Trace number 3157045

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 0.542917 0.545133

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v800-c3408-S1831593686-090.SATISFIABLE.cnf
MD5SUM7dd850f670e1c9ea63e995ef24dddf5f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.06399
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 

0.49/0.54	c 0 clauses are redundant and removed
0.49/0.54	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.49/0.54	c 0 vars are fixed and 0 clauses are removed after lookahead
0.49/0.54	c initial seed is 1468129610
0.49/0.54	c try=1 flip j=1155527 walk=1023501 seed 1468129627
0.49/0.54	c A solution is found
0.49/0.54	s SATISFIABLE
0.49/0.54	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 
0.49/0.54	v 0 
0.49/0.54	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-3157045-1301681199/watcher-3157045-1301681199 -o /tmp/evaluation-result-3157045-1301681199/solver-3157045-1301681199 -C 2400 -W 1300 -M 7680 shortsattime2011 HOME/instance-3157045-1301681199.cnf 1468122823 

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 3.81 5/189 8370
/proc/meminfo: memFree=19873984/32951124 swapFree=67111528/67111528
[pid=8370] ppid=8368 vsize=1185712 CPUtime=0 cores=1,3
/proc/8370/stat : 8370 (shortsattime201) R 8368 8370 7806 0 -1 4202496 312 0 0 0 0 0 0 0 25 0 1 0 260535212 1214169088 254 33554432000 4194304 4230460 140733636928976 18446744073709551615 4207752 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/8370/statm: 296428 254 103 9 0 293585 0

[startup+0.026718 s]
/proc/loadavg: 3.92 3.98 3.81 5/189 8370
/proc/meminfo: memFree=19873984/32951124 swapFree=67111528/67111528
[pid=8370] ppid=8368 vsize=1185980 CPUtime=0.02 cores=1,3
/proc/8370/stat : 8370 (shortsattime201) R 8368 8370 7806 0 -1 4202496 448 0 0 0 2 0 0 0 25 0 1 0 260535212 1214443520 389 33554432000 4194304 4230460 140733636928976 18446744073709551615 4221276 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/8370/statm: 296495 389 117 9 0 293652 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1185980

[startup+0.10071 s]
/proc/loadavg: 3.92 3.98 3.81 5/189 8370
/proc/meminfo: memFree=19873984/32951124 swapFree=67111528/67111528
[pid=8370] ppid=8368 vsize=1185980 CPUtime=0.09 cores=1,3
/proc/8370/stat : 8370 (shortsattime201) R 8368 8370 7806 0 -1 4202496 448 0 0 0 9 0 0 0 25 0 1 0 260535212 1214443520 389 33554432000 4194304 4230460 140733636928976 18446744073709551615 4220328 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/8370/statm: 296495 389 117 9 0 293652 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1185980

[startup+0.300683 s]
/proc/loadavg: 3.92 3.98 3.81 5/189 8370
/proc/meminfo: memFree=19873984/32951124 swapFree=67111528/67111528
[pid=8370] ppid=8368 vsize=1185980 CPUtime=0.29 cores=1,3
/proc/8370/stat : 8370 (shortsattime201) R 8368 8370 7806 0 -1 4202496 448 0 0 0 29 0 0 0 25 0 1 0 260535212 1214443520 389 33554432000 4194304 4230460 140733636928976 18446744073709551615 4223205 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/8370/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+0.500638 s]
/proc/loadavg: 3.92 3.98 3.81 5/189 8370
/proc/meminfo: memFree=19873984/32951124 swapFree=67111528/67111528
[pid=8370] ppid=8368 vsize=1185980 CPUtime=0.49 cores=1,3
/proc/8370/stat : 8370 (shortsattime201) R 8368 8370 7806 0 -1 4202496 448 0 0 0 49 0 0 0 25 0 1 0 260535212 1214443520 389 33554432000 4194304 4230460 140733636928976 18446744073709551615 4221066 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/8370/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): 0.545133
CPU time (s): 0.542917
CPU user time (s): 0.542917
CPU system time (s): 0
CPU usage (%): 99.5935
Max. virtual memory (cumulated for all children) (KiB): 1185980

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.542917
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= 452
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= 6

runsolver used 0.000999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node140 at 2011-04-01 20:06:39
IDJOB=3157045
IDBENCH=82760
IDSOLVER=1566
FILE ID=node140/3157045-1301681199
RUNJOBID= node140-1301678138-7826
PBS_JOBID= 12840558
Free space on /tmp= 71328 MiB

SOLVER NAME= shortsattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v800-c3408-S1831593686-090.SATISFIABLE.cnf
COMMAND LINE= shortsattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3157045-1301681199/watcher-3157045-1301681199 -o /tmp/evaluation-result-3157045-1301681199/solver-3157045-1301681199 -C 2400 -W 1300 -M 7680  shortsattime2011 HOME/instance-3157045-1301681199.cnf 1468122823

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

MD5SUM BENCH= 7dd850f670e1c9ea63e995ef24dddf5f
RANDOM SEED=1468122823

node140.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		: 2666.833
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	: 5333.66
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		: 2666.833
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	: 5226.14
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		: 2666.833
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	: 5332.75
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		: 2666.833
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	: 5332.77
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		: 2666.833
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	: 5332.75
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		: 2666.833
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	: 5332.74
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		: 2666.833
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		: 2666.833
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:      19874388 kB
Buffers:        352356 kB
Cached:       12329368 kB
SwapCached:          0 kB
Active:        7566228 kB
Inactive:      5232408 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      19874388 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            7784 kB
Writeback:           0 kB
AnonPages:      116700 kB
Mapped:          15320 kB
Slab:           214120 kB
PageTables:       5788 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  3830032 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= 71320 MiB
End job on node140 at 2011-04-01 20:06:40