0f35fb3d353f44669087059bc
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.035993
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 

0.49/0.58	c 0 clauses are redundant and removed
0.49/0.58	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.49/0.58	c 0 vars are fixed and 0 clauses are removed after lookahead
0.49/0.58	c initial seed is 1309767927
0.49/0.58	c try=1 flip j=1260364 walk=1116084 seed 1309767944
0.49/0.58	c A solution is found
0.49/0.58	s SATISFIABLE
0.49/0.58	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 
0.49/0.58	v 0 
0.49/0.58	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-3153914-1301683880/watcher-3153914-1301683880 -o /tmp/evaluation-result-3153914-1301683880/solver-3153914-1301683880 -C 2400 -W 1300 -M 7680 sattime2011 HOME/instance-3153914-1301683880.cnf 1309764470 

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: 3.99 4.00 3.93 5/189 27034
/proc/meminfo: memFree=22650324/32950928 swapFree=67111528/67111528
[pid=27034] ppid=27032 vsize=1185848 CPUtime=0 cores=1,3
/proc/27034/stat : 27034 (sattime2011) R 27032 27034 25900 0 -1 4202496 376 0 0 0 0 0 0 0 25 0 1 0 358618701 1214308352 316 33554432000 4194304 4230460 140736683281776 18446744073709551615 4205945 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27034/statm: 296462 317 117 9 0 293619 0

[startup+0.0361281 s]
/proc/loadavg: 3.99 4.00 3.93 5/189 27034
/proc/meminfo: memFree=22650324/32950928 swapFree=67111528/67111528
[pid=27034] ppid=27032 vsize=1185980 CPUtime=0.03 cores=1,3
/proc/27034/stat : 27034 (sattime2011) R 27032 27034 25900 0 -1 4202496 449 0 0 0 3 0 0 0 25 0 1 0 358618701 1214443520 389 33554432000 4194304 4230460 140736683281776 18446744073709551615 4199929 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27034/statm: 296495 389 117 9 0 293652 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1185980

[startup+0.101112 s]
/proc/loadavg: 3.99 4.00 3.93 5/189 27034
/proc/meminfo: memFree=22650324/32950928 swapFree=67111528/67111528
[pid=27034] ppid=27032 vsize=1185980 CPUtime=0.09 cores=1,3
/proc/27034/stat : 27034 (sattime2011) R 27032 27034 25900 0 -1 4202496 449 0 0 0 9 0 0 0 25 0 1 0 358618701 1214443520 389 33554432000 4194304 4230460 140736683281776 18446744073709551615 4217216 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27034/statm: 296495 389 117 9 0 293652 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1185980

[startup+0.301075 s]
/proc/loadavg: 3.99 4.00 3.93 5/189 27034
/proc/meminfo: memFree=22650324/32950928 swapFree=67111528/67111528
[pid=27034] ppid=27032 vsize=1185980 CPUtime=0.29 cores=1,3
/proc/27034/stat : 27034 (sattime2011) R 27032 27034 25900 0 -1 4202496 449 0 0 0 29 0 0 0 25 0 1 0 358618701 1214443520 389 33554432000 4194304 4230460 140736683281776 18446744073709551615 4221584 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27034/statm: 296495 389 117 9 0 293652 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1185980

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

[startup+0.501037 s]
/proc/loadavg: 3.99 4.00 3.93 5/189 27034
/proc/meminfo: memFree=22650324/32950928 swapFree=67111528/67111528
[pid=27034] ppid=27032 vsize=1185980 CPUtime=0.49 cores=1,3
/proc/27034/stat : 27034 (sattime2011) R 27032 27034 25900 0 -1 4202496 449 0 0 0 49 0 0 0 25 0 1 0 358618701 1214443520 389 33554432000 4194304 4230460 140736683281776 18446744073709551615 4216930 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27034/statm: 296495 389 117 9 0 293652 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 1185980

Child status: 10
Real time (s): 0.589196
CPU time (s): 0.58791
CPU user time (s): 0.584911
CPU system time (s): 0.002999
CPU usage (%): 99.7817
Max. virtual memory (cumulated for all children) (KiB): 1185980

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.584911
system time used= 0.002999
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= 3

runsolver used 0.002999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node113 at 2011-04-01 20:51:20
IDJOB=3153914
IDBENCH=83021
IDSOLVER=1563
FILE ID=node113/3153914-1301683880
RUNJOBID= node113-1301678139-25920
PBS_JOBID= 12840584
Free space on /tmp= 70044 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v800-c3408-S902286199-017.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3153914-1301683880/watcher-3153914-1301683880 -o /tmp/evaluation-result-3153914-1301683880/solver-3153914-1301683880 -C 2400 -W 1300 -M 7680  sattime2011 HOME/instance-3153914-1301683880.cnf 1309764470

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

MD5SUM BENCH= 598e5ac0f35fb3d353f44669087059bc
RANDOM SEED=1309764470

node113.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		: 2666.846
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	: 5333.69
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		: 2666.846
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	: 5332.76
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		: 2666.846
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	: 5332.74
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		: 2666.846
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		: 2666.846
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		: 2666.846
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		: 2666.846
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	: 5332.83
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		: 2666.846
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	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      22650356 kB
Buffers:        295232 kB
Cached:        9636756 kB
SwapCached:          0 kB
Active:        6232852 kB
Inactive:      3769912 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      22650356 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            7796 kB
Writeback:           0 kB
AnonPages:       70448 kB
Mapped:          15316 kB
Slab:           233320 kB
PageTables:       5668 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:  3799952 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= 70040 MiB
End job on node113 at 2011-04-01 20:51:21