./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec14_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec14_product23.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8e3e095c3e35754b69c5b770f69d2f55696576eebdd6e61f09ab7280f663a93f --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 16:41:53,858 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 16:41:53,859 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 16:41:53,889 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 16:41:53,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 16:41:53,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 16:41:53,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 16:41:53,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 16:41:53,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 16:41:53,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 16:41:53,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 16:41:53,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 16:41:53,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 16:41:53,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 16:41:53,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 16:41:53,897 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 16:41:53,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 16:41:53,898 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 16:41:53,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 16:41:53,900 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 16:41:53,901 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 16:41:53,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 16:41:53,902 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 16:41:53,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 16:41:53,904 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 16:41:53,905 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 16:41:53,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 16:41:53,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 16:41:53,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 16:41:53,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 16:41:53,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 16:41:53,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 16:41:53,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 16:41:53,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 16:41:53,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 16:41:53,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 16:41:53,917 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 16:41:53,917 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 16:41:53,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 16:41:53,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 16:41:53,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 16:41:53,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 16:41:53,920 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 16:41:53,935 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 16:41:53,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 16:41:53,937 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 16:41:53,937 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 16:41:53,938 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 16:41:53,938 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 16:41:53,938 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 16:41:53,939 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 16:41:53,939 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 16:41:53,939 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 16:41:53,940 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 16:41:53,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 16:41:53,940 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 16:41:53,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 16:41:53,940 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 16:41:53,940 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 16:41:53,940 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 16:41:53,940 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 16:41:53,941 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 16:41:53,941 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 16:41:53,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 16:41:53,942 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 16:41:53,942 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 16:41:53,942 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 16:41:53,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 16:41:53,943 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 16:41:53,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 16:41:53,943 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 16:41:53,943 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 16:41:53,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 16:41:53,943 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 16:41:53,944 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 16:41:53,944 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 16:41:53,944 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e3e095c3e35754b69c5b770f69d2f55696576eebdd6e61f09ab7280f663a93f [2022-07-19 16:41:54,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 16:41:54,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 16:41:54,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 16:41:54,140 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 16:41:54,141 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 16:41:54,142 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec14_product23.cil.c [2022-07-19 16:41:54,196 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a0f03ae3/5dc34d33d4a942c7a75c63d9f8ba8a39/FLAG3316a9826 [2022-07-19 16:41:54,575 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 16:41:54,576 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product23.cil.c [2022-07-19 16:41:54,592 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a0f03ae3/5dc34d33d4a942c7a75c63d9f8ba8a39/FLAG3316a9826 [2022-07-19 16:41:54,947 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a0f03ae3/5dc34d33d4a942c7a75c63d9f8ba8a39 [2022-07-19 16:41:54,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 16:41:54,950 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 16:41:54,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 16:41:54,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 16:41:54,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 16:41:54,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 04:41:54" (1/1) ... [2022-07-19 16:41:54,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2af1bf0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:41:54, skipping insertion in model container [2022-07-19 16:41:54,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 04:41:54" (1/1) ... [2022-07-19 16:41:54,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 16:41:55,021 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 16:41:55,211 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product23.cil.c[8585,8598] [2022-07-19 16:41:55,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 16:41:55,382 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 16:41:55,413 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product23.cil.c[8585,8598] [2022-07-19 16:41:55,481 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 16:41:55,502 INFO L208 MainTranslator]: Completed translation [2022-07-19 16:41:55,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:41:55 WrapperNode [2022-07-19 16:41:55,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 16:41:55,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 16:41:55,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 16:41:55,504 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 16:41:55,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:41:55" (1/1) ... [2022-07-19 16:41:55,540 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:41:55" (1/1) ... [2022-07-19 16:41:55,579 INFO L137 Inliner]: procedures = 93, calls = 340, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 854 [2022-07-19 16:41:55,580 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 16:41:55,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 16:41:55,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 16:41:55,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 16:41:55,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:41:55" (1/1) ... [2022-07-19 16:41:55,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:41:55" (1/1) ... [2022-07-19 16:41:55,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:41:55" (1/1) ... [2022-07-19 16:41:55,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:41:55" (1/1) ... [2022-07-19 16:41:55,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:41:55" (1/1) ... [2022-07-19 16:41:55,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:41:55" (1/1) ... [2022-07-19 16:41:55,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:41:55" (1/1) ... [2022-07-19 16:41:55,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 16:41:55,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 16:41:55,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 16:41:55,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 16:41:55,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:41:55" (1/1) ... [2022-07-19 16:41:55,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 16:41:55,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:41:55,727 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 16:41:55,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 16:41:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 16:41:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2022-07-19 16:41:55,769 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2022-07-19 16:41:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2022-07-19 16:41:55,769 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2022-07-19 16:41:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2022-07-19 16:41:55,769 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2022-07-19 16:41:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2022-07-19 16:41:55,769 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2022-07-19 16:41:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2022-07-19 16:41:55,770 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2022-07-19 16:41:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2022-07-19 16:41:55,770 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2022-07-19 16:41:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2022-07-19 16:41:55,770 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2022-07-19 16:41:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2022-07-19 16:41:55,770 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2022-07-19 16:41:55,771 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-19 16:41:55,771 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-19 16:41:55,771 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-19 16:41:55,771 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-19 16:41:55,771 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2022-07-19 16:41:55,771 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2022-07-19 16:41:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2022-07-19 16:41:55,772 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2022-07-19 16:41:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2022-07-19 16:41:55,772 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2022-07-19 16:41:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2022-07-19 16:41:55,772 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2022-07-19 16:41:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2022-07-19 16:41:55,772 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2022-07-19 16:41:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2022-07-19 16:41:55,772 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2022-07-19 16:41:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2022-07-19 16:41:55,773 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2022-07-19 16:41:55,773 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2022-07-19 16:41:55,773 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2022-07-19 16:41:55,773 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2022-07-19 16:41:55,773 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2022-07-19 16:41:55,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 16:41:55,773 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2022-07-19 16:41:55,774 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2022-07-19 16:41:55,774 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2022-07-19 16:41:55,774 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2022-07-19 16:41:55,774 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2022-07-19 16:41:55,774 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2022-07-19 16:41:55,774 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2022-07-19 16:41:55,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2022-07-19 16:41:55,774 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2022-07-19 16:41:55,775 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2022-07-19 16:41:55,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 16:41:55,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 16:41:55,776 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2022-07-19 16:41:55,776 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2022-07-19 16:41:55,917 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 16:41:55,933 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 16:41:56,643 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 16:41:56,656 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 16:41:56,657 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-19 16:41:56,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 04:41:56 BoogieIcfgContainer [2022-07-19 16:41:56,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 16:41:56,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 16:41:56,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 16:41:56,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 16:41:56,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 04:41:54" (1/3) ... [2022-07-19 16:41:56,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c647b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 04:41:56, skipping insertion in model container [2022-07-19 16:41:56,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 04:41:55" (2/3) ... [2022-07-19 16:41:56,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c647b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 04:41:56, skipping insertion in model container [2022-07-19 16:41:56,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 04:41:56" (3/3) ... [2022-07-19 16:41:56,667 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product23.cil.c [2022-07-19 16:41:56,679 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 16:41:56,679 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 16:41:56,736 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 16:41:56,742 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4a0b122f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@525e2c70 [2022-07-19 16:41:56,743 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 16:41:56,756 INFO L276 IsEmpty]: Start isEmpty. Operand has 559 states, 433 states have (on average 1.6651270207852193) internal successors, (721), 449 states have internal predecessors, (721), 99 states have call successors, (99), 25 states have call predecessors, (99), 25 states have return successors, (99), 97 states have call predecessors, (99), 99 states have call successors, (99) [2022-07-19 16:41:56,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-19 16:41:56,795 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:41:56,796 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 16:41:56,797 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:41:56,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:41:56,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1816535566, now seen corresponding path program 1 times [2022-07-19 16:41:56,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:41:56,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437371398] [2022-07-19 16:41:56,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:41:56,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:41:56,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:41:57,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:41:57,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:41:57,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:41:57,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:41:57,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:41:57,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:41:57,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-19 16:41:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:41:57,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:41:57,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:41:57,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:41:57,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:41:57,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 16:41:57,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:41:57,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:41:57,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:41:57,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:41:57,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:41:57,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 16:41:57,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:41:57,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-19 16:41:57,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:41:57,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-19 16:41:57,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:41:57,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:41:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:41:57,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-19 16:41:57,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:41:57,240 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-19 16:41:57,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:41:57,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437371398] [2022-07-19 16:41:57,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437371398] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:41:57,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:41:57,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 16:41:57,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066033895] [2022-07-19 16:41:57,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:41:57,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 16:41:57,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:41:57,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 16:41:57,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 16:41:57,273 INFO L87 Difference]: Start difference. First operand has 559 states, 433 states have (on average 1.6651270207852193) internal successors, (721), 449 states have internal predecessors, (721), 99 states have call successors, (99), 25 states have call predecessors, (99), 25 states have return successors, (99), 97 states have call predecessors, (99), 99 states have call successors, (99) Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:00,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:00,415 INFO L93 Difference]: Finished difference Result 1315 states and 2194 transitions. [2022-07-19 16:42:00,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 16:42:00,417 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 103 [2022-07-19 16:42:00,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:00,429 INFO L225 Difference]: With dead ends: 1315 [2022-07-19 16:42:00,429 INFO L226 Difference]: Without dead ends: 752 [2022-07-19 16:42:00,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-19 16:42:00,438 INFO L413 NwaCegarLoop]: 886 mSDtfsCounter, 1380 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 2057 mSolverCounterSat, 437 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1427 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 2494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 437 IncrementalHoareTripleChecker+Valid, 2057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:00,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1427 Valid, 1784 Invalid, 2494 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [437 Valid, 2057 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-19 16:42:00,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2022-07-19 16:42:00,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 554. [2022-07-19 16:42:00,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 429 states have (on average 1.655011655011655) internal successors, (710), 444 states have internal predecessors, (710), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2022-07-19 16:42:00,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 907 transitions. [2022-07-19 16:42:00,553 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 907 transitions. Word has length 103 [2022-07-19 16:42:00,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:00,554 INFO L495 AbstractCegarLoop]: Abstraction has 554 states and 907 transitions. [2022-07-19 16:42:00,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:00,554 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 907 transitions. [2022-07-19 16:42:00,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-19 16:42:00,559 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:00,559 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 16:42:00,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 16:42:00,560 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:00,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:00,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1386883550, now seen corresponding path program 1 times [2022-07-19 16:42:00,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:00,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274592986] [2022-07-19 16:42:00,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:00,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:00,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:00,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:00,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:00,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:00,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:00,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 16:42:00,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:00,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 16:42:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:00,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:00,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:00,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-19 16:42:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:00,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-19 16:42:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:00,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:00,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:00,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:00,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:00,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 16:42:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:00,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-19 16:42:00,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:00,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-19 16:42:00,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:00,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:00,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-19 16:42:00,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:00,754 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-19 16:42:00,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:00,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274592986] [2022-07-19 16:42:00,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274592986] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:00,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:42:00,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 16:42:00,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537667269] [2022-07-19 16:42:00,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:00,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 16:42:00,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:00,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 16:42:00,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 16:42:00,758 INFO L87 Difference]: Start difference. First operand 554 states and 907 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:03,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:03,546 INFO L93 Difference]: Finished difference Result 1289 states and 2121 transitions. [2022-07-19 16:42:03,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 16:42:03,547 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 104 [2022-07-19 16:42:03,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:03,554 INFO L225 Difference]: With dead ends: 1289 [2022-07-19 16:42:03,555 INFO L226 Difference]: Without dead ends: 752 [2022-07-19 16:42:03,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-19 16:42:03,562 INFO L413 NwaCegarLoop]: 873 mSDtfsCounter, 1361 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2049 mSolverCounterSat, 436 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 1722 SdHoareTripleChecker+Invalid, 2485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 436 IncrementalHoareTripleChecker+Valid, 2049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:03,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1408 Valid, 1722 Invalid, 2485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [436 Valid, 2049 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-19 16:42:03,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2022-07-19 16:42:03,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 554. [2022-07-19 16:42:03,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 429 states have (on average 1.6526806526806528) internal successors, (709), 444 states have internal predecessors, (709), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2022-07-19 16:42:03,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 906 transitions. [2022-07-19 16:42:03,644 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 906 transitions. Word has length 104 [2022-07-19 16:42:03,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:03,645 INFO L495 AbstractCegarLoop]: Abstraction has 554 states and 906 transitions. [2022-07-19 16:42:03,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:03,646 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 906 transitions. [2022-07-19 16:42:03,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-19 16:42:03,651 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:03,651 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 16:42:03,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 16:42:03,651 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:03,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:03,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1009573522, now seen corresponding path program 1 times [2022-07-19 16:42:03,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:03,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630713155] [2022-07-19 16:42:03,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:03,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:03,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:03,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:03,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:03,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:03,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-19 16:42:03,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:03,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-19 16:42:03,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:03,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:03,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 16:42:03,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:03,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 16:42:03,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:03,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:03,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:03,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:03,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 16:42:03,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:03,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-19 16:42:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:03,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-19 16:42:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:03,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:03,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-19 16:42:03,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:03,838 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-19 16:42:03,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:03,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630713155] [2022-07-19 16:42:03,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630713155] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:03,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:42:03,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 16:42:03,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543376063] [2022-07-19 16:42:03,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:03,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 16:42:03,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:03,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 16:42:03,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 16:42:03,841 INFO L87 Difference]: Start difference. First operand 554 states and 906 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:06,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:06,616 INFO L93 Difference]: Finished difference Result 1289 states and 2120 transitions. [2022-07-19 16:42:06,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 16:42:06,617 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2022-07-19 16:42:06,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:06,621 INFO L225 Difference]: With dead ends: 1289 [2022-07-19 16:42:06,622 INFO L226 Difference]: Without dead ends: 752 [2022-07-19 16:42:06,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-19 16:42:06,630 INFO L413 NwaCegarLoop]: 881 mSDtfsCounter, 1351 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 2055 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1398 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 2489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 2055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:06,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1398 Valid, 1748 Invalid, 2489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 2055 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-19 16:42:06,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2022-07-19 16:42:06,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 554. [2022-07-19 16:42:06,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 429 states have (on average 1.6503496503496504) internal successors, (708), 444 states have internal predecessors, (708), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2022-07-19 16:42:06,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 905 transitions. [2022-07-19 16:42:06,673 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 905 transitions. Word has length 105 [2022-07-19 16:42:06,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:06,674 INFO L495 AbstractCegarLoop]: Abstraction has 554 states and 905 transitions. [2022-07-19 16:42:06,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:06,674 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 905 transitions. [2022-07-19 16:42:06,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-19 16:42:06,677 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:06,677 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 16:42:06,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 16:42:06,677 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:06,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:06,678 INFO L85 PathProgramCache]: Analyzing trace with hash 2040102174, now seen corresponding path program 1 times [2022-07-19 16:42:06,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:06,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549791914] [2022-07-19 16:42:06,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:06,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:06,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:06,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:06,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:06,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-19 16:42:06,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:06,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 16:42:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:06,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:06,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:06,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 16:42:06,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:06,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-19 16:42:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:06,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:06,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:06,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:06,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 16:42:06,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:06,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 16:42:06,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:06,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-19 16:42:06,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:06,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:06,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-19 16:42:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:06,825 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-19 16:42:06,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:06,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549791914] [2022-07-19 16:42:06,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549791914] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:06,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:42:06,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 16:42:06,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974907047] [2022-07-19 16:42:06,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:06,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 16:42:06,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:06,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 16:42:06,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 16:42:06,827 INFO L87 Difference]: Start difference. First operand 554 states and 905 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:09,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:09,460 INFO L93 Difference]: Finished difference Result 1289 states and 2119 transitions. [2022-07-19 16:42:09,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 16:42:09,461 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 106 [2022-07-19 16:42:09,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:09,464 INFO L225 Difference]: With dead ends: 1289 [2022-07-19 16:42:09,464 INFO L226 Difference]: Without dead ends: 752 [2022-07-19 16:42:09,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-19 16:42:09,467 INFO L413 NwaCegarLoop]: 870 mSDtfsCounter, 1356 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 2049 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1403 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 2484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 2049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:09,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1403 Valid, 1713 Invalid, 2484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 2049 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-19 16:42:09,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2022-07-19 16:42:09,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 554. [2022-07-19 16:42:09,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 429 states have (on average 1.648018648018648) internal successors, (707), 444 states have internal predecessors, (707), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2022-07-19 16:42:09,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 904 transitions. [2022-07-19 16:42:09,501 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 904 transitions. Word has length 106 [2022-07-19 16:42:09,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:09,501 INFO L495 AbstractCegarLoop]: Abstraction has 554 states and 904 transitions. [2022-07-19 16:42:09,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:09,502 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 904 transitions. [2022-07-19 16:42:09,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-19 16:42:09,504 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:09,504 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 16:42:09,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 16:42:09,504 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:09,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:09,505 INFO L85 PathProgramCache]: Analyzing trace with hash 2033767658, now seen corresponding path program 1 times [2022-07-19 16:42:09,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:09,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976369743] [2022-07-19 16:42:09,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:09,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:09,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:09,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:09,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:09,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:09,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-19 16:42:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:09,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-19 16:42:09,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:09,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:09,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:09,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-19 16:42:09,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:09,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-19 16:42:09,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:09,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:09,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:09,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:09,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 16:42:09,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:09,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-19 16:42:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:09,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-19 16:42:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:09,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:09,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-19 16:42:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:09,663 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-19 16:42:09,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:09,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976369743] [2022-07-19 16:42:09,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976369743] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:09,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:42:09,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 16:42:09,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967007331] [2022-07-19 16:42:09,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:09,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 16:42:09,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:09,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 16:42:09,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 16:42:09,666 INFO L87 Difference]: Start difference. First operand 554 states and 904 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:12,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:12,254 INFO L93 Difference]: Finished difference Result 1289 states and 2118 transitions. [2022-07-19 16:42:12,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 16:42:12,255 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 107 [2022-07-19 16:42:12,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:12,258 INFO L225 Difference]: With dead ends: 1289 [2022-07-19 16:42:12,258 INFO L226 Difference]: Without dead ends: 752 [2022-07-19 16:42:12,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-19 16:42:12,261 INFO L413 NwaCegarLoop]: 856 mSDtfsCounter, 1362 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 2045 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1409 SdHoareTripleChecker+Valid, 1670 SdHoareTripleChecker+Invalid, 2480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 2045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:12,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1409 Valid, 1670 Invalid, 2480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 2045 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-19 16:42:12,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2022-07-19 16:42:12,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 554. [2022-07-19 16:42:12,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 429 states have (on average 1.6456876456876457) internal successors, (706), 444 states have internal predecessors, (706), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2022-07-19 16:42:12,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 903 transitions. [2022-07-19 16:42:12,295 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 903 transitions. Word has length 107 [2022-07-19 16:42:12,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:12,296 INFO L495 AbstractCegarLoop]: Abstraction has 554 states and 903 transitions. [2022-07-19 16:42:12,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:12,296 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 903 transitions. [2022-07-19 16:42:12,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-19 16:42:12,298 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:12,298 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 16:42:12,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 16:42:12,299 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:12,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:12,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1780397082, now seen corresponding path program 1 times [2022-07-19 16:42:12,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:12,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244272501] [2022-07-19 16:42:12,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:12,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:12,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:12,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:12,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:12,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 16:42:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:12,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:12,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-19 16:42:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:12,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 16:42:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:12,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:12,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:12,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:12,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 16:42:12,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:12,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-19 16:42:12,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:12,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-19 16:42:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:12,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:12,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:12,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-19 16:42:12,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:12,432 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-19 16:42:12,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:12,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244272501] [2022-07-19 16:42:12,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244272501] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:12,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:42:12,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 16:42:12,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631381978] [2022-07-19 16:42:12,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:12,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 16:42:12,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:12,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 16:42:12,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 16:42:12,434 INFO L87 Difference]: Start difference. First operand 554 states and 903 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:15,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:15,097 INFO L93 Difference]: Finished difference Result 1314 states and 2162 transitions. [2022-07-19 16:42:15,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 16:42:15,098 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2022-07-19 16:42:15,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:15,101 INFO L225 Difference]: With dead ends: 1314 [2022-07-19 16:42:15,101 INFO L226 Difference]: Without dead ends: 781 [2022-07-19 16:42:15,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-07-19 16:42:15,104 INFO L413 NwaCegarLoop]: 840 mSDtfsCounter, 1412 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 2016 mSolverCounterSat, 504 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1459 SdHoareTripleChecker+Valid, 1688 SdHoareTripleChecker+Invalid, 2520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 504 IncrementalHoareTripleChecker+Valid, 2016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:15,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1459 Valid, 1688 Invalid, 2520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [504 Valid, 2016 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-19 16:42:15,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2022-07-19 16:42:15,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 574. [2022-07-19 16:42:15,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 448 states have (on average 1.640625) internal successors, (735), 463 states have internal predecessors, (735), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2022-07-19 16:42:15,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 932 transitions. [2022-07-19 16:42:15,139 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 932 transitions. Word has length 108 [2022-07-19 16:42:15,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:15,140 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 932 transitions. [2022-07-19 16:42:15,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:15,140 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 932 transitions. [2022-07-19 16:42:15,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-07-19 16:42:15,142 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:15,142 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 16:42:15,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 16:42:15,143 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:15,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:15,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1328279333, now seen corresponding path program 1 times [2022-07-19 16:42:15,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:15,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258548389] [2022-07-19 16:42:15,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:15,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:15,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:15,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:15,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:15,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:15,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:15,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 16:42:15,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:15,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:15,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:15,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-19 16:42:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:15,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 16:42:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:15,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:15,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:15,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:15,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 16:42:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:15,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-19 16:42:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:15,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-19 16:42:15,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:15,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:15,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-19 16:42:15,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:15,269 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-19 16:42:15,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:15,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258548389] [2022-07-19 16:42:15,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258548389] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:15,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:42:15,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 16:42:15,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361861870] [2022-07-19 16:42:15,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:15,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 16:42:15,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:15,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 16:42:15,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 16:42:15,271 INFO L87 Difference]: Start difference. First operand 574 states and 932 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:17,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:17,833 INFO L93 Difference]: Finished difference Result 1298 states and 2113 transitions. [2022-07-19 16:42:17,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 16:42:17,833 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2022-07-19 16:42:17,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:17,836 INFO L225 Difference]: With dead ends: 1298 [2022-07-19 16:42:17,836 INFO L226 Difference]: Without dead ends: 781 [2022-07-19 16:42:17,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-07-19 16:42:17,838 INFO L413 NwaCegarLoop]: 833 mSDtfsCounter, 1370 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 2009 mSolverCounterSat, 499 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 1686 SdHoareTripleChecker+Invalid, 2508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 499 IncrementalHoareTripleChecker+Valid, 2009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:17,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1417 Valid, 1686 Invalid, 2508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [499 Valid, 2009 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-19 16:42:17,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2022-07-19 16:42:17,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 574. [2022-07-19 16:42:17,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 448 states have (on average 1.6294642857142858) internal successors, (730), 463 states have internal predecessors, (730), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2022-07-19 16:42:17,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 927 transitions. [2022-07-19 16:42:17,873 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 927 transitions. Word has length 109 [2022-07-19 16:42:17,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:17,874 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 927 transitions. [2022-07-19 16:42:17,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:17,874 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 927 transitions. [2022-07-19 16:42:17,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-19 16:42:17,876 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:17,876 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 16:42:17,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 16:42:17,877 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:17,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:17,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1553712897, now seen corresponding path program 1 times [2022-07-19 16:42:17,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:17,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036622660] [2022-07-19 16:42:17,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:17,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:17,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:17,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:17,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:17,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:17,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:17,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 16:42:17,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:17,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:17,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:17,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 16:42:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:17,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-19 16:42:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:17,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:17,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:17,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 16:42:17,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:18,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-19 16:42:18,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:18,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 16:42:18,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:18,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:18,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:18,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 16:42:18,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:18,016 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-19 16:42:18,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:18,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036622660] [2022-07-19 16:42:18,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036622660] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:18,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:42:18,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 16:42:18,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267664292] [2022-07-19 16:42:18,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:18,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 16:42:18,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:18,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 16:42:18,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 16:42:18,018 INFO L87 Difference]: Start difference. First operand 574 states and 927 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:20,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:20,500 INFO L93 Difference]: Finished difference Result 1298 states and 2108 transitions. [2022-07-19 16:42:20,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 16:42:20,501 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 110 [2022-07-19 16:42:20,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:20,504 INFO L225 Difference]: With dead ends: 1298 [2022-07-19 16:42:20,504 INFO L226 Difference]: Without dead ends: 781 [2022-07-19 16:42:20,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-07-19 16:42:20,507 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 1374 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 1989 mSolverCounterSat, 491 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1421 SdHoareTripleChecker+Valid, 1676 SdHoareTripleChecker+Invalid, 2480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 491 IncrementalHoareTripleChecker+Valid, 1989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:20,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1421 Valid, 1676 Invalid, 2480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [491 Valid, 1989 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-19 16:42:20,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2022-07-19 16:42:20,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 574. [2022-07-19 16:42:20,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 448 states have (on average 1.6183035714285714) internal successors, (725), 463 states have internal predecessors, (725), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2022-07-19 16:42:20,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 922 transitions. [2022-07-19 16:42:20,555 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 922 transitions. Word has length 110 [2022-07-19 16:42:20,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:20,556 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 922 transitions. [2022-07-19 16:42:20,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:20,556 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 922 transitions. [2022-07-19 16:42:20,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-07-19 16:42:20,558 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:20,558 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 16:42:20,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 16:42:20,559 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:20,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:20,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1813012661, now seen corresponding path program 1 times [2022-07-19 16:42:20,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:20,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796697749] [2022-07-19 16:42:20,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:20,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:20,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:20,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:20,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:20,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:20,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:20,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:20,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-19 16:42:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:20,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:20,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-19 16:42:20,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:20,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-19 16:42:20,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:20,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:20,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:20,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 16:42:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:20,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-19 16:42:20,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:20,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 16:42:20,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:20,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:20,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:20,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 16:42:20,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:20,704 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-19 16:42:20,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:20,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796697749] [2022-07-19 16:42:20,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796697749] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:20,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:42:20,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 16:42:20,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200467919] [2022-07-19 16:42:20,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:20,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 16:42:20,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:20,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 16:42:20,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 16:42:20,707 INFO L87 Difference]: Start difference. First operand 574 states and 922 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:23,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:23,277 INFO L93 Difference]: Finished difference Result 1325 states and 2142 transitions. [2022-07-19 16:42:23,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 16:42:23,277 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2022-07-19 16:42:23,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:23,280 INFO L225 Difference]: With dead ends: 1325 [2022-07-19 16:42:23,280 INFO L226 Difference]: Without dead ends: 814 [2022-07-19 16:42:23,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-19 16:42:23,282 INFO L413 NwaCegarLoop]: 849 mSDtfsCounter, 1404 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 1996 mSolverCounterSat, 438 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1451 SdHoareTripleChecker+Valid, 1704 SdHoareTripleChecker+Invalid, 2434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 438 IncrementalHoareTripleChecker+Valid, 1996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:23,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1451 Valid, 1704 Invalid, 2434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [438 Valid, 1996 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-19 16:42:23,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2022-07-19 16:42:23,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 578. [2022-07-19 16:42:23,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 452 states have (on average 1.6128318584070795) internal successors, (729), 467 states have internal predecessors, (729), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2022-07-19 16:42:23,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 926 transitions. [2022-07-19 16:42:23,330 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 926 transitions. Word has length 111 [2022-07-19 16:42:23,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:23,331 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 926 transitions. [2022-07-19 16:42:23,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:23,331 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 926 transitions. [2022-07-19 16:42:23,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-07-19 16:42:23,333 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:23,334 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 16:42:23,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 16:42:23,334 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:23,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:23,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1842564586, now seen corresponding path program 1 times [2022-07-19 16:42:23,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:23,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925330204] [2022-07-19 16:42:23,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:23,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:23,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:23,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:23,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:23,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:23,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-19 16:42:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:23,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:23,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-19 16:42:23,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:23,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-19 16:42:23,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:23,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:23,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:23,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:23,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 16:42:23,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:23,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-19 16:42:23,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:23,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 16:42:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:23,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:23,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:23,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 16:42:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:23,459 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-19 16:42:23,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:23,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925330204] [2022-07-19 16:42:23,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925330204] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:23,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:42:23,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 16:42:23,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130123411] [2022-07-19 16:42:23,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:23,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 16:42:23,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:23,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 16:42:23,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 16:42:23,462 INFO L87 Difference]: Start difference. First operand 578 states and 926 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:25,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:25,895 INFO L93 Difference]: Finished difference Result 1308 states and 2112 transitions. [2022-07-19 16:42:25,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 16:42:25,895 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2022-07-19 16:42:25,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:25,898 INFO L225 Difference]: With dead ends: 1308 [2022-07-19 16:42:25,899 INFO L226 Difference]: Without dead ends: 787 [2022-07-19 16:42:25,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-07-19 16:42:25,901 INFO L413 NwaCegarLoop]: 833 mSDtfsCounter, 1369 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 1983 mSolverCounterSat, 478 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1416 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 2461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 478 IncrementalHoareTripleChecker+Valid, 1983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:25,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1416 Valid, 1687 Invalid, 2461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [478 Valid, 1983 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-19 16:42:25,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2022-07-19 16:42:25,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 578. [2022-07-19 16:42:25,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 452 states have (on average 1.6017699115044248) internal successors, (724), 467 states have internal predecessors, (724), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2022-07-19 16:42:25,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 921 transitions. [2022-07-19 16:42:25,941 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 921 transitions. Word has length 111 [2022-07-19 16:42:25,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:25,941 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 921 transitions. [2022-07-19 16:42:25,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:25,941 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 921 transitions. [2022-07-19 16:42:25,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-19 16:42:25,943 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:25,943 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-19 16:42:25,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-19 16:42:25,944 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:25,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:25,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1552622241, now seen corresponding path program 1 times [2022-07-19 16:42:25,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:25,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328818569] [2022-07-19 16:42:25,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:25,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:26,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:26,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:26,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:26,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:26,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:26,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 16:42:26,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:26,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:26,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:26,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 16:42:26,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:26,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-19 16:42:26,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:26,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:26,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:26,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:26,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:26,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 16:42:26,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:26,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-19 16:42:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:26,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 16:42:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:26,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:26,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:26,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-19 16:42:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:26,099 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-19 16:42:26,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:26,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328818569] [2022-07-19 16:42:26,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328818569] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:26,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:42:26,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 16:42:26,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578612081] [2022-07-19 16:42:26,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:26,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 16:42:26,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:26,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 16:42:26,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 16:42:26,101 INFO L87 Difference]: Start difference. First operand 578 states and 921 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:28,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:28,673 INFO L93 Difference]: Finished difference Result 1333 states and 2141 transitions. [2022-07-19 16:42:28,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 16:42:28,674 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 112 [2022-07-19 16:42:28,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:28,676 INFO L225 Difference]: With dead ends: 1333 [2022-07-19 16:42:28,677 INFO L226 Difference]: Without dead ends: 820 [2022-07-19 16:42:28,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-19 16:42:28,679 INFO L413 NwaCegarLoop]: 834 mSDtfsCounter, 1419 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 1962 mSolverCounterSat, 439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1466 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 2401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 439 IncrementalHoareTripleChecker+Valid, 1962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:28,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1466 Valid, 1678 Invalid, 2401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [439 Valid, 1962 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-19 16:42:28,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2022-07-19 16:42:28,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 584. [2022-07-19 16:42:28,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 458 states have (on average 1.5938864628820961) internal successors, (730), 473 states have internal predecessors, (730), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2022-07-19 16:42:28,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 927 transitions. [2022-07-19 16:42:28,718 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 927 transitions. Word has length 112 [2022-07-19 16:42:28,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:28,719 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 927 transitions. [2022-07-19 16:42:28,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:28,719 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 927 transitions. [2022-07-19 16:42:28,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-19 16:42:28,721 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:28,721 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-19 16:42:28,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-19 16:42:28,721 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:28,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:28,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1998259740, now seen corresponding path program 1 times [2022-07-19 16:42:28,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:28,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953614211] [2022-07-19 16:42:28,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:28,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:28,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:28,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:28,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:28,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 16:42:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:28,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:28,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:28,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 16:42:28,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:28,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-19 16:42:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:28,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:28,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:28,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:28,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 16:42:28,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:28,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-19 16:42:28,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:28,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 16:42:28,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:28,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:28,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:28,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-19 16:42:28,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:28,845 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-19 16:42:28,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:28,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953614211] [2022-07-19 16:42:28,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953614211] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:28,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:42:28,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 16:42:28,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982956325] [2022-07-19 16:42:28,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:28,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 16:42:28,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:28,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 16:42:28,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 16:42:28,847 INFO L87 Difference]: Start difference. First operand 584 states and 927 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:31,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:31,207 INFO L93 Difference]: Finished difference Result 1323 states and 2121 transitions. [2022-07-19 16:42:31,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 16:42:31,208 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 112 [2022-07-19 16:42:31,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:31,211 INFO L225 Difference]: With dead ends: 1323 [2022-07-19 16:42:31,211 INFO L226 Difference]: Without dead ends: 796 [2022-07-19 16:42:31,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-07-19 16:42:31,214 INFO L413 NwaCegarLoop]: 837 mSDtfsCounter, 1364 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 1958 mSolverCounterSat, 471 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 2429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 471 IncrementalHoareTripleChecker+Valid, 1958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:31,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1411 Valid, 1698 Invalid, 2429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [471 Valid, 1958 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-19 16:42:31,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2022-07-19 16:42:31,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 584. [2022-07-19 16:42:31,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 458 states have (on average 1.5829694323144106) internal successors, (725), 473 states have internal predecessors, (725), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2022-07-19 16:42:31,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 922 transitions. [2022-07-19 16:42:31,257 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 922 transitions. Word has length 112 [2022-07-19 16:42:31,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:31,258 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 922 transitions. [2022-07-19 16:42:31,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:31,258 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 922 transitions. [2022-07-19 16:42:31,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-19 16:42:31,260 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:31,260 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-19 16:42:31,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-19 16:42:31,261 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:31,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:31,261 INFO L85 PathProgramCache]: Analyzing trace with hash -322221360, now seen corresponding path program 1 times [2022-07-19 16:42:31,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:31,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716894564] [2022-07-19 16:42:31,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:31,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:31,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:31,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:31,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:31,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:31,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:31,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:31,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-19 16:42:31,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:31,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:31,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:31,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-19 16:42:31,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:31,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-19 16:42:31,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:31,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:31,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:31,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 16:42:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:31,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-19 16:42:31,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:31,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-19 16:42:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:31,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:31,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-19 16:42:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:31,378 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-19 16:42:31,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:31,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716894564] [2022-07-19 16:42:31,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716894564] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:31,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:42:31,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 16:42:31,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610021775] [2022-07-19 16:42:31,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:31,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 16:42:31,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:31,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 16:42:31,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 16:42:31,380 INFO L87 Difference]: Start difference. First operand 584 states and 922 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:33,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:33,873 INFO L93 Difference]: Finished difference Result 1345 states and 2144 transitions. [2022-07-19 16:42:33,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 16:42:33,873 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2022-07-19 16:42:33,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:33,876 INFO L225 Difference]: With dead ends: 1345 [2022-07-19 16:42:33,876 INFO L226 Difference]: Without dead ends: 829 [2022-07-19 16:42:33,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-19 16:42:33,878 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 1400 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 1943 mSolverCounterSat, 442 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1447 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 2385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 442 IncrementalHoareTripleChecker+Valid, 1943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:33,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1447 Valid, 1690 Invalid, 2385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [442 Valid, 1943 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-19 16:42:33,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2022-07-19 16:42:33,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 592. [2022-07-19 16:42:33,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 466 states have (on average 1.5729613733905579) internal successors, (733), 481 states have internal predecessors, (733), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2022-07-19 16:42:33,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 930 transitions. [2022-07-19 16:42:33,920 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 930 transitions. Word has length 113 [2022-07-19 16:42:33,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:33,920 INFO L495 AbstractCegarLoop]: Abstraction has 592 states and 930 transitions. [2022-07-19 16:42:33,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:33,920 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 930 transitions. [2022-07-19 16:42:33,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-19 16:42:33,922 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:33,922 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-19 16:42:33,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-19 16:42:33,922 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:33,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:33,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1738993839, now seen corresponding path program 1 times [2022-07-19 16:42:33,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:33,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078667244] [2022-07-19 16:42:33,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:33,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:33,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:33,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:34,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:34,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:34,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:34,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-19 16:42:34,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:34,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:34,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:34,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-19 16:42:34,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:34,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-19 16:42:34,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:34,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:34,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:34,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:34,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:34,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 16:42:34,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:34,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-19 16:42:34,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:34,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-19 16:42:34,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:34,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:34,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:34,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-19 16:42:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:34,062 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-19 16:42:34,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:34,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078667244] [2022-07-19 16:42:34,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078667244] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:34,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:42:34,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 16:42:34,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235049219] [2022-07-19 16:42:34,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:34,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 16:42:34,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:34,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 16:42:34,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 16:42:34,063 INFO L87 Difference]: Start difference. First operand 592 states and 930 transitions. Second operand has 9 states, 8 states have (on average 8.5) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-19 16:42:37,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:37,369 INFO L93 Difference]: Finished difference Result 1354 states and 2151 transitions. [2022-07-19 16:42:37,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-19 16:42:37,370 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 113 [2022-07-19 16:42:37,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:37,372 INFO L225 Difference]: With dead ends: 1354 [2022-07-19 16:42:37,372 INFO L226 Difference]: Without dead ends: 837 [2022-07-19 16:42:37,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-07-19 16:42:37,374 INFO L413 NwaCegarLoop]: 849 mSDtfsCounter, 1424 mSDsluCounter, 1840 mSDsCounter, 0 mSdLazyCounter, 4291 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1471 SdHoareTripleChecker+Valid, 2689 SdHoareTripleChecker+Invalid, 4735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 4291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:37,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1471 Valid, 2689 Invalid, 4735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 4291 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-19 16:42:37,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2022-07-19 16:42:37,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 603. [2022-07-19 16:42:37,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 474 states have (on average 1.5675105485232068) internal successors, (743), 491 states have internal predecessors, (743), 100 states have call successors, (100), 27 states have call predecessors, (100), 28 states have return successors, (101), 97 states have call predecessors, (101), 99 states have call successors, (101) [2022-07-19 16:42:37,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 944 transitions. [2022-07-19 16:42:37,418 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 944 transitions. Word has length 113 [2022-07-19 16:42:37,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:37,419 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 944 transitions. [2022-07-19 16:42:37,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-19 16:42:37,419 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 944 transitions. [2022-07-19 16:42:37,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-19 16:42:37,422 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:37,422 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-19 16:42:37,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-19 16:42:37,422 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:37,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:37,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1755437904, now seen corresponding path program 1 times [2022-07-19 16:42:37,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:37,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484781814] [2022-07-19 16:42:37,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:37,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:37,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:37,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:37,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:37,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:37,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:37,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:37,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-19 16:42:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:37,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:37,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-19 16:42:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:37,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-19 16:42:37,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:37,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:37,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:37,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:37,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:37,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 16:42:37,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:37,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-19 16:42:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:37,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-19 16:42:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:37,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:37,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-19 16:42:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:37,541 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-19 16:42:37,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:37,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484781814] [2022-07-19 16:42:37,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484781814] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:37,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:42:37,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 16:42:37,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468954997] [2022-07-19 16:42:37,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:37,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 16:42:37,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:37,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 16:42:37,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 16:42:37,542 INFO L87 Difference]: Start difference. First operand 603 states and 944 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:39,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:39,882 INFO L93 Difference]: Finished difference Result 1404 states and 2215 transitions. [2022-07-19 16:42:39,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 16:42:39,883 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2022-07-19 16:42:39,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:39,885 INFO L225 Difference]: With dead ends: 1404 [2022-07-19 16:42:39,885 INFO L226 Difference]: Without dead ends: 798 [2022-07-19 16:42:39,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-19 16:42:39,887 INFO L413 NwaCegarLoop]: 851 mSDtfsCounter, 1329 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 1978 mSolverCounterSat, 437 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 2415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 437 IncrementalHoareTripleChecker+Valid, 1978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:39,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1376 Valid, 1702 Invalid, 2415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [437 Valid, 1978 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-19 16:42:39,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2022-07-19 16:42:39,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 584. [2022-07-19 16:42:39,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 458 states have (on average 1.5720524017467248) internal successors, (720), 473 states have internal predecessors, (720), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2022-07-19 16:42:39,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 917 transitions. [2022-07-19 16:42:39,932 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 917 transitions. Word has length 113 [2022-07-19 16:42:39,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:39,932 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 917 transitions. [2022-07-19 16:42:39,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:39,932 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 917 transitions. [2022-07-19 16:42:39,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-19 16:42:39,934 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:39,934 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-19 16:42:39,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-19 16:42:39,934 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:39,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:39,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1443141306, now seen corresponding path program 1 times [2022-07-19 16:42:39,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:39,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061774457] [2022-07-19 16:42:39,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:39,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:39,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:40,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:40,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:40,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:40,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:40,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:40,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:40,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 16:42:40,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:40,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:40,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:40,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 16:42:40,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:40,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-19 16:42:40,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:40,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:40,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:40,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 16:42:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:40,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-19 16:42:40,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:40,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-19 16:42:40,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:40,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:40,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-19 16:42:40,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:40,049 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-19 16:42:40,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:40,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061774457] [2022-07-19 16:42:40,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061774457] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:40,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:42:40,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 16:42:40,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110534245] [2022-07-19 16:42:40,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:40,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 16:42:40,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:40,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 16:42:40,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 16:42:40,051 INFO L87 Difference]: Start difference. First operand 584 states and 917 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:42,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:42,600 INFO L93 Difference]: Finished difference Result 1351 states and 2140 transitions. [2022-07-19 16:42:42,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 16:42:42,600 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2022-07-19 16:42:42,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:42,603 INFO L225 Difference]: With dead ends: 1351 [2022-07-19 16:42:42,603 INFO L226 Difference]: Without dead ends: 831 [2022-07-19 16:42:42,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-19 16:42:42,606 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 1372 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 1928 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1419 SdHoareTripleChecker+Valid, 1680 SdHoareTripleChecker+Invalid, 2371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 1928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:42,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1419 Valid, 1680 Invalid, 2371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 1928 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-19 16:42:42,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2022-07-19 16:42:42,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 594. [2022-07-19 16:42:42,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 468 states have (on average 1.5598290598290598) internal successors, (730), 483 states have internal predecessors, (730), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2022-07-19 16:42:42,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 927 transitions. [2022-07-19 16:42:42,664 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 927 transitions. Word has length 114 [2022-07-19 16:42:42,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:42,665 INFO L495 AbstractCegarLoop]: Abstraction has 594 states and 927 transitions. [2022-07-19 16:42:42,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:42,665 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 927 transitions. [2022-07-19 16:42:42,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-19 16:42:42,667 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:42,667 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-19 16:42:42,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-19 16:42:42,667 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:42,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:42,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1429498275, now seen corresponding path program 1 times [2022-07-19 16:42:42,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:42,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412998947] [2022-07-19 16:42:42,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:42,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:42,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:42,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:42,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:42,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:42,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:42,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:42,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:42,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:42:42,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:42,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:42,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:42,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-19 16:42:42,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:42,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 16:42:42,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:42,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:42,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:42,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:42,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:42,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 16:42:42,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:42,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-19 16:42:42,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:42,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-19 16:42:42,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:42,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:42,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:42,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-19 16:42:42,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:42,800 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-19 16:42:42,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:42,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412998947] [2022-07-19 16:42:42,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412998947] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:42,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:42:42,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 16:42:42,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726064696] [2022-07-19 16:42:42,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:42,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 16:42:42,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:42,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 16:42:42,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 16:42:42,802 INFO L87 Difference]: Start difference. First operand 594 states and 927 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:45,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:45,285 INFO L93 Difference]: Finished difference Result 1347 states and 2128 transitions. [2022-07-19 16:42:45,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 16:42:45,307 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2022-07-19 16:42:45,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:45,310 INFO L225 Difference]: With dead ends: 1347 [2022-07-19 16:42:45,310 INFO L226 Difference]: Without dead ends: 801 [2022-07-19 16:42:45,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-07-19 16:42:45,312 INFO L413 NwaCegarLoop]: 826 mSDtfsCounter, 1402 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 1907 mSolverCounterSat, 463 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 2370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 463 IncrementalHoareTripleChecker+Valid, 1907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:45,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1449 Valid, 1660 Invalid, 2370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [463 Valid, 1907 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-19 16:42:45,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2022-07-19 16:42:45,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 594. [2022-07-19 16:42:45,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 468 states have (on average 1.5512820512820513) internal successors, (726), 483 states have internal predecessors, (726), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2022-07-19 16:42:45,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 923 transitions. [2022-07-19 16:42:45,369 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 923 transitions. Word has length 115 [2022-07-19 16:42:45,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:45,370 INFO L495 AbstractCegarLoop]: Abstraction has 594 states and 923 transitions. [2022-07-19 16:42:45,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 16:42:45,370 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 923 transitions. [2022-07-19 16:42:45,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-19 16:42:45,371 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:45,371 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-19 16:42:45,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-19 16:42:45,372 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:45,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:45,372 INFO L85 PathProgramCache]: Analyzing trace with hash -906894235, now seen corresponding path program 1 times [2022-07-19 16:42:45,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:45,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612093928] [2022-07-19 16:42:45,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:45,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:45,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:45,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:45,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:45,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:45,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:45,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:45,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:45,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:42:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:45,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:45,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:45,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-19 16:42:45,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:45,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 16:42:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:45,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:45,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:45,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:45,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:45,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 16:42:45,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:45,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-19 16:42:45,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:45,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-19 16:42:45,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:45,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:45,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-19 16:42:45,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:45,499 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-19 16:42:45,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:45,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612093928] [2022-07-19 16:42:45,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612093928] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:42:45,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009315059] [2022-07-19 16:42:45,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:45,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:42:45,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:42:45,501 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:42:45,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 16:42:45,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:45,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 1216 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 16:42:45,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:42:45,821 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-19 16:42:45,821 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:42:45,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009315059] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:45,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:42:45,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2022-07-19 16:42:45,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14898693] [2022-07-19 16:42:45,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:45,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 16:42:45,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:45,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 16:42:45,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-19 16:42:45,822 INFO L87 Difference]: Start difference. First operand 594 states and 923 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-19 16:42:46,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:46,170 INFO L93 Difference]: Finished difference Result 1120 states and 1795 transitions. [2022-07-19 16:42:46,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 16:42:46,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 115 [2022-07-19 16:42:46,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:46,173 INFO L225 Difference]: With dead ends: 1120 [2022-07-19 16:42:46,173 INFO L226 Difference]: Without dead ends: 602 [2022-07-19 16:42:46,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-19 16:42:46,176 INFO L413 NwaCegarLoop]: 837 mSDtfsCounter, 830 mSDsluCounter, 1309 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 2146 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:46,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 2146 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 16:42:46,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2022-07-19 16:42:46,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2022-07-19 16:42:46,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 475 states have (on average 1.5536842105263158) internal successors, (738), 490 states have internal predecessors, (738), 99 states have call successors, (99), 28 states have call predecessors, (99), 27 states have return successors, (99), 96 states have call predecessors, (99), 98 states have call successors, (99) [2022-07-19 16:42:46,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 936 transitions. [2022-07-19 16:42:46,230 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 936 transitions. Word has length 115 [2022-07-19 16:42:46,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:46,230 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 936 transitions. [2022-07-19 16:42:46,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-19 16:42:46,231 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 936 transitions. [2022-07-19 16:42:46,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-19 16:42:46,233 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:46,233 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-19 16:42:46,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-19 16:42:46,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-19 16:42:46,450 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:46,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:46,451 INFO L85 PathProgramCache]: Analyzing trace with hash 766219231, now seen corresponding path program 1 times [2022-07-19 16:42:46,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:46,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638845693] [2022-07-19 16:42:46,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:46,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:46,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:46,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:46,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:46,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:46,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:46,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:46,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:42:46,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:46,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:46,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:46,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-19 16:42:46,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:46,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-19 16:42:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:46,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:46,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:46,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:46,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 16:42:46,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:46,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-19 16:42:46,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:46,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-19 16:42:46,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:46,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:46,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:46,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-19 16:42:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:46,603 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-19 16:42:46,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:46,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638845693] [2022-07-19 16:42:46,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638845693] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:42:46,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054748696] [2022-07-19 16:42:46,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:46,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:42:46,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:42:46,605 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:42:46,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-19 16:42:46,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:46,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 1219 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 16:42:46,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:42:46,903 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-19 16:42:46,903 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:42:46,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054748696] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:46,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:42:46,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2022-07-19 16:42:46,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762705385] [2022-07-19 16:42:46,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:46,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 16:42:46,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:46,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 16:42:46,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-19 16:42:46,905 INFO L87 Difference]: Start difference. First operand 602 states and 936 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-19 16:42:47,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:47,292 INFO L93 Difference]: Finished difference Result 1136 states and 1818 transitions. [2022-07-19 16:42:47,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 16:42:47,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 118 [2022-07-19 16:42:47,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:47,295 INFO L225 Difference]: With dead ends: 1136 [2022-07-19 16:42:47,295 INFO L226 Difference]: Without dead ends: 610 [2022-07-19 16:42:47,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-19 16:42:47,297 INFO L413 NwaCegarLoop]: 837 mSDtfsCounter, 828 mSDsluCounter, 1309 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 2146 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:47,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 2146 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 16:42:47,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-07-19 16:42:47,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 610. [2022-07-19 16:42:47,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 482 states have (on average 1.5560165975103735) internal successors, (750), 497 states have internal predecessors, (750), 99 states have call successors, (99), 29 states have call predecessors, (99), 28 states have return successors, (100), 96 states have call predecessors, (100), 98 states have call successors, (100) [2022-07-19 16:42:47,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 949 transitions. [2022-07-19 16:42:47,345 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 949 transitions. Word has length 118 [2022-07-19 16:42:47,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:47,346 INFO L495 AbstractCegarLoop]: Abstraction has 610 states and 949 transitions. [2022-07-19 16:42:47,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-19 16:42:47,346 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 949 transitions. [2022-07-19 16:42:47,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-07-19 16:42:47,347 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:47,347 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-19 16:42:47,365 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-19 16:42:47,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:42:47,565 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:47,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:47,565 INFO L85 PathProgramCache]: Analyzing trace with hash -35541343, now seen corresponding path program 1 times [2022-07-19 16:42:47,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:47,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661241053] [2022-07-19 16:42:47,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:47,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:47,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:47,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:47,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:47,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:47,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:47,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:47,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:42:47,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:47,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:47,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:47,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 16:42:47,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:47,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-19 16:42:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:47,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:47,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:47,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:47,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-19 16:42:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:47,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 16:42:47,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:47,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-19 16:42:47,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:47,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:47,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-19 16:42:47,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:47,712 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-19 16:42:47,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:47,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661241053] [2022-07-19 16:42:47,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661241053] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:42:47,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183169398] [2022-07-19 16:42:47,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:47,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:42:47,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:42:47,714 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:42:47,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-19 16:42:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:47,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 16:42:47,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:42:47,983 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-19 16:42:47,984 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:42:47,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183169398] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:48,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:42:48,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2022-07-19 16:42:48,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115331985] [2022-07-19 16:42:48,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:48,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 16:42:48,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:48,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 16:42:48,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-19 16:42:48,006 INFO L87 Difference]: Start difference. First operand 610 states and 949 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-19 16:42:48,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:48,396 INFO L93 Difference]: Finished difference Result 1152 states and 1841 transitions. [2022-07-19 16:42:48,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 16:42:48,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2022-07-19 16:42:48,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:48,399 INFO L225 Difference]: With dead ends: 1152 [2022-07-19 16:42:48,399 INFO L226 Difference]: Without dead ends: 618 [2022-07-19 16:42:48,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-19 16:42:48,401 INFO L413 NwaCegarLoop]: 837 mSDtfsCounter, 807 mSDsluCounter, 1309 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 2146 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:48,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 2146 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 16:42:48,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2022-07-19 16:42:48,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 618. [2022-07-19 16:42:48,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 489 states have (on average 1.5582822085889572) internal successors, (762), 504 states have internal predecessors, (762), 99 states have call successors, (99), 30 states have call predecessors, (99), 29 states have return successors, (101), 96 states have call predecessors, (101), 98 states have call successors, (101) [2022-07-19 16:42:48,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 962 transitions. [2022-07-19 16:42:48,450 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 962 transitions. Word has length 121 [2022-07-19 16:42:48,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:48,450 INFO L495 AbstractCegarLoop]: Abstraction has 618 states and 962 transitions. [2022-07-19 16:42:48,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-19 16:42:48,450 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 962 transitions. [2022-07-19 16:42:48,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-19 16:42:48,451 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:48,451 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-19 16:42:48,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-19 16:42:48,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:42:48,670 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:48,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:48,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1250286445, now seen corresponding path program 1 times [2022-07-19 16:42:48,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:48,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215096028] [2022-07-19 16:42:48,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:48,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:48,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:48,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:48,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:48,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:48,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:48,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:48,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:48,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:42:48,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:48,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:48,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 16:42:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:48,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 16:42:48,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:48,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:48,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:48,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:48,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 16:42:48,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:48,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-19 16:42:48,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:48,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-19 16:42:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:48,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:48,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:48,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-19 16:42:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:48,807 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-19 16:42:48,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:48,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215096028] [2022-07-19 16:42:48,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215096028] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:42:48,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398485010] [2022-07-19 16:42:48,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:48,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:42:48,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:42:48,820 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:42:48,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-19 16:42:48,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:48,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 1225 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 16:42:49,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:42:49,100 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-19 16:42:49,100 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:42:49,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398485010] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:49,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:42:49,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2022-07-19 16:42:49,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250459286] [2022-07-19 16:42:49,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:49,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 16:42:49,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:49,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 16:42:49,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-19 16:42:49,101 INFO L87 Difference]: Start difference. First operand 618 states and 962 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-19 16:42:49,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:49,473 INFO L93 Difference]: Finished difference Result 1168 states and 1864 transitions. [2022-07-19 16:42:49,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 16:42:49,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2022-07-19 16:42:49,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:49,476 INFO L225 Difference]: With dead ends: 1168 [2022-07-19 16:42:49,476 INFO L226 Difference]: Without dead ends: 626 [2022-07-19 16:42:49,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-19 16:42:49,478 INFO L413 NwaCegarLoop]: 837 mSDtfsCounter, 824 mSDsluCounter, 1309 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 2146 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:49,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 2146 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 16:42:49,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2022-07-19 16:42:49,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 626. [2022-07-19 16:42:49,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 496 states have (on average 1.560483870967742) internal successors, (774), 511 states have internal predecessors, (774), 99 states have call successors, (99), 31 states have call predecessors, (99), 30 states have return successors, (102), 96 states have call predecessors, (102), 98 states have call successors, (102) [2022-07-19 16:42:49,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 975 transitions. [2022-07-19 16:42:49,526 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 975 transitions. Word has length 124 [2022-07-19 16:42:49,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:49,526 INFO L495 AbstractCegarLoop]: Abstraction has 626 states and 975 transitions. [2022-07-19 16:42:49,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-19 16:42:49,526 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 975 transitions. [2022-07-19 16:42:49,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-19 16:42:49,528 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:49,528 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-19 16:42:49,545 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-07-19 16:42:49,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:42:49,743 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:49,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:49,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1296975139, now seen corresponding path program 1 times [2022-07-19 16:42:49,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:49,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24444242] [2022-07-19 16:42:49,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:49,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:49,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:49,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:49,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:49,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:49,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:49,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:49,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:49,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:42:49,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:49,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:49,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:49,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-19 16:42:49,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:49,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 16:42:49,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:49,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:49,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:49,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:49,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:42:49,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:49,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-19 16:42:49,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:49,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 16:42:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:49,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:49,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-19 16:42:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:49,947 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-07-19 16:42:49,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:49,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24444242] [2022-07-19 16:42:49,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24444242] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:42:49,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465480619] [2022-07-19 16:42:49,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:49,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:42:49,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:42:49,964 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:42:49,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-19 16:42:50,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:50,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 1228 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-19 16:42:50,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:42:50,233 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-19 16:42:50,233 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:42:50,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465480619] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:50,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:42:50,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-07-19 16:42:50,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358642784] [2022-07-19 16:42:50,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:50,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 16:42:50,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:50,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 16:42:50,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-07-19 16:42:50,234 INFO L87 Difference]: Start difference. First operand 626 states and 975 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-19 16:42:50,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:50,609 INFO L93 Difference]: Finished difference Result 1732 states and 2791 transitions. [2022-07-19 16:42:50,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 16:42:50,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2022-07-19 16:42:50,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:50,615 INFO L225 Difference]: With dead ends: 1732 [2022-07-19 16:42:50,615 INFO L226 Difference]: Without dead ends: 1182 [2022-07-19 16:42:50,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2022-07-19 16:42:50,617 INFO L413 NwaCegarLoop]: 991 mSDtfsCounter, 800 mSDsluCounter, 2579 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 800 SdHoareTripleChecker+Valid, 3570 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:50,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [800 Valid, 3570 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 16:42:50,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1182 states. [2022-07-19 16:42:50,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1182 to 1174. [2022-07-19 16:42:50,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1174 states, 922 states have (on average 1.5845986984815619) internal successors, (1461), 953 states have internal predecessors, (1461), 192 states have call successors, (192), 59 states have call predecessors, (192), 59 states have return successors, (218), 187 states have call predecessors, (218), 190 states have call successors, (218) [2022-07-19 16:42:50,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1871 transitions. [2022-07-19 16:42:50,713 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1871 transitions. Word has length 127 [2022-07-19 16:42:50,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:50,714 INFO L495 AbstractCegarLoop]: Abstraction has 1174 states and 1871 transitions. [2022-07-19 16:42:50,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-19 16:42:50,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1871 transitions. [2022-07-19 16:42:50,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-07-19 16:42:50,715 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:50,715 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-19 16:42:50,733 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-19 16:42:50,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-07-19 16:42:50,927 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:50,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:50,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1015738056, now seen corresponding path program 1 times [2022-07-19 16:42:50,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:50,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103673377] [2022-07-19 16:42:50,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:50,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:50,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:51,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:51,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:51,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:42:51,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:51,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-19 16:42:51,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 16:42:51,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:51,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:42:51,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-19 16:42:51,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 16:42:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-19 16:42:51,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-19 16:42:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,137 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-07-19 16:42:51,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:51,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103673377] [2022-07-19 16:42:51,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103673377] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:42:51,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195675254] [2022-07-19 16:42:51,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:51,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:42:51,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:42:51,139 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:42:51,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-19 16:42:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 1245 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 16:42:51,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:42:51,342 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-19 16:42:51,342 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:42:51,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195675254] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:51,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:42:51,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2022-07-19 16:42:51,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177731788] [2022-07-19 16:42:51,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:51,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 16:42:51,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:51,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 16:42:51,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-19 16:42:51,343 INFO L87 Difference]: Start difference. First operand 1174 states and 1871 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 16:42:51,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:51,497 INFO L93 Difference]: Finished difference Result 2813 states and 4568 transitions. [2022-07-19 16:42:51,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 16:42:51,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2022-07-19 16:42:51,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:51,503 INFO L225 Difference]: With dead ends: 2813 [2022-07-19 16:42:51,503 INFO L226 Difference]: Without dead ends: 1716 [2022-07-19 16:42:51,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-19 16:42:51,508 INFO L413 NwaCegarLoop]: 1649 mSDtfsCounter, 816 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 2516 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:51,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 2516 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 16:42:51,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2022-07-19 16:42:51,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1174. [2022-07-19 16:42:51,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1174 states, 922 states have (on average 1.5835140997830803) internal successors, (1460), 953 states have internal predecessors, (1460), 192 states have call successors, (192), 59 states have call predecessors, (192), 59 states have return successors, (218), 187 states have call predecessors, (218), 190 states have call successors, (218) [2022-07-19 16:42:51,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1870 transitions. [2022-07-19 16:42:51,609 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1870 transitions. Word has length 132 [2022-07-19 16:42:51,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:51,609 INFO L495 AbstractCegarLoop]: Abstraction has 1174 states and 1870 transitions. [2022-07-19 16:42:51,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 16:42:51,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1870 transitions. [2022-07-19 16:42:51,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-07-19 16:42:51,611 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:51,611 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-19 16:42:51,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-19 16:42:51,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:42:51,813 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:51,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:51,814 INFO L85 PathProgramCache]: Analyzing trace with hash -314138182, now seen corresponding path program 1 times [2022-07-19 16:42:51,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:51,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786300010] [2022-07-19 16:42:51,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:51,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:51,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:51,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:51,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:51,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:42:51,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:51,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-19 16:42:51,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 16:42:51,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:51,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:52,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:52,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:42:52,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:52,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-19 16:42:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:52,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 16:42:52,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:52,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-19 16:42:52,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:52,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:52,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:52,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-19 16:42:52,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:52,015 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-07-19 16:42:52,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:52,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786300010] [2022-07-19 16:42:52,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786300010] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:42:52,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854648717] [2022-07-19 16:42:52,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:52,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:42:52,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:42:52,017 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:42:52,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-19 16:42:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:52,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 1244 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-19 16:42:52,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:42:52,303 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-19 16:42:52,304 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:42:52,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854648717] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:52,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:42:52,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-07-19 16:42:52,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089179812] [2022-07-19 16:42:52,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:52,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 16:42:52,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:52,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 16:42:52,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-07-19 16:42:52,305 INFO L87 Difference]: Start difference. First operand 1174 states and 1870 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 16:42:52,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:52,484 INFO L93 Difference]: Finished difference Result 2932 states and 4755 transitions. [2022-07-19 16:42:52,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 16:42:52,484 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2022-07-19 16:42:52,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:52,493 INFO L225 Difference]: With dead ends: 2932 [2022-07-19 16:42:52,493 INFO L226 Difference]: Without dead ends: 1836 [2022-07-19 16:42:52,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-07-19 16:42:52,498 INFO L413 NwaCegarLoop]: 1018 mSDtfsCounter, 393 mSDsluCounter, 2911 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 3929 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:52,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 3929 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 16:42:52,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2022-07-19 16:42:52,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1824. [2022-07-19 16:42:52,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1824 states, 1436 states have (on average 1.5605849582172702) internal successors, (2241), 1471 states have internal predecessors, (2241), 288 states have call successors, (288), 99 states have call predecessors, (288), 99 states have return successors, (365), 279 states have call predecessors, (365), 284 states have call successors, (365) [2022-07-19 16:42:52,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 2894 transitions. [2022-07-19 16:42:52,659 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 2894 transitions. Word has length 132 [2022-07-19 16:42:52,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:52,659 INFO L495 AbstractCegarLoop]: Abstraction has 1824 states and 2894 transitions. [2022-07-19 16:42:52,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 16:42:52,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 2894 transitions. [2022-07-19 16:42:52,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-07-19 16:42:52,662 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:52,662 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-19 16:42:52,680 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-07-19 16:42:52,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:42:52,862 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:52,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:52,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1530291908, now seen corresponding path program 1 times [2022-07-19 16:42:52,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:52,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014654332] [2022-07-19 16:42:52,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:52,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:52,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:52,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:52,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:52,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:52,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:42:53,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-19 16:42:53,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 16:42:53,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:53,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:42:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-19 16:42:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 16:42:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-19 16:42:53,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-19 16:42:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,064 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-07-19 16:42:53,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:53,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014654332] [2022-07-19 16:42:53,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014654332] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:42:53,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260537071] [2022-07-19 16:42:53,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:53,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:42:53,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:42:53,066 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:42:53,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-19 16:42:53,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-19 16:42:53,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:42:53,295 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-19 16:42:53,295 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:42:53,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260537071] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:53,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:42:53,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [12] total 13 [2022-07-19 16:42:53,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413583716] [2022-07-19 16:42:53,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:53,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 16:42:53,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:53,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 16:42:53,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-19 16:42:53,297 INFO L87 Difference]: Start difference. First operand 1824 states and 2894 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 16:42:53,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:53,464 INFO L93 Difference]: Finished difference Result 3289 states and 5214 transitions. [2022-07-19 16:42:53,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 16:42:53,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2022-07-19 16:42:53,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:53,470 INFO L225 Difference]: With dead ends: 3289 [2022-07-19 16:42:53,470 INFO L226 Difference]: Without dead ends: 1543 [2022-07-19 16:42:53,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-19 16:42:53,476 INFO L413 NwaCegarLoop]: 973 mSDtfsCounter, 567 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 1403 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:53,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 1403 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 16:42:53,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2022-07-19 16:42:53,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1543. [2022-07-19 16:42:53,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1214 states have (on average 1.5370675453047775) internal successors, (1866), 1241 states have internal predecessors, (1866), 241 states have call successors, (241), 89 states have call predecessors, (241), 87 states have return successors, (296), 236 states have call predecessors, (296), 237 states have call successors, (296) [2022-07-19 16:42:53,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2403 transitions. [2022-07-19 16:42:53,617 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2403 transitions. Word has length 132 [2022-07-19 16:42:53,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:53,617 INFO L495 AbstractCegarLoop]: Abstraction has 1543 states and 2403 transitions. [2022-07-19 16:42:53,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 16:42:53,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2403 transitions. [2022-07-19 16:42:53,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-07-19 16:42:53,620 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:53,620 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 16:42:53,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-19 16:42:53,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-07-19 16:42:53,836 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:53,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:53,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1361697994, now seen corresponding path program 1 times [2022-07-19 16:42:53,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:53,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576242797] [2022-07-19 16:42:53,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:53,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:53,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:53,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:53,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:42:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:53,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-19 16:42:53,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-19 16:42:53,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-19 16:42:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 16:42:53,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-19 16:42:53,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-19 16:42:53,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:53,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-19 16:42:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:54,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-19 16:42:54,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:54,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-19 16:42:54,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:54,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:54,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:54,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-19 16:42:54,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:54,010 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-07-19 16:42:54,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:54,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576242797] [2022-07-19 16:42:54,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576242797] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:42:54,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687295781] [2022-07-19 16:42:54,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:54,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:42:54,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:42:54,012 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:42:54,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-19 16:42:54,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:54,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 1336 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 16:42:54,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:42:54,238 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-07-19 16:42:54,239 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:42:54,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687295781] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:54,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:42:54,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-07-19 16:42:54,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463827579] [2022-07-19 16:42:54,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:54,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 16:42:54,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:54,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 16:42:54,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-19 16:42:54,240 INFO L87 Difference]: Start difference. First operand 1543 states and 2403 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-19 16:42:54,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:54,466 INFO L93 Difference]: Finished difference Result 3086 states and 4878 transitions. [2022-07-19 16:42:54,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 16:42:54,467 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 155 [2022-07-19 16:42:54,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:54,472 INFO L225 Difference]: With dead ends: 3086 [2022-07-19 16:42:54,472 INFO L226 Difference]: Without dead ends: 1621 [2022-07-19 16:42:54,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-07-19 16:42:54,477 INFO L413 NwaCegarLoop]: 801 mSDtfsCounter, 213 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2379 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:54,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 2379 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 16:42:54,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1621 states. [2022-07-19 16:42:54,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1621 to 1621. [2022-07-19 16:42:54,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1621 states, 1290 states have (on average 1.5596899224806202) internal successors, (2012), 1317 states have internal predecessors, (2012), 241 states have call successors, (241), 91 states have call predecessors, (241), 89 states have return successors, (296), 236 states have call predecessors, (296), 237 states have call successors, (296) [2022-07-19 16:42:54,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1621 states to 1621 states and 2549 transitions. [2022-07-19 16:42:54,602 INFO L78 Accepts]: Start accepts. Automaton has 1621 states and 2549 transitions. Word has length 155 [2022-07-19 16:42:54,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:54,603 INFO L495 AbstractCegarLoop]: Abstraction has 1621 states and 2549 transitions. [2022-07-19 16:42:54,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-19 16:42:54,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1621 states and 2549 transitions. [2022-07-19 16:42:54,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-07-19 16:42:54,605 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:54,605 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 16:42:54,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-19 16:42:54,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-07-19 16:42:54,821 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:54,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:54,822 INFO L85 PathProgramCache]: Analyzing trace with hash -394765468, now seen corresponding path program 1 times [2022-07-19 16:42:54,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:54,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101574808] [2022-07-19 16:42:54,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:54,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:54,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:54,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:54,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:54,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:54,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:42:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:54,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:54,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:54,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-19 16:42:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:54,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-19 16:42:54,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:54,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-19 16:42:54,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:54,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 16:42:54,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:54,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-19 16:42:54,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:54,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-19 16:42:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:54,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-19 16:42:54,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:54,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-19 16:42:54,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:54,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-19 16:42:54,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:54,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:54,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:54,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-19 16:42:54,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:54,977 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-07-19 16:42:54,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:54,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101574808] [2022-07-19 16:42:54,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101574808] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:42:54,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880150930] [2022-07-19 16:42:54,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:54,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:42:54,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:42:54,978 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:42:54,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-19 16:42:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:55,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 1341 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 16:42:55,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:42:55,177 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-19 16:42:55,177 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:42:55,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [880150930] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:55,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:42:55,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-07-19 16:42:55,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053521662] [2022-07-19 16:42:55,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:55,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 16:42:55,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:55,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 16:42:55,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-19 16:42:55,179 INFO L87 Difference]: Start difference. First operand 1621 states and 2549 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-19 16:42:55,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:55,403 INFO L93 Difference]: Finished difference Result 3242 states and 5168 transitions. [2022-07-19 16:42:55,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 16:42:55,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 160 [2022-07-19 16:42:55,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:55,409 INFO L225 Difference]: With dead ends: 3242 [2022-07-19 16:42:55,409 INFO L226 Difference]: Without dead ends: 1699 [2022-07-19 16:42:55,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-07-19 16:42:55,414 INFO L413 NwaCegarLoop]: 801 mSDtfsCounter, 211 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2379 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:55,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2379 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 16:42:55,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2022-07-19 16:42:55,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1699. [2022-07-19 16:42:55,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1366 states have (on average 1.5797950219619326) internal successors, (2158), 1393 states have internal predecessors, (2158), 241 states have call successors, (241), 93 states have call predecessors, (241), 91 states have return successors, (296), 236 states have call predecessors, (296), 237 states have call successors, (296) [2022-07-19 16:42:55,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2695 transitions. [2022-07-19 16:42:55,538 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2695 transitions. Word has length 160 [2022-07-19 16:42:55,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:55,539 INFO L495 AbstractCegarLoop]: Abstraction has 1699 states and 2695 transitions. [2022-07-19 16:42:55,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-19 16:42:55,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2695 transitions. [2022-07-19 16:42:55,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-07-19 16:42:55,541 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:55,541 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 16:42:55,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-19 16:42:55,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-07-19 16:42:55,742 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:55,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:55,742 INFO L85 PathProgramCache]: Analyzing trace with hash 718699668, now seen corresponding path program 1 times [2022-07-19 16:42:55,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:55,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935807317] [2022-07-19 16:42:55,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:55,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:55,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:55,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:55,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:55,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:55,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:55,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:55,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:42:55,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:55,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:55,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:55,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-19 16:42:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:55,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-19 16:42:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:55,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-19 16:42:55,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:55,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 16:42:55,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:55,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-19 16:42:55,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:55,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-19 16:42:55,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:55,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-19 16:42:55,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:55,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-19 16:42:55,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:55,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-19 16:42:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:55,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:55,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-19 16:42:55,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:55,926 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-07-19 16:42:55,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:55,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935807317] [2022-07-19 16:42:55,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935807317] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:42:55,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502046762] [2022-07-19 16:42:55,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:55,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:42:55,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:42:55,928 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:42:55,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-19 16:42:56,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:56,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 1345 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 16:42:56,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:42:56,151 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-19 16:42:56,151 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:42:56,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502046762] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:56,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:42:56,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-07-19 16:42:56,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812474417] [2022-07-19 16:42:56,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:56,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 16:42:56,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:56,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 16:42:56,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-19 16:42:56,153 INFO L87 Difference]: Start difference. First operand 1699 states and 2695 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-19 16:42:56,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:56,357 INFO L93 Difference]: Finished difference Result 3398 states and 5458 transitions. [2022-07-19 16:42:56,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 16:42:56,358 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 164 [2022-07-19 16:42:56,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:56,363 INFO L225 Difference]: With dead ends: 3398 [2022-07-19 16:42:56,364 INFO L226 Difference]: Without dead ends: 1777 [2022-07-19 16:42:56,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-07-19 16:42:56,368 INFO L413 NwaCegarLoop]: 801 mSDtfsCounter, 209 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2379 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:56,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 2379 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 16:42:56,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1777 states. [2022-07-19 16:42:56,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1777 to 1777. [2022-07-19 16:42:56,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1777 states, 1442 states have (on average 1.5977808599167822) internal successors, (2304), 1469 states have internal predecessors, (2304), 241 states have call successors, (241), 95 states have call predecessors, (241), 93 states have return successors, (296), 236 states have call predecessors, (296), 237 states have call successors, (296) [2022-07-19 16:42:56,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1777 states to 1777 states and 2841 transitions. [2022-07-19 16:42:56,494 INFO L78 Accepts]: Start accepts. Automaton has 1777 states and 2841 transitions. Word has length 164 [2022-07-19 16:42:56,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:56,495 INFO L495 AbstractCegarLoop]: Abstraction has 1777 states and 2841 transitions. [2022-07-19 16:42:56,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-19 16:42:56,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1777 states and 2841 transitions. [2022-07-19 16:42:56,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-19 16:42:56,498 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:56,498 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 16:42:56,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-19 16:42:56,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-07-19 16:42:56,725 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:56,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:56,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1639074902, now seen corresponding path program 1 times [2022-07-19 16:42:56,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:56,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459325077] [2022-07-19 16:42:56,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:56,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:56,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:56,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:56,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:56,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:56,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:56,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:42:56,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:56,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:56,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-19 16:42:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:56,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-19 16:42:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:56,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-19 16:42:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:56,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 16:42:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:56,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-19 16:42:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:56,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-19 16:42:56,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:56,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-19 16:42:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:56,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-19 16:42:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:56,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-19 16:42:56,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:56,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:56,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:56,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-19 16:42:56,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:56,933 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-19 16:42:56,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:56,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459325077] [2022-07-19 16:42:56,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459325077] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:42:56,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483066627] [2022-07-19 16:42:56,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:56,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:42:56,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:42:56,934 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:42:56,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-19 16:42:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:57,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 1348 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 16:42:57,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:42:57,148 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-07-19 16:42:57,149 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:42:57,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483066627] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:57,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:42:57,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-07-19 16:42:57,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761582567] [2022-07-19 16:42:57,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:57,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 16:42:57,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:57,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 16:42:57,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-19 16:42:57,151 INFO L87 Difference]: Start difference. First operand 1777 states and 2841 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-19 16:42:57,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:57,378 INFO L93 Difference]: Finished difference Result 3554 states and 5748 transitions. [2022-07-19 16:42:57,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 16:42:57,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 167 [2022-07-19 16:42:57,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:57,385 INFO L225 Difference]: With dead ends: 3554 [2022-07-19 16:42:57,385 INFO L226 Difference]: Without dead ends: 1855 [2022-07-19 16:42:57,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-07-19 16:42:57,390 INFO L413 NwaCegarLoop]: 801 mSDtfsCounter, 207 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2379 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:57,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 2379 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 16:42:57,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1855 states. [2022-07-19 16:42:57,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1855 to 1855. [2022-07-19 16:42:57,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1855 states, 1518 states have (on average 1.613965744400527) internal successors, (2450), 1545 states have internal predecessors, (2450), 241 states have call successors, (241), 97 states have call predecessors, (241), 95 states have return successors, (296), 236 states have call predecessors, (296), 237 states have call successors, (296) [2022-07-19 16:42:57,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1855 states to 1855 states and 2987 transitions. [2022-07-19 16:42:57,516 INFO L78 Accepts]: Start accepts. Automaton has 1855 states and 2987 transitions. Word has length 167 [2022-07-19 16:42:57,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:57,517 INFO L495 AbstractCegarLoop]: Abstraction has 1855 states and 2987 transitions. [2022-07-19 16:42:57,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-19 16:42:57,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1855 states and 2987 transitions. [2022-07-19 16:42:57,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-19 16:42:57,520 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:57,520 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 16:42:57,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-19 16:42:57,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-07-19 16:42:57,720 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:57,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:57,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1560627322, now seen corresponding path program 1 times [2022-07-19 16:42:57,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:57,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633180218] [2022-07-19 16:42:57,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:57,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:57,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:57,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:57,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:57,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:57,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:57,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:42:57,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:57,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:57,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:57,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-19 16:42:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:57,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-19 16:42:57,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:57,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-19 16:42:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:57,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 16:42:57,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:57,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-19 16:42:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:57,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-19 16:42:57,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:57,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-19 16:42:57,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:57,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-19 16:42:57,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:57,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 16:42:57,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:57,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:57,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:57,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-19 16:42:57,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:57,925 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-07-19 16:42:57,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:57,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633180218] [2022-07-19 16:42:57,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633180218] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:42:57,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453384873] [2022-07-19 16:42:57,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:57,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:42:57,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:42:57,926 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:42:57,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-19 16:42:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:58,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 1350 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 16:42:58,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:42:58,123 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-07-19 16:42:58,123 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:42:58,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453384873] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:58,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:42:58,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-07-19 16:42:58,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625239084] [2022-07-19 16:42:58,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:58,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 16:42:58,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:58,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 16:42:58,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-19 16:42:58,124 INFO L87 Difference]: Start difference. First operand 1855 states and 2987 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-19 16:42:58,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:58,336 INFO L93 Difference]: Finished difference Result 3710 states and 6038 transitions. [2022-07-19 16:42:58,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 16:42:58,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 169 [2022-07-19 16:42:58,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:58,343 INFO L225 Difference]: With dead ends: 3710 [2022-07-19 16:42:58,343 INFO L226 Difference]: Without dead ends: 1933 [2022-07-19 16:42:58,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-07-19 16:42:58,349 INFO L413 NwaCegarLoop]: 801 mSDtfsCounter, 205 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2379 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:58,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 2379 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 16:42:58,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1933 states. [2022-07-19 16:42:58,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1933 to 1933. [2022-07-19 16:42:58,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1933 states, 1594 states have (on average 1.6286072772898368) internal successors, (2596), 1621 states have internal predecessors, (2596), 241 states have call successors, (241), 99 states have call predecessors, (241), 97 states have return successors, (296), 236 states have call predecessors, (296), 237 states have call successors, (296) [2022-07-19 16:42:58,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1933 states to 1933 states and 3133 transitions. [2022-07-19 16:42:58,476 INFO L78 Accepts]: Start accepts. Automaton has 1933 states and 3133 transitions. Word has length 169 [2022-07-19 16:42:58,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:58,476 INFO L495 AbstractCegarLoop]: Abstraction has 1933 states and 3133 transitions. [2022-07-19 16:42:58,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-19 16:42:58,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1933 states and 3133 transitions. [2022-07-19 16:42:58,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-19 16:42:58,479 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:58,479 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 16:42:58,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-19 16:42:58,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:42:58,698 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:58,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:58,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1589598871, now seen corresponding path program 1 times [2022-07-19 16:42:58,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:58,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145955833] [2022-07-19 16:42:58,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:58,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:58,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:58,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:58,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:58,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:58,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:58,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:42:58,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:58,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:58,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:58,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-19 16:42:58,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:58,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-19 16:42:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:58,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-19 16:42:58,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:58,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 16:42:58,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:58,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-19 16:42:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:58,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-19 16:42:58,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:58,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-19 16:42:58,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:58,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-19 16:42:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:58,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 16:42:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:58,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:58,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-19 16:42:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:58,894 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-07-19 16:42:58,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:58,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145955833] [2022-07-19 16:42:58,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145955833] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:42:58,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560842814] [2022-07-19 16:42:58,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:58,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:42:58,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:42:58,896 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:42:58,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-19 16:42:59,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:59,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 1347 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-19 16:42:59,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:42:59,147 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-07-19 16:42:59,147 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:42:59,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560842814] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:42:59,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:42:59,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-07-19 16:42:59,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826796689] [2022-07-19 16:42:59,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:42:59,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 16:42:59,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:42:59,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 16:42:59,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-19 16:42:59,149 INFO L87 Difference]: Start difference. First operand 1933 states and 3133 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-19 16:42:59,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:42:59,308 INFO L93 Difference]: Finished difference Result 3850 states and 6314 transitions. [2022-07-19 16:42:59,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 16:42:59,308 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 169 [2022-07-19 16:42:59,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:42:59,314 INFO L225 Difference]: With dead ends: 3850 [2022-07-19 16:42:59,314 INFO L226 Difference]: Without dead ends: 1995 [2022-07-19 16:42:59,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-07-19 16:42:59,320 INFO L413 NwaCegarLoop]: 881 mSDtfsCounter, 69 mSDsluCounter, 1732 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 2613 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 16:42:59,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 2613 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 16:42:59,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1995 states. [2022-07-19 16:42:59,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1995 to 1941. [2022-07-19 16:42:59,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1941 states, 1602 states have (on average 1.6254681647940075) internal successors, (2604), 1629 states have internal predecessors, (2604), 241 states have call successors, (241), 99 states have call predecessors, (241), 97 states have return successors, (296), 236 states have call predecessors, (296), 237 states have call successors, (296) [2022-07-19 16:42:59,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1941 states to 1941 states and 3141 transitions. [2022-07-19 16:42:59,447 INFO L78 Accepts]: Start accepts. Automaton has 1941 states and 3141 transitions. Word has length 169 [2022-07-19 16:42:59,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:42:59,448 INFO L495 AbstractCegarLoop]: Abstraction has 1941 states and 3141 transitions. [2022-07-19 16:42:59,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-19 16:42:59,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1941 states and 3141 transitions. [2022-07-19 16:42:59,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-07-19 16:42:59,451 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:42:59,451 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-19 16:42:59,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-19 16:42:59,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:42:59,667 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:42:59,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:42:59,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1011251356, now seen corresponding path program 1 times [2022-07-19 16:42:59,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:42:59,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346427177] [2022-07-19 16:42:59,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:59,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:42:59,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:59,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:42:59,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:59,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:59,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:59,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:42:59,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:59,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:42:59,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:59,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:59,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:59,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-19 16:42:59,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:59,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 16:42:59,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:59,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-19 16:42:59,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:59,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 16:42:59,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:59,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-19 16:42:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:59,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-19 16:42:59,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:59,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-19 16:42:59,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:59,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-19 16:42:59,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:59,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-19 16:42:59,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:59,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-19 16:42:59,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:59,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:42:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:59,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-19 16:42:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:42:59,865 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-07-19 16:42:59,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:42:59,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346427177] [2022-07-19 16:42:59,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346427177] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:42:59,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620334107] [2022-07-19 16:42:59,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:42:59,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:42:59,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:42:59,867 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:42:59,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-19 16:43:00,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:00,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 1376 conjuncts, 33 conjunts are in the unsatisfiable core [2022-07-19 16:43:00,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:43:00,276 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-07-19 16:43:00,276 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 16:43:00,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620334107] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:43:00,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 16:43:00,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2022-07-19 16:43:00,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997403723] [2022-07-19 16:43:00,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:43:00,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 16:43:00,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:43:00,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 16:43:00,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-07-19 16:43:00,277 INFO L87 Difference]: Start difference. First operand 1941 states and 3141 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (17), 4 states have call predecessors, (17), 6 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-19 16:43:02,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:43:02,539 INFO L93 Difference]: Finished difference Result 5972 states and 9878 transitions. [2022-07-19 16:43:02,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-19 16:43:02,539 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (17), 4 states have call predecessors, (17), 6 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) Word has length 177 [2022-07-19 16:43:02,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:43:02,554 INFO L225 Difference]: With dead ends: 5972 [2022-07-19 16:43:02,554 INFO L226 Difference]: Without dead ends: 3737 [2022-07-19 16:43:02,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=608, Unknown=0, NotChecked=0, Total=702 [2022-07-19 16:43:02,563 INFO L413 NwaCegarLoop]: 790 mSDtfsCounter, 1945 mSDsluCounter, 1968 mSDsCounter, 0 mSdLazyCounter, 4093 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2050 SdHoareTripleChecker+Valid, 2758 SdHoareTripleChecker+Invalid, 4609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 4093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-19 16:43:02,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2050 Valid, 2758 Invalid, 4609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [516 Valid, 4093 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-19 16:43:02,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3737 states. [2022-07-19 16:43:02,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3737 to 3657. [2022-07-19 16:43:02,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3657 states, 2960 states have (on average 1.6422297297297297) internal successors, (4861), 3040 states have internal predecessors, (4861), 499 states have call successors, (499), 179 states have call predecessors, (499), 197 states have return successors, (641), 495 states have call predecessors, (641), 495 states have call successors, (641) [2022-07-19 16:43:02,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3657 states to 3657 states and 6001 transitions. [2022-07-19 16:43:02,870 INFO L78 Accepts]: Start accepts. Automaton has 3657 states and 6001 transitions. Word has length 177 [2022-07-19 16:43:02,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:43:02,870 INFO L495 AbstractCegarLoop]: Abstraction has 3657 states and 6001 transitions. [2022-07-19 16:43:02,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (17), 4 states have call predecessors, (17), 6 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-19 16:43:02,871 INFO L276 IsEmpty]: Start isEmpty. Operand 3657 states and 6001 transitions. [2022-07-19 16:43:02,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-07-19 16:43:02,878 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:43:02,878 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-19 16:43:02,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-19 16:43:03,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:43:03,096 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:43:03,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:43:03,096 INFO L85 PathProgramCache]: Analyzing trace with hash -359912820, now seen corresponding path program 1 times [2022-07-19 16:43:03,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:43:03,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091650583] [2022-07-19 16:43:03,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:03,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:43:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:03,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:43:03,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:03,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:03,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:43:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:03,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 16:43:03,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:03,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:03,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:03,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-19 16:43:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:03,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 16:43:03,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:03,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-19 16:43:03,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:03,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 16:43:03,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:03,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-19 16:43:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:03,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-19 16:43:03,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:03,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-19 16:43:03,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:03,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-19 16:43:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:03,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-19 16:43:03,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:03,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-19 16:43:03,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:03,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:03,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:03,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-19 16:43:03,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:03,209 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-07-19 16:43:03,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:43:03,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091650583] [2022-07-19 16:43:03,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091650583] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:43:03,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:43:03,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 16:43:03,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796412205] [2022-07-19 16:43:03,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:43:03,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 16:43:03,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:43:03,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 16:43:03,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-19 16:43:03,211 INFO L87 Difference]: Start difference. First operand 3657 states and 6001 transitions. Second operand has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-19 16:43:05,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:43:05,929 INFO L93 Difference]: Finished difference Result 8186 states and 13608 transitions. [2022-07-19 16:43:05,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 16:43:05,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 177 [2022-07-19 16:43:05,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:43:05,946 INFO L225 Difference]: With dead ends: 8186 [2022-07-19 16:43:05,946 INFO L226 Difference]: Without dead ends: 4543 [2022-07-19 16:43:05,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-07-19 16:43:05,954 INFO L413 NwaCegarLoop]: 867 mSDtfsCounter, 791 mSDsluCounter, 1168 mSDsCounter, 0 mSdLazyCounter, 1648 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 2035 SdHoareTripleChecker+Invalid, 1819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 1648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-19 16:43:05,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [903 Valid, 2035 Invalid, 1819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 1648 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-19 16:43:05,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4543 states. [2022-07-19 16:43:06,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4543 to 3671. [2022-07-19 16:43:06,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3671 states, 2974 states have (on average 1.6314727639542703) internal successors, (4852), 3054 states have internal predecessors, (4852), 499 states have call successors, (499), 179 states have call predecessors, (499), 197 states have return successors, (641), 495 states have call predecessors, (641), 495 states have call successors, (641) [2022-07-19 16:43:06,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3671 states to 3671 states and 5992 transitions. [2022-07-19 16:43:06,270 INFO L78 Accepts]: Start accepts. Automaton has 3671 states and 5992 transitions. Word has length 177 [2022-07-19 16:43:06,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:43:06,271 INFO L495 AbstractCegarLoop]: Abstraction has 3671 states and 5992 transitions. [2022-07-19 16:43:06,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-19 16:43:06,271 INFO L276 IsEmpty]: Start isEmpty. Operand 3671 states and 5992 transitions. [2022-07-19 16:43:06,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-19 16:43:06,278 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:43:06,279 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-19 16:43:06,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-19 16:43:06,279 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:43:06,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:43:06,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1639945016, now seen corresponding path program 1 times [2022-07-19 16:43:06,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:43:06,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351754142] [2022-07-19 16:43:06,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:06,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:43:06,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:06,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:43:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:06,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:06,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:43:06,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:06,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-19 16:43:06,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:06,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:06,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-19 16:43:06,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:06,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 16:43:06,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:06,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-19 16:43:06,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:06,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-19 16:43:06,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:06,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-19 16:43:06,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:06,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-19 16:43:06,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:06,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-19 16:43:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:06,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-19 16:43:06,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:06,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-19 16:43:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:06,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-19 16:43:06,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:06,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:06,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:06,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-19 16:43:06,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:06,428 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-07-19 16:43:06,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:43:06,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351754142] [2022-07-19 16:43:06,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351754142] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 16:43:06,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 16:43:06,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 16:43:06,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488838891] [2022-07-19 16:43:06,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 16:43:06,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 16:43:06,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:43:06,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 16:43:06,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-19 16:43:06,429 INFO L87 Difference]: Start difference. First operand 3671 states and 5992 transitions. Second operand has 9 states, 8 states have (on average 14.5) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-19 16:43:09,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 16:43:09,678 INFO L93 Difference]: Finished difference Result 7846 states and 13112 transitions. [2022-07-19 16:43:09,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 16:43:09,679 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.5) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 183 [2022-07-19 16:43:09,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 16:43:09,693 INFO L225 Difference]: With dead ends: 7846 [2022-07-19 16:43:09,693 INFO L226 Difference]: Without dead ends: 4112 [2022-07-19 16:43:09,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2022-07-19 16:43:09,703 INFO L413 NwaCegarLoop]: 900 mSDtfsCounter, 1402 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 3367 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 3461 SdHoareTripleChecker+Invalid, 3733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 3367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-19 16:43:09,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 3461 Invalid, 3733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [366 Valid, 3367 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-19 16:43:09,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4112 states. [2022-07-19 16:43:09,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4112 to 3311. [2022-07-19 16:43:09,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3311 states, 2714 states have (on average 1.6680176860722182) internal successors, (4527), 2781 states have internal predecessors, (4527), 419 states have call successors, (419), 167 states have call predecessors, (419), 177 states have return successors, (511), 410 states have call predecessors, (511), 415 states have call successors, (511) [2022-07-19 16:43:09,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3311 states to 3311 states and 5457 transitions. [2022-07-19 16:43:09,999 INFO L78 Accepts]: Start accepts. Automaton has 3311 states and 5457 transitions. Word has length 183 [2022-07-19 16:43:09,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 16:43:09,999 INFO L495 AbstractCegarLoop]: Abstraction has 3311 states and 5457 transitions. [2022-07-19 16:43:09,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.5) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-19 16:43:09,999 INFO L276 IsEmpty]: Start isEmpty. Operand 3311 states and 5457 transitions. [2022-07-19 16:43:10,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2022-07-19 16:43:10,007 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 16:43:10,007 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-07-19 16:43:10,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-19 16:43:10,007 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 16:43:10,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 16:43:10,008 INFO L85 PathProgramCache]: Analyzing trace with hash 2081175649, now seen corresponding path program 1 times [2022-07-19 16:43:10,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 16:43:10,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341042158] [2022-07-19 16:43:10,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:10,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 16:43:10,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:43:10,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:10,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 16:43:10,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-19 16:43:10,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:10,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:10,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:43:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 16:43:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:10,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:43:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-19 16:43:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 16:43:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 16:43:10,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:10,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-19 16:43:10,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:10,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:43:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 16:43:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:10,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:43:10,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-19 16:43:10,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 16:43:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 16:43:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-19 16:43:10,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:10,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:43:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 16:43:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 16:43:10,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:10,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:10,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 16:43:10,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-19 16:43:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 16:43:10,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-19 16:43:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:10,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-07-19 16:43:10,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:10,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 16:43:10,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-07-19 16:43:10,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:10,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2022-07-19 16:43:10,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 16:43:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-19 16:43:10,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-07-19 16:43:10,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2022-07-19 16:43:10,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2022-07-19 16:43:10,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-07-19 16:43:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-07-19 16:43:10,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-07-19 16:43:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-07-19 16:43:10,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 16:43:10,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-07-19 16:43:10,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1099 backedges. 37 proven. 136 refuted. 0 times theorem prover too weak. 926 trivial. 0 not checked. [2022-07-19 16:43:10,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 16:43:10,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341042158] [2022-07-19 16:43:10,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341042158] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 16:43:10,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408975743] [2022-07-19 16:43:10,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 16:43:10,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 16:43:10,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 16:43:10,456 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 16:43:10,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-19 16:43:10,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 16:43:10,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 3234 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-19 16:43:10,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 16:43:11,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1099 backedges. 371 proven. 50 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2022-07-19 16:43:11,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 16:43:11,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1099 backedges. 53 proven. 101 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2022-07-19 16:43:11,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408975743] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 16:43:11,828 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 16:43:11,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 11, 14] total 34 [2022-07-19 16:43:11,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966606507] [2022-07-19 16:43:11,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 16:43:11,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-07-19 16:43:11,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 16:43:11,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-07-19 16:43:11,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=997, Unknown=0, NotChecked=0, Total=1122 [2022-07-19 16:43:11,830 INFO L87 Difference]: Start difference. First operand 3311 states and 5457 transitions. Second operand has 34 states, 32 states have (on average 12.09375) internal successors, (387), 25 states have internal predecessors, (387), 17 states have call successors, (92), 11 states have call predecessors, (92), 14 states have return successors, (91), 22 states have call predecessors, (91), 17 states have call successors, (91)