Trace number 1529015

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
gnovelty+2 2009-03-22SAT 0.181971 0.182581

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/400/
unif-k3-r4.25-v400-c1700-S1531283922-009.cnf
MD5SUMed6fcf5f29f5b190db98674f0404abc2
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.024996
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 

0.00/0.00	c +------------------------------+
0.00/0.00	c | gNovelty+, version 2.0       |
0.00/0.00	c +------------------------------+
0.00/0.00	c gnovelty+ -h for help
0.00/0.00	c 
0.00/0.00	c Problem instance: numAtoms = 400, numClauses = 1700
0.00/0.00	c General parameters: seed = 403750311, timeout = 10 secs, targetCost = 0, print solution: no
0.00/0.00	c gNovelty+ parameters: walkprob = 0.01, smoothprob = 0.40, noise = adaptive
0.00/0.00	c tries = 1
0.00/0.00	c 
0.09/0.18	c      0   128557         0    128557     31403      0.18
0.09/0.18	s SATISFIABLE
0.09/0.18	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
0.09/0.18	c Done in 0.180000 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-1529015-1238582111/watcher-1529015-1238582111 -o /tmp/evaluation-result-1529015-1238582111/solver-1529015-1238582111 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+2 HOME/instance-1529015-1238582111.cnf 403750311 

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: 1.99 1.96 1.73 3/71 22230
/proc/meminfo: memFree=1246032/2055920 swapFree=4170332/4192956
[pid=22230] ppid=22228 vsize=1017720 CPUtime=0
/proc/22230/stat : 22230 (gnovelty+2) R 22228 22230 21754 0 -1 4194304 184 0 0 0 0 0 0 0 18 0 1 0 1130874235 1042145280 167 1992294400 134512640 135663704 4294956208 18446744073709551615 134545644 0 0 4096 0 0 0 0 17 1 0 0
/proc/22230/statm: 254430 167 112 281 0 254146 0

[startup+0.062733 s]
/proc/loadavg: 1.99 1.96 1.73 3/71 22230
/proc/meminfo: memFree=1246032/2055920 swapFree=4170332/4192956
[pid=22230] ppid=22228 vsize=1017720 CPUtime=0.06
/proc/22230/stat : 22230 (gnovelty+2) R 22228 22230 21754 0 -1 4194304 184 0 0 0 6 0 0 0 18 0 1 0 1130874235 1042145280 167 1992294400 134512640 135663704 4294956208 18446744073709551615 134525168 0 0 4096 0 0 0 0 17 1 0 0
/proc/22230/statm: 254430 167 112 281 0 254146 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1017720

[startup+0.101739 s]
/proc/loadavg: 1.99 1.96 1.73 3/71 22230
/proc/meminfo: memFree=1246032/2055920 swapFree=4170332/4192956
[pid=22230] ppid=22228 vsize=1017720 CPUtime=0.09
/proc/22230/stat : 22230 (gnovelty+2) R 22228 22230 21754 0 -1 4194304 184 0 0 0 9 0 0 0 18 0 1 0 1130874235 1042145280 167 1992294400 134512640 135663704 4294956208 18446744073709551615 134524882 0 0 4096 0 0 0 0 17 1 0 0
/proc/22230/statm: 254430 167 112 281 0 254146 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1017720

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

Child status: 10
Real time (s): 0.182581
CPU time (s): 0.181971
CPU user time (s): 0.180972
CPU system time (s): 0.000999
CPU usage (%): 99.6659
Max. virtual memory (cumulated for all children) (KiB): 1017720

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.180972
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= 188
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 node38 at 2009-04-01 12:35:11
IDJOB=1529015
IDBENCH=70692
IDSOLVER=548
FILE ID=node38/1529015-1238582111
PBS_JOBID= 9062193
Free space on /tmp= 65528 MiB

SOLVER NAME= gnovelty+2 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/400/unif-k3-r4.25-v400-c1700-S1531283922-009.cnf
COMMAND LINE= HOME/gnovelty+2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1529015-1238582111/watcher-1529015-1238582111 -o /tmp/evaluation-result-1529015-1238582111/solver-1529015-1238582111 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+2 HOME/instance-1529015-1238582111.cnf 403750311

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

MD5SUM BENCH= ed6fcf5f29f5b190db98674f0404abc2
RANDOM SEED=403750311

node38.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		: 3000.259
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	: 5931.00
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		: 3000.259
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:       1246448 kB
Buffers:         94588 kB
Cached:         612252 kB
SwapCached:      11172 kB
Active:         203820 kB
Inactive:       515628 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1246448 kB
SwapTotal:     4192956 kB
SwapFree:      4170332 kB
Dirty:            1412 kB
Writeback:           0 kB
Mapped:          18380 kB
Slab:            75256 kB
Committed_AS:  3236372 kB
PageTables:       1988 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= 65528 MiB
End job on node38 at 2009-04-01 12:35:12