./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety/selectionsort-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/array-memsafety/selectionsort-alloca-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 82679d367c32c359f0c9c81b27b57deea5682b2b ............................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/array-memsafety/selectionsort-alloca-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 82679d367c32c359f0c9c81b27b57deea5682b2b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 05:51:40,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 05:51:40,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 05:51:40,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 05:51:40,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 05:51:40,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 05:51:40,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 05:51:40,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 05:51:40,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 05:51:40,257 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 05:51:40,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 05:51:40,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 05:51:40,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 05:51:40,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 05:51:40,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 05:51:40,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 05:51:40,270 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 05:51:40,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 05:51:40,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 05:51:40,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 05:51:40,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 05:51:40,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 05:51:40,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 05:51:40,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 05:51:40,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 05:51:40,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 05:51:40,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 05:51:40,302 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 05:51:40,303 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 05:51:40,307 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 05:51:40,307 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 05:51:40,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 05:51:40,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 05:51:40,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 05:51:40,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 05:51:40,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 05:51:40,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 05:51:40,323 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 05:51:40,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 05:51:40,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 05:51:40,325 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 05:51:40,327 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-20 05:51:40,360 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 05:51:40,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 05:51:40,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 05:51:40,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 05:51:40,363 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 05:51:40,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 05:51:40,363 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 05:51:40,363 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 05:51:40,364 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 05:51:40,364 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 05:51:40,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 05:51:40,364 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 05:51:40,365 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 05:51:40,365 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 05:51:40,365 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 05:51:40,365 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 05:51:40,366 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 05:51:40,366 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 05:51:40,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 05:51:40,366 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 05:51:40,367 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 05:51:40,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 05:51:40,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:51:40,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 05:51:40,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 05:51:40,368 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 05:51:40,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 05:51:40,369 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 05:51:40,369 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82679d367c32c359f0c9c81b27b57deea5682b2b [2020-10-20 05:51:40,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 05:51:40,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 05:51:40,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 05:51:40,623 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 05:51:40,624 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 05:51:40,624 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/selectionsort-alloca-1.i [2020-10-20 05:51:40,691 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34f4b084e/139783f16eac4444b3fe2dc8230baa29/FLAG3ea435518 [2020-10-20 05:51:41,297 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 05:51:41,298 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/selectionsort-alloca-1.i [2020-10-20 05:51:41,313 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34f4b084e/139783f16eac4444b3fe2dc8230baa29/FLAG3ea435518 [2020-10-20 05:51:41,511 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34f4b084e/139783f16eac4444b3fe2dc8230baa29 [2020-10-20 05:51:41,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 05:51:41,522 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 05:51:41,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 05:51:41,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 05:51:41,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 05:51:41,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:51:41" (1/1) ... [2020-10-20 05:51:41,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7721dd63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:51:41, skipping insertion in model container [2020-10-20 05:51:41,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:51:41" (1/1) ... [2020-10-20 05:51:41,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 05:51:41,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:51:41,982 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:51:41,999 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-10-20 05:51:42,001 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7969ddff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:51:41, skipping insertion in model container [2020-10-20 05:51:42,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 05:51:42,002 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-10-20 05:51:42,006 INFO L168 Benchmark]: Toolchain (without parser) took 486.76 ms. Allocated memory was 41.9 MB in the beginning and 42.5 MB in the end (delta: 524.3 kB). Free memory was 20.8 MB in the beginning and 20.5 MB in the end (delta: 280.6 kB). Peak memory consumption was 11.9 MB. Max. memory is 14.3 GB. [2020-10-20 05:51:42,007 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 32.0 MB. Free memory was 9.6 MB in the beginning and 9.6 MB in the end (delta: 45.6 kB). Peak memory consumption was 45.6 kB. Max. memory is 14.3 GB. [2020-10-20 05:51:42,010 INFO L168 Benchmark]: CACSL2BoogieTranslator took 478.18 ms. Allocated memory was 41.9 MB in the beginning and 42.5 MB in the end (delta: 524.3 kB). Free memory was 19.9 MB in the beginning and 20.5 MB in the end (delta: -650.2 kB). Peak memory consumption was 11.0 MB. Max. memory is 14.3 GB. [2020-10-20 05:51:42,015 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 32.0 MB. Free memory was 9.6 MB in the beginning and 9.6 MB in the end (delta: 45.6 kB). Peak memory consumption was 45.6 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 478.18 ms. Allocated memory was 41.9 MB in the beginning and 42.5 MB in the end (delta: 524.3 kB). Free memory was 19.9 MB in the beginning and 20.5 MB in the end (delta: -650.2 kB). Peak memory consumption was 11.0 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 534]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 05:51:44,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 05:51:44,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 05:51:44,208 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 05:51:44,209 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 05:51:44,219 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 05:51:44,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 05:51:44,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 05:51:44,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 05:51:44,243 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 05:51:44,245 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 05:51:44,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 05:51:44,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 05:51:44,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 05:51:44,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 05:51:44,255 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 05:51:44,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 05:51:44,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 05:51:44,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 05:51:44,269 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 05:51:44,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 05:51:44,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 05:51:44,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 05:51:44,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 05:51:44,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 05:51:44,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 05:51:44,294 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 05:51:44,295 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 05:51:44,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 05:51:44,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 05:51:44,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 05:51:44,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 05:51:44,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 05:51:44,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 05:51:44,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 05:51:44,311 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 05:51:44,312 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 05:51:44,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 05:51:44,313 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 05:51:44,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 05:51:44,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 05:51:44,318 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-20 05:51:44,361 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 05:51:44,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 05:51:44,366 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 05:51:44,368 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 05:51:44,368 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 05:51:44,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 05:51:44,369 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 05:51:44,369 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 05:51:44,369 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 05:51:44,370 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 05:51:44,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 05:51:44,371 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 05:51:44,372 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 05:51:44,372 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 05:51:44,373 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 05:51:44,373 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 05:51:44,373 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 05:51:44,373 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 05:51:44,374 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 05:51:44,374 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 05:51:44,375 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 05:51:44,375 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 05:51:44,375 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 05:51:44,375 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 05:51:44,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:51:44,376 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 05:51:44,376 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 05:51:44,377 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 05:51:44,377 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 05:51:44,377 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 05:51:44,377 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 05:51:44,378 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82679d367c32c359f0c9c81b27b57deea5682b2b [2020-10-20 05:51:44,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 05:51:44,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 05:51:44,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 05:51:44,707 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 05:51:44,708 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 05:51:44,709 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/selectionsort-alloca-1.i [2020-10-20 05:51:44,789 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bb306bf7/0fe6ec928e6041d0b383c7476a16faa6/FLAG6c08e5c9a [2020-10-20 05:51:45,309 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 05:51:45,310 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/selectionsort-alloca-1.i [2020-10-20 05:51:45,324 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bb306bf7/0fe6ec928e6041d0b383c7476a16faa6/FLAG6c08e5c9a [2020-10-20 05:51:45,614 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bb306bf7/0fe6ec928e6041d0b383c7476a16faa6 [2020-10-20 05:51:45,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 05:51:45,625 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 05:51:45,626 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 05:51:45,626 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 05:51:45,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 05:51:45,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:51:45" (1/1) ... [2020-10-20 05:51:45,634 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5550ff93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:51:45, skipping insertion in model container [2020-10-20 05:51:45,634 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:51:45" (1/1) ... [2020-10-20 05:51:45,643 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 05:51:45,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:51:46,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:51:46,312 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-10-20 05:51:46,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:51:46,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:51:46,367 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 05:51:46,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:51:46,467 INFO L208 MainTranslator]: Completed translation [2020-10-20 05:51:46,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:51:46 WrapperNode [2020-10-20 05:51:46,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 05:51:46,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 05:51:46,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 05:51:46,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 05:51:46,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:51:46" (1/1) ... [2020-10-20 05:51:46,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:51:46" (1/1) ... [2020-10-20 05:51:46,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:51:46" (1/1) ... [2020-10-20 05:51:46,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:51:46" (1/1) ... [2020-10-20 05:51:46,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:51:46" (1/1) ... [2020-10-20 05:51:46,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:51:46" (1/1) ... [2020-10-20 05:51:46,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:51:46" (1/1) ... [2020-10-20 05:51:46,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 05:51:46,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 05:51:46,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 05:51:46,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 05:51:46,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:51:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:51:46,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 05:51:46,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 05:51:46,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 05:51:46,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-20 05:51:46,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-20 05:51:46,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-20 05:51:46,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-20 05:51:46,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-20 05:51:46,644 INFO L138 BoogieDeclarations]: Found implementation of procedure SelectionSort [2020-10-20 05:51:46,644 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 05:51:46,644 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-20 05:51:46,645 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-20 05:51:46,645 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-20 05:51:46,645 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-20 05:51:46,645 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-20 05:51:46,645 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-20 05:51:46,646 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-20 05:51:46,647 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-20 05:51:46,654 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-20 05:51:46,656 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-20 05:51:46,657 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-20 05:51:46,657 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-20 05:51:46,657 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-20 05:51:46,657 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-20 05:51:46,657 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-20 05:51:46,657 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-20 05:51:46,658 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-20 05:51:46,658 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-20 05:51:46,658 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-20 05:51:46,658 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-20 05:51:46,658 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-20 05:51:46,658 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-20 05:51:46,658 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-20 05:51:46,658 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-20 05:51:46,659 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-20 05:51:46,659 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-20 05:51:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-20 05:51:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-20 05:51:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-20 05:51:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-20 05:51:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-20 05:51:46,661 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-20 05:51:46,661 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-20 05:51:46,661 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-20 05:51:46,661 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-20 05:51:46,661 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-20 05:51:46,661 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-20 05:51:46,662 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-20 05:51:46,662 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-20 05:51:46,662 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-20 05:51:46,662 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-20 05:51:46,663 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-20 05:51:46,663 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-20 05:51:46,663 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-20 05:51:46,663 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-20 05:51:46,663 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-20 05:51:46,664 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-20 05:51:46,664 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-20 05:51:46,664 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-20 05:51:46,664 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-20 05:51:46,665 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-20 05:51:46,665 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-20 05:51:46,666 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-20 05:51:46,667 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-20 05:51:46,667 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-20 05:51:46,667 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-20 05:51:46,668 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-20 05:51:46,668 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-20 05:51:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-20 05:51:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-20 05:51:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-20 05:51:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-20 05:51:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-20 05:51:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 05:51:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-20 05:51:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-20 05:51:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-20 05:51:46,673 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-20 05:51:46,673 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-20 05:51:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-20 05:51:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-20 05:51:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-20 05:51:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-20 05:51:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-20 05:51:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-20 05:51:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-20 05:51:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-20 05:51:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-20 05:51:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-20 05:51:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-20 05:51:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-20 05:51:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-20 05:51:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-20 05:51:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-20 05:51:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-20 05:51:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-20 05:51:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-20 05:51:46,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-20 05:51:46,678 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-20 05:51:46,678 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-20 05:51:46,678 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-20 05:51:46,678 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-20 05:51:46,679 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-20 05:51:46,679 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-20 05:51:46,679 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-20 05:51:46,679 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-20 05:51:46,679 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-20 05:51:46,680 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-20 05:51:46,680 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-20 05:51:46,680 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-20 05:51:46,681 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-20 05:51:46,682 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-20 05:51:46,682 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-20 05:51:46,682 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-20 05:51:46,682 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-20 05:51:46,683 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-20 05:51:46,683 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-20 05:51:46,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-20 05:51:46,683 INFO L130 BoogieDeclarations]: Found specification of procedure SelectionSort [2020-10-20 05:51:46,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 05:51:46,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 05:51:46,684 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 05:51:46,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 05:51:46,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 05:51:46,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 05:51:46,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 05:51:46,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 05:51:47,497 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 05:51:47,497 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-20 05:51:47,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:51:47 BoogieIcfgContainer [2020-10-20 05:51:47,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 05:51:47,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 05:51:47,502 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 05:51:47,506 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 05:51:47,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:51:45" (1/3) ... [2020-10-20 05:51:47,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4596a29e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:51:47, skipping insertion in model container [2020-10-20 05:51:47,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:51:46" (2/3) ... [2020-10-20 05:51:47,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4596a29e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:51:47, skipping insertion in model container [2020-10-20 05:51:47,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:51:47" (3/3) ... [2020-10-20 05:51:47,521 INFO L111 eAbstractionObserver]: Analyzing ICFG selectionsort-alloca-1.i [2020-10-20 05:51:47,533 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 05:51:47,540 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2020-10-20 05:51:47,551 INFO L253 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2020-10-20 05:51:47,569 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 05:51:47,569 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 05:51:47,569 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 05:51:47,569 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 05:51:47,569 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 05:51:47,569 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 05:51:47,569 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 05:51:47,570 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 05:51:47,583 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2020-10-20 05:51:47,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 05:51:47,593 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:51:47,594 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:51:47,594 INFO L429 AbstractCegarLoop]: === Iteration 1 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:51:47,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:51:47,611 INFO L82 PathProgramCache]: Analyzing trace with hash 283903755, now seen corresponding path program 1 times [2020-10-20 05:51:47,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:51:47,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1253248737] [2020-10-20 05:51:47,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-20 05:51:47,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:51:47,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 05:51:47,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:51:47,873 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 05:51:47,874 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:51:47,886 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:51:47,887 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:51:47,887 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2020-10-20 05:51:47,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:51:47,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:51:48,047 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 12 [2020-10-20 05:51:48,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:51:48,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1253248737] [2020-10-20 05:51:48,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:51:48,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-20 05:51:48,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491464582] [2020-10-20 05:51:48,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 05:51:48,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:51:48,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 05:51:48,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 05:51:48,123 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 6 states. [2020-10-20 05:51:48,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:51:48,734 INFO L93 Difference]: Finished difference Result 74 states and 82 transitions. [2020-10-20 05:51:48,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 05:51:48,736 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-20 05:51:48,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:51:48,746 INFO L225 Difference]: With dead ends: 74 [2020-10-20 05:51:48,746 INFO L226 Difference]: Without dead ends: 69 [2020-10-20 05:51:48,747 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-20 05:51:48,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-20 05:51:48,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 50. [2020-10-20 05:51:48,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-20 05:51:48,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2020-10-20 05:51:48,790 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 10 [2020-10-20 05:51:48,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:51:48,791 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2020-10-20 05:51:48,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 05:51:48,791 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2020-10-20 05:51:48,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 05:51:48,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:51:48,792 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:51:49,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 05:51:49,023 INFO L429 AbstractCegarLoop]: === Iteration 2 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:51:49,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:51:49,024 INFO L82 PathProgramCache]: Analyzing trace with hash 283903754, now seen corresponding path program 1 times [2020-10-20 05:51:49,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:51:49,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [155813233] [2020-10-20 05:51:49,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-20 05:51:49,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:51:49,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 05:51:49,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:51:49,174 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 05:51:49,174 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:51:49,182 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:51:49,182 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:51:49,183 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 05:51:49,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:51:49,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:51:49,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:51:49,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [155813233] [2020-10-20 05:51:49,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:51:49,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 05:51:49,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605394363] [2020-10-20 05:51:49,214 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 05:51:49,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:51:49,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 05:51:49,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:51:49,215 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand 3 states. [2020-10-20 05:51:49,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:51:49,356 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2020-10-20 05:51:49,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 05:51:49,356 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-20 05:51:49,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:51:49,358 INFO L225 Difference]: With dead ends: 49 [2020-10-20 05:51:49,358 INFO L226 Difference]: Without dead ends: 49 [2020-10-20 05:51:49,359 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:51:49,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-20 05:51:49,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-10-20 05:51:49,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-20 05:51:49,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2020-10-20 05:51:49,373 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 10 [2020-10-20 05:51:49,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:51:49,373 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2020-10-20 05:51:49,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 05:51:49,373 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2020-10-20 05:51:49,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 05:51:49,374 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:51:49,374 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:51:49,598 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 05:51:49,598 INFO L429 AbstractCegarLoop]: === Iteration 3 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:51:49,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:51:49,598 INFO L82 PathProgramCache]: Analyzing trace with hash -293040786, now seen corresponding path program 1 times [2020-10-20 05:51:49,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:51:49,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [797023317] [2020-10-20 05:51:49,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-20 05:51:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:51:49,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 05:51:49,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:51:49,737 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 05:51:49,737 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:51:49,743 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:51:49,743 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:51:49,743 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 05:51:49,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:51:49,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:51:49,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:51:49,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [797023317] [2020-10-20 05:51:49,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:51:49,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-20 05:51:49,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726236157] [2020-10-20 05:51:49,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 05:51:49,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:51:49,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 05:51:49,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 05:51:49,775 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand 5 states. [2020-10-20 05:51:49,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:51:49,994 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2020-10-20 05:51:49,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 05:51:49,995 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-20 05:51:49,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:51:49,996 INFO L225 Difference]: With dead ends: 43 [2020-10-20 05:51:49,996 INFO L226 Difference]: Without dead ends: 43 [2020-10-20 05:51:49,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 05:51:49,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-20 05:51:50,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-10-20 05:51:50,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-20 05:51:50,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2020-10-20 05:51:50,013 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 14 [2020-10-20 05:51:50,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:51:50,013 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2020-10-20 05:51:50,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 05:51:50,013 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2020-10-20 05:51:50,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 05:51:50,014 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:51:50,014 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:51:50,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 05:51:50,215 INFO L429 AbstractCegarLoop]: === Iteration 4 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:51:50,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:51:50,216 INFO L82 PathProgramCache]: Analyzing trace with hash -293040785, now seen corresponding path program 1 times [2020-10-20 05:51:50,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:51:50,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [128677480] [2020-10-20 05:51:50,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-20 05:51:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:51:50,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 05:51:50,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:51:50,355 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-20 05:51:50,356 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:51:50,372 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:51:50,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [128677480] [2020-10-20 05:51:50,375 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:51:50,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [195585998] [2020-10-20 05:51:50,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:51:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:51:50,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 05:51:50,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:51:50,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:51:50,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:51:50,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:51:50,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:51:50,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-20 05:51:50,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582114916] [2020-10-20 05:51:50,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 05:51:50,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:51:50,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 05:51:50,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-20 05:51:50,620 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand 6 states. [2020-10-20 05:51:50,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:51:50,702 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2020-10-20 05:51:50,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 05:51:50,705 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-20 05:51:50,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:51:50,706 INFO L225 Difference]: With dead ends: 45 [2020-10-20 05:51:50,706 INFO L226 Difference]: Without dead ends: 45 [2020-10-20 05:51:50,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-20 05:51:50,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-20 05:51:50,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2020-10-20 05:51:50,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-20 05:51:50,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2020-10-20 05:51:50,712 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 14 [2020-10-20 05:51:50,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:51:50,712 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2020-10-20 05:51:50,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 05:51:50,712 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2020-10-20 05:51:50,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 05:51:50,713 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:51:50,713 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:51:51,115 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3,6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:51:51,115 INFO L429 AbstractCegarLoop]: === Iteration 5 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:51:51,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:51:51,116 INFO L82 PathProgramCache]: Analyzing trace with hash 505832910, now seen corresponding path program 1 times [2020-10-20 05:51:51,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:51:51,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [652702201] [2020-10-20 05:51:51,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-20 05:51:51,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:51:51,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 05:51:51,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:51:51,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:51:51,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:51:51,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [652702201] [2020-10-20 05:51:51,259 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:51:51,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1046842482] [2020-10-20 05:51:51,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:51:51,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:51:51,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 05:51:51,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:51:51,443 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:51:51,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:51:51,494 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:51:51,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 05:51:51,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-10-20 05:51:51,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482450816] [2020-10-20 05:51:51,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 05:51:51,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:51:51,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 05:51:51,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-20 05:51:51,497 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 8 states. [2020-10-20 05:51:51,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:51:51,586 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2020-10-20 05:51:51,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 05:51:51,587 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-10-20 05:51:51,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:51:51,588 INFO L225 Difference]: With dead ends: 51 [2020-10-20 05:51:51,588 INFO L226 Difference]: Without dead ends: 51 [2020-10-20 05:51:51,589 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-20 05:51:51,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-20 05:51:51,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 47. [2020-10-20 05:51:51,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-20 05:51:51,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2020-10-20 05:51:51,594 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 14 [2020-10-20 05:51:51,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:51:51,594 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2020-10-20 05:51:51,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 05:51:51,594 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2020-10-20 05:51:51,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 05:51:51,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:51:51,595 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:51:52,002 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3,8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:51:52,003 INFO L429 AbstractCegarLoop]: === Iteration 6 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:51:52,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:51:52,004 INFO L82 PathProgramCache]: Analyzing trace with hash -303513716, now seen corresponding path program 1 times [2020-10-20 05:51:52,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:51:52,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1880922061] [2020-10-20 05:51:52,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-10-20 05:51:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:51:52,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-20 05:51:52,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:51:52,120 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-20 05:51:52,120 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:51:52,137 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:51:52,137 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:51:52,137 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-20 05:51:52,240 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:51:52,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:51:52,616 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:51:52,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1880922061] [2020-10-20 05:51:52,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 05:51:52,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2020-10-20 05:51:52,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381112491] [2020-10-20 05:51:52,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 05:51:52,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:51:52,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 05:51:52,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-20 05:51:52,618 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand 10 states. [2020-10-20 05:51:52,972 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-10-20 05:51:53,171 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-10-20 05:51:53,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:51:53,869 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2020-10-20 05:51:53,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 05:51:53,871 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2020-10-20 05:51:53,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:51:53,872 INFO L225 Difference]: With dead ends: 67 [2020-10-20 05:51:53,872 INFO L226 Difference]: Without dead ends: 67 [2020-10-20 05:51:53,872 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2020-10-20 05:51:53,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-20 05:51:53,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 59. [2020-10-20 05:51:53,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-20 05:51:53,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2020-10-20 05:51:53,879 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 14 [2020-10-20 05:51:53,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:51:53,880 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2020-10-20 05:51:53,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 05:51:53,880 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2020-10-20 05:51:53,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 05:51:53,881 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:51:53,881 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:51:54,082 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-20 05:51:54,083 INFO L429 AbstractCegarLoop]: === Iteration 7 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:51:54,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:51:54,084 INFO L82 PathProgramCache]: Analyzing trace with hash 912095476, now seen corresponding path program 1 times [2020-10-20 05:51:54,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:51:54,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768038354] [2020-10-20 05:51:54,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-10-20 05:51:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:51:54,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 05:51:54,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:51:54,205 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 05:51:54,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:51:54,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 05:51:54,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768038354] [2020-10-20 05:51:54,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:51:54,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-20 05:51:54,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596017208] [2020-10-20 05:51:54,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 05:51:54,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:51:54,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 05:51:54,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-20 05:51:54,271 INFO L87 Difference]: Start difference. First operand 59 states and 66 transitions. Second operand 8 states. [2020-10-20 05:51:54,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:51:54,452 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2020-10-20 05:51:54,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 05:51:54,453 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-10-20 05:51:54,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:51:54,457 INFO L225 Difference]: With dead ends: 67 [2020-10-20 05:51:54,458 INFO L226 Difference]: Without dead ends: 67 [2020-10-20 05:51:54,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-20 05:51:54,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-20 05:51:54,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 64. [2020-10-20 05:51:54,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-20 05:51:54,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 71 transitions. [2020-10-20 05:51:54,474 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 71 transitions. Word has length 18 [2020-10-20 05:51:54,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:51:54,475 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 71 transitions. [2020-10-20 05:51:54,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 05:51:54,477 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 71 transitions. [2020-10-20 05:51:54,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 05:51:54,478 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:51:54,479 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:51:54,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-10-20 05:51:54,699 INFO L429 AbstractCegarLoop]: === Iteration 8 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:51:54,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:51:54,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1170260914, now seen corresponding path program 1 times [2020-10-20 05:51:54,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:51:54,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [931276889] [2020-10-20 05:51:54,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-10-20 05:51:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:51:54,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-20 05:51:54,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:51:54,817 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-20 05:51:54,818 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:51:54,836 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:51:54,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [931276889] [2020-10-20 05:51:54,838 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:51:54,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1914124530] [2020-10-20 05:51:54,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:51:55,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:51:55,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-20 05:51:55,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:51:55,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:51:55,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:51:55,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:51:55,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 05:51:55,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2020-10-20 05:51:55,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964412560] [2020-10-20 05:51:55,370 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-20 05:51:55,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:51:55,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-20 05:51:55,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2020-10-20 05:51:55,371 INFO L87 Difference]: Start difference. First operand 64 states and 71 transitions. Second operand 14 states. [2020-10-20 05:51:55,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:51:55,839 INFO L93 Difference]: Finished difference Result 72 states and 78 transitions. [2020-10-20 05:51:55,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-20 05:51:55,840 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-10-20 05:51:55,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:51:55,843 INFO L225 Difference]: With dead ends: 72 [2020-10-20 05:51:55,843 INFO L226 Difference]: Without dead ends: 72 [2020-10-20 05:51:55,844 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2020-10-20 05:51:55,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-20 05:51:55,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 64. [2020-10-20 05:51:55,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-20 05:51:55,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 71 transitions. [2020-10-20 05:51:55,849 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 71 transitions. Word has length 18 [2020-10-20 05:51:55,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:51:55,849 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 71 transitions. [2020-10-20 05:51:55,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-20 05:51:55,850 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 71 transitions. [2020-10-20 05:51:55,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-20 05:51:55,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:51:55,851 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:51:56,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk,11 mathsat -unsat_core_generation=3 [2020-10-20 05:51:56,254 INFO L429 AbstractCegarLoop]: === Iteration 9 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:51:56,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:51:56,255 INFO L82 PathProgramCache]: Analyzing trace with hash 349735848, now seen corresponding path program 1 times [2020-10-20 05:51:56,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:51:56,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1864215514] [2020-10-20 05:51:56,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2020-10-20 05:51:56,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:51:56,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 05:51:56,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:51:56,352 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 05:51:56,352 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:51:56,353 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:51:56,354 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:51:56,354 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 05:51:56,415 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:51:56,416 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-10-20 05:51:56,418 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:51:56,437 INFO L625 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2020-10-20 05:51:56,440 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:51:56,443 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-20 05:51:56,443 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2020-10-20 05:51:56,444 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:51:56,458 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:51:56,475 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:51:56,491 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:51:56,518 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:51:56,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 05:51:56,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:00,676 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 05:52:00,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1864215514] [2020-10-20 05:52:00,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:00,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2020-10-20 05:52:00,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234827713] [2020-10-20 05:52:00,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 05:52:00,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:00,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 05:52:00,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=49, Unknown=2, NotChecked=0, Total=72 [2020-10-20 05:52:00,678 INFO L87 Difference]: Start difference. First operand 64 states and 71 transitions. Second operand 9 states. [2020-10-20 05:52:00,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:00,992 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2020-10-20 05:52:00,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 05:52:00,993 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-10-20 05:52:00,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:00,994 INFO L225 Difference]: With dead ends: 63 [2020-10-20 05:52:00,994 INFO L226 Difference]: Without dead ends: 48 [2020-10-20 05:52:00,994 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 5 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=34, Invalid=74, Unknown=2, NotChecked=0, Total=110 [2020-10-20 05:52:00,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-20 05:52:00,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-20 05:52:00,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-20 05:52:00,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2020-10-20 05:52:00,999 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 20 [2020-10-20 05:52:00,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:00,999 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2020-10-20 05:52:00,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 05:52:01,000 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2020-10-20 05:52:01,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 05:52:01,000 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:01,000 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:01,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-10-20 05:52:01,201 INFO L429 AbstractCegarLoop]: === Iteration 10 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:52:01,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:01,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1033773173, now seen corresponding path program 2 times [2020-10-20 05:52:01,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:01,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1828884435] [2020-10-20 05:52:01,204 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2020-10-20 05:52:01,287 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-20 05:52:01,288 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 05:52:01,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 05:52:01,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:01,310 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-20 05:52:01,310 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:52:01,325 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:52:01,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1828884435] [2020-10-20 05:52:01,327 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:52:01,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1112184866] [2020-10-20 05:52:01,327 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:52:01,508 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-20 05:52:01,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 05:52:01,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 05:52:01,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:01,605 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-20 05:52:01,605 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:01,840 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-20 05:52:01,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:01,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-10-20 05:52:01,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063893223] [2020-10-20 05:52:01,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 05:52:01,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:01,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 05:52:01,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-20 05:52:01,842 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand 10 states. [2020-10-20 05:52:02,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:02,621 INFO L93 Difference]: Finished difference Result 88 states and 97 transitions. [2020-10-20 05:52:02,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 05:52:02,623 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-10-20 05:52:02,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:02,624 INFO L225 Difference]: With dead ends: 88 [2020-10-20 05:52:02,624 INFO L226 Difference]: Without dead ends: 88 [2020-10-20 05:52:02,624 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-20 05:52:02,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-10-20 05:52:02,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 64. [2020-10-20 05:52:02,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-20 05:52:02,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 77 transitions. [2020-10-20 05:52:02,630 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 77 transitions. Word has length 22 [2020-10-20 05:52:02,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:02,630 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 77 transitions. [2020-10-20 05:52:02,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 05:52:02,630 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 77 transitions. [2020-10-20 05:52:02,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 05:52:02,631 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:02,631 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:03,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3,15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:52:03,042 INFO L429 AbstractCegarLoop]: === Iteration 11 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:52:03,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:03,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1033773219, now seen corresponding path program 1 times [2020-10-20 05:52:03,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:03,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752877298] [2020-10-20 05:52:03,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 16 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with mathsat -unsat_core_generation=3 [2020-10-20 05:52:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:03,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 16 conjunts are in the unsatisfiable core [2020-10-20 05:52:03,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:03,162 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-20 05:52:03,163 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:52:03,185 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:52:03,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [752877298] [2020-10-20 05:52:03,187 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:52:03,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1349939380] [2020-10-20 05:52:03,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:52:03,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:03,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 18 conjunts are in the unsatisfiable core [2020-10-20 05:52:03,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:03,397 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-20 05:52:03,398 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:52:03,415 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:52:03,415 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:52:03,415 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-20 05:52:03,728 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:03,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:04,751 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:04,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 05:52:04,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 18 [2020-10-20 05:52:04,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632352308] [2020-10-20 05:52:04,753 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-20 05:52:04,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:04,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-20 05:52:04,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2020-10-20 05:52:04,754 INFO L87 Difference]: Start difference. First operand 64 states and 77 transitions. Second operand 19 states. [2020-10-20 05:52:06,141 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-10-20 05:52:07,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:07,816 INFO L93 Difference]: Finished difference Result 117 states and 129 transitions. [2020-10-20 05:52:07,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-20 05:52:07,817 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 22 [2020-10-20 05:52:07,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:07,818 INFO L225 Difference]: With dead ends: 117 [2020-10-20 05:52:07,818 INFO L226 Difference]: Without dead ends: 117 [2020-10-20 05:52:07,819 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=142, Invalid=614, Unknown=0, NotChecked=0, Total=756 [2020-10-20 05:52:07,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-20 05:52:07,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 79. [2020-10-20 05:52:07,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-20 05:52:07,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 97 transitions. [2020-10-20 05:52:07,826 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 97 transitions. Word has length 22 [2020-10-20 05:52:07,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:07,826 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 97 transitions. [2020-10-20 05:52:07,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-20 05:52:07,827 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 97 transitions. [2020-10-20 05:52:07,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 05:52:07,827 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:07,827 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:08,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3,17 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:52:08,229 INFO L429 AbstractCegarLoop]: === Iteration 12 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:52:08,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:08,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1982198736, now seen corresponding path program 1 times [2020-10-20 05:52:08,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:08,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1994040429] [2020-10-20 05:52:08,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 18 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with mathsat -unsat_core_generation=3 [2020-10-20 05:52:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:08,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-20 05:52:08,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:08,361 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-20 05:52:08,361 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:52:08,377 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:52:08,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1994040429] [2020-10-20 05:52:08,378 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:52:08,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [847530943] [2020-10-20 05:52:08,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:52:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:08,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 18 conjunts are in the unsatisfiable core [2020-10-20 05:52:08,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:08,645 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-20 05:52:08,645 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:52:08,671 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:52:08,672 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:52:08,672 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-20 05:52:08,965 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:08,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:09,931 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:09,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 05:52:09,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 18 [2020-10-20 05:52:09,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769407077] [2020-10-20 05:52:09,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-20 05:52:09,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:09,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-20 05:52:09,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2020-10-20 05:52:09,933 INFO L87 Difference]: Start difference. First operand 79 states and 97 transitions. Second operand 19 states. [2020-10-20 05:52:12,238 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-10-20 05:52:13,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:13,650 INFO L93 Difference]: Finished difference Result 166 states and 187 transitions. [2020-10-20 05:52:13,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-20 05:52:13,651 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 23 [2020-10-20 05:52:13,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:13,652 INFO L225 Difference]: With dead ends: 166 [2020-10-20 05:52:13,653 INFO L226 Difference]: Without dead ends: 166 [2020-10-20 05:52:13,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=186, Invalid=744, Unknown=0, NotChecked=0, Total=930 [2020-10-20 05:52:13,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-10-20 05:52:13,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 114. [2020-10-20 05:52:13,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-20 05:52:13,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 142 transitions. [2020-10-20 05:52:13,662 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 142 transitions. Word has length 23 [2020-10-20 05:52:13,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:13,662 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 142 transitions. [2020-10-20 05:52:13,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-20 05:52:13,662 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 142 transitions. [2020-10-20 05:52:13,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-20 05:52:13,663 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:13,664 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:14,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 mathsat -unsat_core_generation=3,19 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:52:14,076 INFO L429 AbstractCegarLoop]: === Iteration 13 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:52:14,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:14,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1198710709, now seen corresponding path program 1 times [2020-10-20 05:52:14,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:14,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1619289889] [2020-10-20 05:52:14,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 20 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with mathsat -unsat_core_generation=3 [2020-10-20 05:52:14,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:14,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 18 conjunts are in the unsatisfiable core [2020-10-20 05:52:14,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:14,191 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-20 05:52:14,191 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:52:14,205 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:52:14,205 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:52:14,206 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:19 [2020-10-20 05:52:14,530 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-20 05:52:14,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:15,644 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-20 05:52:15,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1619289889] [2020-10-20 05:52:15,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 05:52:15,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2020-10-20 05:52:15,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905859468] [2020-10-20 05:52:15,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-20 05:52:15,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:15,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-20 05:52:15,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2020-10-20 05:52:15,647 INFO L87 Difference]: Start difference. First operand 114 states and 142 transitions. Second operand 18 states. [2020-10-20 05:52:16,504 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2020-10-20 05:52:17,115 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-10-20 05:52:17,389 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2020-10-20 05:52:17,754 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-10-20 05:52:18,250 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-10-20 05:52:18,948 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-10-20 05:52:19,753 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-20 05:52:20,247 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-10-20 05:52:20,625 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-10-20 05:52:21,086 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-10-20 05:52:21,465 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-10-20 05:52:21,911 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-10-20 05:52:22,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:22,314 INFO L93 Difference]: Finished difference Result 237 states and 295 transitions. [2020-10-20 05:52:22,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-20 05:52:22,318 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 27 [2020-10-20 05:52:22,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:22,320 INFO L225 Difference]: With dead ends: 237 [2020-10-20 05:52:22,320 INFO L226 Difference]: Without dead ends: 237 [2020-10-20 05:52:22,321 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=296, Invalid=964, Unknown=0, NotChecked=0, Total=1260 [2020-10-20 05:52:22,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-10-20 05:52:22,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 184. [2020-10-20 05:52:22,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-10-20 05:52:22,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 243 transitions. [2020-10-20 05:52:22,330 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 243 transitions. Word has length 27 [2020-10-20 05:52:22,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:22,331 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 243 transitions. [2020-10-20 05:52:22,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-20 05:52:22,331 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 243 transitions. [2020-10-20 05:52:22,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 05:52:22,332 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:22,332 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:22,552 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 mathsat -unsat_core_generation=3 [2020-10-20 05:52:22,552 INFO L429 AbstractCegarLoop]: === Iteration 14 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:52:22,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:22,552 INFO L82 PathProgramCache]: Analyzing trace with hash 428447189, now seen corresponding path program 2 times [2020-10-20 05:52:22,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:22,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1399593908] [2020-10-20 05:52:22,553 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 21 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with mathsat -unsat_core_generation=3 [2020-10-20 05:52:22,652 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 05:52:22,653 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 05:52:22,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-20 05:52:22,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:22,673 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-20 05:52:22,673 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:52:22,691 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:52:22,692 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:52:22,692 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-20 05:52:22,973 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:22,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:23,563 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-20 05:52:26,357 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:26,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1399593908] [2020-10-20 05:52:26,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 05:52:26,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2020-10-20 05:52:26,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740755176] [2020-10-20 05:52:26,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-20 05:52:26,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:26,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-20 05:52:26,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=243, Unknown=1, NotChecked=0, Total=342 [2020-10-20 05:52:26,359 INFO L87 Difference]: Start difference. First operand 184 states and 243 transitions. Second operand 19 states. [2020-10-20 05:52:28,676 WARN L193 SmtUtils]: Spent 837.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-20 05:52:29,833 WARN L193 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-20 05:52:35,755 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-20 05:52:39,301 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-20 05:52:45,945 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-10-20 05:52:50,533 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-10-20 05:52:51,107 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2020-10-20 05:52:51,624 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-10-20 05:52:51,991 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-10-20 05:52:52,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:52,867 INFO L93 Difference]: Finished difference Result 214 states and 279 transitions. [2020-10-20 05:52:52,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-20 05:52:52,871 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 26 [2020-10-20 05:52:52,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:52,873 INFO L225 Difference]: With dead ends: 214 [2020-10-20 05:52:52,873 INFO L226 Difference]: Without dead ends: 214 [2020-10-20 05:52:52,874 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 20.1s TimeCoverageRelationStatistics Valid=375, Invalid=741, Unknown=6, NotChecked=0, Total=1122 [2020-10-20 05:52:52,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-10-20 05:52:52,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 208. [2020-10-20 05:52:52,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-10-20 05:52:52,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 273 transitions. [2020-10-20 05:52:52,881 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 273 transitions. Word has length 26 [2020-10-20 05:52:52,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:52,881 INFO L481 AbstractCegarLoop]: Abstraction has 208 states and 273 transitions. [2020-10-20 05:52:52,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-20 05:52:52,881 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 273 transitions. [2020-10-20 05:52:52,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-20 05:52:52,882 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:52,883 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:53,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 mathsat -unsat_core_generation=3 [2020-10-20 05:52:53,089 INFO L429 AbstractCegarLoop]: === Iteration 15 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:52:53,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:53,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1494673666, now seen corresponding path program 1 times [2020-10-20 05:52:53,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:53,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1804967022] [2020-10-20 05:52:53,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 22 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with mathsat -unsat_core_generation=3 [2020-10-20 05:52:53,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:53,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-20 05:52:53,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:53,216 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-20 05:52:53,217 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:52:53,231 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:52:53,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1804967022] [2020-10-20 05:52:53,232 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:52:53,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1197977683] [2020-10-20 05:52:53,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 23 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:52:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:53,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-20 05:52:53,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:53,646 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:53,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:54,002 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:54,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 05:52:54,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 21 [2020-10-20 05:52:54,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205027157] [2020-10-20 05:52:54,003 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-20 05:52:54,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:54,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-20 05:52:54,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2020-10-20 05:52:54,004 INFO L87 Difference]: Start difference. First operand 208 states and 273 transitions. Second operand 21 states. [2020-10-20 05:52:54,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:54,887 INFO L93 Difference]: Finished difference Result 191 states and 234 transitions. [2020-10-20 05:52:54,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-20 05:52:54,888 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 28 [2020-10-20 05:52:54,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:54,889 INFO L225 Difference]: With dead ends: 191 [2020-10-20 05:52:54,890 INFO L226 Difference]: Without dead ends: 191 [2020-10-20 05:52:54,890 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=133, Invalid=623, Unknown=0, NotChecked=0, Total=756 [2020-10-20 05:52:54,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-10-20 05:52:54,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 187. [2020-10-20 05:52:54,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-10-20 05:52:54,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 234 transitions. [2020-10-20 05:52:54,898 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 234 transitions. Word has length 28 [2020-10-20 05:52:54,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:54,898 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 234 transitions. [2020-10-20 05:52:54,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-20 05:52:54,899 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 234 transitions. [2020-10-20 05:52:54,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-20 05:52:54,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:54,902 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:55,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 mathsat -unsat_core_generation=3,23 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:52:55,312 INFO L429 AbstractCegarLoop]: === Iteration 16 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:52:55,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:55,313 INFO L82 PathProgramCache]: Analyzing trace with hash 909712936, now seen corresponding path program 1 times [2020-10-20 05:52:55,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:55,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [224179899] [2020-10-20 05:52:55,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 24 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with mathsat -unsat_core_generation=3 [2020-10-20 05:52:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:55,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-20 05:52:55,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:55,459 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-20 05:52:55,459 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:52:55,474 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:52:55,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [224179899] [2020-10-20 05:52:55,475 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:52:55,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [953854717] [2020-10-20 05:52:55,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 25 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:52:55,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:55,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 19 conjunts are in the unsatisfiable core [2020-10-20 05:52:55,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:55,788 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-20 05:52:55,789 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:52:55,809 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:52:55,810 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:52:55,810 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-20 05:52:55,987 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:52:55,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244601101] [2020-10-20 05:52:55,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 05:52:56,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:56,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-20 05:52:56,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:56,096 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-20 05:52:56,096 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:52:56,112 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:52:56,112 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:52:56,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:56,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-20 05:52:56,113 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-20 05:52:56,113 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 05:52:56,718 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,25 cvc4 --incremental --print-success --lang smt --rewrite-divk,24 mathsat -unsat_core_generation=3 [2020-10-20 05:52:56,734 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-20 05:52:56,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:52:56 BoogieIcfgContainer [2020-10-20 05:52:56,734 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 05:52:56,735 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 05:52:56,735 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 05:52:56,735 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 05:52:56,736 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:51:47" (3/4) ... [2020-10-20 05:52:56,739 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 05:52:56,739 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 05:52:56,741 INFO L168 Benchmark]: Toolchain (without parser) took 71121.94 ms. Allocated memory was 34.1 MB in the beginning and 80.7 MB in the end (delta: 46.7 MB). Free memory was 10.0 MB in the beginning and 15.0 MB in the end (delta: -4.9 MB). Peak memory consumption was 41.7 MB. Max. memory is 14.3 GB. [2020-10-20 05:52:56,741 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 33.6 MB. Free memory was 18.3 MB in the beginning and 18.3 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. [2020-10-20 05:52:56,741 INFO L168 Benchmark]: CACSL2BoogieTranslator took 842.82 ms. Allocated memory was 34.1 MB in the beginning and 44.0 MB in the end (delta: 10.0 MB). Free memory was 9.2 MB in the beginning and 19.6 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.9 MB. Max. memory is 14.3 GB. [2020-10-20 05:52:56,742 INFO L168 Benchmark]: Boogie Preprocessor took 108.48 ms. Allocated memory is still 44.0 MB. Free memory was 19.6 MB in the beginning and 16.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 14.3 GB. [2020-10-20 05:52:56,742 INFO L168 Benchmark]: RCFGBuilder took 922.61 ms. Allocated memory was 44.0 MB in the beginning and 47.2 MB in the end (delta: 3.1 MB). Free memory was 16.6 MB in the beginning and 16.6 MB in the end (delta: 4.2 kB). Peak memory consumption was 6.9 MB. Max. memory is 14.3 GB. [2020-10-20 05:52:56,742 INFO L168 Benchmark]: TraceAbstraction took 69232.90 ms. Allocated memory was 47.2 MB in the beginning and 80.7 MB in the end (delta: 33.6 MB). Free memory was 16.2 MB in the beginning and 16.0 MB in the end (delta: 219.5 kB). Peak memory consumption was 33.8 MB. Max. memory is 14.3 GB. [2020-10-20 05:52:56,743 INFO L168 Benchmark]: Witness Printer took 4.54 ms. Allocated memory is still 80.7 MB. Free memory was 16.0 MB in the beginning and 15.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. [2020-10-20 05:52:56,745 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 33.6 MB. Free memory was 18.3 MB in the beginning and 18.3 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 842.82 ms. Allocated memory was 34.1 MB in the beginning and 44.0 MB in the end (delta: 10.0 MB). Free memory was 9.2 MB in the beginning and 19.6 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.9 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 108.48 ms. Allocated memory is still 44.0 MB. Free memory was 19.6 MB in the beginning and 16.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 14.3 GB. * RCFGBuilder took 922.61 ms. Allocated memory was 44.0 MB in the beginning and 47.2 MB in the end (delta: 3.1 MB). Free memory was 16.6 MB in the beginning and 16.6 MB in the end (delta: 4.2 kB). Peak memory consumption was 6.9 MB. Max. memory is 14.3 GB. * TraceAbstraction took 69232.90 ms. Allocated memory was 47.2 MB in the beginning and 80.7 MB in the end (delta: 33.6 MB). Free memory was 16.2 MB in the beginning and 16.0 MB in the end (delta: 219.5 kB). Peak memory consumption was 33.8 MB. Max. memory is 14.3 GB. * Witness Printer took 4.54 ms. Allocated memory is still 80.7 MB. Free memory was 16.0 MB in the beginning and 15.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 525]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L530] int array_size = __VERIFIER_nondet_int(); [L531] COND FALSE !(array_size < 1 || array_size >= 2147483647 / sizeof(int)) [L534] int* numbers = (int*) __builtin_alloca (array_size * sizeof(int)); [L536] int i = 0; [L536] COND TRUE i < array_size [L538] numbers[i] = __VERIFIER_nondet_int() [L536] i++ [L536] COND TRUE i < array_size [L538] numbers[i] = __VERIFIER_nondet_int() [L536] i++ [L536] COND FALSE !(i < array_size) [L540] CALL SelectionSort(numbers, array_size) [L514] int i; [L515] i = 0 [L515] COND TRUE i < array_size - 1 [L517] int j, min, temp; [L518] min = i [L519] j = i+1 [L519] COND TRUE j < array_size [L521] EXPR a[j] [L521] EXPR a[min] [L521] COND TRUE a[j] < a[min] [L522] min = j [L519] ++j [L519] COND FALSE !(j < array_size) [L524] EXPR a[i] [L524] temp = a[i] [L525] a[min] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 70 locations, 15 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 69.1s, OverallIterations: 16, TraceHistogramMax: 5, AutomataDifference: 45.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 477 SDtfs, 1817 SDslu, 1919 SDs, 0 SdLazy, 2139 SolverSat, 298 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 17.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 686 GetRequests, 451 SyntacticMatches, 7 SemanticMatches, 228 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1085 ImplicationChecksByTransitivity, 39.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=208occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 223 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 14.6s InterpolantComputationTime, 280 NumberOfCodeBlocks, 272 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 530 ConstructedInterpolants, 22 QuantifiedInterpolants, 125883 SizeOfPredicates, 67 NumberOfNonLiveVariables, 890 ConjunctsInSsa, 143 ConjunctsInUnsatCore, 30 InterpolantComputations, 14 PerfectInterpolantSequences, 34/148 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...