Trace number 3157143

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 0.097984 0.098047

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v800-c3408-S456969343-019.SATISFIABLE.cnf
MD5SUM957c55bb21add5f7b2abfbda860d1a95
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 

0.09/0.09	c 0 clauses are redundant and removed
0.09/0.09	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.09/0.09	c 0 vars are fixed and 0 clauses are removed after lookahead
0.09/0.09	c initial seed is 1390773986
0.09/0.09	c try=1 flip j=182712 walk=157836 seed 1390774003
0.09/0.09	c A solution is found
0.09/0.09	s SATISFIABLE
0.09/0.09	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 
0.09/0.09	v 0 
0.09/0.09	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-3157143-1301682324/watcher-3157143-1301682324 -o /tmp/evaluation-result-3157143-1301682324/solver-3157143-1301682324 -C 2400 -W 1300 -M 7680 shortsattime2011 HOME/instance-3157143-1301682324.cnf 1390767199 

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: 4.09 4.02 3.93 4/189 14814
/proc/meminfo: memFree=21807852/32951124 swapFree=67111528/67111528
[pid=14814] ppid=14812 vsize=1185980 CPUtime=0 cores=5,7
/proc/14814/stat : 14814 (shortsattime201) R 14812 14814 14026 0 -1 4202496 433 0 0 0 0 0 0 0 25 0 1 0 279830389 1214443520 374 33554432000 4194304 4230460 140735149634400 18446744073709551615 4222700 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/14814/statm: 296495 378 117 9 0 293652 0

[startup+0.091298 s]
/proc/loadavg: 4.09 4.02 3.93 4/189 14814
/proc/meminfo: memFree=21807852/32951124 swapFree=67111528/67111528
[pid=14814] ppid=14812 vsize=1185980 CPUtime=0.09 cores=5,7
/proc/14814/stat : 14814 (shortsattime201) R 14812 14814 14026 0 -1 4202496 448 0 0 0 9 0 0 0 25 0 1 0 279830389 1214443520 389 33554432000 4194304 4230460 140735149634400 18446744073709551615 4221183 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/14814/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+0.091298 s]
/proc/loadavg: 4.09 4.02 3.93 4/189 14814
/proc/meminfo: memFree=21807852/32951124 swapFree=67111528/67111528
[pid=14814] ppid=14812 vsize=1185980 CPUtime=0.09 cores=5,7
/proc/14814/stat : 14814 (shortsattime201) R 14812 14814 14026 0 -1 4202496 448 0 0 0 9 0 0 0 25 0 1 0 279830389 1214443520 389 33554432000 4194304 4230460 140735149634400 18446744073709551615 4221183 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/14814/statm: 296495 389 117 9 0 293652 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1185980

Child status: 10
Real time (s): 0.098047
CPU time (s): 0.097984
CPU user time (s): 0.096985
CPU system time (s): 0.000999
CPU usage (%): 99.9358
Max. virtual memory (cumulated for all children) (KiB): 1185980

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.096985
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= 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= 1

runsolver used 0.001999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node138 at 2011-04-01 20:25:24
IDJOB=3157143
IDBENCH=82858
IDSOLVER=1566
FILE ID=node138/3157143-1301682324
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-S456969343-019.SATISFIABLE.cnf
COMMAND LINE= shortsattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3157143-1301682324/watcher-3157143-1301682324 -o /tmp/evaluation-result-3157143-1301682324/solver-3157143-1301682324 -C 2400 -W 1300 -M 7680  shortsattime2011 HOME/instance-3157143-1301682324.cnf 1390767199

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

MD5SUM BENCH= 957c55bb21add5f7b2abfbda860d1a95
RANDOM SEED=1390767199

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:      21807884 kB
Buffers:        343164 kB
Cached:       10471264 kB
SwapCached:          0 kB
Active:        7452800 kB
Inactive:      3430712 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      21807884 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            7808 kB
Writeback:           0 kB
AnonPages:       69032 kB
Mapped:          15324 kB
Slab:           195408 kB
PageTables:       5704 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  3798472 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 20:25:24