./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/reverse_array_alloca_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/reverse_array_alloca_unsafe.i -s /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 016c9c68c49c3eaa925dd855e3c8f320ab9c50c9 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/reverse_array_alloca_unsafe.i -s /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 016c9c68c49c3eaa925dd855e3c8f320ab9c50c9 .................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: Sort FloatRoundingMode not declared --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:20:56,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:20:56,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:20:56,754 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:20:56,755 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:20:56,755 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:20:56,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:20:56,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:20:56,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:20:56,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:20:56,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:20:56,761 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:20:56,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:20:56,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:20:56,763 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:20:56,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:20:56,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:20:56,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:20:56,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:20:56,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:20:56,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:20:56,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:20:56,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:20:56,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:20:56,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:20:56,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:20:56,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:20:56,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:20:56,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:20:56,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:20:56,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:20:56,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:20:56,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:20:56,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:20:56,794 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:20:56,794 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:20:56,795 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:20:56,795 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:20:56,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:20:56,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:20:56,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:20:56,797 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2019-10-22 11:20:56,811 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:20:56,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:20:56,814 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:20:56,815 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:20:56,815 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:20:56,815 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:20:56,815 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:20:56,815 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:20:56,815 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:20:56,816 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:20:56,816 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:20:56,816 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:20:56,816 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 11:20:56,817 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 11:20:56,817 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:20:56,817 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:20:56,817 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:20:56,817 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:20:56,817 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:20:56,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:20:56,818 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 11:20:56,818 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 11:20:56,818 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 11:20:56,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:20:56,818 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:20:56,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:20:56,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:20:56,819 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:20:56,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:20:56,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:20:56,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:20:56,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:20:56,819 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:20:56,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:20:56,820 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:20:56,820 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan 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 -> Taipan 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 -> 016c9c68c49c3eaa925dd855e3c8f320ab9c50c9 [2019-10-22 11:20:56,849 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:20:56,860 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:20:56,863 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:20:56,867 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:20:56,868 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:20:56,868 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan/../../sv-benchmarks/c/array-memsafety/reverse_array_alloca_unsafe.i [2019-10-22 11:20:56,923 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan/data/32547fac7/c330385e3908415d9de135831bde05bd/FLAG7f5eebb8d [2019-10-22 11:20:57,360 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:20:57,361 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/sv-benchmarks/c/array-memsafety/reverse_array_alloca_unsafe.i [2019-10-22 11:20:57,372 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan/data/32547fac7/c330385e3908415d9de135831bde05bd/FLAG7f5eebb8d [2019-10-22 11:20:57,712 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan/data/32547fac7/c330385e3908415d9de135831bde05bd [2019-10-22 11:20:57,718 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:20:57,719 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:20:57,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:20:57,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:20:57,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:20:57,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2de4a8a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57, skipping insertion in model container [2019-10-22 11:20:57,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,733 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:20:57,769 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:20:58,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:20:58,122 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:20:58,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:20:58,200 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:20:58,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:58 WrapperNode [2019-10-22 11:20:58,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:20:58,201 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:20:58,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:20:58,202 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:20:58,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:58" (1/1) ... [2019-10-22 11:20:58,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:58" (1/1) ... [2019-10-22 11:20:58,242 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:20:58,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:20:58,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:20:58,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:20:58,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:58" (1/1) ... [2019-10-22 11:20:58,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:58" (1/1) ... [2019-10-22 11:20:58,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:58" (1/1) ... [2019-10-22 11:20:58,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:58" (1/1) ... [2019-10-22 11:20:58,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:58" (1/1) ... [2019-10-22 11:20:58,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:58" (1/1) ... [2019-10-22 11:20:58,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:58" (1/1) ... [2019-10-22 11:20:58,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:20:58,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:20:58,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:20:58,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:20:58,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan/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 [2019-10-22 11:20:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 11:20:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:20:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:20:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:20:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:20:58,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:20:58,698 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:20:58,699 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 11:20:58,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:20:58 BoogieIcfgContainer [2019-10-22 11:20:58,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:20:58,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:20:58,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:20:58,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:20:58,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:20:57" (1/3) ... [2019-10-22 11:20:58,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@173c3efc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:20:58, skipping insertion in model container [2019-10-22 11:20:58,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:58" (2/3) ... [2019-10-22 11:20:58,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@173c3efc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:20:58, skipping insertion in model container [2019-10-22 11:20:58,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:20:58" (3/3) ... [2019-10-22 11:20:58,707 INFO L109 eAbstractionObserver]: Analyzing ICFG reverse_array_alloca_unsafe.i [2019-10-22 11:20:58,717 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:20:58,724 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 23 error locations. [2019-10-22 11:20:58,735 INFO L249 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2019-10-22 11:20:58,753 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:20:58,754 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 11:20:58,754 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:20:58,754 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:20:58,754 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:20:58,754 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:20:58,754 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:20:58,754 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:20:58,768 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2019-10-22 11:20:58,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 11:20:58,776 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:58,776 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:20:58,778 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION]=== [2019-10-22 11:20:58,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:58,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1805029096, now seen corresponding path program 1 times [2019-10-22 11:20:58,792 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:58,792 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136035954] [2019-10-22 11:20:58,792 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:58,793 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:58,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:58,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:58,944 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136035954] [2019-10-22 11:20:58,945 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:20:58,945 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:20:58,945 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139308831] [2019-10-22 11:20:58,949 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:20:58,950 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:58,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:20:58,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:20:58,966 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 3 states. [2019-10-22 11:20:59,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:20:59,042 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2019-10-22 11:20:59,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:20:59,044 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-10-22 11:20:59,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:20:59,052 INFO L225 Difference]: With dead ends: 55 [2019-10-22 11:20:59,052 INFO L226 Difference]: Without dead ends: 53 [2019-10-22 11:20:59,054 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:20:59,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-10-22 11:20:59,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2019-10-22 11:20:59,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-10-22 11:20:59,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 59 transitions. [2019-10-22 11:20:59,085 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 59 transitions. Word has length 7 [2019-10-22 11:20:59,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:20:59,085 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 59 transitions. [2019-10-22 11:20:59,085 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:20:59,085 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 59 transitions. [2019-10-22 11:20:59,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 11:20:59,086 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:59,086 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:20:59,086 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION]=== [2019-10-22 11:20:59,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:59,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1805029097, now seen corresponding path program 1 times [2019-10-22 11:20:59,087 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:59,087 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767867563] [2019-10-22 11:20:59,087 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,087 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:59,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:59,161 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767867563] [2019-10-22 11:20:59,162 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:20:59,162 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:20:59,162 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632375471] [2019-10-22 11:20:59,163 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:20:59,164 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:59,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:20:59,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:20:59,164 INFO L87 Difference]: Start difference. First operand 53 states and 59 transitions. Second operand 3 states. [2019-10-22 11:20:59,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:20:59,195 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2019-10-22 11:20:59,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:20:59,197 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-10-22 11:20:59,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:20:59,198 INFO L225 Difference]: With dead ends: 54 [2019-10-22 11:20:59,198 INFO L226 Difference]: Without dead ends: 54 [2019-10-22 11:20:59,198 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:20:59,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-10-22 11:20:59,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2019-10-22 11:20:59,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-10-22 11:20:59,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2019-10-22 11:20:59,205 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 7 [2019-10-22 11:20:59,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:20:59,205 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2019-10-22 11:20:59,205 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:20:59,205 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2019-10-22 11:20:59,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 11:20:59,206 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:59,206 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:20:59,206 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION]=== [2019-10-22 11:20:59,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:59,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1805088679, now seen corresponding path program 1 times [2019-10-22 11:20:59,207 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:59,207 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518368163] [2019-10-22 11:20:59,207 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,207 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:59,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:59,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:59,313 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518368163] [2019-10-22 11:20:59,314 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:20:59,314 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:20:59,314 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546487493] [2019-10-22 11:20:59,314 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:20:59,314 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:59,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:20:59,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:20:59,315 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand 5 states. [2019-10-22 11:20:59,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:20:59,483 INFO L93 Difference]: Finished difference Result 58 states and 64 transitions. [2019-10-22 11:20:59,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:20:59,484 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-10-22 11:20:59,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:20:59,485 INFO L225 Difference]: With dead ends: 58 [2019-10-22 11:20:59,485 INFO L226 Difference]: Without dead ends: 58 [2019-10-22 11:20:59,486 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:20:59,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-10-22 11:20:59,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2019-10-22 11:20:59,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-10-22 11:20:59,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 62 transitions. [2019-10-22 11:20:59,494 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 62 transitions. Word has length 7 [2019-10-22 11:20:59,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:20:59,494 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 62 transitions. [2019-10-22 11:20:59,494 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:20:59,495 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 62 transitions. [2019-10-22 11:20:59,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 11:20:59,495 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:59,495 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:20:59,495 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION]=== [2019-10-22 11:20:59,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:59,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1579537130, now seen corresponding path program 1 times [2019-10-22 11:20:59,496 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:59,496 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064725732] [2019-10-22 11:20:59,496 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,496 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:59,497 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:59,605 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:59,605 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064725732] [2019-10-22 11:20:59,605 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357981924] [2019-10-22 11:20:59,605 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:20:59,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:59,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 11:20:59,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:20:59,713 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:59,714 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:20:59,745 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:59,746 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-22 11:20:59,746 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6] total 10 [2019-10-22 11:20:59,746 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448832702] [2019-10-22 11:20:59,746 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:20:59,747 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:59,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:20:59,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:20:59,747 INFO L87 Difference]: Start difference. First operand 56 states and 62 transitions. Second operand 7 states. [2019-10-22 11:20:59,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:20:59,829 INFO L93 Difference]: Finished difference Result 105 states and 114 transitions. [2019-10-22 11:20:59,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:20:59,830 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2019-10-22 11:20:59,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:20:59,831 INFO L225 Difference]: With dead ends: 105 [2019-10-22 11:20:59,831 INFO L226 Difference]: Without dead ends: 105 [2019-10-22 11:20:59,831 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:20:59,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-10-22 11:20:59,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 62. [2019-10-22 11:20:59,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-10-22 11:20:59,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2019-10-22 11:20:59,840 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 11 [2019-10-22 11:20:59,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:20:59,840 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2019-10-22 11:20:59,841 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:20:59,841 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2019-10-22 11:20:59,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 11:20:59,841 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:59,841 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:00,042 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:21:00,042 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION]=== [2019-10-22 11:21:00,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:00,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1226025170, now seen corresponding path program 1 times [2019-10-22 11:21:00,043 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:00,043 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751286468] [2019-10-22 11:21:00,043 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:00,043 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:00,043 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:00,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:00,161 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:00,161 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751286468] [2019-10-22 11:21:00,161 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822134263] [2019-10-22 11:21:00,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:21:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:00,213 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 14 conjunts are in the unsatisfiable core [2019-10-22 11:21:00,214 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:00,267 INFO L375 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 [2019-10-22 11:21:00,267 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 11:21:00,276 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 11:21:00,279 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 11:21:00,280 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:24 [2019-10-22 11:21:00,323 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:00,323 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:00,372 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:00,373 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1767448597] [2019-10-22 11:21:00,379 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 12 [2019-10-22 11:21:00,425 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:21:00,426 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:21:00,718 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:21:00,719 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: inappropriate decl info IMPLEMENTATION at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.getBoogieVar(NonrelationalStatementProcessor.java:348) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleHavocStatement(NonrelationalStatementProcessor.java:325) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:159) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:138) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:107) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:422) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:413) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:140) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.restoreOriginalStateVariables(PoormanCachedPostOperation.java:322) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:120) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.(CegarAbsIntRunner.java:158) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.getOrConstructRunner(IpTcStrategyModuleAbstractInterpretation.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.construct(IpTcStrategyModuleAbstractInterpretation.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 11:21:00,723 INFO L168 Benchmark]: Toolchain (without parser) took 3003.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 939.2 MB in the beginning and 917.4 MB in the end (delta: 21.7 MB). Peak memory consumption was 134.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:00,723 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:00,728 INFO L168 Benchmark]: CACSL2BoogieTranslator took 481.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -154.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:00,729 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:00,729 INFO L168 Benchmark]: Boogie Preprocessor took 33.64 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:00,730 INFO L168 Benchmark]: RCFGBuilder took 423.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:00,730 INFO L168 Benchmark]: TraceAbstraction took 2020.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 917.4 MB in the end (delta: 139.5 MB). Peak memory consumption was 139.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:00,733 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 481.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -154.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.64 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 423.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2020.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 917.4 MB in the end (delta: 139.5 MB). Peak memory consumption was 139.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inappropriate decl info IMPLEMENTATION de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inappropriate decl info IMPLEMENTATION: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:21:02,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:21:02,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:21:02,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:21:02,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:21:02,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:21:02,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:21:02,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:21:02,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:21:02,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:21:02,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:21:02,807 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:21:02,808 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:21:02,809 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:21:02,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:21:02,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:21:02,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:21:02,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:21:02,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:21:02,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:21:02,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:21:02,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:21:02,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:21:02,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:21:02,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:21:02,821 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:21:02,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:21:02,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:21:02,823 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:21:02,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:21:02,824 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:21:02,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:21:02,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:21:02,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:21:02,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:21:02,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:21:02,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:21:02,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:21:02,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:21:02,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:21:02,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:21:02,830 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2019-10-22 11:21:02,842 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:21:02,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:21:02,843 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:21:02,843 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:21:02,843 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:21:02,844 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:21:02,844 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:21:02,844 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:21:02,844 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:21:02,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 11:21:02,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 11:21:02,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:21:02,845 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:21:02,845 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:21:02,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:21:02,846 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:21:02,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:21:02,846 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 11:21:02,846 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 11:21:02,846 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 11:21:02,846 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:21:02,847 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:21:02,847 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:21:02,847 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:21:02,847 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:21:02,847 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:21:02,847 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:21:02,848 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:21:02,848 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:21:02,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:02,848 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:21:02,848 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:21:02,848 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:21:02,849 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:21:02,849 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:21:02,849 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan 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 -> Taipan 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 -> 016c9c68c49c3eaa925dd855e3c8f320ab9c50c9 [2019-10-22 11:21:02,877 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:21:02,888 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:21:02,891 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:21:02,892 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:21:02,892 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:21:02,893 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan/../../sv-benchmarks/c/array-memsafety/reverse_array_alloca_unsafe.i [2019-10-22 11:21:02,940 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan/data/85791fd32/17dea46ef09841649ac8cbc1c601bd98/FLAG85dad7ab3 [2019-10-22 11:21:03,417 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:21:03,422 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/sv-benchmarks/c/array-memsafety/reverse_array_alloca_unsafe.i [2019-10-22 11:21:03,434 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan/data/85791fd32/17dea46ef09841649ac8cbc1c601bd98/FLAG85dad7ab3 [2019-10-22 11:21:03,686 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan/data/85791fd32/17dea46ef09841649ac8cbc1c601bd98 [2019-10-22 11:21:03,688 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:21:03,689 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:21:03,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:03,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:21:03,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:21:03,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:03" (1/1) ... [2019-10-22 11:21:03,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e8020a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:03, skipping insertion in model container [2019-10-22 11:21:03,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:03" (1/1) ... [2019-10-22 11:21:03,703 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:21:03,741 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:21:04,040 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:04,054 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:21:04,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:04,286 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:21:04,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04 WrapperNode [2019-10-22 11:21:04,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:04,287 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:04,287 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:21:04,287 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:21:04,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:04,313 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:04,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:04,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:21:04,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:21:04,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:21:04,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:04,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:04,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:04,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:04,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:04,373 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:04,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... [2019-10-22 11:21:04,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:21:04,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:21:04,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:21:04,378 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:21:04,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan/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 [2019-10-22 11:21:04,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 11:21:04,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:21:04,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:21:04,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 11:21:04,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:21:04,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:21:04,934 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:21:04,935 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 11:21:04,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:04 BoogieIcfgContainer [2019-10-22 11:21:04,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:21:04,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:21:04,937 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:21:04,940 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:21:04,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:21:03" (1/3) ... [2019-10-22 11:21:04,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7660e56a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:04, skipping insertion in model container [2019-10-22 11:21:04,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:04" (2/3) ... [2019-10-22 11:21:04,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7660e56a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:04, skipping insertion in model container [2019-10-22 11:21:04,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:04" (3/3) ... [2019-10-22 11:21:04,944 INFO L109 eAbstractionObserver]: Analyzing ICFG reverse_array_alloca_unsafe.i [2019-10-22 11:21:04,953 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:21:04,960 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 23 error locations. [2019-10-22 11:21:04,970 INFO L249 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2019-10-22 11:21:04,987 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:21:04,987 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 11:21:04,987 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:21:04,987 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:21:04,987 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:21:04,988 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:21:04,988 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:21:04,988 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:21:05,000 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2019-10-22 11:21:05,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 11:21:05,007 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:05,008 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:05,010 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION]=== [2019-10-22 11:21:05,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:05,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1805029096, now seen corresponding path program 1 times [2019-10-22 11:21:05,025 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:05,025 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1008451147] [2019-10-22 11:21:05,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13320a9c-6a9a-4af1-9e1e-7f51227838f1/bin/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:05,283 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:05,283 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Sort FloatRoundingMode not declared at de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:412) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.sort(WrapperScript.java:223) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.NonDeclaringTermTransferrer.transferSort(NonDeclaringTermTransferrer.java:111) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.DeclarableFunctionSymbol.defineOrDeclare(DeclarableFunctionSymbol.java:160) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:143) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:168) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.SmtFunctionsAndAxioms.transferSymbols(SmtFunctionsAndAxioms.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleTraceCheck.createExternalManagedScript(IpTcStrategyModuleTraceCheck.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCvc4.constructManagedScript(IpTcStrategyModuleCvc4.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 11:21:05,288 INFO L168 Benchmark]: Toolchain (without parser) took 1597.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.8 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -155.1 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:05,288 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:05,289 INFO L168 Benchmark]: CACSL2BoogieTranslator took 596.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.8 MB). Free memory was 947.0 MB in the beginning and 1.2 GB in the end (delta: -213.5 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:05,290 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:05,290 INFO L168 Benchmark]: Boogie Preprocessor took 35.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 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. [2019-10-22 11:21:05,291 INFO L168 Benchmark]: RCFGBuilder took 558.14 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:05,292 INFO L168 Benchmark]: TraceAbstraction took 348.61 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: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:05,297 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 596.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.8 MB). Free memory was 947.0 MB in the beginning and 1.2 GB in the end (delta: -213.5 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 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 558.14 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 348.61 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: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Sort FloatRoundingMode not declared de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Sort FloatRoundingMode not declared: de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:412) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...