Trace number 3154570

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 0.19097 0.191988

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v500-c2130-S204737200-067.SATISFIABLE.cnf
MD5SUMc8e689035f3179f449d681054feb5bd2
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.005999
Satisfiable
(Un)Satisfiability was proved
Number of variables500
Number of clauses2130
Sum of the clauses size6390
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32130
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.09/0.19	c 0 clauses are redundant and removed
0.09/0.19	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.09/0.19	c 0 vars are fixed and 0 clauses are removed after lookahead
0.09/0.19	c initial seed is 1924411062
0.09/0.19	c try=1 flip j=442804 walk=389848 seed 1924411079
0.09/0.19	c A solution is found
0.09/0.19	s SATISFIABLE
0.09/0.19	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 
0.09/0.19	v 0 
0.09/0.19	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-3154570-1301685289/watcher-3154570-1301685289 -o /tmp/evaluation-result-3154570-1301685289/solver-3154570-1301685289 -C 2400 -W 1300 -M 7680 sattime HOME/instance-3154570-1301685289.cnf 1924411062 

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: 1.09 1.95 2.89 4/184 27247
/proc/meminfo: memFree=22646212/32950928 swapFree=67111528/67111528
[pid=27247] ppid=27245 vsize=990404 CPUtime=0 cores=5,7
/proc/27247/stat : 27247 (sattime) R 27245 27247 25900 0 -1 4202496 358 0 0 0 0 0 0 0 24 0 1 0 358759593 1014173696 298 33554432000 4194304 4228548 140733752437024 18446744073709551615 4219035 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/27247/statm: 247601 298 116 9 0 244758 0

[startup+0.0582329 s]
/proc/loadavg: 1.09 1.95 2.89 4/184 27247
/proc/meminfo: memFree=22646212/32950928 swapFree=67111528/67111528
[pid=27247] ppid=27245 vsize=990404 CPUtime=0.05 cores=5,7
/proc/27247/stat : 27247 (sattime) R 27245 27247 25900 0 -1 4202496 358 0 0 0 5 0 0 0 24 0 1 0 358759593 1014173696 298 33554432000 4194304 4228548 140733752437024 18446744073709551615 4216903 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/27247/statm: 247601 298 116 9 0 244758 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 990404

[startup+0.100221 s]
/proc/loadavg: 1.09 1.95 2.89 4/184 27247
/proc/meminfo: memFree=22646212/32950928 swapFree=67111528/67111528
[pid=27247] ppid=27245 vsize=990404 CPUtime=0.09 cores=5,7
/proc/27247/stat : 27247 (sattime) R 27245 27247 25900 0 -1 4202496 358 0 0 0 9 0 0 0 24 0 1 0 358759593 1014173696 298 33554432000 4194304 4228548 140733752437024 18446744073709551615 4217552 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/27247/statm: 247601 298 116 9 0 244758 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 990404

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

Child status: 10
Real time (s): 0.191988
CPU time (s): 0.19097
CPU user time (s): 0.19097
CPU system time (s): 0
CPU usage (%): 99.4697
Max. virtual memory (cumulated for all children) (KiB): 990404

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.19097
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= 362
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 0.001999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node113 at 2011-04-01 21:14:49
IDJOB=3154570
IDBENCH=83077
IDSOLVER=1564
FILE ID=node113/3154570-1301685289
RUNJOBID= node113-1301685289-27213
PBS_JOBID= 12840584
Free space on /tmp= 70052 MiB

SOLVER NAME= sattime 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v500-c2130-S204737200-067.SATISFIABLE.cnf
COMMAND LINE= sattime BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3154570-1301685289/watcher-3154570-1301685289 -o /tmp/evaluation-result-3154570-1301685289/solver-3154570-1301685289 -C 2400 -W 1300 -M 7680  sattime HOME/instance-3154570-1301685289.cnf 1924411062

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

MD5SUM BENCH= c8e689035f3179f449d681054feb5bd2
RANDOM SEED=1924411062

node113.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	: 5332.76
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	: 5332.75
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		: 2666.846
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	: 5332.74
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	: 5332.75
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		: 2666.846
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	: 5332.83
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	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      22646244 kB
Buffers:        295784 kB
Cached:        9644516 kB
SwapCached:          0 kB
Active:        6232984 kB
Inactive:      3773596 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      22646244 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           31068 kB
Writeback:           0 kB
AnonPages:       66352 kB
Mapped:          14996 kB
Slab:           233964 kB
PageTables:       5876 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:  2205668 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= 70040 MiB
End job on node113 at 2011-04-01 21:14:49