Trace number 3427085

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 0.012997 0.0185339

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v550-c2343-S1940049314-069.SATISFIABLE.cnf
MD5SUMc3d1d9237da00564d672945308bcff7c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.006998
Satisfiable
(Un)Satisfiability was proved
Number of variables550
Number of clauses2343
Sum of the clauses size7029
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32343
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.01	c 0 clauses are redundant and removed
0.00/0.01	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.01	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.01	c initial seed is 1126140773
0.00/0.01	c try=1 flip j=16321 walk=13923 seed 1126140790
0.00/0.01	c A solution is found
0.00/0.01	s SATISFIABLE
0.00/0.01	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 
0.00/0.01	v 0 
0.00/0.01	c Done (mycputime is 0 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-3427085-1306783809/watcher-3427085-1306783809 -o /tmp/evaluation-result-3427085-1306783809/solver-3427085-1306783809 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3427085-1306783809.cnf 1126137316 

running on 4 cores: 0,2,4,6

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: 1.92 2.00 1.99 3/484 30533
/proc/meminfo: memFree=3476140/32951124 swapFree=63649292/67111528
[pid=30533] ppid=30531 vsize=0 CPUtime=0.01 cores=0,2,4,6
/proc/30533/stat : 30533 (sattime2011) Z 30531 30533 29397 0 -1 4202524 384 0 0 0 1 0 0 0 22 0 1 0 789979435 0 0 33554432000 0 0 0 0 0 0 0 4096 0 18446744073709551615 0 0 17 2 0 0 0
/proc/30533/statm: 0 0 0 0 0 0 0

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

Child status: 10
Real time (s): 0.0185339
CPU time (s): 0.012997
CPU user time (s): 0.010998
CPU system time (s): 0.001999
CPU usage (%): 70.1254
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.010998
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 384
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 0.005999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node130 at 2011-05-30 21:30:09
IDJOB=3427085
IDBENCH=83057
IDSOLVER=1924
FILE ID=node130/3427085-1306783809
RUNJOBID= node130-1306783809-30518
PBS_JOBID= 13474993
Free space on /tmp= 55392 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v550-c2343-S1940049314-069.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3427085-1306783809/watcher-3427085-1306783809 -o /tmp/evaluation-result-3427085-1306783809/solver-3427085-1306783809 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3427085-1306783809.cnf 1126137316

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

MD5SUM BENCH= c3d1d9237da00564d672945308bcff7c
RANDOM SEED=1126137316

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:       3476296 kB
Buffers:        358612 kB
Cached:       23557332 kB
SwapCached:      10120 kB
Active:       20706488 kB
Inactive:      7990116 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:       3476296 kB
SwapTotal:    67111528 kB
SwapFree:     63649292 kB
Dirty:           15624 kB
Writeback:           0 kB
AnonPages:     4778888 kB
Mapped:          30308 kB
Slab:           657544 kB
PageTables:      53768 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 145069068 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= 55376 MiB
End job on node130 at 2011-05-30 21:30:09