Trace number 3157349

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 0.069989 0.0703279

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v800-c3408-S846876765-035.SATISFIABLE.cnf
MD5SUM0d5f032713ed63748b72ef45ba69a269
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 

0.03/0.07	c 0 clauses are redundant and removed
0.03/0.07	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.03/0.07	c 0 vars are fixed and 0 clauses are removed after lookahead
0.03/0.07	c initial seed is 776688831
0.03/0.07	c try=1 flip j=125390 walk=109267 seed 776688848
0.03/0.07	c A solution is found
0.03/0.07	s SATISFIABLE
0.03/0.07	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 
0.03/0.07	v 0 
0.03/0.07	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-3157349-1301685088/watcher-3157349-1301685088 -o /tmp/evaluation-result-3157349-1301685088/solver-3157349-1301685088 -C 2400 -W 1300 -M 7680 shortsattime2011 HOME/instance-3157349-1301685088.cnf 776682044 

running on 2 cores: 5,7

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: 1.15 2.51 3.32 4/189 4040
/proc/meminfo: memFree=21033816/32951124 swapFree=67111528/67111528
[pid=4040] ppid=4038 vsize=1185716 CPUtime=0 cores=5,7
/proc/4040/stat : 4040 (shortsattime201) R 4038 4040 2625 0 -1 4202496 343 0 0 0 0 0 0 0 24 0 1 0 260924402 1214173184 284 33554432000 4194304 4230460 140733562091056 18446744073709551615 264726065861 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/4040/statm: 296462 288 117 9 0 293619 0

[startup+0.0370681 s]
/proc/loadavg: 1.15 2.51 3.32 4/189 4040
/proc/meminfo: memFree=21033816/32951124 swapFree=67111528/67111528
[pid=4040] ppid=4038 vsize=1185980 CPUtime=0.03 cores=5,7
/proc/4040/stat : 4040 (shortsattime201) R 4038 4040 2625 0 -1 4202496 449 0 0 0 3 0 0 0 24 0 1 0 260924402 1214443520 389 33554432000 4194304 4230460 140733562091056 18446744073709551615 4200296 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/4040/statm: 296495 389 117 9 0 293652 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1185980

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

[startup+0.0370681 s]
/proc/loadavg: 1.15 2.51 3.32 4/189 4040
/proc/meminfo: memFree=21033816/32951124 swapFree=67111528/67111528
[pid=4040] ppid=4038 vsize=1185980 CPUtime=0.03 cores=5,7
/proc/4040/stat : 4040 (shortsattime201) R 4038 4040 2625 0 -1 4202496 449 0 0 0 3 0 0 0 24 0 1 0 260924402 1214443520 389 33554432000 4194304 4230460 140733562091056 18446744073709551615 4200296 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/4040/statm: 296495 389 117 9 0 293652 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1185980

Child status: 10
Real time (s): 0.0703279
CPU time (s): 0.069989
CPU user time (s): 0.069989
CPU system time (s): 0
CPU usage (%): 99.5181
Max. virtual memory (cumulated for all children) (KiB): 1185980

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.069989
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= 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= 1

runsolver used 0.001999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node141 at 2011-04-01 21:11:28
IDJOB=3157349
IDBENCH=83064
IDSOLVER=1566
FILE ID=node141/3157349-1301685088
RUNJOBID= node141-1301685088-4001
PBS_JOBID= 12840557
Free space on /tmp= 71724 MiB

SOLVER NAME= shortsattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v800-c3408-S846876765-035.SATISFIABLE.cnf
COMMAND LINE= shortsattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3157349-1301685088/watcher-3157349-1301685088 -o /tmp/evaluation-result-3157349-1301685088/solver-3157349-1301685088 -C 2400 -W 1300 -M 7680  shortsattime2011 HOME/instance-3157349-1301685088.cnf 776682044

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

MD5SUM BENCH= 0d5f032713ed63748b72ef45ba69a269
RANDOM SEED=776682044

node141.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		: 2666.806
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	: 5333.61
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		: 2666.806
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	: 5362.96
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		: 2666.806
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	: 5332.82
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		: 2666.806
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		: 2666.806
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	: 5332.84
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		: 2666.806
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		: 2666.806
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		: 2666.806
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:     32951124 kB
MemFree:      21034096 kB
Buffers:        334664 kB
Cached:       11254968 kB
SwapCached:          0 kB
Active:        7531124 kB
Inactive:      4125228 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      21034096 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           31504 kB
Writeback:           0 kB
AnonPages:       66084 kB
Mapped:          14996 kB
Slab:           196576 kB
PageTables:       5140 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  3794040 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= 71716 MiB
End job on node141 at 2011-04-01 21:11:28