Trace number 1534808

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 0.075987 0.0767571

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/380/
unif-k3-r4.25-v380-c1615-S1985172968-100.cnf
MD5SUMd341022d95ddbcad449a00c47578e9f1
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.015997
Satisfiable
(Un)Satisfiability was proved
Number of variables380
Number of clauses1615
Sum of the clauses size4845
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31615
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.04/0.07	c 0 clauses are redundant and removed
0.04/0.07	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.04/0.07	c 0 vars are fixed and 0 clauses are removed after lookahead
0.04/0.07	c initial seed is 2092075478
0.04/0.07	c try 1 flip j 67588 walk 55645 seed 750309227
0.04/0.07	c A solution is found
0.04/0.07	s SATISFIABLE
0.04/0.07	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 
0.04/0.07	v 0 
0.04/0.07	c Done (mycputime is 0.070 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-1534808-1238596589/watcher-1534808-1238596589 -o /tmp/evaluation-result-1534808-1238596589/solver-1534808-1238596589 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/adaptg2wsat2009++ HOME/instance-1534808-1238596589.cnf 2092075478 

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: 0.92 0.98 1.12 2/70 9479
/proc/meminfo: memFree=1659104/2055920 swapFree=4173176/4192956
[pid=9479] ppid=9477 vsize=415932 CPUtime=0
/proc/9479/stat : 9479 (adaptg2wsat2009) R 9477 9479 8740 0 -1 4194304 192 0 0 0 0 0 0 0 18 0 1 0 1132322159 425914368 175 1992294400 134512640 135107411 4294956192 18446744073709551615 134534993 0 0 4096 0 0 0 0 17 1 0 0
/proc/9479/statm: 103983 175 59 145 0 102859 0

[startup+0.050069 s]
/proc/loadavg: 0.92 0.98 1.12 2/70 9479
/proc/meminfo: memFree=1659104/2055920 swapFree=4173176/4192956
[pid=9479] ppid=9477 vsize=415932 CPUtime=0.04
/proc/9479/stat : 9479 (adaptg2wsat2009) R 9477 9479 8740 0 -1 4194304 192 0 0 0 4 0 0 0 18 0 1 0 1132322159 425914368 175 1992294400 134512640 135107411 4294956192 18446744073709551615 134531535 0 0 4096 0 0 0 0 17 1 0 0
/proc/9479/statm: 103983 175 59 145 0 102859 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 415932

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

[startup+0.050069 s]
/proc/loadavg: 0.92 0.98 1.12 2/70 9479
/proc/meminfo: memFree=1659104/2055920 swapFree=4173176/4192956
[pid=9479] ppid=9477 vsize=415932 CPUtime=0.04
/proc/9479/stat : 9479 (adaptg2wsat2009) R 9477 9479 8740 0 -1 4194304 192 0 0 0 4 0 0 0 18 0 1 0 1132322159 425914368 175 1992294400 134512640 135107411 4294956192 18446744073709551615 134531535 0 0 4096 0 0 0 0 17 1 0 0
/proc/9479/statm: 103983 175 59 145 0 102859 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 415932

Child status: 10
Real time (s): 0.0767571
CPU time (s): 0.075987
CPU user time (s): 0.073988
CPU system time (s): 0.001999
CPU usage (%): 98.9967
Max. virtual memory (cumulated for all children) (KiB): 415932

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.073988
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= 205
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 0.006998 second system time

The end

Launcher Data 

Begin job on node36 at 2009-04-01 16:36:29
IDJOB=1534808
IDBENCH=70735
IDSOLVER=543
FILE ID=node36/1534808-1238596589
PBS_JOBID= 9068304
Free space on /tmp= 66412 MiB

SOLVER NAME= adaptg2wsat2009++ 2009-03-23
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/380/unif-k3-r4.25-v380-c1615-S1985172968-100.cnf
COMMAND LINE= HOME/adaptg2wsat2009++ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1534808-1238596589/watcher-1534808-1238596589 -o /tmp/evaluation-result-1534808-1238596589/solver-1534808-1238596589 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/adaptg2wsat2009++ HOME/instance-1534808-1238596589.cnf 2092075478

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

MD5SUM BENCH= d341022d95ddbcad449a00c47578e9f1
RANDOM SEED=2092075478

node36.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		: 3000.214
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		: 3000.214
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:       1659712 kB
Buffers:         81444 kB
Cached:         229552 kB
SwapCached:       9148 kB
Active:         197768 kB
Inactive:       123896 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1659712 kB
SwapTotal:     4192956 kB
SwapFree:      4173176 kB
Dirty:            4604 kB
Writeback:           0 kB
Mapped:          16348 kB
Slab:            59932 kB
Committed_AS:  3186776 kB
PageTables:       1876 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= 66408 MiB
End job on node36 at 2009-04-01 16:36:29