Trace number 1530880

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
HydraSAT-Flat 2009-03-22-FlatSAT 7.52785 7.53095

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/360/
unif-k3-r4.25-v360-c1530-S1826927554-087.cnf
MD5SUM0b7c656709bcc63999a07f86368ab57c
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 variables360
Number of clauses1530
Sum of the clauses size4590
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31530
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

7.49/7.52	
7.49/7.52	c decisions : 58451
7.49/7.52	c conflicts : 49260
7.49/7.52	c Memory limit 1620 MiB
7.49/7.52	s SATISFIABLE
7.49/7.52	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 0

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-1530880-1238598879/watcher-1530880-1238598879 -o /tmp/evaluation-result-1530880-1238598879/solver-1530880-1238598879 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/hydrasat-flat HOME/instance-1530880-1238598879.cnf -rs 1503976654 -co memory_limit 1800 

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: 0.99 1.00 1.00 3/64 19627
/proc/meminfo: memFree=1410880/2055920 swapFree=4179868/4192956
[pid=19627] ppid=19625 vsize=1592 CPUtime=0
/proc/19627/stat : 19627 (hydrasat-flat) R 19625 19627 18767 0 -1 4194304 200 0 0 0 0 0 0 0 18 0 1 0 736780299 1630208 184 1992294400 134512640 135819388 4294956160 18446744073709551615 134601024 0 0 4096 1 0 0 0 17 1 0 0
/proc/19627/statm: 398 184 127 319 0 76 0

[startup+0.018911 s]
/proc/loadavg: 0.99 1.00 1.00 3/64 19627
/proc/meminfo: memFree=1410880/2055920 swapFree=4179868/4192956
[pid=19627] ppid=19625 vsize=1724 CPUtime=0.01
/proc/19627/stat : 19627 (hydrasat-flat) R 19625 19627 18767 0 -1 4194304 251 0 0 0 1 0 0 0 18 0 1 0 736780299 1765376 234 1992294400 134512640 135819388 4294956160 18446744073709551615 134616935 0 0 4096 1 0 0 0 17 1 0 0
/proc/19627/statm: 431 234 147 319 0 109 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1724

[startup+0.101923 s]
/proc/loadavg: 0.99 1.00 1.00 3/64 19627
/proc/meminfo: memFree=1410880/2055920 swapFree=4179868/4192956
[pid=19627] ppid=19625 vsize=1856 CPUtime=0.09
/proc/19627/stat : 19627 (hydrasat-flat) R 19625 19627 18767 0 -1 4194304 273 0 0 0 9 0 0 0 18 0 1 0 736780299 1900544 256 1992294400 134512640 135819388 4294956160 18446744073709551615 134616898 0 0 4096 1 0 0 0 17 1 0 0
/proc/19627/statm: 464 256 147 319 0 142 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1856

[startup+0.30195 s]
/proc/loadavg: 0.99 1.00 1.00 3/64 19627
/proc/meminfo: memFree=1410880/2055920 swapFree=4179868/4192956
[pid=19627] ppid=19625 vsize=1984 CPUtime=0.29
/proc/19627/stat : 19627 (hydrasat-flat) R 19625 19627 18767 0 -1 4194304 312 0 0 0 29 0 0 0 19 0 1 0 736780299 2031616 295 1992294400 134512640 135819388 4294956160 18446744073709551615 134617655 0 0 4096 1 0 0 0 17 1 0 0
/proc/19627/statm: 496 295 147 319 0 174 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1984

[startup+0.702007 s]
/proc/loadavg: 0.99 1.00 1.00 3/64 19627
/proc/meminfo: memFree=1410880/2055920 swapFree=4179868/4192956
[pid=19627] ppid=19625 vsize=2116 CPUtime=0.69
/proc/19627/stat : 19627 (hydrasat-flat) R 19625 19627 18767 0 -1 4194304 353 0 0 0 69 0 0 0 22 0 1 0 736780299 2166784 336 1992294400 134512640 135819388 4294956160 18446744073709551615 134617580 0 0 4096 1 0 0 0 17 1 0 0
/proc/19627/statm: 529 336 147 319 0 207 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2116

[startup+1.50112 s]
/proc/loadavg: 0.99 1.00 1.00 2/65 19628
/proc/meminfo: memFree=1409912/2055920 swapFree=4179868/4192956
[pid=19627] ppid=19625 vsize=2640 CPUtime=1.49
/proc/19627/stat : 19627 (hydrasat-flat) R 19625 19627 18767 0 -1 4194304 482 0 0 0 149 0 0 0 25 0 1 0 736780299 2703360 465 1992294400 134512640 135819388 4294956160 18446744073709551615 135210678 0 0 4096 1 0 0 0 17 1 0 0
/proc/19627/statm: 660 465 147 319 0 338 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2640

[startup+3.10135 s]
/proc/loadavg: 0.99 1.00 1.00 2/65 19628
/proc/meminfo: memFree=1408952/2055920 swapFree=4179868/4192956
[pid=19627] ppid=19625 vsize=3824 CPUtime=3.09
/proc/19627/stat : 19627 (hydrasat-flat) R 19625 19627 18767 0 -1 4194304 759 0 0 0 309 0 0 0 25 0 1 0 736780299 3915776 742 1992294400 134512640 135819388 4294956160 18446744073709551615 134671989 0 0 4096 1 0 0 0 17 1 0 0
/proc/19627/statm: 956 742 147 319 0 634 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3824

[startup+6.3018 s]
/proc/loadavg: 0.99 1.00 1.00 2/65 19628
/proc/meminfo: memFree=1406840/2055920 swapFree=4179868/4192956
[pid=19627] ppid=19625 vsize=5800 CPUtime=6.29
/proc/19627/stat : 19627 (hydrasat-flat) R 19625 19627 18767 0 -1 4194304 1216 0 0 0 629 0 0 0 25 0 1 0 736780299 5939200 1199 1992294400 134512640 135819388 4294956160 18446744073709551615 134588331 0 0 4096 1 0 0 0 17 1 0 0
/proc/19627/statm: 1450 1199 147 319 0 1128 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 5800

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

[startup+7.10191 s]
/proc/loadavg: 0.99 1.00 1.00 2/65 19628
/proc/meminfo: memFree=1406328/2055920 swapFree=4179868/4192956
[pid=19627] ppid=19625 vsize=6400 CPUtime=7.09
/proc/19627/stat : 19627 (hydrasat-flat) R 19625 19627 18767 0 -1 4194304 1331 0 0 0 709 0 0 0 25 0 1 0 736780299 6553600 1314 1992294400 134512640 135819388 4294956160 18446744073709551615 134617580 0 0 4096 1 0 0 0 17 1 0 0
/proc/19627/statm: 1600 1314 147 319 0 1278 0
Current children cumulated CPU time (s) 7.09
Current children cumulated vsize (KiB) 6400

[startup+7.50197 s]
/proc/loadavg: 0.99 1.00 1.00 2/65 19628
/proc/meminfo: memFree=1406328/2055920 swapFree=4179868/4192956
[pid=19627] ppid=19625 vsize=6528 CPUtime=7.49
/proc/19627/stat : 19627 (hydrasat-flat) R 19625 19627 18767 0 -1 4194304 1374 0 0 0 749 0 0 0 25 0 1 0 736780299 6684672 1357 1992294400 134512640 135819388 4294956160 18446744073709551615 134617218 0 0 4096 1 0 0 0 17 1 0 0
/proc/19627/statm: 1632 1357 147 319 0 1310 0
Current children cumulated CPU time (s) 7.49
Current children cumulated vsize (KiB) 6528

Child status: 10
Real time (s): 7.53095
CPU time (s): 7.52785
CPU user time (s): 7.51886
CPU system time (s): 0.008998
CPU usage (%): 99.9588
Max. virtual memory (cumulated for all children) (KiB): 6528

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.51886
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1383
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= 21

runsolver used 0.007998 second user time and 0.025996 second system time

The end

Launcher Data 

Begin job on node49 at 2009-04-01 17:14:39
IDJOB=1530880
IDBENCH=70744
IDSOLVER=519
FILE ID=node49/1530880-1238598879
PBS_JOBID= 9068316
Free space on /tmp= 66388 MiB

SOLVER NAME= HydraSAT-Flat 2009-03-22-Flat
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/360/unif-k3-r4.25-v360-c1530-S1826927554-087.cnf
COMMAND LINE= DIR/hydrasat-flat BENCHNAME -rs RANDOMSEED -co memory_limit MEMLIMIT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1530880-1238598879/watcher-1530880-1238598879 -o /tmp/evaluation-result-1530880-1238598879/solver-1530880-1238598879 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/hydrasat-flat HOME/instance-1530880-1238598879.cnf -rs 1503976654 -co memory_limit 1800

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

MD5SUM BENCH= 0b7c656709bcc63999a07f86368ab57c
RANDOM SEED=1503976654

node49.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	: 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		: 3000.214
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:       1411296 kB
Buffers:        108820 kB
Cached:         432196 kB
SwapCached:       6452 kB
Active:         216604 kB
Inactive:       333260 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1411296 kB
SwapTotal:     4192956 kB
SwapFree:      4179868 kB
Dirty:            1324 kB
Writeback:           0 kB
Mapped:          14616 kB
Slab:            80536 kB
Committed_AS:  2020972 kB
PageTables:       1384 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66384 MiB
End job on node49 at 2009-04-01 17:14:46