Trace number 1523866

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
NCVWr 2009-03-22SAT 0.726888 0.725783

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/400/
unif-k3-r4.25-v400-c1700-S418266958-049.cnf
MD5SUM29a186a96c562943a29f8d865fcda20e
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 

0.70/0.72	c try 1 flip j 499660
0.70/0.72	c A solution is found
0.70/0.72	s SATISFIABLE
0.70/0.72	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 
0.70/0.72	v 0 
0.70/0.72	c Done (mycputime is 0.720 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-1523866-1238580452/watcher-1523866-1238580452 -o /tmp/evaluation-result-1523866-1238580452/solver-1523866-1238580452 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/NCVWr HOME/instance-1523866-1238580452.cnf 198018992 

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 1.01 1.00 3/64 22736
/proc/meminfo: memFree=1550072/2055920 swapFree=4178540/4192956
[pid=22736] ppid=22734 vsize=411880 CPUtime=0
/proc/22736/stat : 22736 (NCVWr) R 22734 22736 22399 0 -1 4194304 139 0 0 0 0 0 0 0 18 0 1 0 1130711150 421765120 123 1992294400 134512640 135113558 4294956224 18446744073709551615 134526354 0 0 4096 0 0 0 0 17 1 0 0
/proc/22736/statm: 102970 123 55 146 0 101845 0

[startup+0.099372 s]
/proc/loadavg: 1.00 1.01 1.00 3/64 22736
/proc/meminfo: memFree=1550072/2055920 swapFree=4178540/4192956
[pid=22736] ppid=22734 vsize=415940 CPUtime=0.09
/proc/22736/stat : 22736 (NCVWr) R 22734 22736 22399 0 -1 4194304 199 0 0 0 9 0 0 0 18 0 1 0 1130711150 425922560 183 1992294400 134512640 135113558 4294956224 18446744073709551615 134531084 0 0 4096 0 0 0 0 17 1 0 0
/proc/22736/statm: 103985 183 58 146 0 102860 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 415940

[startup+0.101372 s]
/proc/loadavg: 1.00 1.01 1.00 3/64 22736
/proc/meminfo: memFree=1550072/2055920 swapFree=4178540/4192956
[pid=22736] ppid=22734 vsize=415940 CPUtime=0.1
/proc/22736/stat : 22736 (NCVWr) R 22734 22736 22399 0 -1 4194304 199 0 0 0 10 0 0 0 18 0 1 0 1130711150 425922560 183 1992294400 134512640 135113558 4294956224 18446744073709551615 134531673 0 0 4096 0 0 0 0 17 1 0 0
/proc/22736/statm: 103985 183 58 146 0 102860 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 415940

[startup+0.301394 s]
/proc/loadavg: 1.00 1.01 1.00 3/64 22736
/proc/meminfo: memFree=1550072/2055920 swapFree=4178540/4192956
[pid=22736] ppid=22734 vsize=415940 CPUtime=0.3
/proc/22736/stat : 22736 (NCVWr) R 22734 22736 22399 0 -1 4194304 199 0 0 0 30 0 0 0 19 0 1 0 1130711150 425922560 183 1992294400 134512640 135113558 4294956224 18446744073709551615 134531127 0 0 4096 0 0 0 0 17 1 0 0
/proc/22736/statm: 103985 183 58 146 0 102860 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 415940

[startup+0.701436 s]
/proc/loadavg: 1.00 1.01 1.00 3/64 22736
/proc/meminfo: memFree=1550072/2055920 swapFree=4178540/4192956
[pid=22736] ppid=22734 vsize=415940 CPUtime=0.7
/proc/22736/stat : 22736 (NCVWr) R 22734 22736 22399 0 -1 4194304 199 0 0 0 70 0 0 0 22 0 1 0 1130711150 425922560 183 1992294400 134512640 135113558 4294956224 18446744073709551615 134531906 0 0 4096 0 0 0 0 17 1 0 0
/proc/22736/statm: 103985 183 58 146 0 102860 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 415940

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

Child status: 10
Real time (s): 0.725783
CPU time (s): 0.726888
CPU user time (s): 0.724889
CPU system time (s): 0.001999
CPU usage (%): 100.152
Max. virtual memory (cumulated for all children) (KiB): 415940

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.724889
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= 214
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 0.005999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node19 at 2009-04-01 12:07:32
IDJOB=1523866
IDBENCH=70686
IDSOLVER=531
FILE ID=node19/1523866-1238580452
PBS_JOBID= 9070536
Free space on /tmp= 66404 MiB

SOLVER NAME= NCVWr 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/400/unif-k3-r4.25-v400-c1700-S418266958-049.cnf
COMMAND LINE= HOME/NCVWr BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1523866-1238580452/watcher-1523866-1238580452 -o /tmp/evaluation-result-1523866-1238580452/solver-1523866-1238580452 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/NCVWr HOME/instance-1523866-1238580452.cnf 198018992

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

MD5SUM BENCH= 29a186a96c562943a29f8d865fcda20e
RANDOM SEED=198018992

node19.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		: 3000.235
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		: 3000.235
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:       1550488 kB
Buffers:         84704 kB
Cached:         325988 kB
SwapCached:       8188 kB
Active:         214280 kB
Inactive:       206360 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1550488 kB
SwapTotal:     4192956 kB
SwapFree:      4178540 kB
Dirty:            4684 kB
Writeback:           0 kB
Mapped:          15600 kB
Slab:            70728 kB
Committed_AS:  3102016 kB
PageTables:       1456 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= 66400 MiB
End job on node19 at 2009-04-01 12:07:33