Trace number 1522342

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
iPAWS 2009-03-22SAT 0.009998 0.0105611

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/380/
unif-k3-r4.25-v380-c1615-S1516934767-080.cnf
MD5SUMe81ed5c11d3bffdd04a2753974045769
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.008998
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 

0.00/0.00	s SATISFIABLE
0.00/0.00	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
0.00/0.00	c input file instance-1522342-1238596909.cnf, flips 1164

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-1522342-1238596909/watcher-1522342-1238596909 -o /tmp/evaluation-result-1522342-1238596909/solver-1522342-1238596909 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/iPAWS HOME/instance-1522342-1238596909.cnf 2121133221 

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 1.00 3/73 24195
/proc/meminfo: memFree=1524440/2055920 swapFree=4175504/4192956
[pid=24195] ppid=24193 vsize=335916 CPUtime=0
/proc/24195/stat : 24195 (iPAWS) R 24193 24195 24043 0 -1 4194304 607 0 0 0 0 0 0 0 20 0 1 0 1132355428 343977984 591 1992294400 134512640 135114423 4294956224 18446744073709551615 134534175 0 0 4096 0 0 0 0 17 1 0 0
/proc/24195/statm: 83979 596 54 146 0 83831 0

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

Child status: 0
Real time (s): 0.0105611
CPU time (s): 0.009998
CPU user time (s): 0.004999
CPU system time (s): 0.004999
CPU usage (%): 94.6686
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.004999
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 934
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 0.003999 second system time

The end

Launcher Data 

Begin job on node77 at 2009-04-01 16:41:49
IDJOB=1522342
IDBENCH=70737
IDSOLVER=516
FILE ID=node77/1522342-1238596909
PBS_JOBID= 9068329
Free space on /tmp= 66552 MiB

SOLVER NAME= iPAWS 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/380/unif-k3-r4.25-v380-c1615-S1516934767-080.cnf
COMMAND LINE= HOME/iPAWS BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1522342-1238596909/watcher-1522342-1238596909 -o /tmp/evaluation-result-1522342-1238596909/solver-1522342-1238596909 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/iPAWS HOME/instance-1522342-1238596909.cnf 2121133221

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

MD5SUM BENCH= e81ed5c11d3bffdd04a2753974045769
RANDOM SEED=2121133221

node77.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		: 3000.230
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		: 3000.230
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1524920 kB
Buffers:         90676 kB
Cached:         346448 kB
SwapCached:       9160 kB
Active:         219800 kB
Inactive:       230580 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1524920 kB
SwapTotal:     4192956 kB
SwapFree:      4175504 kB
Dirty:             692 kB
Writeback:           0 kB
Mapped:          17544 kB
Slab:            65732 kB
Committed_AS:  2855512 kB
PageTables:       1984 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= 66552 MiB
End job on node77 at 2009-04-01 16:41:49