Trace number 1521761

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
MoRsat 2009-03-03SAT 0.031994 0.0323721

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/460/
unif-k3-r4.25-v460-c1955-S1733990810-090.cnf
MD5SUMcc65c4677bcd52e268abf185559aaea4
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.006998
Satisfiable
(Un)Satisfiability was proved
Number of variables460
Number of clauses1955
Sum of the clauses size5865
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31955
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c MoRsat version 1.02 2009.03 
0.00/0.01	c atom#=460 clause#=1955 total literals=5865 
0.00/0.03	c Solution Verified
0.00/0.03	c CNF stats: (460 vars, 1955 clauses) 
0.00/0.03	c 
0.00/0.03	s SATISFIABLE
0.00/0.03	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 0
0.00/0.03	c 
0.00/0.03	c Running time: 0.02900 seconds

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1521761-1238593195/watcher-1521761-1238593195 -o /tmp/evaluation-result-1521761-1238593195/solver-1521761-1238593195 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/MoRsat HOME/instance-1521761-1238593195.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 25538
/proc/meminfo: memFree=1114440/2055920 swapFree=4176924/4192956
[pid=25538] ppid=25536 vsize=1324 CPUtime=0
/proc/25538/stat : 25538 (MoRsat) R 25536 25538 24992 0 -1 4194304 160 0 0 0 0 0 0 0 18 0 1 0 1131984400 1355776 143 1992294400 134512640 135679800 4294956224 18446744073709551615 134565415 0 0 4096 1026 0 0 0 17 1 0 0
/proc/25538/statm: 331 143 107 284 0 44 0

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

Child status: 10
Real time (s): 0.0323721
CPU time (s): 0.031994
CPU user time (s): 0.030995
CPU system time (s): 0.000999
CPU usage (%): 98.8321
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.030995
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= 248
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 0.001999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node35 at 2009-04-01 15:39:55
IDJOB=1521761
IDBENCH=70726
IDSOLVER=502
FILE ID=node35/1521761-1238593195
PBS_JOBID= 9062231
Free space on /tmp= 66504 MiB

SOLVER NAME= MoRsat 2009-03-03
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/460/unif-k3-r4.25-v460-c1955-S1733990810-090.cnf
COMMAND LINE= HOME/MoRsat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1521761-1238593195/watcher-1521761-1238593195 -o /tmp/evaluation-result-1521761-1238593195/solver-1521761-1238593195 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/MoRsat HOME/instance-1521761-1238593195.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= cc65c4677bcd52e268abf185559aaea4
RANDOM SEED=767114523

node35.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.229
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.229
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1114856 kB
Buffers:        110880 kB
Cached:         724424 kB
SwapCached:      10140 kB
Active:         317380 kB
Inactive:       529636 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1114856 kB
SwapTotal:     4192956 kB
SwapFree:      4176924 kB
Dirty:            1428 kB
Writeback:           0 kB
Mapped:          17524 kB
Slab:            80064 kB
Committed_AS:  2853876 kB
PageTables:       1404 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66500 MiB
End job on node35 at 2009-04-01 15:39:55