./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_ce491281-383a-4a5e-9b5a-5d013a9f07b9/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ce491281-383a-4a5e-9b5a-5d013a9f07b9/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ce491281-383a-4a5e-9b5a-5d013a9f07b9/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ce491281-383a-4a5e-9b5a-5d013a9f07b9/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ce491281-383a-4a5e-9b5a-5d013a9f07b9/bin/utaipan/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ce491281-383a-4a5e-9b5a-5d013a9f07b9/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3897398c1d4d9cb529688fb51aafff99760b97aa ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_ce491281-383a-4a5e-9b5a-5d013a9f07b9/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ce491281-383a-4a5e-9b5a-5d013a9f07b9/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ce491281-383a-4a5e-9b5a-5d013a9f07b9/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ce491281-383a-4a5e-9b5a-5d013a9f07b9/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ce491281-383a-4a5e-9b5a-5d013a9f07b9/bin/utaipan/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ce491281-383a-4a5e-9b5a-5d013a9f07b9/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3897398c1d4d9cb529688fb51aafff99760b97aa ........................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: only flexible array member at the end can have non-constant size --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:23:02,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:23:02,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:23:02,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:23:02,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:23:02,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:23:02,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:23:02,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:23:02,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:23:02,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:23:02,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:23:02,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:23:02,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:23:02,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:23:02,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:23:02,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:23:02,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:23:02,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:23:02,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:23:02,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:23:02,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:23:02,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:23:02,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:23:02,745 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:23:02,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:23:02,757 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:23:02,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:23:02,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:23:02,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:23:02,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:23:02,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:23:02,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:23:02,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:23:02,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:23:02,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:23:02,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:23:02,765 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:23:02,765 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:23:02,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:23:02,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:23:02,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:23:02,769 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ce491281-383a-4a5e-9b5a-5d013a9f07b9/bin/utaipan/config/svcomp-Reach-64bit-Taipan_Default.epf [2019-10-22 11:23:02,783 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:23:02,783 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:23:02,784 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:23:02,784 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:23:02,784 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:23:02,784 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:23:02,784 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:23:02,784 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:23:02,785 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:23:02,785 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:23:02,785 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:23:02,785 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:23:02,786 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:23:02,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:23:02,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:23:02,787 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:23:02,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:23:02,787 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:23:02,787 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:23:02,787 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:23:02,787 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:23:02,787 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:23:02,788 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:23:02,788 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:23:02,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:23:02,788 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:23:02,788 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:23:02,788 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:23:02,789 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:23:02,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:23:02,789 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:23:02,789 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:23:02,789 INFO L138 SettingsManager]: * To the following directory=dump/ [2019-10-22 11:23:02,789 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_ce491281-383a-4a5e-9b5a-5d013a9f07b9/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 ! call(__VERIFIER_error())) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3897398c1d4d9cb529688fb51aafff99760b97aa [2019-10-22 11:23:02,819 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:23:02,832 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:23:02,838 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:23:02,840 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:23:02,841 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:23:02,842 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ce491281-383a-4a5e-9b5a-5d013a9f07b9/bin/utaipan/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2019-10-22 11:23:02,915 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ce491281-383a-4a5e-9b5a-5d013a9f07b9/bin/utaipan/data/708e8c311/8d1be9e39f834c6ab34b5f822b83e91f/FLAGfd80be187 [2019-10-22 11:23:03,510 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:23:03,511 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ce491281-383a-4a5e-9b5a-5d013a9f07b9/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2019-10-22 11:23:03,547 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ce491281-383a-4a5e-9b5a-5d013a9f07b9/bin/utaipan/data/708e8c311/8d1be9e39f834c6ab34b5f822b83e91f/FLAGfd80be187 [2019-10-22 11:23:03,866 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ce491281-383a-4a5e-9b5a-5d013a9f07b9/bin/utaipan/data/708e8c311/8d1be9e39f834c6ab34b5f822b83e91f [2019-10-22 11:23:03,868 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:23:03,869 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:23:03,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:03,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:23:03,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:23:03,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:03" (1/1) ... [2019-10-22 11:23:03,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@176dbab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:03, skipping insertion in model container [2019-10-22 11:23:03,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:03" (1/1) ... [2019-10-22 11:23:03,881 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:23:03,977 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:23:04,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:04,956 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:23:05,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:05,272 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:23:05,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:05 WrapperNode [2019-10-22 11:23:05,273 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:05,273 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:05,274 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:23:05,274 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:23:05,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:05" (1/1) ... [2019-10-22 11:23:05,332 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:05" (1/1) ... [2019-10-22 11:23:05,424 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:05,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:23:05,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:23:05,424 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:23:05,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:05" (1/1) ... [2019-10-22 11:23:05,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:05" (1/1) ... [2019-10-22 11:23:05,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:05" (1/1) ... [2019-10-22 11:23:05,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:05" (1/1) ... [2019-10-22 11:23:05,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:05" (1/1) ... [2019-10-22 11:23:05,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:05" (1/1) ... [2019-10-22 11:23:05,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:05" (1/1) ... [2019-10-22 11:23:05,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:23:05,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:23:05,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:23:05,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:23:05,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce491281-383a-4a5e-9b5a-5d013a9f07b9/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 11:23:05,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-22 11:23:05,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-22 11:23:05,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-22 11:23:05,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 11:23:05,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:23:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 11:23:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:23:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-22 11:23:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 11:23:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:23:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-22 11:23:05,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:23:05,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-22 11:23:05,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:23:05,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:23:06,297 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-22 11:23:06,309 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-22 11:23:06,312 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-22 11:23:06,322 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-22 11:23:06,326 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-22 11:23:06,330 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-22 11:23:06,344 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-22 11:23:09,871 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##249: assume !false; [2019-10-22 11:23:09,871 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##248: assume false; [2019-10-22 11:23:09,871 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##229: assume !false; [2019-10-22 11:23:09,872 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##228: assume false; [2019-10-22 11:23:09,872 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##434: assume false; [2019-10-22 11:23:09,872 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##435: assume !false; [2019-10-22 11:23:09,872 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##188: assume !false; [2019-10-22 11:23:09,872 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##187: assume false; [2019-10-22 11:23:09,872 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##36: assume !false; [2019-10-22 11:23:09,873 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume false; [2019-10-22 11:23:09,873 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##135: assume !false; [2019-10-22 11:23:09,873 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##134: assume false; [2019-10-22 11:23:09,873 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##111: assume false; [2019-10-22 11:23:09,873 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##112: assume !false; [2019-10-22 11:23:09,875 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:23:09,875 INFO L284 CfgBuilder]: Removed 509 assume(true) statements. [2019-10-22 11:23:09,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:09 BoogieIcfgContainer [2019-10-22 11:23:09,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:23:09,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:23:09,878 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:23:09,881 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:23:09,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:23:03" (1/3) ... [2019-10-22 11:23:09,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f80793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:09, skipping insertion in model container [2019-10-22 11:23:09,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:05" (2/3) ... [2019-10-22 11:23:09,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f80793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:09, skipping insertion in model container [2019-10-22 11:23:09,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:09" (3/3) ... [2019-10-22 11:23:09,885 INFO L109 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2019-10-22 11:23:09,895 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:23:09,903 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-10-22 11:23:09,914 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-10-22 11:23:09,941 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:23:09,942 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:23:09,942 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:23:09,942 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:23:09,942 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:23:09,942 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:23:09,942 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:23:09,942 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:23:09,967 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states. [2019-10-22 11:23:09,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:23:09,973 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:09,974 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:09,976 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:09,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:09,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1571272536, now seen corresponding path program 1 times [2019-10-22 11:23:09,992 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:09,992 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289040190] [2019-10-22 11:23:09,993 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:09,993 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:09,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:10,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:10,416 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 11:23:10,416 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289040190] [2019-10-22 11:23:10,417 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:10,418 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:23:10,418 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012804606] [2019-10-22 11:23:10,422 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:10,424 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:10,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:10,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:10,442 INFO L87 Difference]: Start difference. First operand 551 states. Second operand 3 states. [2019-10-22 11:23:10,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:10,671 INFO L93 Difference]: Finished difference Result 1611 states and 2377 transitions. [2019-10-22 11:23:10,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:10,675 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-10-22 11:23:10,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:10,699 INFO L225 Difference]: With dead ends: 1611 [2019-10-22 11:23:10,700 INFO L226 Difference]: Without dead ends: 1051 [2019-10-22 11:23:10,705 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 11:23:10,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2019-10-22 11:23:10,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 1039. [2019-10-22 11:23:10,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1039 states. [2019-10-22 11:23:10,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1360 transitions. [2019-10-22 11:23:10,809 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1360 transitions. Word has length 9 [2019-10-22 11:23:10,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:10,809 INFO L462 AbstractCegarLoop]: Abstraction has 1039 states and 1360 transitions. [2019-10-22 11:23:10,810 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:10,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1360 transitions. [2019-10-22 11:23:10,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 11:23:10,811 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:10,811 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:10,811 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:10,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:10,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1464807938, now seen corresponding path program 1 times [2019-10-22 11:23:10,812 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:10,812 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812303114] [2019-10-22 11:23:10,813 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:10,813 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:10,814 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:10,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:10,969 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 11:23:10,969 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812303114] [2019-10-22 11:23:10,969 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:10,969 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:23:10,969 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878346893] [2019-10-22 11:23:10,971 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:10,971 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:10,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:10,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:10,972 INFO L87 Difference]: Start difference. First operand 1039 states and 1360 transitions. Second operand 3 states. [2019-10-22 11:23:11,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:11,036 INFO L93 Difference]: Finished difference Result 3099 states and 4061 transitions. [2019-10-22 11:23:11,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:11,037 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-10-22 11:23:11,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:11,044 INFO L225 Difference]: With dead ends: 3099 [2019-10-22 11:23:11,044 INFO L226 Difference]: Without dead ends: 2064 [2019-10-22 11:23:11,049 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 11:23:11,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2064 states. [2019-10-22 11:23:11,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2064 to 2044. [2019-10-22 11:23:11,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2044 states. [2019-10-22 11:23:11,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2044 states to 2044 states and 2686 transitions. [2019-10-22 11:23:11,117 INFO L78 Accepts]: Start accepts. Automaton has 2044 states and 2686 transitions. Word has length 10 [2019-10-22 11:23:11,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:11,117 INFO L462 AbstractCegarLoop]: Abstraction has 2044 states and 2686 transitions. [2019-10-22 11:23:11,118 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:11,118 INFO L276 IsEmpty]: Start isEmpty. Operand 2044 states and 2686 transitions. [2019-10-22 11:23:11,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 11:23:11,120 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:11,121 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:11,121 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:11,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:11,121 INFO L82 PathProgramCache]: Analyzing trace with hash 667383566, now seen corresponding path program 1 times [2019-10-22 11:23:11,121 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:11,122 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506204747] [2019-10-22 11:23:11,122 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:11,122 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:11,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:11,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:11,286 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 11:23:11,286 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506204747] [2019-10-22 11:23:11,287 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:11,287 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:23:11,287 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188301458] [2019-10-22 11:23:11,287 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:11,287 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:11,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:11,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:11,288 INFO L87 Difference]: Start difference. First operand 2044 states and 2686 transitions. Second operand 3 states. [2019-10-22 11:23:11,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:11,431 INFO L93 Difference]: Finished difference Result 5054 states and 6662 transitions. [2019-10-22 11:23:11,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:11,431 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2019-10-22 11:23:11,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:11,441 INFO L225 Difference]: With dead ends: 5054 [2019-10-22 11:23:11,441 INFO L226 Difference]: Without dead ends: 3017 [2019-10-22 11:23:11,445 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 11:23:11,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3017 states. [2019-10-22 11:23:11,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3017 to 3000. [2019-10-22 11:23:11,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3000 states. [2019-10-22 11:23:11,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3000 states to 3000 states and 3949 transitions. [2019-10-22 11:23:11,529 INFO L78 Accepts]: Start accepts. Automaton has 3000 states and 3949 transitions. Word has length 35 [2019-10-22 11:23:11,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:11,530 INFO L462 AbstractCegarLoop]: Abstraction has 3000 states and 3949 transitions. [2019-10-22 11:23:11,530 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:11,530 INFO L276 IsEmpty]: Start isEmpty. Operand 3000 states and 3949 transitions. [2019-10-22 11:23:11,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-22 11:23:11,534 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:11,534 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:11,534 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:11,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:11,535 INFO L82 PathProgramCache]: Analyzing trace with hash 2015656470, now seen corresponding path program 1 times [2019-10-22 11:23:11,535 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:11,535 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539148545] [2019-10-22 11:23:11,535 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:11,535 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:11,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:11,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:11,657 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 11:23:11,657 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539148545] [2019-10-22 11:23:11,658 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:11,658 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:23:11,658 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51533576] [2019-10-22 11:23:11,658 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:11,658 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:11,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:11,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:11,659 INFO L87 Difference]: Start difference. First operand 3000 states and 3949 transitions. Second operand 3 states. [2019-10-22 11:23:11,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:11,799 INFO L93 Difference]: Finished difference Result 7996 states and 10623 transitions. [2019-10-22 11:23:11,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:11,800 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2019-10-22 11:23:11,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:11,815 INFO L225 Difference]: With dead ends: 7996 [2019-10-22 11:23:11,815 INFO L226 Difference]: Without dead ends: 5001 [2019-10-22 11:23:11,820 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 11:23:11,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5001 states. [2019-10-22 11:23:11,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5001 to 4978. [2019-10-22 11:23:11,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4978 states. [2019-10-22 11:23:11,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4978 states to 4978 states and 6640 transitions. [2019-10-22 11:23:11,980 INFO L78 Accepts]: Start accepts. Automaton has 4978 states and 6640 transitions. Word has length 42 [2019-10-22 11:23:11,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:11,980 INFO L462 AbstractCegarLoop]: Abstraction has 4978 states and 6640 transitions. [2019-10-22 11:23:11,980 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:11,980 INFO L276 IsEmpty]: Start isEmpty. Operand 4978 states and 6640 transitions. [2019-10-22 11:23:11,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-22 11:23:11,986 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:11,986 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:11,987 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:11,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:11,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1752287038, now seen corresponding path program 1 times [2019-10-22 11:23:11,987 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:11,987 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762532329] [2019-10-22 11:23:11,987 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:11,987 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:11,988 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:12,151 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:12,152 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762532329] [2019-10-22 11:23:12,153 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:12,153 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:23:12,153 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027839398] [2019-10-22 11:23:12,154 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:23:12,154 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:12,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:23:12,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:23:12,155 INFO L87 Difference]: Start difference. First operand 4978 states and 6640 transitions. Second operand 4 states. [2019-10-22 11:23:13,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:13,471 INFO L93 Difference]: Finished difference Result 13511 states and 18040 transitions. [2019-10-22 11:23:13,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:23:13,473 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2019-10-22 11:23:13,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:13,505 INFO L225 Difference]: With dead ends: 13511 [2019-10-22 11:23:13,505 INFO L226 Difference]: Without dead ends: 8540 [2019-10-22 11:23:13,513 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:23:13,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8540 states. [2019-10-22 11:23:13,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8540 to 8178. [2019-10-22 11:23:13,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8178 states. [2019-10-22 11:23:13,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8178 states to 8178 states and 11017 transitions. [2019-10-22 11:23:13,800 INFO L78 Accepts]: Start accepts. Automaton has 8178 states and 11017 transitions. Word has length 53 [2019-10-22 11:23:13,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:13,801 INFO L462 AbstractCegarLoop]: Abstraction has 8178 states and 11017 transitions. [2019-10-22 11:23:13,801 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:23:13,801 INFO L276 IsEmpty]: Start isEmpty. Operand 8178 states and 11017 transitions. [2019-10-22 11:23:13,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-22 11:23:13,805 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:13,805 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:13,806 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:13,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:13,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1513320960, now seen corresponding path program 1 times [2019-10-22 11:23:13,806 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:13,806 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259966633] [2019-10-22 11:23:13,806 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:13,807 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:13,807 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:13,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:13,944 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:13,945 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259966633] [2019-10-22 11:23:13,945 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:13,945 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:23:13,945 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134194890] [2019-10-22 11:23:13,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:23:13,946 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:13,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:23:13,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:23:13,947 INFO L87 Difference]: Start difference. First operand 8178 states and 11017 transitions. Second operand 4 states. [2019-10-22 11:23:14,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:14,530 INFO L93 Difference]: Finished difference Result 16392 states and 22081 transitions. [2019-10-22 11:23:14,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:23:14,530 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2019-10-22 11:23:14,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:14,567 INFO L225 Difference]: With dead ends: 16392 [2019-10-22 11:23:14,573 INFO L226 Difference]: Without dead ends: 8201 [2019-10-22 11:23:14,584 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:23:14,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8201 states. [2019-10-22 11:23:15,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8201 to 8145. [2019-10-22 11:23:15,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8145 states. [2019-10-22 11:23:15,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8145 states to 8145 states and 10976 transitions. [2019-10-22 11:23:15,084 INFO L78 Accepts]: Start accepts. Automaton has 8145 states and 10976 transitions. Word has length 53 [2019-10-22 11:23:15,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:15,084 INFO L462 AbstractCegarLoop]: Abstraction has 8145 states and 10976 transitions. [2019-10-22 11:23:15,084 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:23:15,084 INFO L276 IsEmpty]: Start isEmpty. Operand 8145 states and 10976 transitions. [2019-10-22 11:23:15,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-10-22 11:23:15,086 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:15,087 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:15,087 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:15,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:15,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1446904748, now seen corresponding path program 1 times [2019-10-22 11:23:15,088 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:15,088 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229767614] [2019-10-22 11:23:15,088 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:15,088 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:15,088 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:15,271 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:15,271 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229767614] [2019-10-22 11:23:15,271 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:15,271 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:23:15,272 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304943289] [2019-10-22 11:23:15,272 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:23:15,272 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:15,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:23:15,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:23:15,273 INFO L87 Difference]: Start difference. First operand 8145 states and 10976 transitions. Second operand 5 states. [2019-10-22 11:23:15,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:15,884 INFO L93 Difference]: Finished difference Result 14753 states and 19835 transitions. [2019-10-22 11:23:15,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:23:15,885 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 63 [2019-10-22 11:23:15,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:15,904 INFO L225 Difference]: With dead ends: 14753 [2019-10-22 11:23:15,904 INFO L226 Difference]: Without dead ends: 6601 [2019-10-22 11:23:15,914 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:23:15,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6601 states. [2019-10-22 11:23:16,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6601 to 6464. [2019-10-22 11:23:16,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6464 states. [2019-10-22 11:23:16,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6464 states to 6464 states and 8684 transitions. [2019-10-22 11:23:16,101 INFO L78 Accepts]: Start accepts. Automaton has 6464 states and 8684 transitions. Word has length 63 [2019-10-22 11:23:16,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:16,102 INFO L462 AbstractCegarLoop]: Abstraction has 6464 states and 8684 transitions. [2019-10-22 11:23:16,102 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:23:16,102 INFO L276 IsEmpty]: Start isEmpty. Operand 6464 states and 8684 transitions. [2019-10-22 11:23:16,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-10-22 11:23:16,103 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:16,104 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:16,104 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:16,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:16,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1549402042, now seen corresponding path program 1 times [2019-10-22 11:23:16,104 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:16,105 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508662708] [2019-10-22 11:23:16,105 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:16,105 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:16,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:16,218 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-22 11:23:16,218 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508662708] [2019-10-22 11:23:16,218 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:16,218 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:23:16,218 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139008073] [2019-10-22 11:23:16,219 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:23:16,219 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:16,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:23:16,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:23:16,220 INFO L87 Difference]: Start difference. First operand 6464 states and 8684 transitions. Second operand 4 states. [2019-10-22 11:23:17,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:17,494 INFO L93 Difference]: Finished difference Result 13253 states and 17708 transitions. [2019-10-22 11:23:17,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:23:17,495 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2019-10-22 11:23:17,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:17,508 INFO L225 Difference]: With dead ends: 13253 [2019-10-22 11:23:17,508 INFO L226 Difference]: Without dead ends: 6796 [2019-10-22 11:23:17,517 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:23:17,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6796 states. [2019-10-22 11:23:17,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6796 to 6464. [2019-10-22 11:23:17,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6464 states. [2019-10-22 11:23:17,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6464 states to 6464 states and 8680 transitions. [2019-10-22 11:23:17,687 INFO L78 Accepts]: Start accepts. Automaton has 6464 states and 8680 transitions. Word has length 63 [2019-10-22 11:23:17,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:17,689 INFO L462 AbstractCegarLoop]: Abstraction has 6464 states and 8680 transitions. [2019-10-22 11:23:17,689 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:23:17,689 INFO L276 IsEmpty]: Start isEmpty. Operand 6464 states and 8680 transitions. [2019-10-22 11:23:17,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-10-22 11:23:17,691 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:17,691 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:17,692 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:17,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:17,696 INFO L82 PathProgramCache]: Analyzing trace with hash 528333688, now seen corresponding path program 1 times [2019-10-22 11:23:17,696 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:17,696 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355039753] [2019-10-22 11:23:17,697 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:17,697 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:17,697 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:17,815 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:17,815 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355039753] [2019-10-22 11:23:17,815 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:17,815 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:23:17,815 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136870185] [2019-10-22 11:23:17,816 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:23:17,816 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:17,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:23:17,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:23:17,817 INFO L87 Difference]: Start difference. First operand 6464 states and 8680 transitions. Second operand 5 states. [2019-10-22 11:23:18,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:18,588 INFO L93 Difference]: Finished difference Result 13003 states and 17442 transitions. [2019-10-22 11:23:18,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:23:18,589 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 63 [2019-10-22 11:23:18,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:18,600 INFO L225 Difference]: With dead ends: 13003 [2019-10-22 11:23:18,600 INFO L226 Difference]: Without dead ends: 6531 [2019-10-22 11:23:18,606 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:23:18,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6531 states. [2019-10-22 11:23:18,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6531 to 6473. [2019-10-22 11:23:18,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6473 states. [2019-10-22 11:23:18,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6473 states to 6473 states and 8686 transitions. [2019-10-22 11:23:18,757 INFO L78 Accepts]: Start accepts. Automaton has 6473 states and 8686 transitions. Word has length 63 [2019-10-22 11:23:18,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:18,758 INFO L462 AbstractCegarLoop]: Abstraction has 6473 states and 8686 transitions. [2019-10-22 11:23:18,758 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:23:18,758 INFO L276 IsEmpty]: Start isEmpty. Operand 6473 states and 8686 transitions. [2019-10-22 11:23:18,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-22 11:23:18,759 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:18,759 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:18,760 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:18,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:18,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1501171981, now seen corresponding path program 1 times [2019-10-22 11:23:18,760 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:18,760 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420643592] [2019-10-22 11:23:18,760 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:18,761 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:18,761 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:18,872 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:18,872 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420643592] [2019-10-22 11:23:18,872 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:18,872 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:23:18,873 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925622982] [2019-10-22 11:23:18,873 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:23:18,873 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:18,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:23:18,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:23:18,874 INFO L87 Difference]: Start difference. First operand 6473 states and 8686 transitions. Second operand 5 states. [2019-10-22 11:23:19,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:19,520 INFO L93 Difference]: Finished difference Result 11689 states and 15608 transitions. [2019-10-22 11:23:19,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:23:19,520 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2019-10-22 11:23:19,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:19,530 INFO L225 Difference]: With dead ends: 11689 [2019-10-22 11:23:19,530 INFO L226 Difference]: Without dead ends: 5208 [2019-10-22 11:23:19,537 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:23:19,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5208 states. [2019-10-22 11:23:19,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5208 to 5134. [2019-10-22 11:23:19,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5134 states. [2019-10-22 11:23:19,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5134 states to 5134 states and 6833 transitions. [2019-10-22 11:23:19,651 INFO L78 Accepts]: Start accepts. Automaton has 5134 states and 6833 transitions. Word has length 65 [2019-10-22 11:23:19,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:19,651 INFO L462 AbstractCegarLoop]: Abstraction has 5134 states and 6833 transitions. [2019-10-22 11:23:19,651 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:23:19,651 INFO L276 IsEmpty]: Start isEmpty. Operand 5134 states and 6833 transitions. [2019-10-22 11:23:19,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-22 11:23:19,653 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:19,653 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:19,653 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:19,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:19,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1570880371, now seen corresponding path program 1 times [2019-10-22 11:23:19,654 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:19,654 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791677698] [2019-10-22 11:23:19,654 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:19,654 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:19,654 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:19,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:19,789 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:19,789 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791677698] [2019-10-22 11:23:19,789 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851193513] [2019-10-22 11:23:19,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce491281-383a-4a5e-9b5a-5d013a9f07b9/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 11:23:20,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:20,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 1414 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-22 11:23:20,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:20,324 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:20,326 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:20,357 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:20,358 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [667842228] [2019-10-22 11:23:20,363 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 66 [2019-10-22 11:23:20,420 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:23:20,420 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:23:21,161 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:23:21,162 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 11:23:21,167 INFO L168 Benchmark]: Toolchain (without parser) took 17297.36 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 525.3 MB). Free memory was 935.1 MB in the beginning and 796.6 MB in the end (delta: 138.5 MB). Peak memory consumption was 663.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:21,167 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:23:21,168 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1402.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 935.1 MB in the beginning and 1.0 GB in the end (delta: -102.5 MB). Peak memory consumption was 56.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:21,168 INFO L168 Benchmark]: Boogie Procedure Inliner took 150.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:21,169 INFO L168 Benchmark]: Boogie Preprocessor took 160.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 995.1 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:21,170 INFO L168 Benchmark]: RCFGBuilder took 4291.43 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 182.5 MB). Free memory was 995.1 MB in the beginning and 1.3 GB in the end (delta: -261.3 MB). Peak memory consumption was 323.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:21,170 INFO L168 Benchmark]: TraceAbstraction took 11287.67 ms. Allocated memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: 198.7 MB). Free memory was 1.3 GB in the beginning and 796.6 MB in the end (delta: 459.8 MB). Peak memory consumption was 658.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:21,173 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1402.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 935.1 MB in the beginning and 1.0 GB in the end (delta: -102.5 MB). Peak memory consumption was 56.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 150.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 160.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 995.1 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 4291.43 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 182.5 MB). Free memory was 995.1 MB in the beginning and 1.3 GB in the end (delta: -261.3 MB). Peak memory consumption was 323.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 11287.67 ms. Allocated memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: 198.7 MB). Free memory was 1.3 GB in the beginning and 796.6 MB in the end (delta: 459.8 MB). Peak memory consumption was 658.5 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 11:23:23,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:23:23,573 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:23:23,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:23:23,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:23:23,583 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:23:23,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:23:23,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:23:23,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:23:23,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:23:23,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:23:23,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:23:23,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:23:23,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:23:23,591 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:23:23,592 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:23:23,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:23:23,593 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:23:23,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:23:23,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:23:23,598 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:23:23,599 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:23:23,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:23:23,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:23:23,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:23:23,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:23:23,603 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:23:23,604 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:23:23,604 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:23:23,605 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:23:23,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:23:23,606 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:23:23,606 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:23:23,607 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:23:23,608 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:23:23,608 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:23:23,609 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:23:23,609 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:23:23,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:23:23,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:23:23,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:23:23,615 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ce491281-383a-4a5e-9b5a-5d013a9f07b9/bin/utaipan/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2019-10-22 11:23:23,628 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:23:23,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:23:23,633 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:23:23,634 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:23:23,634 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:23:23,634 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:23:23,634 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:23:23,634 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:23:23,634 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:23:23,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:23:23,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:23:23,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:23:23,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:23:23,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:23:23,636 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:23:23,636 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:23:23,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:23:23,636 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:23:23,636 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:23:23,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:23:23,637 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:23:23,637 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:23:23,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:23:23,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:23:23,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:23:23,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:23:23,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:23:23,639 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:23:23,639 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:23:23,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:23:23,640 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:23:23,640 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_ce491281-383a-4a5e-9b5a-5d013a9f07b9/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 ! call(__VERIFIER_error())) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3897398c1d4d9cb529688fb51aafff99760b97aa [2019-10-22 11:23:23,677 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:23:23,693 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:23:23,696 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:23:23,698 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:23:23,698 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:23:23,699 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ce491281-383a-4a5e-9b5a-5d013a9f07b9/bin/utaipan/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2019-10-22 11:23:23,751 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ce491281-383a-4a5e-9b5a-5d013a9f07b9/bin/utaipan/data/26dc2a777/0f51ced199ed4d60a98c14d328d43586/FLAG3589f7c49 [2019-10-22 11:23:24,361 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:23:24,365 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ce491281-383a-4a5e-9b5a-5d013a9f07b9/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2019-10-22 11:23:24,400 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ce491281-383a-4a5e-9b5a-5d013a9f07b9/bin/utaipan/data/26dc2a777/0f51ced199ed4d60a98c14d328d43586/FLAG3589f7c49 [2019-10-22 11:23:24,721 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ce491281-383a-4a5e-9b5a-5d013a9f07b9/bin/utaipan/data/26dc2a777/0f51ced199ed4d60a98c14d328d43586 [2019-10-22 11:23:24,723 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:23:24,724 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:23:24,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:24,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:23:24,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:23:24,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:24" (1/1) ... [2019-10-22 11:23:24,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5da37244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:24, skipping insertion in model container [2019-10-22 11:23:24,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:24" (1/1) ... [2019-10-22 11:23:24,744 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:23:24,840 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:23:25,604 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.AssertionError: only flexible array member at the end can have non-constant size at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.computeMemberOffset(TypeSizeAndOffsetComputer.java:583) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.constructSizeTValueAndOffsets_StructAndUnion(TypeSizeAndOffsetComputer.java:304) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.computeSize(TypeSizeAndOffsetComputer.java:203) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.constructOffsetForField(TypeSizeAndOffsetComputer.java:133) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.constructOffsetForField(TypeSizeAndOffsetComputer.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.StructHandler.handleFieldReference(StructHandler.java:144) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:880) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:172) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1269) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:667) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1213) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:906) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:906) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:906) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1284) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2176) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:187) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:114) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:125) 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 11:23:25,615 INFO L168 Benchmark]: Toolchain (without parser) took 889.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -158.9 MB). Peak memory consumption was 44.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:25,616 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:23:25,617 INFO L168 Benchmark]: CACSL2BoogieTranslator took 887.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -158.9 MB). Peak memory consumption was 44.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:25,619 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 887.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -158.9 MB). Peak memory consumption was 44.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: AssertionError: only flexible array member at the end can have non-constant size de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: AssertionError: only flexible array member at the end can have non-constant size: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.computeMemberOffset(TypeSizeAndOffsetComputer.java:583) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...