Trace number 298408

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, and are wall clock time (not CPU 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
Hybrid1 2007-02-08SAT 1.41878 1.42155

General information on the benchmark

Namerandom/OnTreshold/3SAT/v500/
unif-k3-r4.26-v500-c2130-S1736865558-13.SAT.shuffled.cnf
MD5SUM3731b562515f41a5190f82ea078ee6c1
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.06299
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 (download as text)

1.33/1.42	c try 1 flip j 955493
1.33/1.42	c A solution is found
1.33/1.42	s SATISFIABLE
1.33/1.42	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 
1.33/1.42	v 0 
1.33/1.42	c Done (mycputime is 0.000 seconds)

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node19/watcher-298408-1171855680 -o ROOT/results/node19/solver-298408-1171855680 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/298408-1171855680/Hybrid1 /tmp/evaluation/298408-1171855680/instance-298408-1171855680.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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 3/77 29241
/proc/meminfo: memFree=1383152/2055920 swapFree=4192812/4192956
[pid=29241] ppid=29239 vsize=244848 CPUtime=0
/proc/29241/stat : 29241 (Hybrid1) R 29239 29241 28344 0 -1 4194304 129 0 0 0 0 0 0 0 18 0 1 0 205522025 250724352 112 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134523462 0 0 4096 0 0 0 0 17 1 0 0
/proc/29241/statm: 61212 112 40 103 0 60716 0

[startup+0.107074 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 29241
/proc/meminfo: memFree=1383152/2055920 swapFree=4192812/4192956
[pid=29241] ppid=29239 vsize=246400 CPUtime=0.1
/proc/29241/stat : 29241 (Hybrid1) R 29239 29241 28344 0 -1 4194304 203 0 0 0 10 0 0 0 18 0 1 0 205522025 252313600 183 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134544951 0 0 4096 0 0 0 0 17 1 0 0
/proc/29241/statm: 61600 183 44 103 0 61104 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 246400

[startup+0.515116 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 29241
/proc/meminfo: memFree=1383152/2055920 swapFree=4192812/4192956
[pid=29241] ppid=29239 vsize=246400 CPUtime=0.51
/proc/29241/stat : 29241 (Hybrid1) R 29239 29241 28344 0 -1 4194304 203 0 0 0 51 0 0 0 22 0 1 0 205522025 252313600 183 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134551529 0 0 4096 0 0 0 0 17 1 0 0
/proc/29241/statm: 61600 183 44 103 0 61104 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 246400

[startup+1.33521 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 29242
/proc/meminfo: memFree=1382376/2055920 swapFree=4192812/4192956
[pid=29241] ppid=29239 vsize=246400 CPUtime=1.33
/proc/29241/stat : 29241 (Hybrid1) R 29239 29241 28344 0 -1 4194304 203 0 0 0 133 0 0 0 25 0 1 0 205522025 252313600 183 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134546299 0 0 4096 0 0 0 0 17 1 0 0
/proc/29241/statm: 61600 183 44 103 0 61104 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 246400

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

[startup+1.33521 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 29242
/proc/meminfo: memFree=1382376/2055920 swapFree=4192812/4192956
[pid=29241] ppid=29239 vsize=246400 CPUtime=1.33
/proc/29241/stat : 29241 (Hybrid1) R 29239 29241 28344 0 -1 4194304 203 0 0 0 133 0 0 0 25 0 1 0 205522025 252313600 183 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134546299 0 0 4096 0 0 0 0 17 1 0 0
/proc/29241/statm: 61600 183 44 103 0 61104 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 246400

Child status: 10
Real time (s): 1.42155
CPU time (s): 1.41878
CPU user time (s): 1.41578
CPU system time (s): 0.002999
CPU usage (%): 99.8051
Max. virtual memory (cumulated for all children) (KiB): 246400

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.41578
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 216
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= 8
involuntary context switches= 27

runsolver used 0.001999 second user time and 0.009998 second system time

The end

Launcher Data (download as text)

Begin job on node19 on Mon Feb 19 03:28:00 UTC 2007

IDJOB= 298408
IDBENCH= 19985
IDSOLVER= 115
FILE ID= node19/298408-1171855680

PBS_JOBID= 3839407

Free space on /tmp= 66540 MiB

SOLVER NAME= Hybrid1 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v500/unif-k3-r4.26-v500-c2130-S1736865558-13.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/298408-1171855680/Hybrid1 /tmp/evaluation/298408-1171855680/instance-298408-1171855680.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node19/watcher-298408-1171855680 -o ROOT/results/node19/solver-298408-1171855680 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/298408-1171855680/Hybrid1 /tmp/evaluation/298408-1171855680/instance-298408-1171855680.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  3731b562515f41a5190f82ea078ee6c1

RANDOM SEED= 300969

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node19.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.214
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	: 5931.00
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		: 3000.214
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:       1383560 kB
Buffers:         55688 kB
Cached:         499532 kB
SwapCached:          0 kB
Active:         286988 kB
Inactive:       311812 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1383560 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            6164 kB
Writeback:           0 kB
Mapped:          62512 kB
Slab:            59108 kB
Committed_AS:   846540 kB
PageTables:       1756 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= 66540 MiB

End job on node19 on Mon Feb 19 03:28:02 UTC 2007