Trace number 1523888

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
TNM 2009-03-22SAT 0.013997 0.0134149

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/400/
unif-k3-r4.25-v400-c1700-S1326039470-063.cnf
MD5SUM2e40295bba29f3b31b5d5a615b1b160f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.010997
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of clauses1700
Sum of the clauses size5100
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31700
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 try 1 flip j 5441
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 -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 
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-1523888-1238582350/watcher-1523888-1238582350 -o /tmp/evaluation-result-1523888-1238582350/solver-1523888-1238582350 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/TNM HOME/instance-1523888-1238582350.cnf 1797625053 

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: 0.99 0.99 1.04 3/70 10936
/proc/meminfo: memFree=1004400/2055920 swapFree=4170592/4192956
[pid=10936] ppid=10934 vsize=450928 CPUtime=0
/proc/10936/stat : 10936 (TNM) R 10934 10936 10255 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 1130897607 461750272 111 1992294400 134512640 135094415 4294956208 18446744073709551615 134523868 0 0 4096 0 0 0 0 17 1 0 0
/proc/10936/statm: 112732 111 49 142 0 111611 0

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

Child status: 10
Real time (s): 0.0134149
CPU time (s): 0.013997
CPU user time (s): 0.011998
CPU system time (s): 0.001999
CPU usage (%): 104.339
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.011998
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 195
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 0.002999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node45 at 2009-04-01 12:39:10
IDJOB=1523888
IDBENCH=70693
IDSOLVER=532
FILE ID=node45/1523888-1238582350
PBS_JOBID= 9062203
Free space on /tmp= 66416 MiB

SOLVER NAME= TNM 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/400/unif-k3-r4.25-v400-c1700-S1326039470-063.cnf
COMMAND LINE= HOME/TNM BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1523888-1238582350/watcher-1523888-1238582350 -o /tmp/evaluation-result-1523888-1238582350/solver-1523888-1238582350 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/TNM HOME/instance-1523888-1238582350.cnf 1797625053

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

MD5SUM BENCH= 2e40295bba29f3b31b5d5a615b1b160f
RANDOM SEED=1797625053

node45.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		: 3000.285
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		: 3000.285
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:       1004816 kB
Buffers:        111156 kB
Cached:         831384 kB
SwapCached:      11568 kB
Active:         209220 kB
Inactive:       746368 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1004816 kB
SwapTotal:     4192956 kB
SwapFree:      4170592 kB
Dirty:            4588 kB
Writeback:           0 kB
Mapped:          18692 kB
Slab:            80840 kB
Committed_AS:  2758164 kB
PageTables:       1900 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= 66412 MiB
End job on node45 at 2009-04-01 12:39:10