Trace number 3426948

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 0.035994 0.0354029

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v550-c2343-S1114532273-035.SATISFIABLE.cnf
MD5SUMff7e731e0657a2728f5ff73a4fd8bb2e
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.015997
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 

0.02/0.03	c 0 clauses are redundant and removed
0.02/0.03	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.02/0.03	c 0 vars are fixed and 0 clauses are removed after lookahead
0.02/0.03	c initial seed is 2002746794
0.02/0.03	c try=1 flip j=64252 walk=55957 seed 2002746811
0.02/0.03	c A solution is found
0.02/0.03	s SATISFIABLE
0.02/0.03	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 
0.02/0.03	v 0 
0.02/0.03	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-3426948-1306781783/watcher-3426948-1306781783 -o /tmp/evaluation-result-3426948-1306781783/solver-3426948-1306781783 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3426948-1306781783.cnf 2002743337 

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: 2.10 2.06 2.01 2/530 5010
/proc/meminfo: memFree=4653500/32951132 swapFree=51375980/67111528
[pid=5010] ppid=5008 vsize=1185716 CPUtime=0 cores=1,3,5,7
/proc/5010/stat : 5010 (sattime2011) R 5008 5010 4041 0 -1 4202496 380 0 0 0 0 0 0 0 22 0 1 0 789777017 1214173184 323 33554432000 4194304 4230460 140735798416176 18446744073709551615 4217925 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/5010/statm: 296429 323 117 9 0 293586 0

[startup+0.028029 s]
/proc/loadavg: 2.10 2.06 2.01 2/530 5010
/proc/meminfo: memFree=4653500/32951132 swapFree=51375980/67111528
[pid=5010] ppid=5008 vsize=1185716 CPUtime=0.02 cores=1,3,5,7
/proc/5010/stat : 5010 (sattime2011) R 5008 5010 4041 0 -1 4202496 380 0 0 0 2 0 0 0 22 0 1 0 789777017 1214173184 323 33554432000 4194304 4230460 140735798416176 18446744073709551615 4221475 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/5010/statm: 296429 323 117 9 0 293586 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1185716

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

[startup+0.028029 s]
/proc/loadavg: 2.10 2.06 2.01 2/530 5010
/proc/meminfo: memFree=4653500/32951132 swapFree=51375980/67111528
[pid=5010] ppid=5008 vsize=1185716 CPUtime=0.02 cores=1,3,5,7
/proc/5010/stat : 5010 (sattime2011) R 5008 5010 4041 0 -1 4202496 380 0 0 0 2 0 0 0 22 0 1 0 789777017 1214173184 323 33554432000 4194304 4230460 140735798416176 18446744073709551615 4221475 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/5010/statm: 296429 323 117 9 0 293586 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1185716

Child status: 10
Real time (s): 0.0354029
CPU time (s): 0.035994
CPU user time (s): 0.035994
CPU system time (s): 0
CPU usage (%): 101.67
Max. virtual memory (cumulated for all children) (KiB): 1185716

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.035994
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= 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= 2

runsolver used 0.003999 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node128 at 2011-05-30 20:56:24
IDJOB=3426948
IDBENCH=82920
IDSOLVER=1924
FILE ID=node128/3426948-1306781783
RUNJOBID= node128-1306781781-4910
PBS_JOBID= 13474996
Free space on /tmp= 69596 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v550-c2343-S1114532273-035.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3426948-1306781783/watcher-3426948-1306781783 -o /tmp/evaluation-result-3426948-1306781783/solver-3426948-1306781783 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3426948-1306781783.cnf 2002743337

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

MD5SUM BENCH= ff7e731e0657a2728f5ff73a4fd8bb2e
RANDOM SEED=2002743337

node128.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		: 2666.852
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		: 2666.852
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		: 2666.852
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		: 2666.852
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		: 2666.852
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	: 5332.82
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		: 2666.852
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		: 2666.852
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		: 2666.852
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	: 5434.49
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951132 kB
MemFree:       4653780 kB
Buffers:        279376 kB
Cached:        9206448 kB
SwapCached:      46012 kB
Active:       14424636 kB
Inactive:     13457648 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:       4653780 kB
SwapTotal:    67111528 kB
SwapFree:     51375980 kB
Dirty:           15856 kB
Writeback:           0 kB
AnonPages:    18360072 kB
Mapped:          18592 kB
Slab:           234272 kB
PageTables:     112368 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS: 175979372 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 69588 MiB
End job on node128 at 2011-05-30 20:56:24