Trace number 3157256

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 0.209967 0.210949

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v800-c3408-S890760919-021.SATISFIABLE.cnf
MD5SUM17e7946cc73ece994e4c474e2407ffbb
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.06099
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 

0.19/0.21	c 0 clauses are redundant and removed
0.19/0.21	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.19/0.21	c 0 vars are fixed and 0 clauses are removed after lookahead
0.19/0.21	c initial seed is 980268248
0.19/0.21	c try=1 flip j=430688 walk=379905 seed 980268265
0.19/0.21	c A solution is found
0.19/0.21	s SATISFIABLE
0.19/0.21	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 
0.19/0.21	v 0 
0.19/0.21	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-3157256-1301683627/watcher-3157256-1301683627 -o /tmp/evaluation-result-3157256-1301683627/solver-3157256-1301683627 -C 2400 -W 1300 -M 7680 shortsattime2011 HOME/instance-3157256-1301683627.cnf 980261461 

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: 3.95 4.00 3.96 5/189 15042
/proc/meminfo: memFree=21806388/32951124 swapFree=67111528/67111528
[pid=15042] ppid=15040 vsize=1185980 CPUtime=0 cores=5,7
/proc/15042/stat : 15042 (shortsattime201) R 15040 15042 14026 0 -1 4202496 410 0 0 0 0 0 0 0 25 0 1 0 279960654 1214443520 350 33554432000 4194304 4230460 140735106082768 18446744073709551615 4222065 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/15042/statm: 296495 350 117 9 0 293652 0

[startup+0.0366071 s]
/proc/loadavg: 3.95 4.00 3.96 5/189 15042
/proc/meminfo: memFree=21806388/32951124 swapFree=67111528/67111528
[pid=15042] ppid=15040 vsize=1185980 CPUtime=0.03 cores=5,7
/proc/15042/stat : 15042 (shortsattime201) R 15040 15042 14026 0 -1 4202496 449 0 0 0 3 0 0 0 25 0 1 0 279960654 1214443520 389 33554432000 4194304 4230460 140735106082768 18446744073709551615 4221539 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/15042/statm: 296495 389 117 9 0 293652 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1185980

[startup+0.100599 s]
/proc/loadavg: 3.95 4.00 3.96 5/189 15042
/proc/meminfo: memFree=21806388/32951124 swapFree=67111528/67111528
[pid=15042] ppid=15040 vsize=1185980 CPUtime=0.09 cores=5,7
/proc/15042/stat : 15042 (shortsattime201) R 15040 15042 14026 0 -1 4202496 449 0 0 0 9 0 0 0 25 0 1 0 279960654 1214443520 389 33554432000 4194304 4230460 140735106082768 18446744073709551615 4224206 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/15042/statm: 296495 389 117 9 0 293652 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1185980

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

[startup+0.200573 s]
/proc/loadavg: 3.95 4.00 3.96 5/189 15042
/proc/meminfo: memFree=21806388/32951124 swapFree=67111528/67111528
[pid=15042] ppid=15040 vsize=1185980 CPUtime=0.19 cores=5,7
/proc/15042/stat : 15042 (shortsattime201) R 15040 15042 14026 0 -1 4202496 449 0 0 0 19 0 0 0 25 0 1 0 279960654 1214443520 389 33554432000 4194304 4230460 140735106082768 18446744073709551615 4221496 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/15042/statm: 296495 389 117 9 0 293652 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 1185980

Child status: 10
Real time (s): 0.210949
CPU time (s): 0.209967
CPU user time (s): 0.208968
CPU system time (s): 0.000999
CPU usage (%): 99.5345
Max. virtual memory (cumulated for all children) (KiB): 1185980

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.208968
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= 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= 0

runsolver used 0.000999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node138 at 2011-04-01 20:47:07
IDJOB=3157256
IDBENCH=82971
IDSOLVER=1566
FILE ID=node138/3157256-1301683627
RUNJOBID= node138-1301678136-14047
PBS_JOBID= 12840560
Free space on /tmp= 71700 MiB

SOLVER NAME= shortsattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v800-c3408-S890760919-021.SATISFIABLE.cnf
COMMAND LINE= shortsattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3157256-1301683627/watcher-3157256-1301683627 -o /tmp/evaluation-result-3157256-1301683627/solver-3157256-1301683627 -C 2400 -W 1300 -M 7680  shortsattime2011 HOME/instance-3157256-1301683627.cnf 980261461

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

MD5SUM BENCH= 17e7946cc73ece994e4c474e2407ffbb
RANDOM SEED=980261461

node138.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	: 5332.82
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		: 2666.854
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	: 5332.80
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	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      21806544 kB
Buffers:        343548 kB
Cached:       10471464 kB
SwapCached:          0 kB
Active:        7453868 kB
Inactive:      3430704 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      21806544 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            7780 kB
Writeback:           0 kB
AnonPages:       69460 kB
Mapped:          15324 kB
Slab:           195468 kB
PageTables:       5708 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  3796352 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= 71692 MiB
End job on node138 at 2011-04-01 20:47:07