Trace number 3154236

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
sattime 2011-03-02SAT 0.06299 0.063924

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v700-c2982-S900569154-026.SATISFIABLE.cnf
MD5SUM90af97b0aabddb9e07bb7ada8a5dcbc1
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.017996
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 

0.00/0.06	c 0 clauses are redundant and removed
0.00/0.06	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.06	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.06	c initial seed is 739465466
0.00/0.06	c try=1 flip j=113648 walk=100651 seed 739465483
0.00/0.06	c A solution is found
0.00/0.06	s SATISFIABLE
0.00/0.06	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 
0.00/0.06	v 0 
0.00/0.06	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-3154236-1301681932/watcher-3154236-1301681932 -o /tmp/evaluation-result-3154236-1301681932/solver-3154236-1301681932 -C 2400 -W 1300 -M 7680 sattime HOME/instance-3154236-1301681932.cnf 739465466 

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: 4.02 3.97 3.25 4/187 30082
/proc/meminfo: memFree=21902796/32951124 swapFree=67111528/67111528
[pid=30082] ppid=30080 vsize=990536 CPUtime=0 cores=0,2
/proc/30082/stat : 30082 (sattime) R 30080 30082 29837 0 -1 4202496 407 0 0 0 0 0 0 0 25 0 1 0 279795938 1014308864 347 33554432000 4194304 4228548 140733682494688 18446744073709551615 4216654 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/30082/statm: 247634 347 116 9 0 244791 0

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

Child status: 10
Real time (s): 0.063924
CPU time (s): 0.06299
CPU user time (s): 0.06299
CPU system time (s): 0
CPU usage (%): 98.5388
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.06299
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= 411
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 0.002999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node101 at 2011-04-01 20:18:52
IDJOB=3154236
IDBENCH=82743
IDSOLVER=1564
FILE ID=node101/3154236-1301681932
RUNJOBID= node101-1301680629-29855
PBS_JOBID= 12840596
Free space on /tmp= 71708 MiB

SOLVER NAME= sattime 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v700-c2982-S900569154-026.SATISFIABLE.cnf
COMMAND LINE= sattime BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3154236-1301681932/watcher-3154236-1301681932 -o /tmp/evaluation-result-3154236-1301681932/solver-3154236-1301681932 -C 2400 -W 1300 -M 7680  sattime HOME/instance-3154236-1301681932.cnf 739465466

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

MD5SUM BENCH= 90af97b0aabddb9e07bb7ada8a5dcbc1
RANDOM SEED=739465466

node101.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		: 2666.841
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	: 5333.68
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		: 2666.841
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	: 5226.07
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		: 2666.841
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	: 5332.77
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		: 2666.841
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	: 5332.83
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		: 2666.841
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	: 5332.74
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		: 2666.841
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		: 2666.841
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		: 2666.841
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      21902952 kB
Buffers:        320296 kB
Cached:       10408544 kB
SwapCached:          0 kB
Active:        7128644 kB
Inactive:      3667336 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      21902952 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           24132 kB
Writeback:           0 kB
AnonPages:       67376 kB
Mapped:          15240 kB
Slab:           190348 kB
PageTables:       5216 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  2236376 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= 71700 MiB
End job on node101 at 2011-04-01 20:18:52