Trace number 1521732

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 0.049992 0.0505921

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/440/
unif-k3-r4.25-v440-c1870-S1112524719-021.cnf
MD5SUM91e05b0ecb05a962d8527635e6de2e78
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.021995
Satisfiable
(Un)Satisfiability was proved
Number of variables440
Number of clauses1870
Sum of the clauses size5610
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31870
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#=440 clause#=1870 total literals=5610 
0.00/0.05	c Solution Verified
0.00/0.05	c CNF stats: (440 vars, 1870 clauses) 
0.00/0.05	c 
0.00/0.05	s SATISFIABLE
0.00/0.05	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 0
0.00/0.05	c 
0.00/0.05	c Running time: 0.04699 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-1521732-1238583184/watcher-1521732-1238583184 -o /tmp/evaluation-result-1521732-1238583184/solver-1521732-1238583184 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/MoRsat HOME/instance-1521732-1238583184.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: 1.26 1.97 1.96 3/69 30543
/proc/meminfo: memFree=1220064/2055920 swapFree=4171840/4192956
[pid=30543] ppid=30541 vsize=1496 CPUtime=0
/proc/30543/stat : 30543 (MoRsat) R 30541 30543 30089 0 -1 4194304 162 0 0 0 0 0 0 0 18 0 1 0 1130980101 1531904 145 1992294400 134512640 135679800 4294956224 18446744073709551615 134561551 0 0 4096 1026 0 0 0 17 1 0 0
/proc/30543/statm: 374 145 107 284 0 87 0

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

Child status: 10
Real time (s): 0.0505921
CPU time (s): 0.049992
CPU user time (s): 0.049992
CPU system time (s): 0
CPU usage (%): 98.8138
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.049992
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= 244
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 0.007998 second system time

The end

Launcher Data 

Begin job on node58 at 2009-04-01 12:53:04
IDJOB=1521732
IDBENCH=70697
IDSOLVER=502
FILE ID=node58/1521732-1238583184
PBS_JOBID= 9062219
Free space on /tmp= 66400 MiB

SOLVER NAME= MoRsat 2009-03-03
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/440/unif-k3-r4.25-v440-c1870-S1112524719-021.cnf
COMMAND LINE= HOME/MoRsat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1521732-1238583184/watcher-1521732-1238583184 -o /tmp/evaluation-result-1521732-1238583184/solver-1521732-1238583184 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/MoRsat HOME/instance-1521732-1238583184.cnf

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

MD5SUM BENCH= 91e05b0ecb05a962d8527635e6de2e78
RANDOM SEED=623418507

node58.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		: 3000.222
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		: 3000.222
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:       1220480 kB
Buffers:         97264 kB
Cached:         646696 kB
SwapCached:      11044 kB
Active:         210680 kB
Inactive:       545832 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1220480 kB
SwapTotal:     4192956 kB
SwapFree:      4171840 kB
Dirty:            1428 kB
Writeback:           0 kB
Mapped:          17416 kB
Slab:            64372 kB
Committed_AS:  2747580 kB
PageTables:       1764 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= 66400 MiB
End job on node58 at 2009-04-01 12:53:04