Trace number 1534492

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 0.031994 0.032586

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/420/
unif-k3-r4.25-v420-c1785-S1880984131-087.cnf
MD5SUMe8e7e26f525620bde52dee4b2a5f6f0e
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 variables420
Number of clauses1785
Sum of the clauses size5355
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31785
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.03	c 0 clauses are redundant and removed
0.00/0.03	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.03	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.03	c initial seed is 1406716972
0.00/0.03	c try 1 flip j 21569 walk 17767 seed 334941974
0.00/0.03	c A solution is found
0.00/0.03	s SATISFIABLE
0.00/0.03	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 
0.00/0.03	v 0 
0.00/0.03	c Done (mycputime is 0.020 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-1534492-1238575965/watcher-1534492-1238575965 -o /tmp/evaluation-result-1534492-1238575965/solver-1534492-1238575965 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/adaptg2wsat2009 HOME/instance-1534492-1238575965.cnf 1406716972 

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: 2.29 2.27 1.76 3/76 3275
/proc/meminfo: memFree=1645960/2055920 swapFree=4173760/4192956
[pid=3275] ppid=3273 vsize=415928 CPUtime=0
/proc/3275/stat : 3275 (adaptg2wsat2009) R 3273 3275 2984 0 -1 4194304 137 0 0 0 0 0 0 0 18 0 1 0 1130257720 425910272 120 1992294400 134512640 135106963 4294956192 18446744073709551615 134523212 0 0 4096 0 0 0 0 17 1 0 0
/proc/3275/statm: 103982 120 50 145 0 102858 0

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

Child status: 10
Real time (s): 0.032586
CPU time (s): 0.031994
CPU user time (s): 0.028995
CPU system time (s): 0.002999
CPU usage (%): 98.1832
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.028995
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= 207
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 0.008998 second system time

The end

Launcher Data 

Begin job on node65 at 2009-04-01 10:52:45
IDJOB=1534492
IDBENCH=70672
IDSOLVER=542
FILE ID=node65/1534492-1238575965
PBS_JOBID= 9062207
Free space on /tmp= 66316 MiB

SOLVER NAME= adaptg2wsat2009 2009-03-23
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/420/unif-k3-r4.25-v420-c1785-S1880984131-087.cnf
COMMAND LINE= HOME/adaptg2wsat2009 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1534492-1238575965/watcher-1534492-1238575965 -o /tmp/evaluation-result-1534492-1238575965/solver-1534492-1238575965 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/adaptg2wsat2009 HOME/instance-1534492-1238575965.cnf 1406716972

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

MD5SUM BENCH= e8e7e26f525620bde52dee4b2a5f6f0e
RANDOM SEED=1406716972

node65.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		: 3000.231
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		: 3000.231
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:       1646440 kB
Buffers:         87260 kB
Cached:         233428 kB
SwapCached:       9792 kB
Active:         195788 kB
Inactive:       136188 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1646440 kB
SwapTotal:     4192956 kB
SwapFree:      4173760 kB
Dirty:            4792 kB
Writeback:           0 kB
Mapped:          16988 kB
Slab:            62280 kB
Committed_AS:  3550644 kB
PageTables:       2316 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= 66312 MiB
End job on node65 at 2009-04-01 10:52:45