Trace number 3157036

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 0.11998 0.120454

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v650-c2769-S525571208-063.SATISFIABLE.cnf
MD5SUM0d5db3c80640d96c57ce9e3d0b9dc725
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.020995
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 

0.10/0.12	c 0 clauses are redundant and removed
0.10/0.12	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.10/0.12	c 0 vars are fixed and 0 clauses are removed after lookahead
0.10/0.12	c initial seed is 1102653814
0.10/0.12	c try=1 flip j=249377 walk=218674 seed 1102653831
0.10/0.12	c A solution is found
0.10/0.12	s SATISFIABLE
0.10/0.12	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 
0.10/0.12	v 0 
0.10/0.12	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-3157036-1301681021/watcher-3157036-1301681021 -o /tmp/evaluation-result-3157036-1301681021/solver-3157036-1301681021 -C 2400 -W 1300 -M 7680 shortsattime2011 HOME/instance-3157036-1301681021.cnf 1102647027 

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: 4.00 4.00 3.79 4/189 14530
/proc/meminfo: memFree=21718716/32951124 swapFree=67111528/67111528
[pid=14530] ppid=14528 vsize=1185848 CPUtime=0 cores=5,7
/proc/14530/stat : 14530 (shortsattime201) R 14528 14530 14026 0 -1 4202496 409 0 0 0 0 0 0 0 25 0 1 0 279700073 1214308352 350 33554432000 4194304 4230460 140733281285712 18446744073709551615 4221251 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/14530/statm: 296462 350 117 9 0 293619 0

[startup+0.0277699 s]
/proc/loadavg: 4.00 4.00 3.79 4/189 14530
/proc/meminfo: memFree=21718716/32951124 swapFree=67111528/67111528
[pid=14530] ppid=14528 vsize=1185848 CPUtime=0.02 cores=5,7
/proc/14530/stat : 14530 (shortsattime201) R 14528 14530 14026 0 -1 4202496 409 0 0 0 2 0 0 0 25 0 1 0 279700073 1214308352 350 33554432000 4194304 4230460 140733281285712 18446744073709551615 4200528 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/14530/statm: 296462 350 117 9 0 293619 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1185848

[startup+0.100762 s]
/proc/loadavg: 4.00 4.00 3.79 4/189 14530
/proc/meminfo: memFree=21718716/32951124 swapFree=67111528/67111528
[pid=14530] ppid=14528 vsize=1185848 CPUtime=0.1 cores=5,7
/proc/14530/stat : 14530 (shortsattime201) R 14528 14530 14026 0 -1 4202496 409 0 0 0 10 0 0 0 25 0 1 0 279700073 1214308352 350 33554432000 4194304 4230460 140733281285712 18446744073709551615 228122115604 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/14530/statm: 296462 350 117 9 0 293619 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1185848

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

Child status: 10
Real time (s): 0.120454
CPU time (s): 0.11998
CPU user time (s): 0.118981
CPU system time (s): 0.000999
CPU usage (%): 99.6064
Max. virtual memory (cumulated for all children) (KiB): 1185848

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.118981
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= 413
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= 2

runsolver used 0.003999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node138 at 2011-04-01 20:03:41
IDJOB=3157036
IDBENCH=82751
IDSOLVER=1566
FILE ID=node138/3157036-1301681021
RUNJOBID= node138-1301678136-14047
PBS_JOBID= 12840560
Free space on /tmp= 71696 MiB

SOLVER NAME= shortsattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v650-c2769-S525571208-063.SATISFIABLE.cnf
COMMAND LINE= shortsattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3157036-1301681021/watcher-3157036-1301681021 -o /tmp/evaluation-result-3157036-1301681021/solver-3157036-1301681021 -C 2400 -W 1300 -M 7680  shortsattime2011 HOME/instance-3157036-1301681021.cnf 1102647027

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

MD5SUM BENCH= 0d5db3c80640d96c57ce9e3d0b9dc725
RANDOM SEED=1102647027

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:      21718872 kB
Buffers:        342812 kB
Cached:       10477328 kB
SwapCached:          0 kB
Active:        7541104 kB
Inactive:      3430628 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      21718872 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            7792 kB
Writeback:           0 kB
AnonPages:      151572 kB
Mapped:          15356 kB
Slab:           195696 kB
PageTables:       6016 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  3854080 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= 71688 MiB
End job on node138 at 2011-04-01 20:03:41