Trace number 3170039

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
sattime+ 2011-03-02SAT 0.513921 0.513908

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 benchmark0.010998
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 

0.50/0.51	c 0 clauses are redundant and removed
0.50/0.51	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.50/0.51	c 0 vars are fixed and 0 clauses are removed after lookahead
0.50/0.51	c initial seed is 929986606
0.50/0.51	c try=1 flip j=1266829 walk=1134450 seed 929986623
0.50/0.51	c A solution is found
0.50/0.51	s SATISFIABLE
0.50/0.51	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 
0.50/0.51	v 0 
0.50/0.51	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: 977)

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-3170039-1307667311/watcher-3170039-1307667311 -o /tmp/evaluation-result-3170039-1307667311/solver-3170039-1307667311 -C 2400 -W 1300 -M 7680 sattime+ HOME/instance-3170039-1307667311.cnf 929986493 

running on 2 cores: 1,3

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 3.96 3.48 3/184 27223
/proc/meminfo: memFree=32002264/32951124 swapFree=67062556/67111528
[pid=27223] ppid=27221 vsize=881028 CPUtime=0 cores=1,3
/proc/27223/stat : 27223 (sattime+) R 27221 27223 26650 0 -1 4202496 342 0 0 0 0 0 0 0 25 0 1 0 956961587 902172672 284 33554432000 4194304 4228340 140736697730048 18446744073709551615 4217272 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27223/statm: 220257 284 116 9 0 217414 0

[startup+0.0608991 s]
/proc/loadavg: 4.00 3.96 3.48 3/184 27223
/proc/meminfo: memFree=32002264/32951124 swapFree=67062556/67111528
[pid=27223] ppid=27221 vsize=881028 CPUtime=0.06 cores=1,3
/proc/27223/stat : 27223 (sattime+) R 27221 27223 26650 0 -1 4202496 342 0 0 0 6 0 0 0 25 0 1 0 956961587 902172672 284 33554432000 4194304 4228340 140736697730048 18446744073709551615 4217700 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27223/statm: 220257 284 116 9 0 217414 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 881028

[startup+0.100889 s]
/proc/loadavg: 4.00 3.96 3.48 3/184 27223
/proc/meminfo: memFree=32002264/32951124 swapFree=67062556/67111528
[pid=27223] ppid=27221 vsize=881028 CPUtime=0.1 cores=1,3
/proc/27223/stat : 27223 (sattime+) R 27221 27223 26650 0 -1 4202496 342 0 0 0 10 0 0 0 25 0 1 0 956961587 902172672 284 33554432000 4194304 4228340 140736697730048 18446744073709551615 4217336 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27223/statm: 220257 284 116 9 0 217414 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 881028

[startup+0.300851 s]
/proc/loadavg: 4.00 3.96 3.48 3/184 27223
/proc/meminfo: memFree=32002264/32951124 swapFree=67062556/67111528
[pid=27223] ppid=27221 vsize=881028 CPUtime=0.3 cores=1,3
/proc/27223/stat : 27223 (sattime+) R 27221 27223 26650 0 -1 4202496 342 0 0 0 30 0 0 0 25 0 1 0 956961587 902172672 284 33554432000 4194304 4228340 140736697730048 18446744073709551615 4217278 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27223/statm: 220257 284 116 9 0 217414 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 881028

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

[startup+0.500815 s]
/proc/loadavg: 4.00 3.96 3.48 3/184 27223
/proc/meminfo: memFree=32002264/32951124 swapFree=67062556/67111528
[pid=27223] ppid=27221 vsize=881028 CPUtime=0.5 cores=1,3
/proc/27223/stat : 27223 (sattime+) R 27221 27223 26650 0 -1 4202496 342 0 0 0 50 0 0 0 25 0 1 0 956961587 902172672 284 33554432000 4194304 4228340 140736697730048 18446744073709551615 4218815 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27223/statm: 220257 284 116 9 0 217414 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 881028

Child status: 10
Real time (s): 0.513908
CPU time (s): 0.513921
CPU user time (s): 0.512922
CPU system time (s): 0.000999
CPU usage (%): 100.003
Max. virtual memory (cumulated for all children) (KiB): 881028

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.512922
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= 3

runsolver used 0.001999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node111 at 2011-06-10 02:55:11
IDJOB=3170039
IDBENCH=83057
IDSOLVER=1579
FILE ID=node111/3170039-1307667311
RUNJOBID= node111-1307666008-26670
PBS_JOBID= 13549468
Free space on /tmp= 74108 MiB

SOLVER NAME= sattime+ 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v550-c2343-S1940049314-069.SATISFIABLE.cnf
COMMAND LINE= sattime+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3170039-1307667311/watcher-3170039-1307667311 -o /tmp/evaluation-result-3170039-1307667311/solver-3170039-1307667311 -C 2400 -W 1300 -M 7680  sattime+ HOME/instance-3170039-1307667311.cnf 929986493

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

MD5SUM BENCH= c3d1d9237da00564d672945308bcff7c
RANDOM SEED=929986493

node111.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		: 2666.849
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		: 2666.849
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	: 5428.12
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		: 2666.849
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		: 2666.849
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		: 2666.849
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		: 2666.849
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		: 2666.849
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	: 5332.67
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		: 2666.849
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:      32002568 kB
Buffers:        245604 kB
Cached:         460320 kB
SwapCached:      11232 kB
Active:         388048 kB
Inactive:       340740 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      32002568 kB
SwapTotal:    67111528 kB
SwapFree:     67062556 kB
Dirty:           15552 kB
Writeback:           0 kB
AnonPages:       20616 kB
Mapped:          10308 kB
Slab:           154464 kB
PageTables:       4840 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  1990444 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= 74108 MiB
End job on node111 at 2011-06-10 02:55:12