./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext3-properties/dll_nondet_free_order-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_82975f6d-9c97-431e-bf6d-f31a7949ba4f/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_82975f6d-9c97-431e-bf6d-f31a7949ba4f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_82975f6d-9c97-431e-bf6d-f31a7949ba4f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_82975f6d-9c97-431e-bf6d-f31a7949ba4f/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/dll_nondet_free_order-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_82975f6d-9c97-431e-bf6d-f31a7949ba4f/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_82975f6d-9c97-431e-bf6d-f31a7949ba4f/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 760c75961baa7cc196b373809e9a87dd0bcf8eb7 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_82975f6d-9c97-431e-bf6d-f31a7949ba4f/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_82975f6d-9c97-431e-bf6d-f31a7949ba4f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_82975f6d-9c97-431e-bf6d-f31a7949ba4f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_82975f6d-9c97-431e-bf6d-f31a7949ba4f/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/dll_nondet_free_order-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_82975f6d-9c97-431e-bf6d-f31a7949ba4f/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_82975f6d-9c97-431e-bf6d-f31a7949ba4f/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 760c75961baa7cc196b373809e9a87dd0bcf8eb7 .................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: Sort FloatRoundingMode not declared --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:22:02,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:22:02,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:22:02,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:22:02,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:22:02,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:22:02,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:22:02,682 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:22:02,684 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:22:02,685 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:22:02,686 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:22:02,687 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:22:02,687 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:22:02,688 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:22:02,689 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:22:02,690 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:22:02,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:22:02,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:22:02,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:22:02,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:22:02,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:22:02,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:22:02,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:22:02,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:22:02,701 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:22:02,701 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:22:02,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:22:02,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:22:02,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:22:02,703 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:22:02,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:22:02,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:22:02,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:22:02,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:22:02,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:22:02,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:22:02,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:22:02,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:22:02,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:22:02,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:22:02,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:22:02,710 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_82975f6d-9c97-431e-bf6d-f31a7949ba4f/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2019-10-22 11:22:02,729 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:22:02,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:22:02,730 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:22:02,730 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:22:02,730 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:22:02,730 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:22:02,731 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:22:02,731 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:22:02,731 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:22:02,731 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:22:02,731 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:22:02,732 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:22:02,732 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 11:22:02,732 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 11:22:02,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:22:02,733 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:22:02,733 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:22:02,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:22:02,733 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:22:02,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:22:02,734 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 11:22:02,734 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 11:22:02,734 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 11:22:02,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:22:02,735 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:22:02,735 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:22:02,735 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:22:02,735 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:22:02,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:22:02,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:02,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:22:02,738 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:22:02,738 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:22:02,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:22:02,739 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:22:02,739 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_82975f6d-9c97-431e-bf6d-f31a7949ba4f/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 760c75961baa7cc196b373809e9a87dd0bcf8eb7 [2019-10-22 11:22:02,786 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:22:02,803 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:22:02,811 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:22:02,812 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:22:02,813 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:22:02,813 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_82975f6d-9c97-431e-bf6d-f31a7949ba4f/bin/utaipan/../../sv-benchmarks/c/list-ext3-properties/dll_nondet_free_order-2.i [2019-10-22 11:22:02,875 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_82975f6d-9c97-431e-bf6d-f31a7949ba4f/bin/utaipan/data/c0f63142c/031a9df61cb0411ebf953ecfd8e52d6e/FLAGc06fb2717 [2019-10-22 11:22:03,283 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:22:03,284 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_82975f6d-9c97-431e-bf6d-f31a7949ba4f/sv-benchmarks/c/list-ext3-properties/dll_nondet_free_order-2.i [2019-10-22 11:22:03,297 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_82975f6d-9c97-431e-bf6d-f31a7949ba4f/bin/utaipan/data/c0f63142c/031a9df61cb0411ebf953ecfd8e52d6e/FLAGc06fb2717 [2019-10-22 11:22:03,606 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_82975f6d-9c97-431e-bf6d-f31a7949ba4f/bin/utaipan/data/c0f63142c/031a9df61cb0411ebf953ecfd8e52d6e [2019-10-22 11:22:03,609 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:22:03,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:22:03,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:03,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:22:03,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:22:03,617 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:03" (1/1) ... [2019-10-22 11:22:03,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ebd08e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:03, skipping insertion in model container [2019-10-22 11:22:03,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:03" (1/1) ... [2019-10-22 11:22:03,629 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:22:03,680 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:22:04,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:04,148 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:22:04,220 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:04,272 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:22:04,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:04 WrapperNode [2019-10-22 11:22:04,273 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:04,274 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:04,274 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:22:04,275 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:22:04,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:04" (1/1) ... [2019-10-22 11:22:04,300 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:04" (1/1) ... [2019-10-22 11:22:04,329 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:04,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:22:04,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:22:04,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:22:04,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:04" (1/1) ... [2019-10-22 11:22:04,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:04" (1/1) ... [2019-10-22 11:22:04,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:04" (1/1) ... [2019-10-22 11:22:04,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:04" (1/1) ... [2019-10-22 11:22:04,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:04" (1/1) ... [2019-10-22 11:22:04,357 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:04" (1/1) ... [2019-10-22 11:22:04,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:04" (1/1) ... [2019-10-22 11:22:04,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:22:04,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:22:04,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:22:04,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:22:04,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_82975f6d-9c97-431e-bf6d-f31a7949ba4f/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 11:22:04,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 11:22:04,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 11:22:04,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 11:22:04,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:22:04,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:22:04,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:22:04,962 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:22:04,963 INFO L284 CfgBuilder]: Removed 13 assume(true) statements. [2019-10-22 11:22:04,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:04 BoogieIcfgContainer [2019-10-22 11:22:04,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:22:04,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:22:04,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:22:04,968 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:22:04,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:22:03" (1/3) ... [2019-10-22 11:22:04,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e9df89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:04, skipping insertion in model container [2019-10-22 11:22:04,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:04" (2/3) ... [2019-10-22 11:22:04,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e9df89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:04, skipping insertion in model container [2019-10-22 11:22:04,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:04" (3/3) ... [2019-10-22 11:22:04,972 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_nondet_free_order-2.i [2019-10-22 11:22:04,982 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:22:04,995 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 59 error locations. [2019-10-22 11:22:05,006 INFO L249 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2019-10-22 11:22:05,030 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:22:05,031 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 11:22:05,031 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:22:05,031 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:22:05,031 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:22:05,031 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:22:05,031 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:22:05,032 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:22:05,056 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states. [2019-10-22 11:22:05,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 11:22:05,065 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:05,066 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 11:22:05,068 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 11:22:05,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:05,076 INFO L82 PathProgramCache]: Analyzing trace with hash 925702, now seen corresponding path program 1 times [2019-10-22 11:22:05,085 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:05,086 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308034549] [2019-10-22 11:22:05,086 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:05,087 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:05,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:05,249 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 11:22:05,250 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308034549] [2019-10-22 11:22:05,251 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:05,251 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:22:05,251 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248887036] [2019-10-22 11:22:05,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:05,260 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:05,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:05,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:05,277 INFO L87 Difference]: Start difference. First operand 131 states. Second operand 3 states. [2019-10-22 11:22:05,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:05,450 INFO L93 Difference]: Finished difference Result 128 states and 135 transitions. [2019-10-22 11:22:05,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:05,452 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-10-22 11:22:05,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:05,466 INFO L225 Difference]: With dead ends: 128 [2019-10-22 11:22:05,466 INFO L226 Difference]: Without dead ends: 124 [2019-10-22 11:22:05,469 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 11:22:05,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-10-22 11:22:05,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2019-10-22 11:22:05,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-10-22 11:22:05,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 129 transitions. [2019-10-22 11:22:05,518 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 129 transitions. Word has length 4 [2019-10-22 11:22:05,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:05,518 INFO L462 AbstractCegarLoop]: Abstraction has 124 states and 129 transitions. [2019-10-22 11:22:05,518 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:05,518 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 129 transitions. [2019-10-22 11:22:05,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 11:22:05,519 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:05,519 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 11:22:05,522 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 11:22:05,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:05,523 INFO L82 PathProgramCache]: Analyzing trace with hash 925703, now seen corresponding path program 1 times [2019-10-22 11:22:05,523 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:05,523 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021426451] [2019-10-22 11:22:05,523 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:05,524 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:05,524 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:05,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:05,591 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 11:22:05,592 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021426451] [2019-10-22 11:22:05,592 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:05,592 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:22:05,592 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795056432] [2019-10-22 11:22:05,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:05,594 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:05,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:05,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:05,594 INFO L87 Difference]: Start difference. First operand 124 states and 129 transitions. Second operand 3 states. [2019-10-22 11:22:05,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:05,650 INFO L93 Difference]: Finished difference Result 121 states and 126 transitions. [2019-10-22 11:22:05,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:05,656 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-10-22 11:22:05,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:05,657 INFO L225 Difference]: With dead ends: 121 [2019-10-22 11:22:05,657 INFO L226 Difference]: Without dead ends: 121 [2019-10-22 11:22:05,658 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 11:22:05,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-10-22 11:22:05,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2019-10-22 11:22:05,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-10-22 11:22:05,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 126 transitions. [2019-10-22 11:22:05,669 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 126 transitions. Word has length 4 [2019-10-22 11:22:05,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:05,669 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 126 transitions. [2019-10-22 11:22:05,669 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:05,669 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 126 transitions. [2019-10-22 11:22:05,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:22:05,670 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:05,670 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:05,671 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 11:22:05,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:05,671 INFO L82 PathProgramCache]: Analyzing trace with hash 2097999444, now seen corresponding path program 1 times [2019-10-22 11:22:05,671 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:05,671 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210597774] [2019-10-22 11:22:05,671 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:05,672 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:05,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:05,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:05,732 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 11:22:05,732 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210597774] [2019-10-22 11:22:05,733 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:05,733 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:22:05,733 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11254647] [2019-10-22 11:22:05,733 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:05,733 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:05,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:05,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:05,734 INFO L87 Difference]: Start difference. First operand 121 states and 126 transitions. Second operand 3 states. [2019-10-22 11:22:05,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:05,751 INFO L93 Difference]: Finished difference Result 130 states and 135 transitions. [2019-10-22 11:22:05,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:05,756 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-10-22 11:22:05,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:05,757 INFO L225 Difference]: With dead ends: 130 [2019-10-22 11:22:05,757 INFO L226 Difference]: Without dead ends: 130 [2019-10-22 11:22:05,757 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 11:22:05,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-10-22 11:22:05,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 122. [2019-10-22 11:22:05,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-10-22 11:22:05,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 127 transitions. [2019-10-22 11:22:05,763 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 127 transitions. Word has length 9 [2019-10-22 11:22:05,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:05,768 INFO L462 AbstractCegarLoop]: Abstraction has 122 states and 127 transitions. [2019-10-22 11:22:05,768 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:05,768 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 127 transitions. [2019-10-22 11:22:05,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:22:05,768 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:05,769 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:05,769 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 11:22:05,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:05,770 INFO L82 PathProgramCache]: Analyzing trace with hash 2098000980, now seen corresponding path program 1 times [2019-10-22 11:22:05,770 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:05,770 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282808232] [2019-10-22 11:22:05,770 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:05,770 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:05,770 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:05,839 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 11:22:05,839 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282808232] [2019-10-22 11:22:05,840 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:05,840 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:22:05,840 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416318798] [2019-10-22 11:22:05,840 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:05,840 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:05,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:05,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:05,841 INFO L87 Difference]: Start difference. First operand 122 states and 127 transitions. Second operand 3 states. [2019-10-22 11:22:05,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:05,927 INFO L93 Difference]: Finished difference Result 121 states and 126 transitions. [2019-10-22 11:22:05,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:05,928 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-10-22 11:22:05,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:05,929 INFO L225 Difference]: With dead ends: 121 [2019-10-22 11:22:05,929 INFO L226 Difference]: Without dead ends: 121 [2019-10-22 11:22:05,930 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 11:22:05,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-10-22 11:22:05,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2019-10-22 11:22:05,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-10-22 11:22:05,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 126 transitions. [2019-10-22 11:22:05,936 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 126 transitions. Word has length 9 [2019-10-22 11:22:05,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:05,936 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 126 transitions. [2019-10-22 11:22:05,937 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:05,937 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 126 transitions. [2019-10-22 11:22:05,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:22:05,937 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:05,937 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:05,938 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 11:22:05,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:05,938 INFO L82 PathProgramCache]: Analyzing trace with hash 2098000981, now seen corresponding path program 1 times [2019-10-22 11:22:05,939 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:05,939 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574689429] [2019-10-22 11:22:05,939 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:05,939 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:05,939 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:05,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:06,019 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 11:22:06,020 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574689429] [2019-10-22 11:22:06,020 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:06,020 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:22:06,020 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518460736] [2019-10-22 11:22:06,021 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:06,021 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:06,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:06,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:06,021 INFO L87 Difference]: Start difference. First operand 121 states and 126 transitions. Second operand 3 states. [2019-10-22 11:22:06,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:06,051 INFO L93 Difference]: Finished difference Result 120 states and 125 transitions. [2019-10-22 11:22:06,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:06,051 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-10-22 11:22:06,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:06,052 INFO L225 Difference]: With dead ends: 120 [2019-10-22 11:22:06,053 INFO L226 Difference]: Without dead ends: 120 [2019-10-22 11:22:06,053 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 11:22:06,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-10-22 11:22:06,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2019-10-22 11:22:06,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-10-22 11:22:06,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 125 transitions. [2019-10-22 11:22:06,060 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 125 transitions. Word has length 9 [2019-10-22 11:22:06,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:06,061 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 125 transitions. [2019-10-22 11:22:06,061 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:06,061 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 125 transitions. [2019-10-22 11:22:06,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 11:22:06,061 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:06,062 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:06,063 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 11:22:06,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:06,063 INFO L82 PathProgramCache]: Analyzing trace with hash 613520946, now seen corresponding path program 1 times [2019-10-22 11:22:06,063 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:06,063 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811172292] [2019-10-22 11:22:06,064 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:06,064 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:06,064 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:06,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:06,125 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 11:22:06,125 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811172292] [2019-10-22 11:22:06,126 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:06,126 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:22:06,126 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095722464] [2019-10-22 11:22:06,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:22:06,126 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:06,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:22:06,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:06,127 INFO L87 Difference]: Start difference. First operand 120 states and 125 transitions. Second operand 5 states. [2019-10-22 11:22:06,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:06,281 INFO L93 Difference]: Finished difference Result 124 states and 129 transitions. [2019-10-22 11:22:06,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:22:06,282 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-10-22 11:22:06,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:06,282 INFO L225 Difference]: With dead ends: 124 [2019-10-22 11:22:06,283 INFO L226 Difference]: Without dead ends: 124 [2019-10-22 11:22:06,283 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:22:06,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-10-22 11:22:06,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 123. [2019-10-22 11:22:06,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-10-22 11:22:06,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 129 transitions. [2019-10-22 11:22:06,289 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 129 transitions. Word has length 10 [2019-10-22 11:22:06,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:06,289 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 129 transitions. [2019-10-22 11:22:06,289 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:22:06,290 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 129 transitions. [2019-10-22 11:22:06,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 11:22:06,290 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:06,290 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:06,291 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 11:22:06,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:06,291 INFO L82 PathProgramCache]: Analyzing trace with hash 613520947, now seen corresponding path program 1 times [2019-10-22 11:22:06,292 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:06,292 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090653196] [2019-10-22 11:22:06,292 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:06,292 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:06,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:06,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:06,351 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 11:22:06,351 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090653196] [2019-10-22 11:22:06,351 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:06,352 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:22:06,352 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479169915] [2019-10-22 11:22:06,352 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:22:06,353 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:06,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:22:06,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:06,353 INFO L87 Difference]: Start difference. First operand 123 states and 129 transitions. Second operand 4 states. [2019-10-22 11:22:06,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:06,421 INFO L93 Difference]: Finished difference Result 124 states and 129 transitions. [2019-10-22 11:22:06,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:22:06,422 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-10-22 11:22:06,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:06,423 INFO L225 Difference]: With dead ends: 124 [2019-10-22 11:22:06,423 INFO L226 Difference]: Without dead ends: 124 [2019-10-22 11:22:06,423 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 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 11:22:06,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-10-22 11:22:06,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 123. [2019-10-22 11:22:06,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-10-22 11:22:06,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 128 transitions. [2019-10-22 11:22:06,430 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 128 transitions. Word has length 10 [2019-10-22 11:22:06,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:06,430 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 128 transitions. [2019-10-22 11:22:06,430 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:22:06,430 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 128 transitions. [2019-10-22 11:22:06,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 11:22:06,431 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:06,431 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:06,432 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 11:22:06,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:06,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1197790234, now seen corresponding path program 1 times [2019-10-22 11:22:06,433 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:06,433 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700577607] [2019-10-22 11:22:06,433 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:06,433 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:06,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:06,518 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:06,519 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700577607] [2019-10-22 11:22:06,519 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:06,519 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:22:06,519 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190132745] [2019-10-22 11:22:06,520 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:22:06,520 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:06,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:22:06,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:06,521 INFO L87 Difference]: Start difference. First operand 123 states and 128 transitions. Second operand 4 states. [2019-10-22 11:22:06,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:06,585 INFO L93 Difference]: Finished difference Result 122 states and 127 transitions. [2019-10-22 11:22:06,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:22:06,586 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-10-22 11:22:06,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:06,587 INFO L225 Difference]: With dead ends: 122 [2019-10-22 11:22:06,587 INFO L226 Difference]: Without dead ends: 122 [2019-10-22 11:22:06,588 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 11:22:06,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-10-22 11:22:06,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2019-10-22 11:22:06,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-10-22 11:22:06,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 126 transitions. [2019-10-22 11:22:06,605 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 126 transitions. Word has length 14 [2019-10-22 11:22:06,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:06,605 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 126 transitions. [2019-10-22 11:22:06,605 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:22:06,606 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 126 transitions. [2019-10-22 11:22:06,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 11:22:06,606 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:06,606 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:06,607 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 11:22:06,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:06,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1197790235, now seen corresponding path program 1 times [2019-10-22 11:22:06,609 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:06,610 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147358346] [2019-10-22 11:22:06,610 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:06,610 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:06,610 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:06,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:06,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:06,682 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147358346] [2019-10-22 11:22:06,682 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:06,682 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:22:06,682 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164694016] [2019-10-22 11:22:06,683 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:22:06,683 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:06,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:22:06,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:06,683 INFO L87 Difference]: Start difference. First operand 121 states and 126 transitions. Second operand 4 states. [2019-10-22 11:22:06,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:06,799 INFO L93 Difference]: Finished difference Result 119 states and 124 transitions. [2019-10-22 11:22:06,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:22:06,800 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-10-22 11:22:06,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:06,801 INFO L225 Difference]: With dead ends: 119 [2019-10-22 11:22:06,801 INFO L226 Difference]: Without dead ends: 119 [2019-10-22 11:22:06,801 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 11:22:06,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-10-22 11:22:06,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 116. [2019-10-22 11:22:06,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-10-22 11:22:06,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 121 transitions. [2019-10-22 11:22:06,806 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 121 transitions. Word has length 14 [2019-10-22 11:22:06,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:06,806 INFO L462 AbstractCegarLoop]: Abstraction has 116 states and 121 transitions. [2019-10-22 11:22:06,806 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:22:06,806 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 121 transitions. [2019-10-22 11:22:06,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 11:22:06,807 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:06,807 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:06,808 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 11:22:06,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:06,808 INFO L82 PathProgramCache]: Analyzing trace with hash -780576785, now seen corresponding path program 1 times [2019-10-22 11:22:06,808 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:06,809 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403574290] [2019-10-22 11:22:06,809 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:06,809 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:06,809 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:06,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:06,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:06,885 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403574290] [2019-10-22 11:22:06,885 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:06,885 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:22:06,886 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028097474] [2019-10-22 11:22:06,886 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:22:06,886 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:06,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:22:06,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:22:06,887 INFO L87 Difference]: Start difference. First operand 116 states and 121 transitions. Second operand 6 states. [2019-10-22 11:22:07,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:07,095 INFO L93 Difference]: Finished difference Result 116 states and 121 transitions. [2019-10-22 11:22:07,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:22:07,096 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-10-22 11:22:07,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:07,096 INFO L225 Difference]: With dead ends: 116 [2019-10-22 11:22:07,097 INFO L226 Difference]: Without dead ends: 116 [2019-10-22 11:22:07,097 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:22:07,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-10-22 11:22:07,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 113. [2019-10-22 11:22:07,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-10-22 11:22:07,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 118 transitions. [2019-10-22 11:22:07,101 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 118 transitions. Word has length 17 [2019-10-22 11:22:07,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:07,101 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 118 transitions. [2019-10-22 11:22:07,101 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:22:07,102 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 118 transitions. [2019-10-22 11:22:07,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 11:22:07,102 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:07,102 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:07,103 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 11:22:07,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:07,104 INFO L82 PathProgramCache]: Analyzing trace with hash -780576784, now seen corresponding path program 1 times [2019-10-22 11:22:07,104 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:07,105 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587181011] [2019-10-22 11:22:07,105 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:07,105 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:07,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:07,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:07,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:07,138 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587181011] [2019-10-22 11:22:07,138 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553116416] [2019-10-22 11:22:07,138 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_82975f6d-9c97-431e-bf6d-f31a7949ba4f/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 11:22:07,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:07,192 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 11:22:07,198 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:07,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:07,225 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:07,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:07,250 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1551448041] [2019-10-22 11:22:07,259 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 18 [2019-10-22 11:22:07,321 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:22:07,322 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:22:07,651 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:22:07,651 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 11:22:07,662 INFO L168 Benchmark]: Toolchain (without parser) took 4051.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 939.2 MB in the beginning and 874.0 MB in the end (delta: 65.1 MB). Peak memory consumption was 233.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:07,662 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:07,663 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 939.2 MB in the beginning and 1.2 GB in the end (delta: -211.3 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:07,664 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:07,664 INFO L168 Benchmark]: Boogie Preprocessor took 31.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:07,665 INFO L168 Benchmark]: RCFGBuilder took 602.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 42.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:07,665 INFO L168 Benchmark]: TraceAbstraction took 2695.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 874.0 MB in the end (delta: 227.1 MB). Peak memory consumption was 227.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:07,668 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 661.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 939.2 MB in the beginning and 1.2 GB in the end (delta: -211.3 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 602.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 42.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2695.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 874.0 MB in the end (delta: 227.1 MB). Peak memory consumption was 227.1 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 11:22:09,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:22:09,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:22:09,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:22:09,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:22:09,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:22:09,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:22:09,886 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:22:09,887 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:22:09,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:22:09,892 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:22:09,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:22:09,900 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:22:09,901 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:22:09,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:22:09,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:22:09,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:22:09,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:22:09,910 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:22:09,914 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:22:09,916 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:22:09,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:22:09,922 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:22:09,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:22:09,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:22:09,928 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:22:09,928 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:22:09,929 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:22:09,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:22:09,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:22:09,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:22:09,930 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:22:09,931 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:22:09,938 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:22:09,939 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:22:09,939 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:22:09,940 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:22:09,940 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:22:09,940 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:22:09,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:22:09,941 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:22:09,942 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_82975f6d-9c97-431e-bf6d-f31a7949ba4f/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2019-10-22 11:22:09,955 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:22:09,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:22:09,956 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:22:09,956 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:22:09,956 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:22:09,957 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:22:09,957 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:22:09,957 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:22:09,957 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:22:09,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 11:22:09,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 11:22:09,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:22:09,958 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:22:09,958 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:22:09,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:22:09,959 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:22:09,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:22:09,959 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 11:22:09,959 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 11:22:09,959 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 11:22:09,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:22:09,960 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:22:09,960 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:22:09,960 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:22:09,960 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:22:09,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:22:09,961 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:22:09,961 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:22:09,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:22:09,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:09,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:22:09,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:22:09,962 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:22:09,962 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:22:09,962 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:22:09,962 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_82975f6d-9c97-431e-bf6d-f31a7949ba4f/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 760c75961baa7cc196b373809e9a87dd0bcf8eb7 [2019-10-22 11:22:09,993 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:22:10,005 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:22:10,008 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:22:10,009 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:22:10,010 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:22:10,010 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_82975f6d-9c97-431e-bf6d-f31a7949ba4f/bin/utaipan/../../sv-benchmarks/c/list-ext3-properties/dll_nondet_free_order-2.i [2019-10-22 11:22:10,070 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_82975f6d-9c97-431e-bf6d-f31a7949ba4f/bin/utaipan/data/919d53517/d75a5e9086024a8987daf9b96b1e4c72/FLAG9362ef937 [2019-10-22 11:22:10,551 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:22:10,552 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_82975f6d-9c97-431e-bf6d-f31a7949ba4f/sv-benchmarks/c/list-ext3-properties/dll_nondet_free_order-2.i [2019-10-22 11:22:10,563 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_82975f6d-9c97-431e-bf6d-f31a7949ba4f/bin/utaipan/data/919d53517/d75a5e9086024a8987daf9b96b1e4c72/FLAG9362ef937 [2019-10-22 11:22:10,846 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_82975f6d-9c97-431e-bf6d-f31a7949ba4f/bin/utaipan/data/919d53517/d75a5e9086024a8987daf9b96b1e4c72 [2019-10-22 11:22:10,849 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:22:10,851 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:22:10,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:10,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:22:10,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:22:10,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:10" (1/1) ... [2019-10-22 11:22:10,861 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c424fb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:10, skipping insertion in model container [2019-10-22 11:22:10,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:10" (1/1) ... [2019-10-22 11:22:10,869 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:22:10,912 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:22:11,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:11,311 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:22:11,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:11,407 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:22:11,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:11 WrapperNode [2019-10-22 11:22:11,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:11,409 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:11,409 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:22:11,409 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:22:11,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:11" (1/1) ... [2019-10-22 11:22:11,440 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:11" (1/1) ... [2019-10-22 11:22:11,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:11,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:22:11,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:22:11,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:22:11,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:11" (1/1) ... [2019-10-22 11:22:11,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:11" (1/1) ... [2019-10-22 11:22:11,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:11" (1/1) ... [2019-10-22 11:22:11,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:11" (1/1) ... [2019-10-22 11:22:11,497 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:11" (1/1) ... [2019-10-22 11:22:11,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:11" (1/1) ... [2019-10-22 11:22:11,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:11" (1/1) ... [2019-10-22 11:22:11,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:22:11,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:22:11,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:22:11,513 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:22:11,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_82975f6d-9c97-431e-bf6d-f31a7949ba4f/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 11:22:11,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 11:22:11,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 11:22:11,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 11:22:11,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:22:11,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:22:11,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:22:12,214 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:22:12,214 INFO L284 CfgBuilder]: Removed 13 assume(true) statements. [2019-10-22 11:22:12,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:12 BoogieIcfgContainer [2019-10-22 11:22:12,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:22:12,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:22:12,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:22:12,220 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:22:12,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:22:10" (1/3) ... [2019-10-22 11:22:12,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2772027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:12, skipping insertion in model container [2019-10-22 11:22:12,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:11" (2/3) ... [2019-10-22 11:22:12,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2772027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:12, skipping insertion in model container [2019-10-22 11:22:12,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:12" (3/3) ... [2019-10-22 11:22:12,228 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_nondet_free_order-2.i [2019-10-22 11:22:12,239 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:22:12,251 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 59 error locations. [2019-10-22 11:22:12,263 INFO L249 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2019-10-22 11:22:12,283 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:22:12,283 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 11:22:12,284 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:22:12,284 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:22:12,284 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:22:12,284 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:22:12,284 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:22:12,285 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:22:12,305 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states. [2019-10-22 11:22:12,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 11:22:12,313 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:12,314 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 11:22:12,317 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 11:22:12,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:12,323 INFO L82 PathProgramCache]: Analyzing trace with hash 925702, now seen corresponding path program 1 times [2019-10-22 11:22:12,334 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:12,335 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2111732712] [2019-10-22 11:22:12,335 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_82975f6d-9c97-431e-bf6d-f31a7949ba4f/bin/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:12,578 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:12,578 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Sort FloatRoundingMode not declared at de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:412) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.sort(WrapperScript.java:223) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.NonDeclaringTermTransferrer.transferSort(NonDeclaringTermTransferrer.java:111) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.DeclarableFunctionSymbol.defineOrDeclare(DeclarableFunctionSymbol.java:160) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:143) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:168) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.SmtFunctionsAndAxioms.transferSymbols(SmtFunctionsAndAxioms.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleTraceCheck.createExternalManagedScript(IpTcStrategyModuleTraceCheck.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCvc4.constructManagedScript(IpTcStrategyModuleCvc4.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 11:22:12,583 INFO L168 Benchmark]: Toolchain (without parser) took 1732.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -115.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:12,584 INFO L168 Benchmark]: CDTParser took 0.21 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 11:22:12,584 INFO L168 Benchmark]: CACSL2BoogieTranslator took 556.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -182.3 MB). Peak memory consumption was 29.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:12,585 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:12,586 INFO L168 Benchmark]: Boogie Preprocessor took 42.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:12,587 INFO L168 Benchmark]: RCFGBuilder took 702.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 36.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:12,587 INFO L168 Benchmark]: TraceAbstraction took 364.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:12,591 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 556.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -182.3 MB). Peak memory consumption was 29.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 61.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 702.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 36.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 364.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Sort FloatRoundingMode not declared de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Sort FloatRoundingMode not declared: de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:412) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...