Trace number 1522321

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
iPAWS 2009-03-22SAT 1.75673 1.75786

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/480/
unif-k3-r4.25-v480-c2040-S1528563858-100.cnf
MD5SUM54e149b7aa0d0382dd802169940f6ffe
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.278957
Satisfiable
(Un)Satisfiability was proved
Number of variables480
Number of clauses2040
Sum of the clauses size6120
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32040
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

1.69/1.75	s SATISFIABLE
1.69/1.75	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 0
1.69/1.75	c input file instance-1522321-1238589659.cnf, flips 1332510

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-1522321-1238589659/watcher-1522321-1238589659 -o /tmp/evaluation-result-1522321-1238589659/solver-1522321-1238589659 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/iPAWS HOME/instance-1522321-1238589659.cnf 583933606 

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: 1.99 1.85 1.45 3/64 15841
/proc/meminfo: memFree=1532592/2055920 swapFree=4178796/4192956
[pid=15841] ppid=15839 vsize=335916 CPUtime=0
/proc/15841/stat : 15841 (iPAWS) R 15839 15841 15286 0 -1 4194304 485 0 0 0 0 0 0 0 18 0 1 0 1131627755 343977984 469 1992294400 134512640 135114423 4294956208 18446744073709551615 134615614 0 0 4096 0 0 0 0 17 1 0 0
/proc/15841/statm: 83979 470 54 146 0 83831 0

[startup+0.024122 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 15841
/proc/meminfo: memFree=1532592/2055920 swapFree=4178796/4192956
[pid=15841] ppid=15839 vsize=335916 CPUtime=0.01
/proc/15841/stat : 15841 (iPAWS) R 15839 15841 15286 0 -1 4194304 930 0 0 0 1 0 0 0 18 0 1 0 1131627755 343977984 914 1992294400 134512640 135114423 4294956208 18446744073709551615 134515186 0 0 4096 0 0 0 0 17 1 0 0
/proc/15841/statm: 83979 914 57 146 0 83831 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 335916

[startup+0.101128 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 15841
/proc/meminfo: memFree=1532592/2055920 swapFree=4178796/4192956
[pid=15841] ppid=15839 vsize=335916 CPUtime=0.09
/proc/15841/stat : 15841 (iPAWS) R 15839 15841 15286 0 -1 4194304 930 0 0 0 9 0 0 0 18 0 1 0 1131627755 343977984 914 1992294400 134512640 135114423 4294956208 18446744073709551615 134514796 0 0 4096 0 0 0 0 17 1 0 0
/proc/15841/statm: 83979 914 57 146 0 83831 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 335916

[startup+0.301144 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 15841
/proc/meminfo: memFree=1532592/2055920 swapFree=4178796/4192956
[pid=15841] ppid=15839 vsize=335916 CPUtime=0.29
/proc/15841/stat : 15841 (iPAWS) R 15839 15841 15286 0 -1 4194304 930 0 0 0 29 0 0 0 19 0 1 0 1131627755 343977984 914 1992294400 134512640 135114423 4294956208 18446744073709551615 134551020 0 0 4096 0 0 0 0 17 1 0 0
/proc/15841/statm: 83979 914 57 146 0 83831 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 335916

[startup+0.701179 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 15841
/proc/meminfo: memFree=1532592/2055920 swapFree=4178796/4192956
[pid=15841] ppid=15839 vsize=335916 CPUtime=0.69
/proc/15841/stat : 15841 (iPAWS) R 15839 15841 15286 0 -1 4194304 930 0 0 0 69 0 0 0 22 0 1 0 1131627755 343977984 914 1992294400 134512640 135114423 4294956208 18446744073709551615 134516646 0 0 4096 0 0 0 0 17 1 0 0
/proc/15841/statm: 83979 914 57 146 0 83831 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 335916

[startup+1.50125 s]
/proc/loadavg: 1.99 1.85 1.45 2/65 15842
/proc/meminfo: memFree=1529000/2055920 swapFree=4178796/4192956
[pid=15841] ppid=15839 vsize=335916 CPUtime=1.49
/proc/15841/stat : 15841 (iPAWS) R 15839 15841 15286 0 -1 4194304 930 0 0 0 149 0 0 0 25 0 1 0 1131627755 343977984 914 1992294400 134512640 135114423 4294956208 18446744073709551615 134516770 0 0 4096 0 0 0 0 17 1 0 0
/proc/15841/statm: 83979 914 57 146 0 83831 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 335916

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

[startup+1.70127 s]
/proc/loadavg: 1.99 1.85 1.45 2/65 15842
/proc/meminfo: memFree=1529000/2055920 swapFree=4178796/4192956
[pid=15841] ppid=15839 vsize=335916 CPUtime=1.69
/proc/15841/stat : 15841 (iPAWS) R 15839 15841 15286 0 -1 4194304 930 0 0 0 169 0 0 0 25 0 1 0 1131627755 343977984 914 1992294400 134512640 135114423 4294956208 18446744073709551615 134546153 0 0 4096 0 0 0 0 17 1 0 0
/proc/15841/statm: 83979 914 57 146 0 83831 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 335916

Child status: 0
Real time (s): 1.75786
CPU time (s): 1.75673
CPU user time (s): 1.75073
CPU system time (s): 0.005999
CPU usage (%): 99.9356
Max. virtual memory (cumulated for all children) (KiB): 335916

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.75073
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= 938
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 0.004999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node57 at 2009-04-01 14:40:59
IDJOB=1522321
IDBENCH=70716
IDSOLVER=516
FILE ID=node57/1522321-1238589659
PBS_JOBID= 9062217
Free space on /tmp= 66264 MiB

SOLVER NAME= iPAWS 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/480/unif-k3-r4.25-v480-c2040-S1528563858-100.cnf
COMMAND LINE= HOME/iPAWS BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1522321-1238589659/watcher-1522321-1238589659 -o /tmp/evaluation-result-1522321-1238589659/solver-1522321-1238589659 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/iPAWS HOME/instance-1522321-1238589659.cnf 583933606

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

MD5SUM BENCH= 54e149b7aa0d0382dd802169940f6ffe
RANDOM SEED=583933606

node57.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		: 3000.213
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		: 3000.213
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:       1533008 kB
Buffers:         90168 kB
Cached:         337856 kB
SwapCached:       7992 kB
Active:         215648 kB
Inactive:       221864 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1533008 kB
SwapTotal:     4192956 kB
SwapFree:      4178796 kB
Dirty:             704 kB
Writeback:           0 kB
Mapped:          15140 kB
Slab:            71460 kB
Committed_AS:  2766676 kB
PageTables:       1392 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= 66264 MiB
End job on node57 at 2009-04-01 14:41:01