Trace number 3169778

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 0.025995 0.047866

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v500-c2130-S31329941-054.SATISFIABLE.cnf
MD5SUM9b739128337f606a6a7756556c2fd6df
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.009998
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 

0.00/0.04	c 0 clauses are redundant and removed
0.00/0.04	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.04	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.04	c initial seed is 299493014
0.00/0.04	c try=1 flip j=39304 walk=34930 seed 299493031
0.00/0.04	c A solution is found
0.00/0.04	s SATISFIABLE
0.00/0.04	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 
0.00/0.04	v 0 
0.00/0.04	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-3169778-1307635915/watcher-3169778-1307635915 -o /tmp/evaluation-result-3169778-1307635915/solver-3169778-1307635915 -C 2400 -W 1300 -M 7680 sattime+ HOME/instance-3169778-1307635915.cnf 299492901 

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: 4.17 4.02 3.57 4/187 10375
/proc/meminfo: memFree=31847872/32951132 swapFree=67054608/67111528
[pid=10375] ppid=10373 vsize=11796 CPUtime=0 cores=5,7
/proc/10375/stat : 10375 (runsolver) S 10373 10375 9702 0 -1 4202560 42 0 0 0 0 0 0 0 25 0 1 0 875191182 12079104 50 33554432000 4194304 5432328 140737240510496 18446744073709551615 4881591 0 2147483391 4096 24578 18446744071699870519 0 0 17 5 0 0 0
/proc/10375/statm: 2949 50 31 303 0 2643 0

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

Child status: 10
Real time (s): 0.047866
CPU time (s): 0.025995
CPU user time (s): 0.019996
CPU system time (s): 0.005999
CPU usage (%): 54.3078
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.019996
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 336
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= 3
involuntary context switches= 2

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node131 at 2011-06-09 18:11:55
IDJOB=3169778
IDBENCH=82796
IDSOLVER=1579
FILE ID=node131/3169778-1307635915
RUNJOBID= node131-1307634601-9997
PBS_JOBID= 13549361
Free space on /tmp= 74096 MiB

SOLVER NAME= sattime+ 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v500-c2130-S31329941-054.SATISFIABLE.cnf
COMMAND LINE= sattime+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3169778-1307635915/watcher-3169778-1307635915 -o /tmp/evaluation-result-3169778-1307635915/solver-3169778-1307635915 -C 2400 -W 1300 -M 7680  sattime+ HOME/instance-3169778-1307635915.cnf 299492901

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

MD5SUM BENCH= 9b739128337f606a6a7756556c2fd6df
RANDOM SEED=299492901

node131.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		: 2666.830
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	: 5333.66
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		: 2666.830
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		: 2666.830
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	: 5332.83
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		: 2666.830
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		: 2666.830
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	: 5332.77
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		: 2666.830
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		: 2666.830
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		: 2666.830
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:     32951132 kB
MemFree:      31848536 kB
Buffers:        208768 kB
Cached:         619596 kB
SwapCached:       9768 kB
Active:         352628 kB
Inactive:       501208 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      31848536 kB
SwapTotal:    67111528 kB
SwapFree:     67054608 kB
Dirty:           31824 kB
Writeback:          16 kB
AnonPages:       24020 kB
Mapped:          13328 kB
Slab:           184724 kB
PageTables:       5480 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS:  2887544 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= 74088 MiB
End job on node131 at 2011-06-09 18:11:56