Trace number 3427007

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
sattime2011 2011-03-02SAT 1.05084 1.0517

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v600-c2556-S2050053883-062.SATISFIABLE.cnf
MD5SUM7ed8e8e4deac31c88cbf5be40a0cd9c0
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.823874
Satisfiable
(Un)Satisfiability was proved
Number of variables600
Number of clauses2556
Sum of the clauses size7668
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32556
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

1.00/1.05	c 0 clauses are redundant and removed
1.00/1.05	c 0 vars are fixed and 0 clauses are removed after unit propagation
1.00/1.05	c 0 vars are fixed and 0 clauses are removed after lookahead
1.00/1.05	c initial seed is 1551628009
1.00/1.05	c try=1 flip j=2302169 walk=2003354 seed 1551628026
1.00/1.05	c A solution is found
1.00/1.05	s SATISFIABLE
1.00/1.05	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 
1.00/1.05	v 0 
1.00/1.05	c Done (mycputime is 1 seconds)

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-3427007-1306782006/watcher-3427007-1306782006 -o /tmp/evaluation-result-3427007-1306782006/solver-3427007-1306782006 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3427007-1306782006.cnf 1551624552 

running on 4 cores: 1,3,5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 5100 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.00 2.01 2.00 2/437 8486
/proc/meminfo: memFree=4673352/32951124 swapFree=51462112/67111528
[pid=8486] ppid=8484 vsize=1185848 CPUtime=0 cores=1,3,5,7
/proc/8486/stat : 8486 (sattime2011) R 8484 8486 7565 0 -1 4202496 391 0 0 0 0 0 0 0 24 0 1 0 770616259 1214308352 335 33554432000 4194304 4230460 140734929116848 18446744073709551615 4221607 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8486/statm: 296462 335 117 9 0 293619 0

[startup+0.0739029 s]
/proc/loadavg: 2.00 2.01 2.00 2/437 8486
/proc/meminfo: memFree=4673352/32951124 swapFree=51462112/67111528
[pid=8486] ppid=8484 vsize=1185848 CPUtime=0.07 cores=1,3,5,7
/proc/8486/stat : 8486 (sattime2011) R 8484 8486 7565 0 -1 4202496 391 0 0 0 7 0 0 0 24 0 1 0 770616259 1214308352 335 33554432000 4194304 4230460 140734929116848 18446744073709551615 4200560 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8486/statm: 296462 335 117 9 0 293619 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1185848

[startup+0.100898 s]
/proc/loadavg: 2.00 2.01 2.00 2/437 8486
/proc/meminfo: memFree=4673352/32951124 swapFree=51462112/67111528
[pid=8486] ppid=8484 vsize=1185848 CPUtime=0.1 cores=1,3,5,7
/proc/8486/stat : 8486 (sattime2011) R 8484 8486 7565 0 -1 4202496 391 0 0 0 10 0 0 0 24 0 1 0 770616259 1214308352 335 33554432000 4194304 4230460 140734929116848 18446744073709551615 4219854 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8486/statm: 296462 335 117 9 0 293619 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1185848

[startup+0.300859 s]
/proc/loadavg: 2.00 2.01 2.00 2/437 8486
/proc/meminfo: memFree=4673352/32951124 swapFree=51462112/67111528
[pid=8486] ppid=8484 vsize=1185848 CPUtime=0.3 cores=1,3,5,7
/proc/8486/stat : 8486 (sattime2011) R 8484 8486 7565 0 -1 4202496 391 0 0 0 30 0 0 0 25 0 1 0 770616259 1214308352 335 33554432000 4194304 4230460 140734929116848 18446744073709551615 4219843 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8486/statm: 296462 335 117 9 0 293619 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1185848

[startup+0.700779 s]
/proc/loadavg: 2.00 2.01 2.00 2/437 8486
/proc/meminfo: memFree=4673352/32951124 swapFree=51462112/67111528
[pid=8486] ppid=8484 vsize=1185848 CPUtime=0.7 cores=1,3,5,7
/proc/8486/stat : 8486 (sattime2011) R 8484 8486 7565 0 -1 4202496 391 0 0 0 70 0 0 0 25 0 1 0 770616259 1214308352 335 33554432000 4194304 4230460 140734929116848 18446744073709551615 4221549 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8486/statm: 296462 335 117 9 0 293619 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1185848

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

[startup+0.900738 s]
/proc/loadavg: 2.00 2.01 2.00 2/437 8486
/proc/meminfo: memFree=4673352/32951124 swapFree=51462112/67111528
[pid=8486] ppid=8484 vsize=1185848 CPUtime=0.9 cores=1,3,5,7
/proc/8486/stat : 8486 (sattime2011) R 8484 8486 7565 0 -1 4202496 391 0 0 0 90 0 0 0 25 0 1 0 770616259 1214308352 335 33554432000 4194304 4230460 140734929116848 18446744073709551615 4200296 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8486/statm: 296462 335 117 9 0 293619 0
Current children cumulated CPU time (s) 0.9
Current children cumulated vsize (KiB) 1185848

[startup+1.00073 s]
/proc/loadavg: 2.00 2.01 2.00 3/438 8487
/proc/meminfo: memFree=4670480/32951124 swapFree=51462112/67111528
[pid=8486] ppid=8484 vsize=1185848 CPUtime=1 cores=1,3,5,7
/proc/8486/stat : 8486 (sattime2011) R 8484 8486 7565 0 -1 4202496 391 0 0 0 100 0 0 0 25 0 1 0 770616259 1214308352 335 33554432000 4194304 4230460 140734929116848 18446744073709551615 4221244 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8486/statm: 296462 335 117 9 0 293619 0
Current children cumulated CPU time (s) 1
Current children cumulated vsize (KiB) 1185848

Child status: 10
Real time (s): 1.0517
CPU time (s): 1.05084
CPU user time (s): 1.05084
CPU system time (s): 0
CPU usage (%): 99.9184
Max. virtual memory (cumulated for all children) (KiB): 1185848

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.05084
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= 395
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 0.009998 second user time and 0.019996 second system time

The end

Launcher Data 

Begin job on node143 at 2011-05-30 21:00:06
IDJOB=3427007
IDBENCH=82979
IDSOLVER=1924
FILE ID=node143/3427007-1306782006
RUNJOBID= node143-1306777004-8266
PBS_JOBID= 13474981
Free space on /tmp= 56612 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v600-c2556-S2050053883-062.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3427007-1306782006/watcher-3427007-1306782006 -o /tmp/evaluation-result-3427007-1306782006/solver-3427007-1306782006 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3427007-1306782006.cnf 1551624552

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 7ed8e8e4deac31c88cbf5be40a0cd9c0
RANDOM SEED=1551624552

node143.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		: 2666.846
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	: 5333.69
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		: 2666.846
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		: 2666.846
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	: 5332.74
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		: 2666.846
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		: 2666.846
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		: 2666.846
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		: 2666.846
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	: 5332.74
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		: 2666.846
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:       4673632 kB
Buffers:        215172 kB
Cached:       19592656 kB
SwapCached:      12492 kB
Active:       14191392 kB
Inactive:     13369248 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:       4673632 kB
SwapTotal:    67111528 kB
SwapFree:     51462112 kB
Dirty:           15572 kB
Writeback:           0 kB
AnonPages:     7746904 kB
Mapped:          25532 kB
Slab:           570192 kB
PageTables:      79956 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 116859704 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= 56604 MiB
End job on node143 at 2011-05-30 21:00:08