Trace number 1523908

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 2.86856 2.86981

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/440/
unif-k3-r4.25-v440-c1870-S780904324-093.cnf
MD5SUM0370c3395f27638ffb4005ffcc836f58
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.044992
Satisfiable
(Un)Satisfiability was proved
Number of variables440
Number of clauses1870
Sum of the clauses size5610
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31870
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

2.79/2.86	c try 1 flip j 1926574
2.79/2.86	c A solution is found
2.79/2.86	s SATISFIABLE
2.79/2.86	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 -421 -422 423 -424 -425 426 427 -428 429 -430 431 432 433 -434 -435 -436 437 438 -439 440 
2.79/2.86	v 0 
2.79/2.86	c Done (mycputime is 2.860 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-1523908-1238584240/watcher-1523908-1238584240 -o /tmp/evaluation-result-1523908-1238584240/solver-1523908-1238584240 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/NCVWr HOME/instance-1523908-1238584240.cnf 1195627971 

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 1.00 1.09 3/64 15572
/proc/meminfo: memFree=1529456/2055920 swapFree=4178796/4192956
[pid=15572] ppid=15570 vsize=412012 CPUtime=0
/proc/15572/stat : 15572 (NCVWr) R 15570 15572 15286 0 -1 4194304 142 0 0 0 0 0 0 0 18 0 1 0 1131085819 421900288 126 1992294400 134512640 135113558 4294956208 18446744073709551615 134526484 0 0 4096 0 0 0 0 17 1 0 0
/proc/15572/statm: 103003 126 55 146 0 101878 0

[startup+0.0633731 s]
/proc/loadavg: 1.00 1.00 1.09 3/64 15572
/proc/meminfo: memFree=1529456/2055920 swapFree=4178796/4192956
[pid=15572] ppid=15570 vsize=415912 CPUtime=0.06
/proc/15572/stat : 15572 (NCVWr) R 15570 15572 15286 0 -1 4194304 206 0 0 0 6 0 0 0 18 0 1 0 1131085819 425893888 190 1992294400 134512640 135113558 4294956208 18446744073709551615 134531317 0 0 4096 0 0 0 0 17 1 0 0
/proc/15572/statm: 103978 190 58 146 0 102853 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 415912

[startup+0.101375 s]
/proc/loadavg: 1.00 1.00 1.09 3/64 15572
/proc/meminfo: memFree=1529456/2055920 swapFree=4178796/4192956
[pid=15572] ppid=15570 vsize=415912 CPUtime=0.09
/proc/15572/stat : 15572 (NCVWr) R 15570 15572 15286 0 -1 4194304 206 0 0 0 9 0 0 0 18 0 1 0 1131085819 425893888 190 1992294400 134512640 135113558 4294956208 18446744073709551615 134531745 0 0 4096 0 0 0 0 17 1 0 0
/proc/15572/statm: 103978 190 58 146 0 102853 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 415912

[startup+0.301392 s]
/proc/loadavg: 1.00 1.00 1.09 3/64 15572
/proc/meminfo: memFree=1529456/2055920 swapFree=4178796/4192956
[pid=15572] ppid=15570 vsize=415912 CPUtime=0.29
/proc/15572/stat : 15572 (NCVWr) R 15570 15572 15286 0 -1 4194304 206 0 0 0 29 0 0 0 19 0 1 0 1131085819 425893888 190 1992294400 134512640 135113558 4294956208 18446744073709551615 134531405 0 0 4096 0 0 0 0 17 1 0 0
/proc/15572/statm: 103978 190 58 146 0 102853 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 415912

[startup+0.701426 s]
/proc/loadavg: 1.00 1.00 1.09 3/64 15572
/proc/meminfo: memFree=1529456/2055920 swapFree=4178796/4192956
[pid=15572] ppid=15570 vsize=415912 CPUtime=0.69
/proc/15572/stat : 15572 (NCVWr) R 15570 15572 15286 0 -1 4194304 206 0 0 0 69 0 0 0 22 0 1 0 1131085819 425893888 190 1992294400 134512640 135113558 4294956208 18446744073709551615 134534280 0 0 4096 0 0 0 0 17 1 0 0
/proc/15572/statm: 103978 190 58 146 0 102853 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 415912

[startup+1.5015 s]
/proc/loadavg: 1.00 1.00 1.09 2/65 15573
/proc/meminfo: memFree=1528680/2055920 swapFree=4178796/4192956
[pid=15572] ppid=15570 vsize=415912 CPUtime=1.49
/proc/15572/stat : 15572 (NCVWr) R 15570 15572 15286 0 -1 4194304 206 0 0 0 149 0 0 0 25 0 1 0 1131085819 425893888 190 1992294400 134512640 135113558 4294956208 18446744073709551615 134531867 0 0 4096 0 0 0 0 17 1 0 0
/proc/15572/statm: 103978 190 58 146 0 102853 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 415912

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

[startup+2.30157 s]
/proc/loadavg: 1.00 1.00 1.09 2/65 15573
/proc/meminfo: memFree=1528552/2055920 swapFree=4178796/4192956
[pid=15572] ppid=15570 vsize=415912 CPUtime=2.29
/proc/15572/stat : 15572 (NCVWr) R 15570 15572 15286 0 -1 4194304 207 0 0 0 229 0 0 0 25 0 1 0 1131085819 425893888 191 1992294400 134512640 135113558 4294956208 18446744073709551615 134531417 0 0 4096 0 0 0 0 17 1 0 0
/proc/15572/statm: 103978 191 58 146 0 102853 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 415912

[startup+2.7016 s]
/proc/loadavg: 1.00 1.00 1.09 2/65 15573
/proc/meminfo: memFree=1528552/2055920 swapFree=4178796/4192956
[pid=15572] ppid=15570 vsize=415912 CPUtime=2.69
/proc/15572/stat : 15572 (NCVWr) R 15570 15572 15286 0 -1 4194304 207 0 0 0 269 0 0 0 25 0 1 0 1131085819 425893888 191 1992294400 134512640 135113558 4294956208 18446744073709551615 134531766 0 0 4096 0 0 0 0 17 1 0 0
/proc/15572/statm: 103978 191 58 146 0 102853 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 415912

[startup+2.80161 s]
/proc/loadavg: 1.00 1.00 1.09 2/65 15573
/proc/meminfo: memFree=1528552/2055920 swapFree=4178796/4192956
[pid=15572] ppid=15570 vsize=415912 CPUtime=2.79
/proc/15572/stat : 15572 (NCVWr) R 15570 15572 15286 0 -1 4194304 207 0 0 0 279 0 0 0 25 0 1 0 1131085819 425893888 191 1992294400 134512640 135113558 4294956208 18446744073709551615 134534069 0 0 4096 0 0 0 0 17 1 0 0
/proc/15572/statm: 103978 191 58 146 0 102853 0
Current children cumulated CPU time (s) 2.79
Current children cumulated vsize (KiB) 415912

Child status: 10
Real time (s): 2.86981
CPU time (s): 2.86856
CPU user time (s): 2.86756
CPU system time (s): 0.000999
CPU usage (%): 99.9564
Max. virtual memory (cumulated for all children) (KiB): 415912

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.86756
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= 220
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= 4

runsolver used 0.003999 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node57 at 2009-04-01 13:10:40
IDJOB=1523908
IDBENCH=70700
IDSOLVER=531
FILE ID=node57/1523908-1238584240
PBS_JOBID= 9062217
Free space on /tmp= 66264 MiB

SOLVER NAME= NCVWr 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/440/unif-k3-r4.25-v440-c1870-S780904324-093.cnf
COMMAND LINE= HOME/NCVWr BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1523908-1238584240/watcher-1523908-1238584240 -o /tmp/evaluation-result-1523908-1238584240/solver-1523908-1238584240 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/NCVWr HOME/instance-1523908-1238584240.cnf 1195627971

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

MD5SUM BENCH= 0370c3395f27638ffb4005ffcc836f58
RANDOM SEED=1195627971

node57.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		: 3000.213
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		: 3000.213
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:       1529872 kB
Buffers:         89636 kB
Cached:         341516 kB
SwapCached:       7992 kB
Active:         218176 kB
Inactive:       222492 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1529872 kB
SwapTotal:     4192956 kB
SwapFree:      4178796 kB
Dirty:            4704 kB
Writeback:           0 kB
Mapped:          15136 kB
Slab:            71472 kB
Committed_AS:  2753180 kB
PageTables:       1392 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= 66260 MiB
End job on node57 at 2009-04-01 13:10:43