Trace number 1534853

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
adaptg2wsat2009++ 2009-03-23SAT 0.014996 0.015708

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/360/
unif-k3-r4.25-v360-c1530-S1826927554-087.cnf
MD5SUM0b7c656709bcc63999a07f86368ab57c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.007998
Satisfiable
(Un)Satisfiability was proved
Number of variables360
Number of clauses1530
Sum of the clauses size4590
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31530
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.01	c 0 clauses are redundant and removed
0.00/0.01	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.01	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.01	c initial seed is 560935913
0.00/0.01	c try 1 flip j 7180 walk 6074 seed 1476275196
0.00/0.01	c A solution is found
0.00/0.01	s SATISFIABLE
0.00/0.01	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 
0.00/0.01	v 0 
0.00/0.01	c Done (mycputime is 0.010 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-1534853-1238598929/watcher-1534853-1238598929 -o /tmp/evaluation-result-1534853-1238598929/solver-1534853-1238598929 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/adaptg2wsat2009++ HOME/instance-1534853-1238598929.cnf 560935913 

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: 1.00 1.00 1.00 3/64 19332
/proc/meminfo: memFree=1059344/2055920 swapFree=4181692/4192956
[pid=19332] ppid=19330 vsize=415796 CPUtime=0
/proc/19332/stat : 19332 (adaptg2wsat2009) R 19330 19332 18889 0 -1 4194304 131 0 0 0 0 0 0 0 18 0 1 0 304094281 425775104 114 1992294400 134512640 135107411 4294956192 18446744073709551615 134523308 0 0 4096 0 0 0 0 17 1 0 0
/proc/19332/statm: 103949 114 49 145 0 102825 0

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

Child status: 10
Real time (s): 0.015708
CPU time (s): 0.014996
CPU user time (s): 0.013997
CPU system time (s): 0.000999
CPU usage (%): 95.467
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.013997
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= 199
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 0.003999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node42 at 2009-04-01 17:15:29
IDJOB=1534853
IDBENCH=70744
IDSOLVER=543
FILE ID=node42/1534853-1238598929
PBS_JOBID= 9068330
Free space on /tmp= 66248 MiB

SOLVER NAME= adaptg2wsat2009++ 2009-03-23
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/360/unif-k3-r4.25-v360-c1530-S1826927554-087.cnf
COMMAND LINE= HOME/adaptg2wsat2009++ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1534853-1238598929/watcher-1534853-1238598929 -o /tmp/evaluation-result-1534853-1238598929/solver-1534853-1238598929 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/adaptg2wsat2009++ HOME/instance-1534853-1238598929.cnf 560935913

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

MD5SUM BENCH= 0b7c656709bcc63999a07f86368ab57c
RANDOM SEED=560935913

node42.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		: 3000.211
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		: 3000.211
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:       1059760 kB
Buffers:        116556 kB
Cached:         772392 kB
SwapCached:       5184 kB
Active:         208856 kB
Inactive:       688612 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1059760 kB
SwapTotal:     4192956 kB
SwapFree:      4181692 kB
Dirty:            4596 kB
Writeback:           0 kB
Mapped:          14264 kB
Slab:            84648 kB
Committed_AS:  1091964 kB
PageTables:       1388 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= 66244 MiB
End job on node42 at 2009-04-01 17:15:29