Trace number 3094262

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
MPhaseSAT 2011-02-15SAT 1.13583 1.13592

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v750-c3195-S1985868475-070.SATISFIABLE.cnf
MD5SUM2611875052dd229d9ca71a614eae0715
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.015996
Satisfiable
(Un)Satisfiability was proved
Number of variables750
Number of clauses3195
Sum of the clauses size9585
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 33195
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

1.10/1.13	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
1.10/1.13	c input CNF file=HOME/instance-3094262-1301752856.cnf 
1.10/1.13	c Clause#=3195  var#=750  ratio=4 
1.10/1.13	c Simplified clause#=3195 
1.10/1.13	c XOR_varElimination deleted var#=1 clauses#=3164 
1.10/1.13	c inative var#=0 
1.10/1.13	c free var#=726  
1.10/1.13	c local search on 
1.10/1.13	c A solution found by local search 
1.10/1.13	c unfixed var#=19 var#=750 
1.10/1.13	c verified 
1.10/1.13	c 
1.10/1.13	s SATISFIABLE
1.10/1.13	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 -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 -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 -493 494 495 497 -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 -675 677 -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 
1.10/1.13	v 0
1.10/1.13	c 
1.10/1.13	c  Running time=1.133828

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-3094262-1301752856/watcher-3094262-1301752856 -o /tmp/evaluation-result-3094262-1301752856/solver-3094262-1301752856 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094262-1301752856.cnf 

running on 2 cores: 0,2

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: 4.04 4.01 3.92 4/189 13785
/proc/meminfo: memFree=19003576/32950928 swapFree=67111528/67111528
[pid=13785] ppid=13783 vsize=3176 CPUtime=0 cores=0,2
/proc/13785/stat : 13785 (MPhaseSAT) R 13783 13785 13129 0 -1 4202496 390 0 0 0 0 0 0 0 25 0 1 0 365516328 3252224 329 33554432000 134512640 134731564 4291106416 18446744073709551615 134559024 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/13785/statm: 794 329 237 54 0 104 0

[startup+0.040449 s]
/proc/loadavg: 4.04 4.01 3.92 4/189 13785
/proc/meminfo: memFree=19003576/32950928 swapFree=67111528/67111528
[pid=13785] ppid=13783 vsize=3704 CPUtime=0.03 cores=0,2
/proc/13785/stat : 13785 (MPhaseSAT) R 13783 13785 13129 0 -1 4202496 527 0 0 0 3 0 0 0 25 0 1 0 365516328 3792896 465 33554432000 134512640 134731564 4291106416 18446744073709551615 134717502 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/13785/statm: 926 465 268 54 0 236 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 3704

[startup+0.100486 s]
/proc/loadavg: 4.04 4.01 3.92 4/189 13785
/proc/meminfo: memFree=19003576/32950928 swapFree=67111528/67111528
[pid=13785] ppid=13783 vsize=3836 CPUtime=0.09 cores=0,2
/proc/13785/stat : 13785 (MPhaseSAT) R 13783 13785 13129 0 -1 4202496 586 0 0 0 9 0 0 0 25 0 1 0 365516328 3928064 524 33554432000 134512640 134731564 4291106416 18446744073709551615 134659334 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/13785/statm: 959 524 268 54 0 269 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3836

[startup+0.300505 s]
/proc/loadavg: 4.04 4.01 3.92 4/189 13785
/proc/meminfo: memFree=19003576/32950928 swapFree=67111528/67111528
[pid=13785] ppid=13783 vsize=4100 CPUtime=0.29 cores=0,2
/proc/13785/stat : 13785 (MPhaseSAT) R 13783 13785 13129 0 -1 4202496 634 0 0 0 29 0 0 0 25 0 1 0 365516328 4198400 572 33554432000 134512640 134731564 4291106416 18446744073709551615 134667169 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/13785/statm: 1025 572 268 54 0 335 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4100

[startup+0.700329 s]
/proc/loadavg: 4.04 4.01 3.92 4/189 13785
/proc/meminfo: memFree=19003576/32950928 swapFree=67111528/67111528
[pid=13785] ppid=13783 vsize=4232 CPUtime=0.69 cores=0,2
/proc/13785/stat : 13785 (MPhaseSAT) R 13783 13785 13129 0 -1 4202496 687 0 0 0 69 0 0 0 25 0 1 0 365516328 4333568 625 33554432000 134512640 134731564 4291106416 18446744073709551615 134624789 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/13785/statm: 1058 625 268 54 0 368 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4232

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

[startup+1.10632 s]
/proc/loadavg: 4.04 4.01 3.92 5/190 13786
/proc/meminfo: memFree=19001468/32950928 swapFree=67111528/67111528
[pid=13785] ppid=13783 vsize=4760 CPUtime=1.1 cores=0,2
/proc/13785/stat : 13785 (MPhaseSAT) R 13783 13785 13129 0 -1 4202496 798 0 0 0 110 0 0 0 25 0 1 0 365516328 4874240 736 33554432000 134512640 134731564 4291106416 18446744073709551615 134603396 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/13785/statm: 1190 736 271 54 0 500 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 4760

Child status: 10
Real time (s): 1.13592
CPU time (s): 1.13583
CPU user time (s): 1.13483
CPU system time (s): 0.000999
CPU usage (%): 99.9919
Max. virtual memory (cumulated for all children) (KiB): 4760

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.13483
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= 817
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= 6
involuntary context switches= 3

runsolver used 0.002999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node116 at 2011-04-02 16:00:57
IDJOB=3094262
IDBENCH=82744
IDSOLVER=1520
FILE ID=node116/3094262-1301752856
RUNJOBID= node116-1301748570-13147
PBS_JOBID= 12841021
Free space on /tmp= 71260 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v750-c3195-S1985868475-070.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094262-1301752856/watcher-3094262-1301752856 -o /tmp/evaluation-result-3094262-1301752856/solver-3094262-1301752856 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094262-1301752856.cnf

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

MD5SUM BENCH= 2611875052dd229d9ca71a614eae0715
RANDOM SEED=1691656381

node116.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		: 2666.826
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	: 5333.65
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		: 2666.826
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	: 5226.15
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		: 2666.826
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		: 2666.826
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		: 2666.826
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	: 5332.77
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		: 2666.826
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		: 2666.826
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		: 2666.826
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:     32950928 kB
MemFree:      19003856 kB
Buffers:        387024 kB
Cached:       13018944 kB
SwapCached:          0 kB
Active:        9262000 kB
Inactive:      4377216 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      19003856 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             336 kB
Writeback:           0 kB
AnonPages:      233684 kB
Mapped:          17104 kB
Slab:           244332 kB
PageTables:       5196 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   419460 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= 71256 MiB
End job on node116 at 2011-04-02 16:00:58