Trace number 3157328

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 0.175973 0.179371

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v650-c2769-S1261029273-036.SATISFIABLE.cnf
MD5SUMad12e37a0f3b75f1b331fdb5e803c99f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.034993
Satisfiable
(Un)Satisfiability was proved
Number of variables650
Number of clauses2769
Sum of the clauses size8307
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32769
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.09/0.17	c 0 clauses are redundant and removed
0.09/0.17	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.09/0.17	c 0 vars are fixed and 0 clauses are removed after lookahead
0.09/0.17	c initial seed is 1077517244
0.09/0.17	c try=1 flip j=344698 walk=303104 seed 1077517261
0.09/0.17	c A solution is found
0.09/0.17	s SATISFIABLE
0.09/0.17	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 
0.09/0.17	v 0 
0.09/0.17	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-3157328-1301684914/watcher-3157328-1301684914 -o /tmp/evaluation-result-3157328-1301684914/solver-3157328-1301684914 -C 2400 -W 1300 -M 7680 shortsattime2011 HOME/instance-3157328-1301684914.cnf 1077510457 

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: 0.96 2.08 3.08 4/181 30331
/proc/meminfo: memFree=22399308/32951124 swapFree=67111528/67111528
[pid=30331] ppid=30329 vsize=1185712 CPUtime=0 cores=0,2
/proc/30331/stat : 30331 (shortsattime201) R 30329 30331 29294 0 -1 4202496 291 0 0 0 0 0 0 0 24 0 1 0 280091779 1214169088 232 33554432000 4194304 4230460 140734057164560 18446744073709551615 4207504 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/30331/statm: 296428 232 103 9 0 293585 0

[startup+0.084218 s]
/proc/loadavg: 0.96 2.08 3.08 4/181 30331
/proc/meminfo: memFree=22399308/32951124 swapFree=67111528/67111528
[pid=30331] ppid=30329 vsize=1185848 CPUtime=0.08 cores=0,2
/proc/30331/stat : 30331 (shortsattime201) R 30329 30331 29294 0 -1 4202496 410 0 0 0 8 0 0 0 24 0 1 0 280091779 1214308352 350 33554432000 4194304 4230460 140734057164560 18446744073709551615 4221520 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/30331/statm: 296462 350 117 9 0 293619 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1185848

[startup+0.10022 s]
/proc/loadavg: 0.96 2.08 3.08 4/181 30331
/proc/meminfo: memFree=22399308/32951124 swapFree=67111528/67111528
[pid=30331] ppid=30329 vsize=1185848 CPUtime=0.09 cores=0,2
/proc/30331/stat : 30331 (shortsattime201) R 30329 30331 29294 0 -1 4202496 410 0 0 0 9 0 0 0 24 0 1 0 280091779 1214308352 350 33554432000 4194304 4230460 140734057164560 18446744073709551615 4200274 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/30331/statm: 296462 350 117 9 0 293619 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1185848

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

Child status: 10
Real time (s): 0.179371
CPU time (s): 0.175973
CPU user time (s): 0.175973
CPU system time (s): 0
CPU usage (%): 98.1056
Max. virtual memory (cumulated for all children) (KiB): 1185848

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.175973
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= 414
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 0.000999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node106 at 2011-04-01 21:08:34
IDJOB=3157328
IDBENCH=83043
IDSOLVER=1566
FILE ID=node106/3157328-1301684914
RUNJOBID= node106-1301684914-30295
PBS_JOBID= 12840590
Free space on /tmp= 71340 MiB

SOLVER NAME= shortsattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v650-c2769-S1261029273-036.SATISFIABLE.cnf
COMMAND LINE= shortsattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3157328-1301684914/watcher-3157328-1301684914 -o /tmp/evaluation-result-3157328-1301684914/solver-3157328-1301684914 -C 2400 -W 1300 -M 7680  shortsattime2011 HOME/instance-3157328-1301684914.cnf 1077510457

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

MD5SUM BENCH= ad12e37a0f3b75f1b331fdb5e803c99f
RANDOM SEED=1077510457

node106.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		: 2666.830
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		: 2666.830
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	: 5226.20
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		: 2666.830
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		: 2666.830
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	: 5332.82
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		: 2666.830
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		: 2666.830
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		: 2666.830
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		: 2666.830
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:      22399728 kB
Buffers:        331824 kB
Cached:        9894184 kB
SwapCached:          0 kB
Active:        6779300 kB
Inactive:      3510100 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      22399728 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           31460 kB
Writeback:           0 kB
AnonPages:       63300 kB
Mapped:          14996 kB
Slab:           198684 kB
PageTables:       4736 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   212480 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= 71328 MiB
End job on node106 at 2011-04-01 21:08:34