Trace number 3169302

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
shortsattime+ 2011-03-02SAT 0.774881 0.779489

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 benchmark0.007998
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 

0.69/0.77	c 0 clauses are redundant and removed
0.69/0.77	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.69/0.77	c 0 vars are fixed and 0 clauses are removed after lookahead
0.69/0.77	c initial seed is 1277025831
0.69/0.77	c try=1 flip j=1807290 walk=1597161 seed 1277025848
0.69/0.77	c A solution is found
0.69/0.77	s SATISFIABLE
0.69/0.77	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 
0.69/0.77	v 0 
0.69/0.77	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-3169302-1301695756/watcher-3169302-1301695756 -o /tmp/evaluation-result-3169302-1301695756/solver-3169302-1301695756 -C 2400 -W 1300 -M 7680 shortsattime+ HOME/instance-3169302-1301695756.cnf 1277025604 

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: 4.02 4.01 3.93 4/189 10709
/proc/meminfo: memFree=20650136/32950928 swapFree=67111528/67111528
[pid=10709] ppid=10707 vsize=880764 CPUtime=0 cores=5,7
/proc/10709/stat : 10709 (shortsattime+) R 10707 10709 9846 0 -1 4194304 210 0 0 0 0 0 0 0 25 0 1 0 281175269 901902336 153 33554432000 4194304 4228340 140733742774192 18446744073709551615 4202878 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/10709/statm: 220191 153 102 9 0 217348 0

[startup+0.0575341 s]
/proc/loadavg: 4.02 4.01 3.93 4/189 10709
/proc/meminfo: memFree=20650136/32950928 swapFree=67111528/67111528
[pid=10709] ppid=10707 vsize=881028 CPUtime=0.05 cores=5,7
/proc/10709/stat : 10709 (shortsattime+) R 10707 10709 9846 0 -1 4202496 342 0 0 0 5 0 0 0 25 0 1 0 281175269 902172672 283 33554432000 4194304 4228340 140733742774192 18446744073709551615 4214592 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/10709/statm: 220257 283 116 9 0 217414 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 881028

[startup+0.100526 s]
/proc/loadavg: 4.02 4.01 3.93 4/189 10709
/proc/meminfo: memFree=20650136/32950928 swapFree=67111528/67111528
[pid=10709] ppid=10707 vsize=881028 CPUtime=0.09 cores=5,7
/proc/10709/stat : 10709 (shortsattime+) R 10707 10709 9846 0 -1 4202496 342 0 0 0 9 0 0 0 25 0 1 0 281175269 902172672 283 33554432000 4194304 4228340 140733742774192 18446744073709551615 4219006 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/10709/statm: 220257 283 116 9 0 217414 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 881028

[startup+0.300487 s]
/proc/loadavg: 4.02 4.01 3.93 4/189 10709
/proc/meminfo: memFree=20650136/32950928 swapFree=67111528/67111528
[pid=10709] ppid=10707 vsize=881028 CPUtime=0.29 cores=5,7
/proc/10709/stat : 10709 (shortsattime+) R 10707 10709 9846 0 -1 4202496 342 0 0 0 29 0 0 0 25 0 1 0 281175269 902172672 283 33554432000 4194304 4228340 140733742774192 18446744073709551615 4196480 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/10709/statm: 220257 283 116 9 0 217414 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 881028

[startup+0.700411 s]
/proc/loadavg: 4.02 4.01 3.93 4/189 10709
/proc/meminfo: memFree=20650136/32950928 swapFree=67111528/67111528
[pid=10709] ppid=10707 vsize=881028 CPUtime=0.69 cores=5,7
/proc/10709/stat : 10709 (shortsattime+) R 10707 10709 9846 0 -1 4202496 342 0 0 0 69 0 0 0 25 0 1 0 281175269 902172672 283 33554432000 4194304 4228340 140733742774192 18446744073709551615 4214720 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/10709/statm: 220257 283 116 9 0 217414 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 881028

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

Child status: 10
Real time (s): 0.779489
CPU time (s): 0.774881
CPU user time (s): 0.773882
CPU system time (s): 0.000999
CPU usage (%): 99.4089
Max. virtual memory (cumulated for all children) (KiB): 881028

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.773882
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= 346
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= 0

runsolver used 0.000999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node127 at 2011-04-02 00:09:16
IDJOB=3169302
IDBENCH=82920
IDSOLVER=1578
FILE ID=node127/3169302-1301695756
RUNJOBID= node127-1301690421-9867
PBS_JOBID= 12840709
Free space on /tmp= 71076 MiB

SOLVER NAME= shortsattime+ 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v550-c2343-S1114532273-035.SATISFIABLE.cnf
COMMAND LINE= shortsattime+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3169302-1301695756/watcher-3169302-1301695756 -o /tmp/evaluation-result-3169302-1301695756/solver-3169302-1301695756 -C 2400 -W 1300 -M 7680  shortsattime+ HOME/instance-3169302-1301695756.cnf 1277025604

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

MD5SUM BENCH= ff7e731e0657a2728f5ff73a4fd8bb2e
RANDOM SEED=1277025604

node127.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		: 2666.823
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	: 5333.64
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		: 2666.823
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		: 2666.823
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		: 2666.823
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	: 5332.86
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		: 2666.823
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		: 2666.823
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		: 2666.823
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	: 5332.60
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		: 2666.823
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:     32950928 kB
MemFree:      20650292 kB
Buffers:        346096 kB
Cached:       11609528 kB
SwapCached:          0 kB
Active:        6708848 kB
Inactive:      5315540 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      20650292 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            7816 kB
Writeback:           0 kB
AnonPages:       68556 kB
Mapped:          15308 kB
Slab:           213060 kB
PageTables:       5676 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:  2882892 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= 71068 MiB
End job on node127 at 2011-04-02 00:09:17