Trace number 3157229

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
shortsattime2011 2011-03-02SAT 0.027994 0.0283301

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v800-c3408-S1536861174-069.SATISFIABLE.cnf
MD5SUMb9f30e687453978167416852673e8ddb
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.027994
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 

0.00/0.02	c 0 clauses are redundant and removed
0.00/0.02	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.02	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.02	c initial seed is 1772712713
0.00/0.02	c try=1 flip j=41938 walk=36670 seed 1772712730
0.00/0.02	c A solution is found
0.00/0.02	s SATISFIABLE
0.00/0.02	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 
0.00/0.02	v 0 
0.00/0.02	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-3157229-1301683472/watcher-3157229-1301683472 -o /tmp/evaluation-result-3157229-1301683472/solver-3157229-1301683472 -C 2400 -W 1300 -M 7680 shortsattime2011 HOME/instance-3157229-1301683472.cnf 1772705926 

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: 3.92 3.98 3.93 4/189 25963
/proc/meminfo: memFree=27203704/32950928 swapFree=67102716/67111528
[pid=25963] ppid=25961 vsize=1185980 CPUtime=0 cores=1,3
/proc/25963/stat : 25963 (shortsattime201) R 25961 25963 24979 0 -1 4202496 430 0 0 0 0 0 0 0 25 0 1 0 279944307 1214443520 370 33554432000 4194304 4230460 140736070460320 18446744073709551615 4222548 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25963/statm: 296495 377 117 9 0 293652 0

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

Child status: 10
Real time (s): 0.0283301
CPU time (s): 0.027994
CPU user time (s): 0.026995
CPU system time (s): 0.000999
CPU usage (%): 98.8138
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.026995
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= 454
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 0.001999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node148 at 2011-04-01 20:44:32
IDJOB=3157229
IDBENCH=82944
IDSOLVER=1566
FILE ID=node148/3157229-1301683472
RUNJOBID= node148-1301678135-24999
PBS_JOBID= 12840555
Free space on /tmp= 71292 MiB

SOLVER NAME= shortsattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v800-c3408-S1536861174-069.SATISFIABLE.cnf
COMMAND LINE= shortsattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3157229-1301683472/watcher-3157229-1301683472 -o /tmp/evaluation-result-3157229-1301683472/solver-3157229-1301683472 -C 2400 -W 1300 -M 7680  shortsattime2011 HOME/instance-3157229-1301683472.cnf 1772705926

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

MD5SUM BENCH= b9f30e687453978167416852673e8ddb
RANDOM SEED=1772705926

node148.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		: 2666.854
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	: 5333.70
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		: 2666.854
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	: 5332.75
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		: 2666.854
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		: 2666.854
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		: 2666.854
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		: 2666.854
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		: 2666.854
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	: 5332.82
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		: 2666.854
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:      27203984 kB
Buffers:        258872 kB
Cached:        5198484 kB
SwapCached:       4876 kB
Active:        1982712 kB
Inactive:      3540400 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      27203984 kB
SwapTotal:    67111528 kB
SwapFree:     67102716 kB
Dirty:            7784 kB
Writeback:           0 kB
AnonPages:       62984 kB
Mapped:          15192 kB
Slab:           160088 kB
PageTables:       5728 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:  3796772 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= 71284 MiB
End job on node148 at 2011-04-01 20:44:33