./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety/bubblesort-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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/bubblesort-alloca-2.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 a2eb39e0d0d0fa911fcf8a16c5f9511be1d37325 ............................................................................................................................. 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 -Xmx12G -Xms1G -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/bubblesort-alloca-2.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 a2eb39e0d0d0fa911fcf8a16c5f9511be1d37325 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 17:55:41,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 17:55:41,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 17:55:41,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 17:55:41,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 17:55:41,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 17:55:41,207 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 17:55:41,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 17:55:41,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 17:55:41,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 17:55:41,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 17:55:41,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 17:55:41,221 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 17:55:41,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 17:55:41,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 17:55:41,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 17:55:41,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 17:55:41,231 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 17:55:41,234 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 17:55:41,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 17:55:41,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 17:55:41,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 17:55:41,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 17:55:41,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 17:55:41,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 17:55:41,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 17:55:41,253 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 17:55:41,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 17:55:41,254 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 17:55:41,258 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 17:55:41,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 17:55:41,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 17:55:41,259 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 17:55:41,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 17:55:41,266 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 17:55:41,267 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 17:55:41,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 17:55:41,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 17:55:41,268 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 17:55:41,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 17:55:41,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 17:55:41,271 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-19 17:55:41,313 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 17:55:41,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 17:55:41,315 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 17:55:41,315 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 17:55:41,316 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 17:55:41,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 17:55:41,316 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 17:55:41,316 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 17:55:41,317 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 17:55:41,317 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 17:55:41,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 17:55:41,319 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 17:55:41,319 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 17:55:41,319 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 17:55:41,320 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 17:55:41,320 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 17:55:41,320 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 17:55:41,320 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 17:55:41,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 17:55:41,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 17:55:41,321 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 17:55:41,322 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 17:55:41,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 17:55:41,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 17:55:41,323 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 17:55:41,323 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 17:55:41,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 17:55:41,323 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 17:55:41,324 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 -> a2eb39e0d0d0fa911fcf8a16c5f9511be1d37325 [2020-10-19 17:55:41,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 17:55:41,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 17:55:41,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 17:55:41,672 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 17:55:41,673 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 17:55:41,674 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/bubblesort-alloca-2.i [2020-10-19 17:55:41,736 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/676187e66/8f8192cca38544748b061a2a2dc58b5f/FLAGf324ba88c [2020-10-19 17:55:42,253 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 17:55:42,254 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/bubblesort-alloca-2.i [2020-10-19 17:55:42,270 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/676187e66/8f8192cca38544748b061a2a2dc58b5f/FLAGf324ba88c [2020-10-19 17:55:42,562 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/676187e66/8f8192cca38544748b061a2a2dc58b5f [2020-10-19 17:55:42,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 17:55:42,573 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 17:55:42,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 17:55:42,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 17:55:42,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 17:55:42,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 05:55:42" (1/1) ... [2020-10-19 17:55:42,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f067e3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:42, skipping insertion in model container [2020-10-19 17:55:42,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 05:55:42" (1/1) ... [2020-10-19 17:55:42,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 17:55:42,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 17:55:43,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 17:55:43,033 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) [2020-10-19 17:55:43,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@600575e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:43, skipping insertion in model container [2020-10-19 17:55:43,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 17:55:43,034 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-10-19 17:55:43,037 INFO L168 Benchmark]: Toolchain (without parser) took 468.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 957.3 MB in the beginning and 1.1 GB in the end (delta: -180.3 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2020-10-19 17:55:43,038 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 17:55:43,040 INFO L168 Benchmark]: CACSL2BoogieTranslator took 460.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -185.7 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2020-10-19 17:55:43,042 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 460.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -185.7 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 530]: 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 0.1.25-906a4fb [2020-10-19 17:55:44,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 17:55:44,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 17:55:44,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 17:55:44,790 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 17:55:44,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 17:55:44,793 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 17:55:44,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 17:55:44,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 17:55:44,797 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 17:55:44,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 17:55:44,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 17:55:44,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 17:55:44,801 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 17:55:44,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 17:55:44,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 17:55:44,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 17:55:44,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 17:55:44,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 17:55:44,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 17:55:44,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 17:55:44,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 17:55:44,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 17:55:44,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 17:55:44,818 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 17:55:44,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 17:55:44,818 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 17:55:44,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 17:55:44,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 17:55:44,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 17:55:44,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 17:55:44,822 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 17:55:44,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 17:55:44,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 17:55:44,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 17:55:44,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 17:55:44,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 17:55:44,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 17:55:44,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 17:55:44,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 17:55:44,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 17:55:44,829 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-19 17:55:44,860 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 17:55:44,861 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 17:55:44,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 17:55:44,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 17:55:44,863 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 17:55:44,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 17:55:44,863 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 17:55:44,863 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 17:55:44,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 17:55:44,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 17:55:44,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 17:55:44,865 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 17:55:44,865 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 17:55:44,865 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 17:55:44,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 17:55:44,866 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 17:55:44,866 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-19 17:55:44,866 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-19 17:55:44,866 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 17:55:44,867 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 17:55:44,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 17:55:44,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 17:55:44,867 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 17:55:44,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 17:55:44,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 17:55:44,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 17:55:44,869 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 17:55:44,869 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-19 17:55:44,869 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-19 17:55:44,869 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 17:55:44,870 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-19 17:55:44,870 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 -> a2eb39e0d0d0fa911fcf8a16c5f9511be1d37325 [2020-10-19 17:55:45,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 17:55:45,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 17:55:45,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 17:55:45,221 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 17:55:45,221 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 17:55:45,222 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/bubblesort-alloca-2.i [2020-10-19 17:55:45,288 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f35f03bcc/88cf02102615493b8514a09a0afbdb36/FLAG9fb5f4264 [2020-10-19 17:55:45,821 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 17:55:45,822 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/bubblesort-alloca-2.i [2020-10-19 17:55:45,834 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f35f03bcc/88cf02102615493b8514a09a0afbdb36/FLAG9fb5f4264 [2020-10-19 17:55:46,077 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f35f03bcc/88cf02102615493b8514a09a0afbdb36 [2020-10-19 17:55:46,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 17:55:46,087 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 17:55:46,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 17:55:46,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 17:55:46,092 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 17:55:46,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 05:55:46" (1/1) ... [2020-10-19 17:55:46,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32a659b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:46, skipping insertion in model container [2020-10-19 17:55:46,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 05:55:46" (1/1) ... [2020-10-19 17:55:46,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 17:55:46,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 17:55:46,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 17:55:46,621 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-10-19 17:55:46,634 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 17:55:46,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 17:55:46,684 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 17:55:46,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 17:55:46,783 INFO L208 MainTranslator]: Completed translation [2020-10-19 17:55:46,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:46 WrapperNode [2020-10-19 17:55:46,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 17:55:46,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 17:55:46,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 17:55:46,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 17:55:46,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:46" (1/1) ... [2020-10-19 17:55:46,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:46" (1/1) ... [2020-10-19 17:55:46,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:46" (1/1) ... [2020-10-19 17:55:46,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:46" (1/1) ... [2020-10-19 17:55:46,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:46" (1/1) ... [2020-10-19 17:55:46,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:46" (1/1) ... [2020-10-19 17:55:46,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:46" (1/1) ... [2020-10-19 17:55:46,857 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 17:55:46,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 17:55:46,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 17:55:46,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 17:55:46,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:46" (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 [2020-10-19 17:55:46,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 17:55:46,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 17:55:46,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 17:55:46,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-19 17:55:46,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-19 17:55:46,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-19 17:55:46,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-19 17:55:46,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-19 17:55:46,930 INFO L138 BoogieDeclarations]: Found implementation of procedure bubbleSort [2020-10-19 17:55:46,930 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 17:55:46,931 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-19 17:55:46,931 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-19 17:55:46,931 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-19 17:55:46,931 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-19 17:55:46,932 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-19 17:55:46,932 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-19 17:55:46,932 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-19 17:55:46,932 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-19 17:55:46,933 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-19 17:55:46,933 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-19 17:55:46,933 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-19 17:55:46,933 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-19 17:55:46,933 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-19 17:55:46,934 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-19 17:55:46,934 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-19 17:55:46,934 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-19 17:55:46,934 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-19 17:55:46,935 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-19 17:55:46,935 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-19 17:55:46,935 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-19 17:55:46,935 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-19 17:55:46,935 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-19 17:55:46,936 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-19 17:55:46,936 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-19 17:55:46,936 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-19 17:55:46,936 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-19 17:55:46,936 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-19 17:55:46,937 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-19 17:55:46,937 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-19 17:55:46,937 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-19 17:55:46,937 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-19 17:55:46,938 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-19 17:55:46,938 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-19 17:55:46,938 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-19 17:55:46,938 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-19 17:55:46,938 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-19 17:55:46,939 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-19 17:55:46,939 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-19 17:55:46,939 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-19 17:55:46,939 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-19 17:55:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-19 17:55:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-19 17:55:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-19 17:55:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-19 17:55:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-19 17:55:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-19 17:55:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-19 17:55:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-19 17:55:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-19 17:55:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-19 17:55:46,942 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-19 17:55:46,942 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-19 17:55:46,942 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-19 17:55:46,942 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-19 17:55:46,942 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-19 17:55:46,943 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-19 17:55:46,943 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-19 17:55:46,943 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-19 17:55:46,943 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-19 17:55:46,944 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-19 17:55:46,944 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-19 17:55:46,944 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-19 17:55:46,944 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-19 17:55:46,945 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 17:55:46,945 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-19 17:55:46,945 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-19 17:55:46,945 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-19 17:55:46,946 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-19 17:55:46,946 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-19 17:55:46,946 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-19 17:55:46,946 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-19 17:55:46,946 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-19 17:55:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-19 17:55:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-19 17:55:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-19 17:55:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-19 17:55:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-19 17:55:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-19 17:55:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-19 17:55:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-19 17:55:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-19 17:55:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-19 17:55:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-19 17:55:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-19 17:55:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-19 17:55:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-19 17:55:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-19 17:55:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-19 17:55:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-19 17:55:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-19 17:55:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-19 17:55:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-19 17:55:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-19 17:55:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-19 17:55:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-19 17:55:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-19 17:55:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-19 17:55:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-19 17:55:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-19 17:55:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-19 17:55:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-19 17:55:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-19 17:55:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-19 17:55:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-19 17:55:46,954 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-19 17:55:46,954 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-19 17:55:46,954 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-19 17:55:46,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-19 17:55:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure bubbleSort [2020-10-19 17:55:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-19 17:55:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-19 17:55:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 17:55:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 17:55:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 17:55:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 17:55:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 17:55:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 17:55:47,658 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 17:55:47,658 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-19 17:55:47,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 05:55:47 BoogieIcfgContainer [2020-10-19 17:55:47,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 17:55:47,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 17:55:47,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 17:55:47,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 17:55:47,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 05:55:46" (1/3) ... [2020-10-19 17:55:47,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@198cbbe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 05:55:47, skipping insertion in model container [2020-10-19 17:55:47,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:46" (2/3) ... [2020-10-19 17:55:47,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@198cbbe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 05:55:47, skipping insertion in model container [2020-10-19 17:55:47,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 05:55:47" (3/3) ... [2020-10-19 17:55:47,669 INFO L111 eAbstractionObserver]: Analyzing ICFG bubblesort-alloca-2.i [2020-10-19 17:55:47,681 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 17:55:47,689 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2020-10-19 17:55:47,702 INFO L253 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2020-10-19 17:55:47,719 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 17:55:47,719 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 17:55:47,719 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 17:55:47,719 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 17:55:47,720 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 17:55:47,720 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 17:55:47,720 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 17:55:47,720 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 17:55:47,733 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2020-10-19 17:55:47,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-19 17:55:47,743 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:47,744 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:55:47,744 INFO L429 AbstractCegarLoop]: === Iteration 1 === [bubbleSortErr2REQUIRES_VIOLATION, bubbleSortErr3REQUIRES_VIOLATION, bubbleSortErr8REQUIRES_VIOLATION, bubbleSortErr9REQUIRES_VIOLATION, bubbleSortErr4REQUIRES_VIOLATION, bubbleSortErr5REQUIRES_VIOLATION, bubbleSortErr10REQUIRES_VIOLATION, bubbleSortErr11REQUIRES_VIOLATION, bubbleSortErr0REQUIRES_VIOLATION, bubbleSortErr1REQUIRES_VIOLATION, bubbleSortErr6REQUIRES_VIOLATION, bubbleSortErr7REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:47,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:47,750 INFO L82 PathProgramCache]: Analyzing trace with hash -435715572, now seen corresponding path program 1 times [2020-10-19 17:55:47,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:47,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1682419761] [2020-10-19 17:55:47,765 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 [2020-10-19 17:55:47,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:47,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 17:55:47,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:48,026 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 [2020-10-19 17:55:48,027 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:55:48,039 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:55:48,040 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:55:48,041 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2020-10-19 17:55:48,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:55:48,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:55:48,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:55:48,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1682419761] [2020-10-19 17:55:48,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:55:48,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-19 17:55:48,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605096251] [2020-10-19 17:55:48,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 17:55:48,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:55:48,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 17:55:48,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 17:55:48,257 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 6 states. [2020-10-19 17:55:48,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:55:48,924 INFO L93 Difference]: Finished difference Result 74 states and 82 transitions. [2020-10-19 17:55:48,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 17:55:48,927 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-19 17:55:48,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:55:48,939 INFO L225 Difference]: With dead ends: 74 [2020-10-19 17:55:48,939 INFO L226 Difference]: Without dead ends: 69 [2020-10-19 17:55:48,941 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 [2020-10-19 17:55:48,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-19 17:55:48,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 50. [2020-10-19 17:55:48,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-19 17:55:48,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2020-10-19 17:55:48,993 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 10 [2020-10-19 17:55:48,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:55:48,993 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2020-10-19 17:55:48,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 17:55:48,994 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2020-10-19 17:55:48,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-19 17:55:48,995 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:48,995 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:55:49,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-19 17:55:49,210 INFO L429 AbstractCegarLoop]: === Iteration 2 === [bubbleSortErr2REQUIRES_VIOLATION, bubbleSortErr3REQUIRES_VIOLATION, bubbleSortErr8REQUIRES_VIOLATION, bubbleSortErr9REQUIRES_VIOLATION, bubbleSortErr4REQUIRES_VIOLATION, bubbleSortErr5REQUIRES_VIOLATION, bubbleSortErr10REQUIRES_VIOLATION, bubbleSortErr11REQUIRES_VIOLATION, bubbleSortErr0REQUIRES_VIOLATION, bubbleSortErr1REQUIRES_VIOLATION, bubbleSortErr6REQUIRES_VIOLATION, bubbleSortErr7REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:49,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:49,212 INFO L82 PathProgramCache]: Analyzing trace with hash -435715573, now seen corresponding path program 1 times [2020-10-19 17:55:49,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:49,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1411361773] [2020-10-19 17:55:49,213 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 [2020-10-19 17:55:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:49,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 17:55:49,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:49,330 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 [2020-10-19 17:55:49,330 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:55:49,333 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:55:49,334 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:55:49,334 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 17:55:49,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:55:49,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:55:49,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:55:49,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1411361773] [2020-10-19 17:55:49,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:55:49,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-19 17:55:49,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064350842] [2020-10-19 17:55:49,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 17:55:49,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:55:49,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 17:55:49,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 17:55:49,356 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand 3 states. [2020-10-19 17:55:49,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:55:49,479 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2020-10-19 17:55:49,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 17:55:49,480 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-19 17:55:49,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:55:49,482 INFO L225 Difference]: With dead ends: 49 [2020-10-19 17:55:49,482 INFO L226 Difference]: Without dead ends: 49 [2020-10-19 17:55:49,483 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 [2020-10-19 17:55:49,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-19 17:55:49,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-10-19 17:55:49,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-19 17:55:49,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2020-10-19 17:55:49,490 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 10 [2020-10-19 17:55:49,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:55:49,491 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2020-10-19 17:55:49,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 17:55:49,491 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2020-10-19 17:55:49,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-19 17:55:49,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:49,492 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:55:49,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-19 17:55:49,705 INFO L429 AbstractCegarLoop]: === Iteration 3 === [bubbleSortErr2REQUIRES_VIOLATION, bubbleSortErr3REQUIRES_VIOLATION, bubbleSortErr8REQUIRES_VIOLATION, bubbleSortErr9REQUIRES_VIOLATION, bubbleSortErr4REQUIRES_VIOLATION, bubbleSortErr5REQUIRES_VIOLATION, bubbleSortErr10REQUIRES_VIOLATION, bubbleSortErr11REQUIRES_VIOLATION, bubbleSortErr0REQUIRES_VIOLATION, bubbleSortErr1REQUIRES_VIOLATION, bubbleSortErr6REQUIRES_VIOLATION, bubbleSortErr7REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:49,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:49,706 INFO L82 PathProgramCache]: Analyzing trace with hash -2089784932, now seen corresponding path program 1 times [2020-10-19 17:55:49,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:49,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [132188251] [2020-10-19 17:55:49,708 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 [2020-10-19 17:55:49,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:49,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 17:55:49,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:49,826 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 [2020-10-19 17:55:49,827 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:55:49,830 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:55:49,830 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:55:49,831 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 17:55:49,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:55:49,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:55:49,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:55:49,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [132188251] [2020-10-19 17:55:49,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:55:49,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-19 17:55:49,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290837500] [2020-10-19 17:55:49,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 17:55:49,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:55:49,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 17:55:49,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 17:55:49,874 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand 5 states. [2020-10-19 17:55:50,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:55:50,147 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2020-10-19 17:55:50,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 17:55:50,148 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-19 17:55:50,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:55:50,149 INFO L225 Difference]: With dead ends: 43 [2020-10-19 17:55:50,149 INFO L226 Difference]: Without dead ends: 43 [2020-10-19 17:55:50,150 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 [2020-10-19 17:55:50,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-19 17:55:50,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-10-19 17:55:50,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-19 17:55:50,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2020-10-19 17:55:50,156 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 14 [2020-10-19 17:55:50,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:55:50,157 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2020-10-19 17:55:50,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 17:55:50,157 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2020-10-19 17:55:50,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-19 17:55:50,158 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:50,158 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:55:50,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-19 17:55:50,372 INFO L429 AbstractCegarLoop]: === Iteration 4 === [bubbleSortErr2REQUIRES_VIOLATION, bubbleSortErr3REQUIRES_VIOLATION, bubbleSortErr8REQUIRES_VIOLATION, bubbleSortErr9REQUIRES_VIOLATION, bubbleSortErr4REQUIRES_VIOLATION, bubbleSortErr5REQUIRES_VIOLATION, bubbleSortErr10REQUIRES_VIOLATION, bubbleSortErr11REQUIRES_VIOLATION, bubbleSortErr0REQUIRES_VIOLATION, bubbleSortErr1REQUIRES_VIOLATION, bubbleSortErr6REQUIRES_VIOLATION, bubbleSortErr7REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:50,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:50,373 INFO L82 PathProgramCache]: Analyzing trace with hash -2089784931, now seen corresponding path program 1 times [2020-10-19 17:55:50,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:50,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1906892402] [2020-10-19 17:55:50,374 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 [2020-10-19 17:55:50,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:50,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-19 17:55:50,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:50,518 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 [2020-10-19 17:55:50,518 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:55:50,536 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:55:50,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1906892402] [2020-10-19 17:55:50,540 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:55:50,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1917125941] [2020-10-19 17:55:50,540 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 [2020-10-19 17:55:50,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:50,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 17:55:50,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:50,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:55:50,755 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:55:50,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:55:50,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:55:50,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-19 17:55:50,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967151220] [2020-10-19 17:55:50,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 17:55:50,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:55:50,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 17:55:50,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-19 17:55:50,787 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand 6 states. [2020-10-19 17:55:50,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:55:50,886 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2020-10-19 17:55:50,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 17:55:50,887 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-19 17:55:50,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:55:50,888 INFO L225 Difference]: With dead ends: 45 [2020-10-19 17:55:50,889 INFO L226 Difference]: Without dead ends: 45 [2020-10-19 17:55:50,889 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 [2020-10-19 17:55:50,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-19 17:55:50,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2020-10-19 17:55:50,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-19 17:55:50,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2020-10-19 17:55:50,894 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 14 [2020-10-19 17:55:50,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:55:50,895 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2020-10-19 17:55:50,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 17:55:50,895 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2020-10-19 17:55:50,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-19 17:55:50,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:50,896 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:55:51,309 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 [2020-10-19 17:55:51,310 INFO L429 AbstractCegarLoop]: === Iteration 5 === [bubbleSortErr2REQUIRES_VIOLATION, bubbleSortErr3REQUIRES_VIOLATION, bubbleSortErr8REQUIRES_VIOLATION, bubbleSortErr9REQUIRES_VIOLATION, bubbleSortErr4REQUIRES_VIOLATION, bubbleSortErr5REQUIRES_VIOLATION, bubbleSortErr10REQUIRES_VIOLATION, bubbleSortErr11REQUIRES_VIOLATION, bubbleSortErr0REQUIRES_VIOLATION, bubbleSortErr1REQUIRES_VIOLATION, bubbleSortErr6REQUIRES_VIOLATION, bubbleSortErr7REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:51,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:51,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1290110897, now seen corresponding path program 1 times [2020-10-19 17:55:51,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:51,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [987023877] [2020-10-19 17:55:51,312 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 [2020-10-19 17:55:51,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:51,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 17:55:51,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:51,456 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:55:51,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:55:51,498 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:55:51,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [987023877] [2020-10-19 17:55:51,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 17:55:51,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-10-19 17:55:51,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116634852] [2020-10-19 17:55:51,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-19 17:55:51,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:55:51,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-19 17:55:51,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-19 17:55:51,501 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 8 states. [2020-10-19 17:55:51,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:55:51,598 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2020-10-19 17:55:51,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 17:55:51,598 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-10-19 17:55:51,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:55:51,599 INFO L225 Difference]: With dead ends: 51 [2020-10-19 17:55:51,600 INFO L226 Difference]: Without dead ends: 51 [2020-10-19 17:55:51,600 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-19 17:55:51,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-19 17:55:51,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 47. [2020-10-19 17:55:51,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-19 17:55:51,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2020-10-19 17:55:51,605 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 14 [2020-10-19 17:55:51,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:55:51,606 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2020-10-19 17:55:51,606 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-19 17:55:51,606 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2020-10-19 17:55:51,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-19 17:55:51,607 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:51,607 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:55:51,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-19 17:55:51,820 INFO L429 AbstractCegarLoop]: === Iteration 6 === [bubbleSortErr2REQUIRES_VIOLATION, bubbleSortErr3REQUIRES_VIOLATION, bubbleSortErr8REQUIRES_VIOLATION, bubbleSortErr9REQUIRES_VIOLATION, bubbleSortErr4REQUIRES_VIOLATION, bubbleSortErr5REQUIRES_VIOLATION, bubbleSortErr10REQUIRES_VIOLATION, bubbleSortErr11REQUIRES_VIOLATION, bubbleSortErr0REQUIRES_VIOLATION, bubbleSortErr1REQUIRES_VIOLATION, bubbleSortErr6REQUIRES_VIOLATION, bubbleSortErr7REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:51,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:51,821 INFO L82 PathProgramCache]: Analyzing trace with hash -2099457523, now seen corresponding path program 1 times [2020-10-19 17:55:51,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:51,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341035131] [2020-10-19 17:55:51,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-10-19 17:55:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:51,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-19 17:55:51,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:51,936 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 [2020-10-19 17:55:51,937 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:55:51,955 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:55:51,956 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:55:51,956 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-19 17:55:52,070 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:55:52,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:55:52,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:55:52,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341035131] [2020-10-19 17:55:52,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 17:55:52,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2020-10-19 17:55:52,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896422430] [2020-10-19 17:55:52,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-19 17:55:52,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:55:52,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-19 17:55:52,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-19 17:55:52,520 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand 10 states. [2020-10-19 17:55:52,881 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-10-19 17:55:53,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:55:53,747 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2020-10-19 17:55:53,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-19 17:55:53,749 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2020-10-19 17:55:53,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:55:53,750 INFO L225 Difference]: With dead ends: 67 [2020-10-19 17:55:53,750 INFO L226 Difference]: Without dead ends: 67 [2020-10-19 17:55:53,750 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2020-10-19 17:55:53,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-19 17:55:53,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 59. [2020-10-19 17:55:53,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-19 17:55:53,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2020-10-19 17:55:53,758 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 14 [2020-10-19 17:55:53,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:55:53,758 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2020-10-19 17:55:53,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-19 17:55:53,758 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2020-10-19 17:55:53,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-19 17:55:53,759 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:53,759 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:55:53,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-19 17:55:53,963 INFO L429 AbstractCegarLoop]: === Iteration 7 === [bubbleSortErr2REQUIRES_VIOLATION, bubbleSortErr3REQUIRES_VIOLATION, bubbleSortErr8REQUIRES_VIOLATION, bubbleSortErr9REQUIRES_VIOLATION, bubbleSortErr4REQUIRES_VIOLATION, bubbleSortErr5REQUIRES_VIOLATION, bubbleSortErr10REQUIRES_VIOLATION, bubbleSortErr11REQUIRES_VIOLATION, bubbleSortErr0REQUIRES_VIOLATION, bubbleSortErr1REQUIRES_VIOLATION, bubbleSortErr6REQUIRES_VIOLATION, bubbleSortErr7REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:53,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:53,964 INFO L82 PathProgramCache]: Analyzing trace with hash 906374306, now seen corresponding path program 1 times [2020-10-19 17:55:53,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:53,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [975547770] [2020-10-19 17:55:53,965 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 [2020-10-19 17:55:54,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:54,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 17:55:54,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:54,084 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 17:55:54,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:55:54,164 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 17:55:54,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [975547770] [2020-10-19 17:55:54,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:55:54,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-10-19 17:55:54,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061309351] [2020-10-19 17:55:54,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-19 17:55:54,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:55:54,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-19 17:55:54,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-19 17:55:54,168 INFO L87 Difference]: Start difference. First operand 59 states and 66 transitions. Second operand 10 states. [2020-10-19 17:55:54,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:55:54,428 INFO L93 Difference]: Finished difference Result 70 states and 77 transitions. [2020-10-19 17:55:54,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-19 17:55:54,429 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2020-10-19 17:55:54,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:55:54,430 INFO L225 Difference]: With dead ends: 70 [2020-10-19 17:55:54,431 INFO L226 Difference]: Without dead ends: 70 [2020-10-19 17:55:54,431 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2020-10-19 17:55:54,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-19 17:55:54,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 67. [2020-10-19 17:55:54,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-19 17:55:54,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 75 transitions. [2020-10-19 17:55:54,439 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 75 transitions. Word has length 18 [2020-10-19 17:55:54,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:55:54,440 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 75 transitions. [2020-10-19 17:55:54,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-19 17:55:54,440 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 75 transitions. [2020-10-19 17:55:54,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-19 17:55:54,441 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:54,441 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:55:54,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-19 17:55:54,644 INFO L429 AbstractCegarLoop]: === Iteration 8 === [bubbleSortErr2REQUIRES_VIOLATION, bubbleSortErr3REQUIRES_VIOLATION, bubbleSortErr8REQUIRES_VIOLATION, bubbleSortErr9REQUIRES_VIOLATION, bubbleSortErr4REQUIRES_VIOLATION, bubbleSortErr5REQUIRES_VIOLATION, bubbleSortErr10REQUIRES_VIOLATION, bubbleSortErr11REQUIRES_VIOLATION, bubbleSortErr0REQUIRES_VIOLATION, bubbleSortErr1REQUIRES_VIOLATION, bubbleSortErr6REQUIRES_VIOLATION, bubbleSortErr7REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:54,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:54,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1164539744, now seen corresponding path program 1 times [2020-10-19 17:55:54,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:54,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [106175470] [2020-10-19 17:55:54,646 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 [2020-10-19 17:55:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:54,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-19 17:55:54,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:54,778 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 [2020-10-19 17:55:54,778 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:55:54,801 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:55:54,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [106175470] [2020-10-19 17:55:54,803 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:55:54,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [909390749] [2020-10-19 17:55:54,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:55:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:55,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-19 17:55:55,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:55,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:55:55,159 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:55:55,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:55:55,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 17:55:55,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2020-10-19 17:55:55,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486554692] [2020-10-19 17:55:55,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-19 17:55:55,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:55:55,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-19 17:55:55,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-10-19 17:55:55,448 INFO L87 Difference]: Start difference. First operand 67 states and 75 transitions. Second operand 16 states. [2020-10-19 17:55:56,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:55:56,176 INFO L93 Difference]: Finished difference Result 78 states and 86 transitions. [2020-10-19 17:55:56,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-19 17:55:56,177 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 18 [2020-10-19 17:55:56,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:55:56,180 INFO L225 Difference]: With dead ends: 78 [2020-10-19 17:55:56,180 INFO L226 Difference]: Without dead ends: 78 [2020-10-19 17:55:56,180 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2020-10-19 17:55:56,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-19 17:55:56,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 67. [2020-10-19 17:55:56,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-19 17:55:56,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 75 transitions. [2020-10-19 17:55:56,186 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 75 transitions. Word has length 18 [2020-10-19 17:55:56,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:55:56,186 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 75 transitions. [2020-10-19 17:55:56,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-19 17:55:56,187 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 75 transitions. [2020-10-19 17:55:56,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-19 17:55:56,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:56,188 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:55:56,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3,11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:55:56,598 INFO L429 AbstractCegarLoop]: === Iteration 9 === [bubbleSortErr2REQUIRES_VIOLATION, bubbleSortErr3REQUIRES_VIOLATION, bubbleSortErr8REQUIRES_VIOLATION, bubbleSortErr9REQUIRES_VIOLATION, bubbleSortErr4REQUIRES_VIOLATION, bubbleSortErr5REQUIRES_VIOLATION, bubbleSortErr10REQUIRES_VIOLATION, bubbleSortErr11REQUIRES_VIOLATION, bubbleSortErr0REQUIRES_VIOLATION, bubbleSortErr1REQUIRES_VIOLATION, bubbleSortErr6REQUIRES_VIOLATION, bubbleSortErr7REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:56,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:56,599 INFO L82 PathProgramCache]: Analyzing trace with hash 617606051, now seen corresponding path program 2 times [2020-10-19 17:55:56,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:56,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1552962257] [2020-10-19 17:55:56,600 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 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-10-19 17:55:56,682 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-19 17:55:56,682 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 17:55:56,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-19 17:55:56,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:56,710 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 [2020-10-19 17:55:56,711 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:55:56,729 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:55:56,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1552962257] [2020-10-19 17:55:56,730 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:55:56,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2042756664] [2020-10-19 17:55:56,731 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 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:55:56,905 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-19 17:55:56,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 17:55:56,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-19 17:55:56,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:56,920 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 [2020-10-19 17:55:56,920 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:55:56,934 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:55:56,935 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:55:56,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022976671] [2020-10-19 17:55:56,936 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 17:55:57,031 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-19 17:55:57,032 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 17:55:57,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-19 17:55:57,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:57,079 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 [2020-10-19 17:55:57,080 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:55:57,096 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:55:57,097 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:55:57,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:55:57,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-19 17:55:57,097 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-19 17:55:57,097 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 17:55:57,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 cvc4 --incremental --print-success --lang smt --rewrite-divk,12 mathsat -unsat_core_generation=3 [2020-10-19 17:55:57,718 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-19 17:55:57,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 05:55:57 BoogieIcfgContainer [2020-10-19 17:55:57,718 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 17:55:57,719 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 17:55:57,719 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 17:55:57,719 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 17:55:57,720 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 05:55:47" (3/4) ... [2020-10-19 17:55:57,723 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 17:55:57,724 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 17:55:57,725 INFO L168 Benchmark]: Toolchain (without parser) took 11642.69 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 286.8 MB). Free memory was 958.6 MB in the beginning and 1.3 GB in the end (delta: -315.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 17:55:57,725 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 17:55:57,726 INFO L168 Benchmark]: CACSL2BoogieTranslator took 696.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -169.0 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2020-10-19 17:55:57,727 INFO L168 Benchmark]: Boogie Preprocessor took 72.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-10-19 17:55:57,728 INFO L168 Benchmark]: RCFGBuilder took 801.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.6 MB). Peak memory consumption was 51.6 MB. Max. memory is 11.5 GB. [2020-10-19 17:55:57,729 INFO L168 Benchmark]: TraceAbstraction took 10057.03 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 138.9 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -210.0 MB). Peak memory consumption was 315.0 MB. Max. memory is 11.5 GB. [2020-10-19 17:55:57,729 INFO L168 Benchmark]: Witness Printer took 4.56 ms. Allocated memory is still 1.3 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 17:55:57,732 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 696.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -169.0 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 72.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 801.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.6 MB). Peak memory consumption was 51.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10057.03 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 138.9 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -210.0 MB). Peak memory consumption was 315.0 MB. Max. memory is 11.5 GB. * Witness Printer took 4.56 ms. Allocated memory is still 1.3 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 517]: 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: [L526] int array_size = __VERIFIER_nondet_int(); [L527] COND FALSE !(array_size < 1 || array_size >= 2147483647 / sizeof(int)) [L530] int* numbers = (int*) __builtin_alloca (array_size * sizeof(int)); [L532] int k = 0; [L532] COND TRUE k < array_size [L534] numbers[k] = __VERIFIER_nondet_int() [L532] k++ [L532] COND TRUE k < array_size [L534] numbers[k] = __VERIFIER_nondet_int() [L532] k++ [L532] COND FALSE !(k < array_size) [L537] CALL bubbleSort(numbers, array_size) [L514] int i, j, temp; [L515] i = (array_size - 1) [L515] COND TRUE i >= 0 [L516] j = 1 [L516] COND TRUE j <= i [L517] numbers[j-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 70 locations, 15 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 9.9s, OverallIterations: 9, TraceHistogramMax: 2, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 317 SDtfs, 310 SDslu, 879 SDs, 0 SdLazy, 463 SolverSat, 90 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 249 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 49 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 208 ConstructedInterpolants, 1 QuantifiedInterpolants, 14152 SizeOfPredicates, 29 NumberOfNonLiveVariables, 392 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 16 InterpolantComputations, 10 PerfectInterpolantSequences, 4/12 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...