./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/heap-manipulation/merge_sort-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_9ef65ef4-ad36-4da3-9a12-fc1c93038081/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9ef65ef4-ad36-4da3-9a12-fc1c93038081/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9ef65ef4-ad36-4da3-9a12-fc1c93038081/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9ef65ef4-ad36-4da3-9a12-fc1c93038081/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_9ef65ef4-ad36-4da3-9a12-fc1c93038081/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9ef65ef4-ad36-4da3-9a12-fc1c93038081/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 e6399ca05df7547b7620299987a8a06e9e2c006b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_9ef65ef4-ad36-4da3-9a12-fc1c93038081/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9ef65ef4-ad36-4da3-9a12-fc1c93038081/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9ef65ef4-ad36-4da3-9a12-fc1c93038081/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9ef65ef4-ad36-4da3-9a12-fc1c93038081/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_9ef65ef4-ad36-4da3-9a12-fc1c93038081/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9ef65ef4-ad36-4da3-9a12-fc1c93038081/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 e6399ca05df7547b7620299987a8a06e9e2c006b ....................................................................................................................................................................................................................................................... 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 11:22:57,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:22:57,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:22:57,685 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:22:57,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:22:57,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:22:57,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:22:57,688 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:22:57,689 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:22:57,689 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:22:57,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:22:57,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:22:57,693 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:22:57,694 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:22:57,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:22:57,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:22:57,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:22:57,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:22:57,708 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:22:57,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:22:57,710 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:22:57,711 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:22:57,712 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:22:57,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:22:57,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:22:57,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:22:57,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:22:57,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:22:57,720 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:22:57,721 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:22:57,721 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:22:57,722 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:22:57,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:22:57,726 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:22:57,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:22:57,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:22:57,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:22:57,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:22:57,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:22:57,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:22:57,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:22:57,733 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9ef65ef4-ad36-4da3-9a12-fc1c93038081/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2019-10-22 11:22:57,745 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:22:57,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:22:57,748 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:22:57,748 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:22:57,748 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:22:57,749 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:22:57,749 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:22:57,749 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:22:57,749 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:22:57,749 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:22:57,749 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:22:57,750 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:22:57,750 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 11:22:57,750 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 11:22:57,751 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:22:57,751 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:22:57,751 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:22:57,751 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:22:57,751 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:22:57,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:22:57,752 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 11:22:57,752 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 11:22:57,752 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 11:22:57,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:22:57,752 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:22:57,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:22:57,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:22:57,753 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:22:57,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:22:57,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:57,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:22:57,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:22:57,755 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:22:57,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:22:57,755 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:22:57,756 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_9ef65ef4-ad36-4da3-9a12-fc1c93038081/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 -> e6399ca05df7547b7620299987a8a06e9e2c006b [2019-10-22 11:22:57,791 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:22:57,800 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:22:57,803 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:22:57,805 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:22:57,805 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:22:57,806 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9ef65ef4-ad36-4da3-9a12-fc1c93038081/bin/utaipan/../../sv-benchmarks/c/heap-manipulation/merge_sort-2.i [2019-10-22 11:22:57,859 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9ef65ef4-ad36-4da3-9a12-fc1c93038081/bin/utaipan/data/2b444a66b/4559adfde5024b1f9d8aedbcf881f9d7/FLAGa51583338 [2019-10-22 11:22:58,298 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:22:58,298 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9ef65ef4-ad36-4da3-9a12-fc1c93038081/sv-benchmarks/c/heap-manipulation/merge_sort-2.i [2019-10-22 11:22:58,309 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9ef65ef4-ad36-4da3-9a12-fc1c93038081/bin/utaipan/data/2b444a66b/4559adfde5024b1f9d8aedbcf881f9d7/FLAGa51583338 [2019-10-22 11:22:58,654 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9ef65ef4-ad36-4da3-9a12-fc1c93038081/bin/utaipan/data/2b444a66b/4559adfde5024b1f9d8aedbcf881f9d7 [2019-10-22 11:22:58,656 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:22:58,657 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:22:58,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:58,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:22:58,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:22:58,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:58" (1/1) ... [2019-10-22 11:22:58,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5faea8c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:58, skipping insertion in model container [2019-10-22 11:22:58,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:58" (1/1) ... [2019-10-22 11:22:58,672 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:22:58,707 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:22:59,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:59,088 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:22:59,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:59,178 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:22:59,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:59 WrapperNode [2019-10-22 11:22:59,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:59,180 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:59,180 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:22:59,180 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:22:59,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:59" (1/1) ... [2019-10-22 11:22:59,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:59" (1/1) ... [2019-10-22 11:22:59,242 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:59,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:22:59,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:22:59,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:22:59,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:59" (1/1) ... [2019-10-22 11:22:59,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:59" (1/1) ... [2019-10-22 11:22:59,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:59" (1/1) ... [2019-10-22 11:22:59,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:59" (1/1) ... [2019-10-22 11:22:59,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:59" (1/1) ... [2019-10-22 11:22:59,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:59" (1/1) ... [2019-10-22 11:22:59,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:59" (1/1) ... [2019-10-22 11:22:59,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:22:59,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:22:59,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:22:59,283 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:22:59,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ef65ef4-ad36-4da3-9a12-fc1c93038081/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 11:22:59,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 11:22:59,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:22:59,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 11:22:59,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:22:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 11:22:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 11:22:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:22:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:22:59,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:23:00,256 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:23:00,256 INFO L284 CfgBuilder]: Removed 75 assume(true) statements. [2019-10-22 11:23:00,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:00 BoogieIcfgContainer [2019-10-22 11:23:00,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:23:00,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:23:00,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:23:00,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:23:00,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:22:58" (1/3) ... [2019-10-22 11:23:00,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2cdd7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:00, skipping insertion in model container [2019-10-22 11:23:00,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:59" (2/3) ... [2019-10-22 11:23:00,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2cdd7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:00, skipping insertion in model container [2019-10-22 11:23:00,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:00" (3/3) ... [2019-10-22 11:23:00,265 INFO L109 eAbstractionObserver]: Analyzing ICFG merge_sort-2.i [2019-10-22 11:23:00,275 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:23:00,283 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 118 error locations. [2019-10-22 11:23:00,294 INFO L249 AbstractCegarLoop]: Starting to check reachability of 118 error locations. [2019-10-22 11:23:00,313 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:23:00,313 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 11:23:00,313 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:23:00,313 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:23:00,314 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:23:00,314 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:23:00,314 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:23:00,314 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:23:00,336 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states. [2019-10-22 11:23:00,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 11:23:00,344 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:00,345 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 11:23:00,347 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr84REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr107REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr88REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr95REQUIRES_VIOLATION, ULTIMATE.startErr117ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr109ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr116ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr76REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr99REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr80REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr103REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr83REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr106REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr87REQUIRES_VIOLATION, ULTIMATE.startErr115ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr114ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr68REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr91REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr75REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr98REQUIRES_VIOLATION, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr102REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr82REQUIRES_VIOLATION, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr105REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr86REQUIRES_VIOLATION, ULTIMATE.startErr94ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr113REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr90REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr97REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr101REQUIRES_VIOLATION, ULTIMATE.startErr104REQUIRES_VIOLATION, ULTIMATE.startErr110ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr85REQUIRES_VIOLATION, ULTIMATE.startErr108REQUIRES_VIOLATION, ULTIMATE.startErr92ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr89REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr112REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr111ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr96REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr93ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr77REQUIRES_VIOLATION, ULTIMATE.startErr100REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr81REQUIRES_VIOLATION]=== [2019-10-22 11:23:00,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:00,352 INFO L82 PathProgramCache]: Analyzing trace with hash 28730117, now seen corresponding path program 1 times [2019-10-22 11:23:00,361 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:00,361 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262141354] [2019-10-22 11:23:00,362 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:00,362 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:00,362 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:00,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:00,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:00,464 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262141354] [2019-10-22 11:23:00,465 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:00,465 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:23:00,465 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337283307] [2019-10-22 11:23:00,469 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:23:00,471 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:00,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:23:00,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:23:00,487 INFO L87 Difference]: Start difference. First operand 275 states. Second operand 2 states. [2019-10-22 11:23:00,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:00,513 INFO L93 Difference]: Finished difference Result 275 states and 287 transitions. [2019-10-22 11:23:00,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:23:00,515 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2019-10-22 11:23:00,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:00,526 INFO L225 Difference]: With dead ends: 275 [2019-10-22 11:23:00,526 INFO L226 Difference]: Without dead ends: 260 [2019-10-22 11:23:00,528 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:23:00,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2019-10-22 11:23:00,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2019-10-22 11:23:00,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2019-10-22 11:23:00,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 272 transitions. [2019-10-22 11:23:00,580 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 272 transitions. Word has length 5 [2019-10-22 11:23:00,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:00,581 INFO L462 AbstractCegarLoop]: Abstraction has 260 states and 272 transitions. [2019-10-22 11:23:00,581 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:23:00,581 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 272 transitions. [2019-10-22 11:23:00,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 11:23:00,581 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:00,581 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-10-22 11:23:00,582 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr84REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr107REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr88REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr95REQUIRES_VIOLATION, ULTIMATE.startErr117ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr109ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr116ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr76REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr99REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr80REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr103REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr83REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr106REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr87REQUIRES_VIOLATION, ULTIMATE.startErr115ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr114ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr68REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr91REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr75REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr98REQUIRES_VIOLATION, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr102REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr82REQUIRES_VIOLATION, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr105REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr86REQUIRES_VIOLATION, ULTIMATE.startErr94ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr113REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr90REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr97REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr101REQUIRES_VIOLATION, ULTIMATE.startErr104REQUIRES_VIOLATION, ULTIMATE.startErr110ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr85REQUIRES_VIOLATION, ULTIMATE.startErr108REQUIRES_VIOLATION, ULTIMATE.startErr92ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr89REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr112REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr111ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr96REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr93ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr77REQUIRES_VIOLATION, ULTIMATE.startErr100REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr81REQUIRES_VIOLATION]=== [2019-10-22 11:23:00,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:00,582 INFO L82 PathProgramCache]: Analyzing trace with hash 889570853, now seen corresponding path program 1 times [2019-10-22 11:23:00,582 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:00,582 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100701561] [2019-10-22 11:23:00,582 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:00,582 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:00,582 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:00,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:00,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:00,623 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100701561] [2019-10-22 11:23:00,623 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:00,624 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:23:00,624 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682881071] [2019-10-22 11:23:00,625 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:00,625 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:00,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:00,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:00,628 INFO L87 Difference]: Start difference. First operand 260 states and 272 transitions. Second operand 3 states. [2019-10-22 11:23:00,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:00,978 INFO L93 Difference]: Finished difference Result 378 states and 396 transitions. [2019-10-22 11:23:00,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:00,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-10-22 11:23:00,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:00,980 INFO L225 Difference]: With dead ends: 378 [2019-10-22 11:23:00,981 INFO L226 Difference]: Without dead ends: 377 [2019-10-22 11:23:00,981 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:00,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2019-10-22 11:23:01,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 263. [2019-10-22 11:23:01,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2019-10-22 11:23:01,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 276 transitions. [2019-10-22 11:23:01,010 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 276 transitions. Word has length 6 [2019-10-22 11:23:01,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:01,011 INFO L462 AbstractCegarLoop]: Abstraction has 263 states and 276 transitions. [2019-10-22 11:23:01,011 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:01,011 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 276 transitions. [2019-10-22 11:23:01,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 11:23:01,011 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:01,011 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-10-22 11:23:01,012 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr84REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr107REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr88REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr95REQUIRES_VIOLATION, ULTIMATE.startErr117ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr109ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr116ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr76REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr99REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr80REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr103REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr83REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr106REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr87REQUIRES_VIOLATION, ULTIMATE.startErr115ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr114ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr68REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr91REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr75REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr98REQUIRES_VIOLATION, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr102REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr82REQUIRES_VIOLATION, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr105REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr86REQUIRES_VIOLATION, ULTIMATE.startErr94ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr113REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr90REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr97REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr101REQUIRES_VIOLATION, ULTIMATE.startErr104REQUIRES_VIOLATION, ULTIMATE.startErr110ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr85REQUIRES_VIOLATION, ULTIMATE.startErr108REQUIRES_VIOLATION, ULTIMATE.startErr92ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr89REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr112REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr111ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr96REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr93ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr77REQUIRES_VIOLATION, ULTIMATE.startErr100REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr81REQUIRES_VIOLATION]=== [2019-10-22 11:23:01,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:01,012 INFO L82 PathProgramCache]: Analyzing trace with hash 889571339, now seen corresponding path program 1 times [2019-10-22 11:23:01,012 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:01,013 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679799503] [2019-10-22 11:23:01,013 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:01,013 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:01,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:01,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:01,068 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679799503] [2019-10-22 11:23:01,069 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:01,069 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:23:01,069 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768665836] [2019-10-22 11:23:01,069 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:01,070 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:01,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:01,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:01,070 INFO L87 Difference]: Start difference. First operand 263 states and 276 transitions. Second operand 3 states. [2019-10-22 11:23:01,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:01,403 INFO L93 Difference]: Finished difference Result 472 states and 494 transitions. [2019-10-22 11:23:01,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:01,404 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-10-22 11:23:01,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:01,406 INFO L225 Difference]: With dead ends: 472 [2019-10-22 11:23:01,406 INFO L226 Difference]: Without dead ends: 472 [2019-10-22 11:23:01,407 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:01,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2019-10-22 11:23:01,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 261. [2019-10-22 11:23:01,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2019-10-22 11:23:01,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 274 transitions. [2019-10-22 11:23:01,440 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 274 transitions. Word has length 6 [2019-10-22 11:23:01,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:01,441 INFO L462 AbstractCegarLoop]: Abstraction has 261 states and 274 transitions. [2019-10-22 11:23:01,441 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:01,441 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 274 transitions. [2019-10-22 11:23:01,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 11:23:01,441 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:01,441 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-10-22 11:23:01,442 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr84REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr107REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr88REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr95REQUIRES_VIOLATION, ULTIMATE.startErr117ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr109ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr116ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr76REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr99REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr80REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr103REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr83REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr106REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr87REQUIRES_VIOLATION, ULTIMATE.startErr115ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr114ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr68REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr91REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr75REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr98REQUIRES_VIOLATION, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr102REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr82REQUIRES_VIOLATION, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr105REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr86REQUIRES_VIOLATION, ULTIMATE.startErr94ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr113REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr90REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr97REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr101REQUIRES_VIOLATION, ULTIMATE.startErr104REQUIRES_VIOLATION, ULTIMATE.startErr110ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr85REQUIRES_VIOLATION, ULTIMATE.startErr108REQUIRES_VIOLATION, ULTIMATE.startErr92ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr89REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr112REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr111ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr96REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr93ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr77REQUIRES_VIOLATION, ULTIMATE.startErr100REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr81REQUIRES_VIOLATION]=== [2019-10-22 11:23:01,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:01,443 INFO L82 PathProgramCache]: Analyzing trace with hash 889571340, now seen corresponding path program 1 times [2019-10-22 11:23:01,443 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:01,443 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431381084] [2019-10-22 11:23:01,443 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:01,443 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:01,443 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:01,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:01,508 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431381084] [2019-10-22 11:23:01,508 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:01,508 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:23:01,509 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219514128] [2019-10-22 11:23:01,509 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:01,509 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:01,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:01,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:01,510 INFO L87 Difference]: Start difference. First operand 261 states and 274 transitions. Second operand 3 states. [2019-10-22 11:23:01,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:01,765 INFO L93 Difference]: Finished difference Result 387 states and 405 transitions. [2019-10-22 11:23:01,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:01,766 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-10-22 11:23:01,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:01,767 INFO L225 Difference]: With dead ends: 387 [2019-10-22 11:23:01,767 INFO L226 Difference]: Without dead ends: 387 [2019-10-22 11:23:01,768 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:01,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2019-10-22 11:23:01,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 259. [2019-10-22 11:23:01,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2019-10-22 11:23:01,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 272 transitions. [2019-10-22 11:23:01,782 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 272 transitions. Word has length 6 [2019-10-22 11:23:01,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:01,783 INFO L462 AbstractCegarLoop]: Abstraction has 259 states and 272 transitions. [2019-10-22 11:23:01,783 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:01,783 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 272 transitions. [2019-10-22 11:23:01,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 11:23:01,783 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:01,783 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:01,784 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr84REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr107REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr88REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr95REQUIRES_VIOLATION, ULTIMATE.startErr117ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr109ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr116ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr76REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr99REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr80REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr103REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr83REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr106REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr87REQUIRES_VIOLATION, ULTIMATE.startErr115ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr114ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr68REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr91REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr75REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr98REQUIRES_VIOLATION, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr102REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr82REQUIRES_VIOLATION, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr105REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr86REQUIRES_VIOLATION, ULTIMATE.startErr94ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr113REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr90REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr97REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr101REQUIRES_VIOLATION, ULTIMATE.startErr104REQUIRES_VIOLATION, ULTIMATE.startErr110ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr85REQUIRES_VIOLATION, ULTIMATE.startErr108REQUIRES_VIOLATION, ULTIMATE.startErr92ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr89REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr112REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr111ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr96REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr93ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr77REQUIRES_VIOLATION, ULTIMATE.startErr100REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr81REQUIRES_VIOLATION]=== [2019-10-22 11:23:01,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:01,785 INFO L82 PathProgramCache]: Analyzing trace with hash 178650073, now seen corresponding path program 1 times [2019-10-22 11:23:01,785 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:01,785 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011369146] [2019-10-22 11:23:01,785 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:01,785 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:01,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:01,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:01,805 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011369146] [2019-10-22 11:23:01,805 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:01,805 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:23:01,805 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987825760] [2019-10-22 11:23:01,805 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:01,806 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:01,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:01,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:01,806 INFO L87 Difference]: Start difference. First operand 259 states and 272 transitions. Second operand 3 states. [2019-10-22 11:23:01,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:01,833 INFO L93 Difference]: Finished difference Result 274 states and 285 transitions. [2019-10-22 11:23:01,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:01,833 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-10-22 11:23:01,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:01,834 INFO L225 Difference]: With dead ends: 274 [2019-10-22 11:23:01,834 INFO L226 Difference]: Without dead ends: 273 [2019-10-22 11:23:01,835 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:01,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2019-10-22 11:23:01,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 258. [2019-10-22 11:23:01,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2019-10-22 11:23:01,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 270 transitions. [2019-10-22 11:23:01,840 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 270 transitions. Word has length 8 [2019-10-22 11:23:01,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:01,840 INFO L462 AbstractCegarLoop]: Abstraction has 258 states and 270 transitions. [2019-10-22 11:23:01,840 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:01,841 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 270 transitions. [2019-10-22 11:23:01,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 11:23:01,841 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:01,841 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:01,841 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr84REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr107REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr88REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr95REQUIRES_VIOLATION, ULTIMATE.startErr117ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr109ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr116ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr76REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr99REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr80REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr103REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr83REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr106REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr87REQUIRES_VIOLATION, ULTIMATE.startErr115ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr114ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr68REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr91REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr75REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr98REQUIRES_VIOLATION, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr102REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr82REQUIRES_VIOLATION, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr105REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr86REQUIRES_VIOLATION, ULTIMATE.startErr94ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr113REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr90REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr97REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr101REQUIRES_VIOLATION, ULTIMATE.startErr104REQUIRES_VIOLATION, ULTIMATE.startErr110ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr85REQUIRES_VIOLATION, ULTIMATE.startErr108REQUIRES_VIOLATION, ULTIMATE.startErr92ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr89REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr112REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr111ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr96REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr93ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr77REQUIRES_VIOLATION, ULTIMATE.startErr100REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr81REQUIRES_VIOLATION]=== [2019-10-22 11:23:01,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:01,842 INFO L82 PathProgramCache]: Analyzing trace with hash -2119660206, now seen corresponding path program 1 times [2019-10-22 11:23:01,842 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:01,842 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698389060] [2019-10-22 11:23:01,843 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:01,843 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:01,843 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:01,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:01,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:01,872 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698389060] [2019-10-22 11:23:01,872 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:01,873 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:23:01,873 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231196400] [2019-10-22 11:23:01,873 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:01,873 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:01,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:01,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:01,874 INFO L87 Difference]: Start difference. First operand 258 states and 270 transitions. Second operand 3 states. [2019-10-22 11:23:02,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:02,120 INFO L93 Difference]: Finished difference Result 422 states and 442 transitions. [2019-10-22 11:23:02,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:02,120 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-10-22 11:23:02,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:02,122 INFO L225 Difference]: With dead ends: 422 [2019-10-22 11:23:02,122 INFO L226 Difference]: Without dead ends: 422 [2019-10-22 11:23:02,122 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:02,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2019-10-22 11:23:02,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 256. [2019-10-22 11:23:02,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2019-10-22 11:23:02,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 268 transitions. [2019-10-22 11:23:02,128 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 268 transitions. Word has length 11 [2019-10-22 11:23:02,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:02,128 INFO L462 AbstractCegarLoop]: Abstraction has 256 states and 268 transitions. [2019-10-22 11:23:02,128 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:02,128 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 268 transitions. [2019-10-22 11:23:02,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 11:23:02,129 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:02,129 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:02,129 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr84REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr107REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr88REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr95REQUIRES_VIOLATION, ULTIMATE.startErr117ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr109ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr116ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr76REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr99REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr80REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr103REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr83REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr106REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr87REQUIRES_VIOLATION, ULTIMATE.startErr115ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr114ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr68REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr91REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr75REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr98REQUIRES_VIOLATION, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr102REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr82REQUIRES_VIOLATION, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr105REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr86REQUIRES_VIOLATION, ULTIMATE.startErr94ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr113REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr90REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr97REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr101REQUIRES_VIOLATION, ULTIMATE.startErr104REQUIRES_VIOLATION, ULTIMATE.startErr110ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr85REQUIRES_VIOLATION, ULTIMATE.startErr108REQUIRES_VIOLATION, ULTIMATE.startErr92ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr89REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr112REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr111ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr96REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr93ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr77REQUIRES_VIOLATION, ULTIMATE.startErr100REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr81REQUIRES_VIOLATION]=== [2019-10-22 11:23:02,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:02,130 INFO L82 PathProgramCache]: Analyzing trace with hash -2119660205, now seen corresponding path program 1 times [2019-10-22 11:23:02,130 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:02,130 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995945698] [2019-10-22 11:23:02,130 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:02,131 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:02,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:02,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:02,181 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995945698] [2019-10-22 11:23:02,181 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:02,182 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:23:02,182 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486964010] [2019-10-22 11:23:02,182 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:02,182 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:02,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:02,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:02,183 INFO L87 Difference]: Start difference. First operand 256 states and 268 transitions. Second operand 3 states. [2019-10-22 11:23:02,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:02,362 INFO L93 Difference]: Finished difference Result 337 states and 353 transitions. [2019-10-22 11:23:02,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:02,362 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-10-22 11:23:02,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:02,363 INFO L225 Difference]: With dead ends: 337 [2019-10-22 11:23:02,364 INFO L226 Difference]: Without dead ends: 337 [2019-10-22 11:23:02,364 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:02,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2019-10-22 11:23:02,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 254. [2019-10-22 11:23:02,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2019-10-22 11:23:02,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 266 transitions. [2019-10-22 11:23:02,369 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 266 transitions. Word has length 11 [2019-10-22 11:23:02,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:02,369 INFO L462 AbstractCegarLoop]: Abstraction has 254 states and 266 transitions. [2019-10-22 11:23:02,369 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:02,369 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 266 transitions. [2019-10-22 11:23:02,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 11:23:02,370 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:02,370 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:02,370 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr84REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr107REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr88REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr95REQUIRES_VIOLATION, ULTIMATE.startErr117ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr109ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr116ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr76REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr99REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr80REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr103REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr83REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr106REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr87REQUIRES_VIOLATION, ULTIMATE.startErr115ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr114ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr68REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr91REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr75REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr98REQUIRES_VIOLATION, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr102REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr82REQUIRES_VIOLATION, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr105REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr86REQUIRES_VIOLATION, ULTIMATE.startErr94ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr113REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr90REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr97REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr101REQUIRES_VIOLATION, ULTIMATE.startErr104REQUIRES_VIOLATION, ULTIMATE.startErr110ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr85REQUIRES_VIOLATION, ULTIMATE.startErr108REQUIRES_VIOLATION, ULTIMATE.startErr92ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr89REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr112REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr111ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr96REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr93ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr77REQUIRES_VIOLATION, ULTIMATE.startErr100REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr81REQUIRES_VIOLATION]=== [2019-10-22 11:23:02,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:02,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1857745782, now seen corresponding path program 1 times [2019-10-22 11:23:02,371 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:02,371 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930255523] [2019-10-22 11:23:02,371 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:02,371 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:02,371 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:02,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:02,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:02,415 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930255523] [2019-10-22 11:23:02,415 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:02,415 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:23:02,415 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696553869] [2019-10-22 11:23:02,415 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:23:02,416 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:02,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:23:02,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:23:02,416 INFO L87 Difference]: Start difference. First operand 254 states and 266 transitions. Second operand 4 states. [2019-10-22 11:23:02,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:02,477 INFO L93 Difference]: Finished difference Result 450 states and 471 transitions. [2019-10-22 11:23:02,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:23:02,478 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-10-22 11:23:02,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:02,479 INFO L225 Difference]: With dead ends: 450 [2019-10-22 11:23:02,479 INFO L226 Difference]: Without dead ends: 450 [2019-10-22 11:23:02,480 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:23:02,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2019-10-22 11:23:02,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 254. [2019-10-22 11:23:02,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2019-10-22 11:23:02,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 265 transitions. [2019-10-22 11:23:02,485 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 265 transitions. Word has length 17 [2019-10-22 11:23:02,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:02,486 INFO L462 AbstractCegarLoop]: Abstraction has 254 states and 265 transitions. [2019-10-22 11:23:02,486 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:23:02,486 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 265 transitions. [2019-10-22 11:23:02,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:23:02,486 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:02,486 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:02,487 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr84REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr107REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr88REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr95REQUIRES_VIOLATION, ULTIMATE.startErr117ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr109ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr116ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr76REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr99REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr80REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr103REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr83REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr106REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr87REQUIRES_VIOLATION, ULTIMATE.startErr115ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr114ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr68REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr91REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr75REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr98REQUIRES_VIOLATION, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr102REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr82REQUIRES_VIOLATION, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr105REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr86REQUIRES_VIOLATION, ULTIMATE.startErr94ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr113REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr90REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr97REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr101REQUIRES_VIOLATION, ULTIMATE.startErr104REQUIRES_VIOLATION, ULTIMATE.startErr110ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr85REQUIRES_VIOLATION, ULTIMATE.startErr108REQUIRES_VIOLATION, ULTIMATE.startErr92ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr89REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr112REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr111ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr96REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr93ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr77REQUIRES_VIOLATION, ULTIMATE.startErr100REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr81REQUIRES_VIOLATION]=== [2019-10-22 11:23:02,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:02,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1413146390, now seen corresponding path program 1 times [2019-10-22 11:23:02,487 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:02,487 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110380905] [2019-10-22 11:23:02,488 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:02,488 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:02,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:02,553 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:02,553 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110380905] [2019-10-22 11:23:02,553 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:02,554 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:23:02,554 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985123411] [2019-10-22 11:23:02,555 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:23:02,556 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:02,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:23:02,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:23:02,556 INFO L87 Difference]: Start difference. First operand 254 states and 265 transitions. Second operand 5 states. [2019-10-22 11:23:03,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:03,060 INFO L93 Difference]: Finished difference Result 529 states and 556 transitions. [2019-10-22 11:23:03,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:23:03,061 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-10-22 11:23:03,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:03,063 INFO L225 Difference]: With dead ends: 529 [2019-10-22 11:23:03,063 INFO L226 Difference]: Without dead ends: 529 [2019-10-22 11:23:03,063 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:23:03,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2019-10-22 11:23:03,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 247. [2019-10-22 11:23:03,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2019-10-22 11:23:03,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 260 transitions. [2019-10-22 11:23:03,069 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 260 transitions. Word has length 19 [2019-10-22 11:23:03,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:03,069 INFO L462 AbstractCegarLoop]: Abstraction has 247 states and 260 transitions. [2019-10-22 11:23:03,069 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:23:03,069 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 260 transitions. [2019-10-22 11:23:03,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:23:03,070 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:03,070 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:03,071 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr84REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr107REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr88REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr95REQUIRES_VIOLATION, ULTIMATE.startErr117ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr109ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr116ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr76REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr99REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr80REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr103REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr83REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr106REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr87REQUIRES_VIOLATION, ULTIMATE.startErr115ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr114ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr68REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr91REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr75REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr98REQUIRES_VIOLATION, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr102REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr82REQUIRES_VIOLATION, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr105REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr86REQUIRES_VIOLATION, ULTIMATE.startErr94ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr113REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr90REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr97REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr101REQUIRES_VIOLATION, ULTIMATE.startErr104REQUIRES_VIOLATION, ULTIMATE.startErr110ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr85REQUIRES_VIOLATION, ULTIMATE.startErr108REQUIRES_VIOLATION, ULTIMATE.startErr92ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr89REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr112REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr111ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr96REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr93ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr77REQUIRES_VIOLATION, ULTIMATE.startErr100REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr81REQUIRES_VIOLATION]=== [2019-10-22 11:23:03,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:03,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1413146389, now seen corresponding path program 1 times [2019-10-22 11:23:03,071 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:03,071 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282861592] [2019-10-22 11:23:03,071 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:03,071 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:03,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:03,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:03,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:03,131 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282861592] [2019-10-22 11:23:03,132 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:03,132 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:23:03,132 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314347691] [2019-10-22 11:23:03,132 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:23:03,132 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:03,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:23:03,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:23:03,133 INFO L87 Difference]: Start difference. First operand 247 states and 260 transitions. Second operand 5 states. [2019-10-22 11:23:03,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:03,581 INFO L93 Difference]: Finished difference Result 582 states and 610 transitions. [2019-10-22 11:23:03,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:23:03,582 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-10-22 11:23:03,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:03,585 INFO L225 Difference]: With dead ends: 582 [2019-10-22 11:23:03,585 INFO L226 Difference]: Without dead ends: 582 [2019-10-22 11:23:03,585 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:23:03,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2019-10-22 11:23:03,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 293. [2019-10-22 11:23:03,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2019-10-22 11:23:03,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 321 transitions. [2019-10-22 11:23:03,595 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 321 transitions. Word has length 19 [2019-10-22 11:23:03,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:03,595 INFO L462 AbstractCegarLoop]: Abstraction has 293 states and 321 transitions. [2019-10-22 11:23:03,595 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:23:03,596 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 321 transitions. [2019-10-22 11:23:03,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 11:23:03,596 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:03,597 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:03,597 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr84REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr107REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr88REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr95REQUIRES_VIOLATION, ULTIMATE.startErr117ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr109ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr116ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr76REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr99REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr80REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr103REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr83REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr106REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr87REQUIRES_VIOLATION, ULTIMATE.startErr115ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr114ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr68REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr91REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr75REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr98REQUIRES_VIOLATION, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr102REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr82REQUIRES_VIOLATION, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr105REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr86REQUIRES_VIOLATION, ULTIMATE.startErr94ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr113REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr90REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr97REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr101REQUIRES_VIOLATION, ULTIMATE.startErr104REQUIRES_VIOLATION, ULTIMATE.startErr110ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr85REQUIRES_VIOLATION, ULTIMATE.startErr108REQUIRES_VIOLATION, ULTIMATE.startErr92ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr89REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr112REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr111ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr96REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr93ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr77REQUIRES_VIOLATION, ULTIMATE.startErr100REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr81REQUIRES_VIOLATION]=== [2019-10-22 11:23:03,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:03,598 INFO L82 PathProgramCache]: Analyzing trace with hash -474788098, now seen corresponding path program 1 times [2019-10-22 11:23:03,598 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:03,598 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975445457] [2019-10-22 11:23:03,598 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:03,598 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:03,598 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:03,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:03,738 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975445457] [2019-10-22 11:23:03,738 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:03,738 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 11:23:03,738 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667918542] [2019-10-22 11:23:03,739 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:23:03,739 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:03,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:23:03,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:23:03,739 INFO L87 Difference]: Start difference. First operand 293 states and 321 transitions. Second operand 8 states. [2019-10-22 11:23:04,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:04,489 INFO L93 Difference]: Finished difference Result 683 states and 720 transitions. [2019-10-22 11:23:04,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:23:04,490 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2019-10-22 11:23:04,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:04,492 INFO L225 Difference]: With dead ends: 683 [2019-10-22 11:23:04,492 INFO L226 Difference]: Without dead ends: 683 [2019-10-22 11:23:04,492 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2019-10-22 11:23:04,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2019-10-22 11:23:04,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 294. [2019-10-22 11:23:04,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2019-10-22 11:23:04,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 323 transitions. [2019-10-22 11:23:04,499 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 323 transitions. Word has length 30 [2019-10-22 11:23:04,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:04,500 INFO L462 AbstractCegarLoop]: Abstraction has 294 states and 323 transitions. [2019-10-22 11:23:04,500 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:23:04,500 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 323 transitions. [2019-10-22 11:23:04,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 11:23:04,500 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:04,500 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:04,501 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr84REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr107REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr88REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr95REQUIRES_VIOLATION, ULTIMATE.startErr117ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr109ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr116ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr76REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr99REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr80REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr103REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr83REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr106REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr87REQUIRES_VIOLATION, ULTIMATE.startErr115ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr114ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr68REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr91REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr75REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr98REQUIRES_VIOLATION, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr102REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr82REQUIRES_VIOLATION, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr105REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr86REQUIRES_VIOLATION, ULTIMATE.startErr94ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr113REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr90REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr97REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr101REQUIRES_VIOLATION, ULTIMATE.startErr104REQUIRES_VIOLATION, ULTIMATE.startErr110ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr85REQUIRES_VIOLATION, ULTIMATE.startErr108REQUIRES_VIOLATION, ULTIMATE.startErr92ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr89REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr112REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr111ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr96REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr93ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr77REQUIRES_VIOLATION, ULTIMATE.startErr100REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr81REQUIRES_VIOLATION]=== [2019-10-22 11:23:04,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:04,501 INFO L82 PathProgramCache]: Analyzing trace with hash -474788097, now seen corresponding path program 1 times [2019-10-22 11:23:04,501 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:04,501 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71088681] [2019-10-22 11:23:04,501 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:04,501 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:04,501 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:04,586 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:04,586 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71088681] [2019-10-22 11:23:04,586 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:04,587 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:23:04,587 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860788091] [2019-10-22 11:23:04,587 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:23:04,587 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:04,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:23:04,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:23:04,587 INFO L87 Difference]: Start difference. First operand 294 states and 323 transitions. Second operand 7 states. [2019-10-22 11:23:05,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:05,345 INFO L93 Difference]: Finished difference Result 645 states and 677 transitions. [2019-10-22 11:23:05,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 11:23:05,346 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2019-10-22 11:23:05,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:05,348 INFO L225 Difference]: With dead ends: 645 [2019-10-22 11:23:05,348 INFO L226 Difference]: Without dead ends: 645 [2019-10-22 11:23:05,348 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2019-10-22 11:23:05,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2019-10-22 11:23:05,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 294. [2019-10-22 11:23:05,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2019-10-22 11:23:05,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 322 transitions. [2019-10-22 11:23:05,355 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 322 transitions. Word has length 30 [2019-10-22 11:23:05,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:05,355 INFO L462 AbstractCegarLoop]: Abstraction has 294 states and 322 transitions. [2019-10-22 11:23:05,355 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:23:05,355 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 322 transitions. [2019-10-22 11:23:05,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 11:23:05,356 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:05,356 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:05,357 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr84REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr107REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr88REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr95REQUIRES_VIOLATION, ULTIMATE.startErr117ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr109ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr116ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr76REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr99REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr80REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr103REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr83REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr106REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr87REQUIRES_VIOLATION, ULTIMATE.startErr115ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr114ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr68REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr91REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr75REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr98REQUIRES_VIOLATION, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr102REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr82REQUIRES_VIOLATION, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr105REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr86REQUIRES_VIOLATION, ULTIMATE.startErr94ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr113REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr90REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr97REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr101REQUIRES_VIOLATION, ULTIMATE.startErr104REQUIRES_VIOLATION, ULTIMATE.startErr110ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr85REQUIRES_VIOLATION, ULTIMATE.startErr108REQUIRES_VIOLATION, ULTIMATE.startErr92ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr89REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr112REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr111ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr96REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr93ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr77REQUIRES_VIOLATION, ULTIMATE.startErr100REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr81REQUIRES_VIOLATION]=== [2019-10-22 11:23:05,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:05,357 INFO L82 PathProgramCache]: Analyzing trace with hash 666233760, now seen corresponding path program 1 times [2019-10-22 11:23:05,357 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:05,357 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680932472] [2019-10-22 11:23:05,357 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:05,357 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:05,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:05,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:05,433 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:05,433 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680932472] [2019-10-22 11:23:05,433 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:05,434 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 11:23:05,434 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730873950] [2019-10-22 11:23:05,434 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:23:05,434 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:05,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:23:05,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:23:05,435 INFO L87 Difference]: Start difference. First operand 294 states and 322 transitions. Second operand 8 states. [2019-10-22 11:23:06,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:06,115 INFO L93 Difference]: Finished difference Result 681 states and 718 transitions. [2019-10-22 11:23:06,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:23:06,115 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2019-10-22 11:23:06,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:06,117 INFO L225 Difference]: With dead ends: 681 [2019-10-22 11:23:06,117 INFO L226 Difference]: Without dead ends: 681 [2019-10-22 11:23:06,118 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2019-10-22 11:23:06,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2019-10-22 11:23:06,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 294. [2019-10-22 11:23:06,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2019-10-22 11:23:06,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 321 transitions. [2019-10-22 11:23:06,125 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 321 transitions. Word has length 30 [2019-10-22 11:23:06,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:06,125 INFO L462 AbstractCegarLoop]: Abstraction has 294 states and 321 transitions. [2019-10-22 11:23:06,125 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:23:06,125 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 321 transitions. [2019-10-22 11:23:06,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 11:23:06,126 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:06,126 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:06,127 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr84REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr107REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr88REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr95REQUIRES_VIOLATION, ULTIMATE.startErr117ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr109ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr116ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr76REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr99REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr80REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr103REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr83REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr106REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr87REQUIRES_VIOLATION, ULTIMATE.startErr115ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr114ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr68REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr91REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr75REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr98REQUIRES_VIOLATION, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr102REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr82REQUIRES_VIOLATION, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr105REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr86REQUIRES_VIOLATION, ULTIMATE.startErr94ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr113REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr90REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr97REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr101REQUIRES_VIOLATION, ULTIMATE.startErr104REQUIRES_VIOLATION, ULTIMATE.startErr110ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr85REQUIRES_VIOLATION, ULTIMATE.startErr108REQUIRES_VIOLATION, ULTIMATE.startErr92ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr89REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr112REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr111ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr96REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr93ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr77REQUIRES_VIOLATION, ULTIMATE.startErr100REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr81REQUIRES_VIOLATION]=== [2019-10-22 11:23:06,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:06,127 INFO L82 PathProgramCache]: Analyzing trace with hash 666233761, now seen corresponding path program 1 times [2019-10-22 11:23:06,127 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:06,127 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194410364] [2019-10-22 11:23:06,127 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:06,127 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:06,128 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:06,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:06,215 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:06,216 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194410364] [2019-10-22 11:23:06,216 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:06,216 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:23:06,216 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008073513] [2019-10-22 11:23:06,216 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:23:06,216 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:06,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:23:06,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:23:06,217 INFO L87 Difference]: Start difference. First operand 294 states and 321 transitions. Second operand 7 states. [2019-10-22 11:23:06,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:06,791 INFO L93 Difference]: Finished difference Result 643 states and 675 transitions. [2019-10-22 11:23:06,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 11:23:06,791 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2019-10-22 11:23:06,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:06,793 INFO L225 Difference]: With dead ends: 643 [2019-10-22 11:23:06,793 INFO L226 Difference]: Without dead ends: 643 [2019-10-22 11:23:06,793 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2019-10-22 11:23:06,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2019-10-22 11:23:06,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 294. [2019-10-22 11:23:06,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2019-10-22 11:23:06,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 320 transitions. [2019-10-22 11:23:06,800 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 320 transitions. Word has length 30 [2019-10-22 11:23:06,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:06,800 INFO L462 AbstractCegarLoop]: Abstraction has 294 states and 320 transitions. [2019-10-22 11:23:06,800 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:23:06,800 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 320 transitions. [2019-10-22 11:23:06,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 11:23:06,801 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:06,801 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:06,801 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr84REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr107REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr88REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr95REQUIRES_VIOLATION, ULTIMATE.startErr117ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr109ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr116ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr76REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr99REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr80REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr103REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr83REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr106REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr87REQUIRES_VIOLATION, ULTIMATE.startErr115ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr114ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr68REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr91REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr75REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr98REQUIRES_VIOLATION, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr102REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr82REQUIRES_VIOLATION, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr105REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr86REQUIRES_VIOLATION, ULTIMATE.startErr94ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr113REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr90REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr97REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr101REQUIRES_VIOLATION, ULTIMATE.startErr104REQUIRES_VIOLATION, ULTIMATE.startErr110ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr85REQUIRES_VIOLATION, ULTIMATE.startErr108REQUIRES_VIOLATION, ULTIMATE.startErr92ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr89REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr112REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr111ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr96REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr93ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr77REQUIRES_VIOLATION, ULTIMATE.startErr100REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr81REQUIRES_VIOLATION]=== [2019-10-22 11:23:06,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:06,802 INFO L82 PathProgramCache]: Analyzing trace with hash 2085445248, now seen corresponding path program 1 times [2019-10-22 11:23:06,802 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:06,802 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114701224] [2019-10-22 11:23:06,803 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:06,803 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:06,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:06,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:07,043 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:07,043 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114701224] [2019-10-22 11:23:07,043 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108611724] [2019-10-22 11:23:07,043 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ef65ef4-ad36-4da3-9a12-fc1c93038081/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:23:07,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:07,104 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 27 conjunts are in the unsatisfiable core [2019-10-22 11:23:07,110 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:07,197 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-10-22 11:23:07,197 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 11:23:07,203 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 11:23:07,206 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-10-22 11:23:07,206 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 11:23:07,211 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 11:23:07,211 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 11:23:07,212 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:22 [2019-10-22 11:23:07,229 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2019-10-22 11:23:07,230 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 11:23:07,238 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 11:23:07,240 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2019-10-22 11:23:07,241 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 11:23:07,244 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 11:23:07,245 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 11:23:07,245 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:40, output treesize:10 [2019-10-22 11:23:07,249 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:07,249 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:07,375 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:07,375 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1819201353] [2019-10-22 11:23:07,381 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 36 [2019-10-22 11:23:07,418 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:23:07,418 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:23:07,692 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:23:07,692 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: inappropriate decl info IMPLEMENTATION at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.getBoogieVar(NonrelationalStatementProcessor.java:348) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleHavocStatement(NonrelationalStatementProcessor.java:325) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:159) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:138) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:107) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:422) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:413) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:140) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.restoreOriginalStateVariables(PoormanCachedPostOperation.java:322) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:120) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.(CegarAbsIntRunner.java:158) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.getOrConstructRunner(IpTcStrategyModuleAbstractInterpretation.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.construct(IpTcStrategyModuleAbstractInterpretation.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 11:23:07,697 INFO L168 Benchmark]: Toolchain (without parser) took 9039.66 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 269.0 MB). Free memory was 937.8 MB in the beginning and 1.2 GB in the end (delta: -218.6 MB). Peak memory consumption was 50.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:07,697 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 11:23:07,697 INFO L168 Benchmark]: CACSL2BoogieTranslator took 521.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 195.0 MB). Free memory was 937.8 MB in the beginning and 1.2 GB in the end (delta: -234.3 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:07,699 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:07,699 INFO L168 Benchmark]: Boogie Preprocessor took 40.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:07,700 INFO L168 Benchmark]: RCFGBuilder took 974.80 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: 77.5 MB). Peak memory consumption was 77.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:07,700 INFO L168 Benchmark]: TraceAbstraction took 7437.09 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 73.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -72.5 MB). Peak memory consumption was 1.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:07,703 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 521.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 195.0 MB). Free memory was 937.8 MB in the beginning and 1.2 GB in the end (delta: -234.3 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 62.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 974.80 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: 77.5 MB). Peak memory consumption was 77.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7437.09 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 73.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -72.5 MB). Peak memory consumption was 1.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inappropriate decl info IMPLEMENTATION de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inappropriate decl info IMPLEMENTATION: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:23:09,659 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:23:09,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:23:09,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:23:09,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:23:09,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:23:09,671 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:23:09,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:23:09,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:23:09,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:23:09,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:23:09,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:23:09,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:23:09,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:23:09,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:23:09,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:23:09,679 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:23:09,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:23:09,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:23:09,683 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:23:09,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:23:09,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:23:09,686 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:23:09,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:23:09,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:23:09,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:23:09,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:23:09,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:23:09,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:23:09,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:23:09,691 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:23:09,691 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:23:09,692 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:23:09,693 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:23:09,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:23:09,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:23:09,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:23:09,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:23:09,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:23:09,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:23:09,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:23:09,697 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9ef65ef4-ad36-4da3-9a12-fc1c93038081/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2019-10-22 11:23:09,708 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:23:09,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:23:09,709 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:23:09,709 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:23:09,709 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:23:09,709 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:23:09,710 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:23:09,710 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:23:09,710 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:23:09,711 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 11:23:09,711 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 11:23:09,711 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:23:09,711 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:23:09,711 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:23:09,711 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:23:09,711 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:23:09,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:23:09,712 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 11:23:09,712 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 11:23:09,712 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 11:23:09,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:23:09,712 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:23:09,712 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:23:09,713 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:23:09,713 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:23:09,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:23:09,713 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:23:09,713 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:23:09,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:23:09,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:23:09,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:23:09,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:23:09,714 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:23:09,715 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:23:09,715 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:23:09,715 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_9ef65ef4-ad36-4da3-9a12-fc1c93038081/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 -> e6399ca05df7547b7620299987a8a06e9e2c006b [2019-10-22 11:23:09,740 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:23:09,750 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:23:09,753 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:23:09,754 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:23:09,754 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:23:09,755 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9ef65ef4-ad36-4da3-9a12-fc1c93038081/bin/utaipan/../../sv-benchmarks/c/heap-manipulation/merge_sort-2.i [2019-10-22 11:23:09,797 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9ef65ef4-ad36-4da3-9a12-fc1c93038081/bin/utaipan/data/4f40d695e/806b48bb653945aab5665fb54c29fc5a/FLAG988c9a203 [2019-10-22 11:23:10,249 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:23:10,250 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9ef65ef4-ad36-4da3-9a12-fc1c93038081/sv-benchmarks/c/heap-manipulation/merge_sort-2.i [2019-10-22 11:23:10,260 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9ef65ef4-ad36-4da3-9a12-fc1c93038081/bin/utaipan/data/4f40d695e/806b48bb653945aab5665fb54c29fc5a/FLAG988c9a203 [2019-10-22 11:23:10,606 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9ef65ef4-ad36-4da3-9a12-fc1c93038081/bin/utaipan/data/4f40d695e/806b48bb653945aab5665fb54c29fc5a [2019-10-22 11:23:10,608 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:23:10,609 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:23:10,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:10,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:23:10,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:23:10,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:10" (1/1) ... [2019-10-22 11:23:10,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13422db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:10, skipping insertion in model container [2019-10-22 11:23:10,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:10" (1/1) ... [2019-10-22 11:23:10,622 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:23:10,655 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:23:11,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:11,060 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:23:11,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:11,167 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:23:11,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:11 WrapperNode [2019-10-22 11:23:11,167 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:11,168 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:11,169 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:23:11,169 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:23:11,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:11" (1/1) ... [2019-10-22 11:23:11,201 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:11" (1/1) ... [2019-10-22 11:23:11,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:11,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:23:11,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:23:11,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:23:11,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:11" (1/1) ... [2019-10-22 11:23:11,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:11" (1/1) ... [2019-10-22 11:23:11,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:11" (1/1) ... [2019-10-22 11:23:11,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:11" (1/1) ... [2019-10-22 11:23:11,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:11" (1/1) ... [2019-10-22 11:23:11,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:11" (1/1) ... [2019-10-22 11:23:11,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:11" (1/1) ... [2019-10-22 11:23:11,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:23:11,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:23:11,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:23:11,279 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:23:11,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ef65ef4-ad36-4da3-9a12-fc1c93038081/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:23:11,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 11:23:11,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 11:23:11,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:23:11,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 11:23:11,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 11:23:11,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 11:23:11,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:23:11,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:23:11,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:23:12,406 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:23:12,406 INFO L284 CfgBuilder]: Removed 75 assume(true) statements. [2019-10-22 11:23:12,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:12 BoogieIcfgContainer [2019-10-22 11:23:12,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:23:12,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:23:12,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:23:12,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:23:12,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:23:10" (1/3) ... [2019-10-22 11:23:12,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f491d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:12, skipping insertion in model container [2019-10-22 11:23:12,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:11" (2/3) ... [2019-10-22 11:23:12,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f491d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:12, skipping insertion in model container [2019-10-22 11:23:12,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:12" (3/3) ... [2019-10-22 11:23:12,418 INFO L109 eAbstractionObserver]: Analyzing ICFG merge_sort-2.i [2019-10-22 11:23:12,426 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:23:12,435 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 118 error locations. [2019-10-22 11:23:12,448 INFO L249 AbstractCegarLoop]: Starting to check reachability of 118 error locations. [2019-10-22 11:23:12,465 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:23:12,466 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 11:23:12,466 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:23:12,466 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:23:12,466 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:23:12,466 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:23:12,466 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:23:12,466 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:23:12,483 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states. [2019-10-22 11:23:12,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 11:23:12,490 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:12,491 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 11:23:12,493 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr77REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr100REQUIRES_VIOLATION, ULTIMATE.startErr111ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr92ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr81REQUIRES_VIOLATION, ULTIMATE.startErr110ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr104REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr85REQUIRES_VIOLATION, ULTIMATE.startErr108REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr93ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr89REQUIRES_VIOLATION, ULTIMATE.startErr112REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr109ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr97REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr101REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr82REQUIRES_VIOLATION, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr105REQUIRES_VIOLATION, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr86REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr90REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr113REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr116ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr75REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr98REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr115ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr117ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr102REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr83REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr106REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr87REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr114ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr91REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr95REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr76REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr99REQUIRES_VIOLATION, ULTIMATE.startErr94ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr80REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr103REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr84REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr107REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr88REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr96REQUIRES_VIOLATION]=== [2019-10-22 11:23:12,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:12,499 INFO L82 PathProgramCache]: Analyzing trace with hash 28728131, now seen corresponding path program 1 times [2019-10-22 11:23:12,509 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:12,509 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1544887418] [2019-10-22 11:23:12,509 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ef65ef4-ad36-4da3-9a12-fc1c93038081/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 11:23:12,761 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:23:12,762 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 11:23:12,766 INFO L168 Benchmark]: Toolchain (without parser) took 2156.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 945.6 MB in the beginning and 949.7 MB in the end (delta: -4.1 MB). Peak memory consumption was 80.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:12,766 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:23:12,767 INFO L168 Benchmark]: CACSL2BoogieTranslator took 557.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -112.6 MB). Peak memory consumption was 29.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:12,767 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.28 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:23:12,769 INFO L168 Benchmark]: Boogie Preprocessor took 50.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:12,769 INFO L168 Benchmark]: RCFGBuilder took 1128.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 969.3 MB in the end (delta: 82.1 MB). Peak memory consumption was 82.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:12,770 INFO L168 Benchmark]: TraceAbstraction took 353.62 ms. Allocated memory is still 1.1 GB. Free memory was 969.3 MB in the beginning and 949.7 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:12,773 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 557.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -112.6 MB). Peak memory consumption was 29.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 60.28 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1128.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 969.3 MB in the end (delta: 82.1 MB). Peak memory consumption was 82.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 353.62 ms. Allocated memory is still 1.1 GB. Free memory was 969.3 MB in the beginning and 949.7 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 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...