Trace number 3375194

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
MPhaseSAT64 2011-05-14 (fixed)SAT 0.826873 0.826992

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v700-c2982-S171669125-021.SATISFIABLE.cnf
MD5SUM9649b9e4fa8d251c4c59f8783cbf0b60
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.008998
Satisfiable
(Un)Satisfiability was proved
Number of variables700
Number of clauses2982
Sum of the clauses size8946
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32982
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.79/0.82	c MPhaseSAT64 version 514 by Jingchao Chen,  May 13,2011
0.79/0.82	c input CNF file=HOME/instance-3375194-1305449835.cnf 
0.79/0.82	c Clause#=2982  var#=700  ratio=4 
0.79/0.82	c Simplified clause#=2982 
0.79/0.82	c XOR_varElimination deleted var#=1 clauses#=2963 
0.79/0.82	c inative var#=0 
0.79/0.82	c free var#=680  
0.79/0.82	c local search on 
0.79/0.82	c A solution found by local search 
0.79/0.82	c unfixed var#=18 var#=700 
0.79/0.82	c verified 
0.79/0.82	c 
0.79/0.82	s SATISFIABLE
0.79/0.82	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 -195 196 197 198 199 200 202 203 -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 
0.79/0.82	v 0
0.79/0.82	c 
0.79/0.82	c  Running time=0.824875

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 961)

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-3375194-1305449835/watcher-3375194-1305449835 -o /tmp/evaluation-result-3375194-1305449835/solver-3375194-1305449835 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3375194-1305449835.cnf 

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: 0.92 1.32 2.41 2/297 32072
/proc/meminfo: memFree=27478524/32951124 swapFree=63649232/67111528
[pid=32072] ppid=32070 vsize=12312 CPUtime=0 cores=1,3
/proc/32072/stat : 32072 (MPhaseSAT64) R 32070 32072 31275 0 -1 4202496 457 0 0 0 0 0 0 0 23 0 1 0 656581983 12607488 396 33554432000 4194304 4479436 140734998683296 18446744073709551615 4267461 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/32072/statm: 3078 396 282 70 0 198 0

[startup+0.056525 s]
/proc/loadavg: 0.92 1.32 2.41 2/297 32072
/proc/meminfo: memFree=27478524/32951124 swapFree=63649232/67111528
[pid=32072] ppid=32070 vsize=12676 CPUtime=0.05 cores=1,3
/proc/32072/stat : 32072 (MPhaseSAT64) R 32070 32072 31275 0 -1 4202496 626 0 0 0 5 0 0 0 23 0 1 0 656581983 12980224 564 33554432000 4194304 4479436 140734998683296 18446744073709551615 4451020 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/32072/statm: 3169 564 324 70 0 289 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 12676

[startup+0.100519 s]
/proc/loadavg: 0.92 1.32 2.41 2/297 32072
/proc/meminfo: memFree=27478524/32951124 swapFree=63649232/67111528
[pid=32072] ppid=32070 vsize=12812 CPUtime=0.09 cores=1,3
/proc/32072/stat : 32072 (MPhaseSAT64) R 32070 32072 31275 0 -1 4202496 662 0 0 0 9 0 0 0 23 0 1 0 656581983 13119488 600 33554432000 4194304 4479436 140734998683296 18446744073709551615 4450925 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/32072/statm: 3203 600 324 70 0 323 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12812

[startup+0.300481 s]
/proc/loadavg: 0.92 1.32 2.41 2/297 32072
/proc/meminfo: memFree=27478524/32951124 swapFree=63649232/67111528
[pid=32072] ppid=32070 vsize=13744 CPUtime=0.29 cores=1,3
/proc/32072/stat : 32072 (MPhaseSAT64) R 32070 32072 31275 0 -1 4202496 911 0 0 0 29 0 0 0 25 0 1 0 656581983 14073856 849 33554432000 4194304 4479436 140734998683296 18446744073709551615 4382933 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/32072/statm: 3436 849 324 70 0 556 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13744

[startup+0.700415 s]
/proc/loadavg: 0.92 1.32 2.41 2/297 32072
/proc/meminfo: memFree=27478524/32951124 swapFree=63649232/67111528
[pid=32072] ppid=32070 vsize=15032 CPUtime=0.69 cores=1,3
/proc/32072/stat : 32072 (MPhaseSAT64) R 32070 32072 31275 0 -1 4202496 1234 0 0 0 69 0 0 0 25 0 1 0 656581983 15392768 1172 33554432000 4194304 4479436 140734998683296 18446744073709551615 4306795 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/32072/statm: 3758 1172 325 70 0 878 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 15032

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

[startup+0.800399 s]
/proc/loadavg: 0.92 1.32 2.41 2/297 32072
/proc/meminfo: memFree=27478524/32951124 swapFree=63649232/67111528
[pid=32072] ppid=32070 vsize=14776 CPUtime=0.79 cores=1,3
/proc/32072/stat : 32072 (MPhaseSAT64) R 32070 32072 31275 0 -1 4202496 1237 0 0 0 79 0 0 0 25 0 1 0 656581983 15130624 1111 33554432000 4194304 4479436 140734998683296 18446744073709551615 4292959 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/32072/statm: 3694 1111 328 70 0 814 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 14776

Child status: 10
Real time (s): 0.826992
CPU time (s): 0.826873
CPU user time (s): 0.822874
CPU system time (s): 0.003999
CPU usage (%): 99.9856
Max. virtual memory (cumulated for all children) (KiB): 15032

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.822874
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1250
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= 4
involuntary context switches= 4

runsolver used 0.003999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node130 at 2011-05-15 10:57:15
IDJOB=3375194
IDBENCH=82903
IDSOLVER=1855
FILE ID=node130/3375194-1305449835
RUNJOBID= node130-1305449835-32052
PBS_JOBID= 13324842
Free space on /tmp= 73468 MiB

SOLVER NAME= MPhaseSAT64 2011-05-14 (fixed)
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v700-c2982-S171669125-021.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3375194-1305449835/watcher-3375194-1305449835 -o /tmp/evaluation-result-3375194-1305449835/solver-3375194-1305449835 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3375194-1305449835.cnf

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

MD5SUM BENCH= 9649b9e4fa8d251c4c59f8783cbf0b60
RANDOM SEED=1723093549

node130.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		: 2666.838
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	: 5333.67
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		: 2666.838
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	: 5332.83
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		: 2666.838
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		: 2666.838
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	: 5332.81
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		: 2666.838
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		: 2666.838
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	: 5332.83
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		: 2666.838
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		: 2666.838
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	: 5332.81
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      27478556 kB
Buffers:        278700 kB
Cached:        3866460 kB
SwapCached:      10248 kB
Active:        1325304 kB
Inactive:      3875716 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      27478556 kB
SwapTotal:    67111528 kB
SwapFree:     63649232 kB
Dirty:             888 kB
Writeback:           0 kB
AnonPages:     1054096 kB
Mapped:          13664 kB
Slab:           183408 kB
PageTables:      25568 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 51487804 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= 73464 MiB
End job on node130 at 2011-05-15 10:57:16