./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--amd8111e.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 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/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--amd8111e.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash f5287aa284221e5fd9453b6be2206814d99b5890aba823bfb498c43964518ada --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 05:04:54,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 05:04:54,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 05:04:54,711 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 05:04:54,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 05:04:54,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 05:04:54,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 05:04:54,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 05:04:54,721 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 05:04:54,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 05:04:54,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 05:04:54,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 05:04:54,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 05:04:54,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 05:04:54,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 05:04:54,737 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 05:04:54,738 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 05:04:54,739 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 05:04:54,741 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 05:04:54,746 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 05:04:54,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 05:04:54,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 05:04:54,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 05:04:54,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 05:04:54,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 05:04:54,757 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 05:04:54,757 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 05:04:54,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 05:04:54,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 05:04:54,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 05:04:54,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 05:04:54,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 05:04:54,763 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 05:04:54,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 05:04:54,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 05:04:54,765 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 05:04:54,765 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 05:04:54,766 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 05:04:54,766 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 05:04:54,767 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 05:04:54,768 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 05:04:54,769 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 05:04:54,800 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 05:04:54,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 05:04:54,800 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 05:04:54,801 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 05:04:54,801 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 05:04:54,802 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 05:04:54,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 05:04:54,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 05:04:54,802 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 05:04:54,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 05:04:54,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 05:04:54,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 05:04:54,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 05:04:54,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 05:04:54,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 05:04:54,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 05:04:54,804 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 05:04:54,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 05:04:54,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 05:04:54,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 05:04:54,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 05:04:54,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 05:04:54,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 05:04:54,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 05:04:54,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 05:04:54,806 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 05:04:54,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 05:04:54,806 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 05:04:54,806 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 05:04:54,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 05:04:54,807 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 05:04:54,807 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f5287aa284221e5fd9453b6be2206814d99b5890aba823bfb498c43964518ada [2021-11-17 05:04:55,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 05:04:55,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 05:04:55,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 05:04:55,057 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 05:04:55,058 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 05:04:55,059 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--amd8111e.ko-entry_point.cil.out.i [2021-11-17 05:04:55,122 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/705aaf8ca/8513606e97964cc99eca7ca2045e10fc/FLAG99566de05 [2021-11-17 05:04:55,769 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 05:04:55,770 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--amd8111e.ko-entry_point.cil.out.i [2021-11-17 05:04:55,819 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/705aaf8ca/8513606e97964cc99eca7ca2045e10fc/FLAG99566de05 [2021-11-17 05:04:55,897 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/705aaf8ca/8513606e97964cc99eca7ca2045e10fc [2021-11-17 05:04:55,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 05:04:55,902 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 05:04:55,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 05:04:55,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 05:04:55,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 05:04:55,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 05:04:55" (1/1) ... [2021-11-17 05:04:55,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d9e899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:04:55, skipping insertion in model container [2021-11-17 05:04:55,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 05:04:55" (1/1) ... [2021-11-17 05:04:55,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 05:04:56,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 05:04:57,803 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/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--amd8111e.ko-entry_point.cil.out.i[274049,274062] [2021-11-17 05:04:57,855 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 05:04:57,896 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 05:04:58,157 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/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--amd8111e.ko-entry_point.cil.out.i[274049,274062] [2021-11-17 05:04:58,164 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 05:04:58,321 INFO L208 MainTranslator]: Completed translation [2021-11-17 05:04:58,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:04:58 WrapperNode [2021-11-17 05:04:58,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 05:04:58,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 05:04:58,325 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 05:04:58,325 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 05:04:58,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:04:58" (1/1) ... [2021-11-17 05:04:58,424 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:04:58" (1/1) ... [2021-11-17 05:04:58,561 INFO L137 Inliner]: procedures = 278, calls = 1469, calls flagged for inlining = 144, calls inlined = 134, statements flattened = 3578 [2021-11-17 05:04:58,562 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 05:04:58,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 05:04:58,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 05:04:58,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 05:04:58,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:04:58" (1/1) ... [2021-11-17 05:04:58,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:04:58" (1/1) ... [2021-11-17 05:04:58,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:04:58" (1/1) ... [2021-11-17 05:04:58,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:04:58" (1/1) ... [2021-11-17 05:04:58,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:04:58" (1/1) ... [2021-11-17 05:04:58,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:04:58" (1/1) ... [2021-11-17 05:04:58,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:04:58" (1/1) ... [2021-11-17 05:04:58,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 05:04:58,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 05:04:58,777 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 05:04:58,777 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 05:04:58,778 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:04:58" (1/1) ... [2021-11-17 05:04:58,785 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 05:04:58,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 05:04:58,856 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) [2021-11-17 05:04:58,871 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 [2021-11-17 05:04:58,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_3 [2021-11-17 05:04:58,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_3 [2021-11-17 05:04:58,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 05:04:58,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 05:04:58,897 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-17 05:04:58,897 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-17 05:04:58,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 05:04:58,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 05:04:58,897 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_get_stats [2021-11-17 05:04:58,898 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_get_stats [2021-11-17 05:04:58,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 05:04:58,898 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 05:04:58,898 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-17 05:04:58,898 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-17 05:04:58,898 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-17 05:04:58,898 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-17 05:04:58,898 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-17 05:04:58,898 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-17 05:04:58,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-17 05:04:58,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-17 05:04:58,899 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_mdio_write [2021-11-17 05:04:58,899 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_mdio_write [2021-11-17 05:04:58,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 05:04:58,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 05:04:58,899 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_read_mib [2021-11-17 05:04:58,899 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_read_mib [2021-11-17 05:04:58,899 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-17 05:04:58,899 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-17 05:04:58,899 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_interrupt [2021-11-17 05:04:58,900 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_interrupt [2021-11-17 05:04:58,900 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-11-17 05:04:58,900 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-11-17 05:04:58,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 05:04:58,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 05:04:58,900 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-17 05:04:58,900 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-17 05:04:58,900 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-17 05:04:58,903 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-17 05:04:58,903 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-17 05:04:58,903 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-17 05:04:58,903 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_coalesce [2021-11-17 05:04:58,903 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_coalesce [2021-11-17 05:04:58,903 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 05:04:58,903 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 05:04:58,904 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-17 05:04:58,904 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-17 05:04:58,904 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-17 05:04:58,904 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-17 05:04:58,904 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-17 05:04:58,904 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-17 05:04:58,904 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-17 05:04:58,904 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-17 05:04:58,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 05:04:58,905 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-11-17 05:04:58,905 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-11-17 05:04:58,905 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-17 05:04:58,905 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-17 05:04:58,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 05:04:58,906 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-17 05:04:58,907 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-17 05:04:58,907 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-17 05:04:58,907 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-17 05:04:58,907 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-17 05:04:58,907 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-17 05:04:58,907 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_disable_interrupt [2021-11-17 05:04:58,907 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_disable_interrupt [2021-11-17 05:04:58,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-17 05:04:58,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-17 05:04:58,908 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-17 05:04:58,908 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-17 05:04:58,908 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-17 05:04:58,908 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-17 05:04:58,908 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-17 05:04:58,908 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-17 05:04:58,909 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_multicast_list [2021-11-17 05:04:58,909 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_multicast_list [2021-11-17 05:04:58,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 05:04:58,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 05:04:58,909 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_resume [2021-11-17 05:04:58,909 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_resume [2021-11-17 05:04:58,909 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_tx_timeout [2021-11-17 05:04:58,909 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_tx_timeout [2021-11-17 05:04:58,909 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 05:04:58,909 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 05:04:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 05:04:58,910 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 05:04:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_mdio_read [2021-11-17 05:04:58,910 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_mdio_read [2021-11-17 05:04:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 05:04:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-17 05:04:58,910 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-17 05:04:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_rx_buff_len [2021-11-17 05:04:58,911 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_rx_buff_len [2021-11-17 05:04:58,911 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_restart [2021-11-17 05:04:58,911 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_restart [2021-11-17 05:04:58,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 05:04:58,912 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2021-11-17 05:04:58,912 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2021-11-17 05:04:58,912 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-17 05:04:58,912 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-17 05:04:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 05:04:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 05:04:58,913 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 05:04:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-17 05:04:58,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-17 05:04:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-17 05:04:58,913 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-17 05:04:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-17 05:04:58,913 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-17 05:04:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-17 05:04:58,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-17 05:04:58,914 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_ioctl [2021-11-17 05:04:58,914 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_ioctl [2021-11-17 05:04:58,914 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-17 05:04:58,914 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-17 05:04:58,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 05:04:58,914 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-17 05:04:58,915 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-17 05:04:58,915 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-11-17 05:04:58,917 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-11-17 05:04:58,917 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_write_phy [2021-11-17 05:04:58,917 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_write_phy [2021-11-17 05:04:58,917 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-17 05:04:58,918 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-17 05:04:58,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 05:04:58,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 05:04:58,919 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_mac_address [2021-11-17 05:04:58,920 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_mac_address [2021-11-17 05:04:58,925 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_stop_chip [2021-11-17 05:04:58,925 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_stop_chip [2021-11-17 05:04:58,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-17 05:04:58,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-17 05:04:58,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 05:04:58,925 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2021-11-17 05:04:58,925 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2021-11-17 05:04:58,925 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_read_phy [2021-11-17 05:04:58,925 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_read_phy [2021-11-17 05:04:58,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-17 05:04:58,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-17 05:04:58,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 05:04:58,926 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 05:04:58,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 05:04:58,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 05:04:58,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-11-17 05:04:58,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-11-17 05:04:58,926 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2021-11-17 05:04:58,926 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2021-11-17 05:04:58,926 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_poll [2021-11-17 05:04:58,926 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_poll [2021-11-17 05:04:58,926 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_change_mtu [2021-11-17 05:04:58,926 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_change_mtu [2021-11-17 05:04:58,926 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-17 05:04:58,927 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-17 05:04:58,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_3 [2021-11-17 05:04:58,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_3 [2021-11-17 05:04:58,927 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-17 05:04:58,927 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-17 05:04:58,927 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_remove_one [2021-11-17 05:04:58,927 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_remove_one [2021-11-17 05:04:58,927 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-17 05:04:58,927 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-17 05:04:58,927 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-17 05:04:58,927 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-17 05:04:58,927 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_free_skbs [2021-11-17 05:04:58,927 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_free_skbs [2021-11-17 05:04:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-17 05:04:58,928 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-17 05:04:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-17 05:04:58,928 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-17 05:04:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 05:04:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-11-17 05:04:58,928 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-11-17 05:04:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-11-17 05:04:58,928 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-11-17 05:04:58,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 05:04:58,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 05:04:59,492 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 05:04:59,495 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 05:04:59,917 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 05:05:01,570 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 05:05:01,592 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 05:05:01,592 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-17 05:05:01,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 05:05:01 BoogieIcfgContainer [2021-11-17 05:05:01,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 05:05:01,599 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 05:05:01,599 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 05:05:01,602 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 05:05:01,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 05:04:55" (1/3) ... [2021-11-17 05:05:01,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d3f066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 05:05:01, skipping insertion in model container [2021-11-17 05:05:01,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:04:58" (2/3) ... [2021-11-17 05:05:01,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d3f066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 05:05:01, skipping insertion in model container [2021-11-17 05:05:01,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 05:05:01" (3/3) ... [2021-11-17 05:05:01,604 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--amd8111e.ko-entry_point.cil.out.i [2021-11-17 05:05:01,608 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 05:05:01,609 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 05:05:01,665 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 05:05:01,680 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 05:05:01,682 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 05:05:01,735 INFO L276 IsEmpty]: Start isEmpty. Operand has 1499 states, 997 states have (on average 1.3069207622868606) internal successors, (1303), 1024 states have internal predecessors, (1303), 421 states have call successors, (421), 80 states have call predecessors, (421), 79 states have return successors, (414), 409 states have call predecessors, (414), 414 states have call successors, (414) [2021-11-17 05:05:01,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-17 05:05:01,769 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:05:01,770 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 3, 3, 3, 3, 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] [2021-11-17 05:05:01,771 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:05:01,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:05:01,777 INFO L85 PathProgramCache]: Analyzing trace with hash -599118696, now seen corresponding path program 1 times [2021-11-17 05:05:01,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:05:01,785 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455931956] [2021-11-17 05:05:01,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:05:01,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:05:02,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:05:02,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:02,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:05:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:02,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:02,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:05:02,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:02,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:02,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:05:02,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:02,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:05:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:02,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:05:02,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:02,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:05:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:02,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:02,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:05:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 05:05:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:05:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 05:05:02,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 05:05:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-17 05:05:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:02,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 05:05:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 05:05:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 05:05:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 05:05:02,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 05:05:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:02,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-17 05:05:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:02,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:02,834 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2021-11-17 05:05:02,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:05:02,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455931956] [2021-11-17 05:05:02,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455931956] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:05:02,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:05:02,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 05:05:02,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319596124] [2021-11-17 05:05:02,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:05:02,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 05:05:02,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:05:02,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 05:05:02,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 05:05:02,876 INFO L87 Difference]: Start difference. First operand has 1499 states, 997 states have (on average 1.3069207622868606) internal successors, (1303), 1024 states have internal predecessors, (1303), 421 states have call successors, (421), 80 states have call predecessors, (421), 79 states have return successors, (414), 409 states have call predecessors, (414), 414 states have call successors, (414) Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 2 states have internal predecessors, (83), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 05:05:05,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:05:05,971 INFO L93 Difference]: Finished difference Result 3127 states and 4522 transitions. [2021-11-17 05:05:05,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 05:05:05,973 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 2 states have internal predecessors, (83), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 234 [2021-11-17 05:05:05,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:05:05,996 INFO L225 Difference]: With dead ends: 3127 [2021-11-17 05:05:05,996 INFO L226 Difference]: Without dead ends: 1609 [2021-11-17 05:05:06,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 05:05:06,011 INFO L933 BasicCegarLoop]: 1921 mSDtfsCounter, 1792 mSDsluCounter, 1541 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 2222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1864 SdHoareTripleChecker+Valid, 3462 SdHoareTripleChecker+Invalid, 3442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2222 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-17 05:05:06,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1864 Valid, 3462 Invalid, 3442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2222 Valid, 1220 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-17 05:05:06,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1609 states. [2021-11-17 05:05:06,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1609 to 1475. [2021-11-17 05:05:06,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 982 states have (on average 1.2922606924643585) internal successors, (1269), 1000 states have internal predecessors, (1269), 414 states have call successors, (414), 79 states have call predecessors, (414), 78 states have return successors, (413), 408 states have call predecessors, (413), 413 states have call successors, (413) [2021-11-17 05:05:06,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 2096 transitions. [2021-11-17 05:05:06,164 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 2096 transitions. Word has length 234 [2021-11-17 05:05:06,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:05:06,165 INFO L470 AbstractCegarLoop]: Abstraction has 1475 states and 2096 transitions. [2021-11-17 05:05:06,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 2 states have internal predecessors, (83), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 05:05:06,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 2096 transitions. [2021-11-17 05:05:06,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-17 05:05:06,175 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:05:06,175 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 3, 3, 3, 3, 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] [2021-11-17 05:05:06,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 05:05:06,175 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:05:06,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:05:06,176 INFO L85 PathProgramCache]: Analyzing trace with hash 518087718, now seen corresponding path program 1 times [2021-11-17 05:05:06,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:05:06,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292259737] [2021-11-17 05:05:06,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:05:06,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:05:06,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:05:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:06,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:06,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:05:06,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:06,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:05:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:06,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:06,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:05:06,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:06,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:06,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:05:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:05:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:06,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:05:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:06,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:05:06,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 05:05:06,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:05:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 05:05:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 05:05:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:06,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-17 05:05:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:06,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 05:05:06,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 05:05:06,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 05:05:06,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 05:05:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 05:05:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:06,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-17 05:05:06,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:06,662 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2021-11-17 05:05:06,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:05:06,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292259737] [2021-11-17 05:05:06,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292259737] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:05:06,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:05:06,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 05:05:06,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599114084] [2021-11-17 05:05:06,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:05:06,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 05:05:06,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:05:06,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 05:05:06,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 05:05:06,665 INFO L87 Difference]: Start difference. First operand 1475 states and 2096 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 05:05:11,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:05:11,844 INFO L93 Difference]: Finished difference Result 4067 states and 5785 transitions. [2021-11-17 05:05:11,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 05:05:11,845 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 234 [2021-11-17 05:05:11,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:05:11,861 INFO L225 Difference]: With dead ends: 4067 [2021-11-17 05:05:11,862 INFO L226 Difference]: Without dead ends: 2620 [2021-11-17 05:05:11,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-11-17 05:05:11,869 INFO L933 BasicCegarLoop]: 2154 mSDtfsCounter, 2947 mSDsluCounter, 3564 mSDsCounter, 0 mSdLazyCounter, 3240 mSolverCounterSat, 2793 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3146 SdHoareTripleChecker+Valid, 5718 SdHoareTripleChecker+Invalid, 6033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2793 IncrementalHoareTripleChecker+Valid, 3240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-11-17 05:05:11,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3146 Valid, 5718 Invalid, 6033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2793 Valid, 3240 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2021-11-17 05:05:11,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2620 states. [2021-11-17 05:05:11,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2620 to 2409. [2021-11-17 05:05:11,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2409 states, 1631 states have (on average 1.296137339055794) internal successors, (2114), 1662 states have internal predecessors, (2114), 640 states have call successors, (640), 138 states have call predecessors, (640), 137 states have return successors, (643), 628 states have call predecessors, (643), 639 states have call successors, (643) [2021-11-17 05:05:11,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2409 states to 2409 states and 3397 transitions. [2021-11-17 05:05:11,981 INFO L78 Accepts]: Start accepts. Automaton has 2409 states and 3397 transitions. Word has length 234 [2021-11-17 05:05:11,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:05:11,983 INFO L470 AbstractCegarLoop]: Abstraction has 2409 states and 3397 transitions. [2021-11-17 05:05:11,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 05:05:11,983 INFO L276 IsEmpty]: Start isEmpty. Operand 2409 states and 3397 transitions. [2021-11-17 05:05:11,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-11-17 05:05:11,989 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:05:11,990 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 3, 3, 3, 3, 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, 1, 1, 1] [2021-11-17 05:05:11,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 05:05:11,990 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:05:11,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:05:11,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1136556690, now seen corresponding path program 1 times [2021-11-17 05:05:11,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:05:11,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434178623] [2021-11-17 05:05:11,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:05:11,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:05:12,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:05:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:12,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:12,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:05:12,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:12,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:12,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:05:12,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:12,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:12,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:05:12,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:12,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:05:12,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:12,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:05:12,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:12,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:12,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:05:12,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:12,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:05:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 05:05:12,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:05:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 05:05:12,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 05:05:12,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 05:05:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:12,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 05:05:12,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 05:05:12,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 05:05:12,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 05:05:12,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:12,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-11-17 05:05:12,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-11-17 05:05:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-17 05:05:12,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-17 05:05:12,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:12,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-17 05:05:12,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:12,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:12,505 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2021-11-17 05:05:12,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:05:12,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434178623] [2021-11-17 05:05:12,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434178623] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:05:12,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:05:12,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 05:05:12,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188207728] [2021-11-17 05:05:12,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:05:12,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 05:05:12,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:05:12,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 05:05:12,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 05:05:12,509 INFO L87 Difference]: Start difference. First operand 2409 states and 3397 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-17 05:05:17,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:05:17,706 INFO L93 Difference]: Finished difference Result 6720 states and 9564 transitions. [2021-11-17 05:05:17,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 05:05:17,706 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 253 [2021-11-17 05:05:17,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:05:17,734 INFO L225 Difference]: With dead ends: 6720 [2021-11-17 05:05:17,734 INFO L226 Difference]: Without dead ends: 4339 [2021-11-17 05:05:17,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-11-17 05:05:17,746 INFO L933 BasicCegarLoop]: 2620 mSDtfsCounter, 3449 mSDsluCounter, 4180 mSDsCounter, 0 mSdLazyCounter, 3634 mSolverCounterSat, 2977 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3733 SdHoareTripleChecker+Valid, 6800 SdHoareTripleChecker+Invalid, 6611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2977 IncrementalHoareTripleChecker+Valid, 3634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-11-17 05:05:17,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3733 Valid, 6800 Invalid, 6611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2977 Valid, 3634 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2021-11-17 05:05:17,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4339 states. [2021-11-17 05:05:17,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4339 to 3966. [2021-11-17 05:05:17,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3966 states, 2683 states have (on average 1.3004099888184868) internal successors, (3489), 2737 states have internal predecessors, (3489), 1061 states have call successors, (1061), 222 states have call predecessors, (1061), 221 states have return successors, (1064), 1041 states have call predecessors, (1064), 1060 states have call successors, (1064) [2021-11-17 05:05:17,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3966 states to 3966 states and 5614 transitions. [2021-11-17 05:05:17,966 INFO L78 Accepts]: Start accepts. Automaton has 3966 states and 5614 transitions. Word has length 253 [2021-11-17 05:05:17,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:05:17,967 INFO L470 AbstractCegarLoop]: Abstraction has 3966 states and 5614 transitions. [2021-11-17 05:05:17,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-17 05:05:17,967 INFO L276 IsEmpty]: Start isEmpty. Operand 3966 states and 5614 transitions. [2021-11-17 05:05:17,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-11-17 05:05:17,980 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:05:17,981 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:05:17,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 05:05:17,981 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:05:17,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:05:17,982 INFO L85 PathProgramCache]: Analyzing trace with hash -387304057, now seen corresponding path program 1 times [2021-11-17 05:05:17,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:05:17,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147242080] [2021-11-17 05:05:17,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:05:17,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:05:18,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:05:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:18,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:18,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:05:18,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:18,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:18,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:05:18,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:18,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:18,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:05:18,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:18,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:18,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:05:18,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:05:18,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:18,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:18,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:05:18,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:18,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:18,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:05:18,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 05:05:18,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:05:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 05:05:18,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:18,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:18,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 05:05:18,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 05:05:18,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 05:05:18,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:18,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 05:05:18,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-17 05:05:18,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-17 05:05:18,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-17 05:05:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:18,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 05:05:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-11-17 05:05:18,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-17 05:05:18,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-17 05:05:18,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:18,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-11-17 05:05:18,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:18,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:18,423 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2021-11-17 05:05:18,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:05:18,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147242080] [2021-11-17 05:05:18,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147242080] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:05:18,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:05:18,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 05:05:18,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960318966] [2021-11-17 05:05:18,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:05:18,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 05:05:18,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:05:18,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 05:05:18,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 05:05:18,426 INFO L87 Difference]: Start difference. First operand 3966 states and 5614 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (34), 6 states have call predecessors, (34), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-17 05:05:21,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:05:21,558 INFO L93 Difference]: Finished difference Result 8258 states and 11762 transitions. [2021-11-17 05:05:21,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 05:05:21,559 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (34), 6 states have call predecessors, (34), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 282 [2021-11-17 05:05:21,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:05:21,585 INFO L225 Difference]: With dead ends: 8258 [2021-11-17 05:05:21,586 INFO L226 Difference]: Without dead ends: 4334 [2021-11-17 05:05:21,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-11-17 05:05:21,603 INFO L933 BasicCegarLoop]: 1879 mSDtfsCounter, 2892 mSDsluCounter, 2124 mSDsCounter, 0 mSdLazyCounter, 1832 mSolverCounterSat, 2101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3163 SdHoareTripleChecker+Valid, 4003 SdHoareTripleChecker+Invalid, 3933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2101 IncrementalHoareTripleChecker+Valid, 1832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-17 05:05:21,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3163 Valid, 4003 Invalid, 3933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2101 Valid, 1832 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-17 05:05:21,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4334 states. [2021-11-17 05:05:21,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4334 to 3966. [2021-11-17 05:05:21,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3966 states, 2683 states have (on average 1.2996645546030563) internal successors, (3487), 2737 states have internal predecessors, (3487), 1061 states have call successors, (1061), 222 states have call predecessors, (1061), 221 states have return successors, (1064), 1041 states have call predecessors, (1064), 1060 states have call successors, (1064) [2021-11-17 05:05:21,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3966 states to 3966 states and 5612 transitions. [2021-11-17 05:05:21,769 INFO L78 Accepts]: Start accepts. Automaton has 3966 states and 5612 transitions. Word has length 282 [2021-11-17 05:05:21,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:05:21,771 INFO L470 AbstractCegarLoop]: Abstraction has 3966 states and 5612 transitions. [2021-11-17 05:05:21,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (34), 6 states have call predecessors, (34), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-17 05:05:21,771 INFO L276 IsEmpty]: Start isEmpty. Operand 3966 states and 5612 transitions. [2021-11-17 05:05:21,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2021-11-17 05:05:21,779 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:05:21,780 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 5, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:05:21,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 05:05:21,780 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:05:21,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:05:21,781 INFO L85 PathProgramCache]: Analyzing trace with hash -108887453, now seen corresponding path program 1 times [2021-11-17 05:05:21,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:05:21,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749347656] [2021-11-17 05:05:21,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:05:21,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:05:21,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:21,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:05:21,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:21,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:21,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:21,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:21,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:05:22,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:22,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:22,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:05:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:22,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:05:22,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:22,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:05:22,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:22,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:05:22,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:22,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:22,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:05:22,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:22,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:05:22,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 05:05:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:05:22,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 05:05:22,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:22,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 05:05:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:22,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:22,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 05:05:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:22,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 05:05:22,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:22,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:22,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-11-17 05:05:22,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 05:05:22,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-11-17 05:05:22,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-17 05:05:22,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 05:05:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-11-17 05:05:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-11-17 05:05:22,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-17 05:05:22,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-11-17 05:05:22,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2021-11-17 05:05:22,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 05:05:22,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:22,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-11-17 05:05:22,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:22,442 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2021-11-17 05:05:22,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:05:22,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749347656] [2021-11-17 05:05:22,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749347656] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:05:22,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:05:22,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 05:05:22,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886308995] [2021-11-17 05:05:22,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:05:22,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 05:05:22,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:05:22,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 05:05:22,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 05:05:22,446 INFO L87 Difference]: Start difference. First operand 3966 states and 5612 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (37), 6 states have call predecessors, (37), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-17 05:05:27,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:05:27,973 INFO L93 Difference]: Finished difference Result 10069 states and 14377 transitions. [2021-11-17 05:05:27,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 05:05:27,973 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (37), 6 states have call predecessors, (37), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 332 [2021-11-17 05:05:27,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:05:28,020 INFO L225 Difference]: With dead ends: 10069 [2021-11-17 05:05:28,020 INFO L226 Difference]: Without dead ends: 6145 [2021-11-17 05:05:28,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-11-17 05:05:28,039 INFO L933 BasicCegarLoop]: 3243 mSDtfsCounter, 2854 mSDsluCounter, 4766 mSDsCounter, 0 mSdLazyCounter, 4101 mSolverCounterSat, 2588 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3143 SdHoareTripleChecker+Valid, 8009 SdHoareTripleChecker+Invalid, 6689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2588 IncrementalHoareTripleChecker+Valid, 4101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-11-17 05:05:28,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3143 Valid, 8009 Invalid, 6689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2588 Valid, 4101 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2021-11-17 05:05:28,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6145 states. [2021-11-17 05:05:28,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6145 to 5601. [2021-11-17 05:05:28,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5601 states, 3804 states have (on average 1.3012618296529967) internal successors, (4950), 3881 states have internal predecessors, (4950), 1486 states have call successors, (1486), 311 states have call predecessors, (1486), 310 states have return successors, (1489), 1459 states have call predecessors, (1489), 1485 states have call successors, (1489) [2021-11-17 05:05:28,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5601 states to 5601 states and 7925 transitions. [2021-11-17 05:05:28,328 INFO L78 Accepts]: Start accepts. Automaton has 5601 states and 7925 transitions. Word has length 332 [2021-11-17 05:05:28,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:05:28,328 INFO L470 AbstractCegarLoop]: Abstraction has 5601 states and 7925 transitions. [2021-11-17 05:05:28,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (37), 6 states have call predecessors, (37), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-17 05:05:28,330 INFO L276 IsEmpty]: Start isEmpty. Operand 5601 states and 7925 transitions. [2021-11-17 05:05:28,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2021-11-17 05:05:28,342 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:05:28,343 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 5, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:05:28,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 05:05:28,343 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:05:28,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:05:28,344 INFO L85 PathProgramCache]: Analyzing trace with hash -432636051, now seen corresponding path program 1 times [2021-11-17 05:05:28,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:05:28,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577926023] [2021-11-17 05:05:28,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:05:28,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:05:28,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:05:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:28,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:28,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:05:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:28,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:05:28,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:28,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:05:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:28,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:05:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:28,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:28,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:05:28,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:28,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:05:28,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:28,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:05:28,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 05:05:28,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:05:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 05:05:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:28,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:28,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 05:05:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:28,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:28,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 05:05:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:28,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:28,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 05:05:28,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-11-17 05:05:28,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 05:05:28,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-17 05:05:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:28,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-11-17 05:05:28,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 05:05:28,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-11-17 05:05:28,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-11-17 05:05:28,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-17 05:05:28,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-11-17 05:05:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-11-17 05:05:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-11-17 05:05:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-17 05:05:28,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:28,915 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2021-11-17 05:05:28,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:05:28,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577926023] [2021-11-17 05:05:28,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577926023] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:05:28,917 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:05:28,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 05:05:28,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137437120] [2021-11-17 05:05:28,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:05:28,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 05:05:28,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:05:28,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 05:05:28,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 05:05:28,919 INFO L87 Difference]: Start difference. First operand 5601 states and 7925 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (37), 6 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-17 05:05:33,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:05:33,427 INFO L93 Difference]: Finished difference Result 13515 states and 19266 transitions. [2021-11-17 05:05:33,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 05:05:33,428 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (37), 6 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 344 [2021-11-17 05:05:33,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:05:33,479 INFO L225 Difference]: With dead ends: 13515 [2021-11-17 05:05:33,479 INFO L226 Difference]: Without dead ends: 7956 [2021-11-17 05:05:33,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-11-17 05:05:33,504 INFO L933 BasicCegarLoop]: 2760 mSDtfsCounter, 3860 mSDsluCounter, 3474 mSDsCounter, 0 mSdLazyCounter, 2839 mSolverCounterSat, 3877 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4158 SdHoareTripleChecker+Valid, 6234 SdHoareTripleChecker+Invalid, 6716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3877 IncrementalHoareTripleChecker+Valid, 2839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-11-17 05:05:33,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4158 Valid, 6234 Invalid, 6716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3877 Valid, 2839 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2021-11-17 05:05:33,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7956 states. [2021-11-17 05:05:33,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7956 to 7253. [2021-11-17 05:05:33,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7253 states, 4936 states have (on average 1.301256077795786) internal successors, (6423), 5037 states have internal predecessors, (6423), 1911 states have call successors, (1911), 406 states have call predecessors, (1911), 405 states have return successors, (1914), 1876 states have call predecessors, (1914), 1910 states have call successors, (1914) [2021-11-17 05:05:33,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7253 states to 7253 states and 10248 transitions. [2021-11-17 05:05:33,895 INFO L78 Accepts]: Start accepts. Automaton has 7253 states and 10248 transitions. Word has length 344 [2021-11-17 05:05:33,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:05:33,899 INFO L470 AbstractCegarLoop]: Abstraction has 7253 states and 10248 transitions. [2021-11-17 05:05:33,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (37), 6 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-17 05:05:33,899 INFO L276 IsEmpty]: Start isEmpty. Operand 7253 states and 10248 transitions. [2021-11-17 05:05:33,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2021-11-17 05:05:33,920 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:05:33,920 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:05:33,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 05:05:33,921 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:05:33,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:05:33,921 INFO L85 PathProgramCache]: Analyzing trace with hash 87512182, now seen corresponding path program 1 times [2021-11-17 05:05:33,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:05:33,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802033685] [2021-11-17 05:05:33,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:05:33,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:05:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:05:34,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:34,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:34,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:05:34,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:34,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:34,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:05:34,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:34,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:05:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:34,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:34,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:05:34,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:05:34,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:34,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:05:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:34,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:05:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 05:05:34,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:05:34,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 05:05:34,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:34,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:34,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 05:05:34,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:34,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 05:05:34,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:34,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 05:05:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:34,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 05:05:34,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 05:05:34,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 05:05:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:34,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-11-17 05:05:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-11-17 05:05:34,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-11-17 05:05:34,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:34,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-11-17 05:05:34,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-17 05:05:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 05:05:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-11-17 05:05:34,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:34,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-11-17 05:05:34,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-11-17 05:05:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-11-17 05:05:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-11-17 05:05:34,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2021-11-17 05:05:34,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:34,389 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2021-11-17 05:05:34,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:05:34,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802033685] [2021-11-17 05:05:34,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802033685] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:05:34,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:05:34,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 05:05:34,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166942626] [2021-11-17 05:05:34,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:05:34,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 05:05:34,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:05:34,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 05:05:34,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 05:05:34,392 INFO L87 Difference]: Start difference. First operand 7253 states and 10248 transitions. Second operand has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (40), 6 states have call predecessors, (40), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-17 05:05:37,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:05:37,656 INFO L93 Difference]: Finished difference Result 17601 states and 25625 transitions. [2021-11-17 05:05:37,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 05:05:37,657 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (40), 6 states have call predecessors, (40), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 377 [2021-11-17 05:05:37,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:05:37,709 INFO L225 Difference]: With dead ends: 17601 [2021-11-17 05:05:37,709 INFO L226 Difference]: Without dead ends: 10390 [2021-11-17 05:05:37,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-17 05:05:37,740 INFO L933 BasicCegarLoop]: 2726 mSDtfsCounter, 2295 mSDsluCounter, 4136 mSDsCounter, 0 mSdLazyCounter, 2217 mSolverCounterSat, 2186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2572 SdHoareTripleChecker+Valid, 6862 SdHoareTripleChecker+Invalid, 4403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2186 IncrementalHoareTripleChecker+Valid, 2217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-17 05:05:37,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2572 Valid, 6862 Invalid, 4403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2186 Valid, 2217 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-17 05:05:37,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10390 states. [2021-11-17 05:05:38,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10390 to 7255. [2021-11-17 05:05:38,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7255 states, 4938 states have (on average 1.3011340623734304) internal successors, (6425), 5039 states have internal predecessors, (6425), 1911 states have call successors, (1911), 406 states have call predecessors, (1911), 405 states have return successors, (1914), 1876 states have call predecessors, (1914), 1910 states have call successors, (1914) [2021-11-17 05:05:38,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7255 states to 7255 states and 10250 transitions. [2021-11-17 05:05:38,169 INFO L78 Accepts]: Start accepts. Automaton has 7255 states and 10250 transitions. Word has length 377 [2021-11-17 05:05:38,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:05:38,169 INFO L470 AbstractCegarLoop]: Abstraction has 7255 states and 10250 transitions. [2021-11-17 05:05:38,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (40), 6 states have call predecessors, (40), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-17 05:05:38,170 INFO L276 IsEmpty]: Start isEmpty. Operand 7255 states and 10250 transitions. [2021-11-17 05:05:38,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2021-11-17 05:05:38,187 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:05:38,188 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:05:38,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 05:05:38,188 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:05:38,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:05:38,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1237143274, now seen corresponding path program 1 times [2021-11-17 05:05:38,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:05:38,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743417045] [2021-11-17 05:05:38,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:05:38,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:05:38,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:05:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:38,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:38,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:05:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:38,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:05:38,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:05:38,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:05:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:05:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:05:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:05:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 05:05:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:05:38,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 05:05:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 05:05:38,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:38,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:38,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 05:05:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 05:05:38,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:38,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 05:05:38,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 05:05:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 05:05:38,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-11-17 05:05:38,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-17 05:05:38,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-17 05:05:38,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-11-17 05:05:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-11-17 05:05:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-11-17 05:05:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-11-17 05:05:38,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:38,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-11-17 05:05:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-11-17 05:05:38,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-11-17 05:05:38,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-11-17 05:05:38,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:38,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-11-17 05:05:38,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:38,641 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2021-11-17 05:05:38,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:05:38,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743417045] [2021-11-17 05:05:38,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743417045] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:05:38,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:05:38,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 05:05:38,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890567702] [2021-11-17 05:05:38,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:05:38,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 05:05:38,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:05:38,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 05:05:38,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 05:05:38,644 INFO L87 Difference]: Start difference. First operand 7255 states and 10250 transitions. Second operand has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (40), 6 states have call predecessors, (40), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-17 05:05:43,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:05:43,967 INFO L93 Difference]: Finished difference Result 17364 states and 24671 transitions. [2021-11-17 05:05:43,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 05:05:43,968 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (40), 6 states have call predecessors, (40), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 379 [2021-11-17 05:05:43,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:05:44,014 INFO L225 Difference]: With dead ends: 17364 [2021-11-17 05:05:44,014 INFO L226 Difference]: Without dead ends: 10151 [2021-11-17 05:05:44,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-11-17 05:05:44,043 INFO L933 BasicCegarLoop]: 3214 mSDtfsCounter, 2919 mSDsluCounter, 5094 mSDsCounter, 0 mSdLazyCounter, 3963 mSolverCounterSat, 2606 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3200 SdHoareTripleChecker+Valid, 8308 SdHoareTripleChecker+Invalid, 6569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2606 IncrementalHoareTripleChecker+Valid, 3963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-11-17 05:05:44,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3200 Valid, 8308 Invalid, 6569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2606 Valid, 3963 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2021-11-17 05:05:44,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10151 states. [2021-11-17 05:05:44,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10151 to 9248. [2021-11-17 05:05:44,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9248 states, 6286 states have (on average 1.2976455615653835) internal successors, (8157), 6414 states have internal predecessors, (8157), 2431 states have call successors, (2431), 531 states have call predecessors, (2431), 530 states have return successors, (2434), 2387 states have call predecessors, (2434), 2430 states have call successors, (2434) [2021-11-17 05:05:44,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9248 states to 9248 states and 13022 transitions. [2021-11-17 05:05:44,605 INFO L78 Accepts]: Start accepts. Automaton has 9248 states and 13022 transitions. Word has length 379 [2021-11-17 05:05:44,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:05:44,606 INFO L470 AbstractCegarLoop]: Abstraction has 9248 states and 13022 transitions. [2021-11-17 05:05:44,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (40), 6 states have call predecessors, (40), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-17 05:05:44,606 INFO L276 IsEmpty]: Start isEmpty. Operand 9248 states and 13022 transitions. [2021-11-17 05:05:44,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2021-11-17 05:05:44,629 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:05:44,629 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:05:44,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 05:05:44,630 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:05:44,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:05:44,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1057159998, now seen corresponding path program 1 times [2021-11-17 05:05:44,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:05:44,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509437288] [2021-11-17 05:05:44,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:05:44,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:05:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:05:44,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:05:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:44,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:44,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:05:44,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:44,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:44,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:05:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:44,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:05:44,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:44,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:05:44,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:44,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:05:44,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:44,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:44,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:05:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 05:05:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:05:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 05:05:44,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:44,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:44,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 05:05:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:44,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:44,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 05:05:45,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:45,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:45,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:45,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:45,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:45,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 05:05:45,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:45,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:45,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:45,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:45,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:45,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 05:05:45,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:45,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 05:05:45,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:45,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 05:05:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:45,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:45,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:45,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-11-17 05:05:45,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:45,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-11-17 05:05:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:45,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 05:05:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:45,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:45,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-17 05:05:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:45,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-17 05:05:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:45,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-11-17 05:05:45,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:45,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-11-17 05:05:45,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:45,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:45,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 05:05:45,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:45,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-11-17 05:05:45,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:45,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-11-17 05:05:45,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:45,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2021-11-17 05:05:45,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:45,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:45,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:45,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-17 05:05:45,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:45,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:45,212 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2021-11-17 05:05:45,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:05:45,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509437288] [2021-11-17 05:05:45,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509437288] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:05:45,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:05:45,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 05:05:45,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849967868] [2021-11-17 05:05:45,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:05:45,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 05:05:45,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:05:45,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 05:05:45,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 05:05:45,216 INFO L87 Difference]: Start difference. First operand 9248 states and 13022 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (40), 6 states have call predecessors, (40), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-17 05:05:48,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:05:48,823 INFO L93 Difference]: Finished difference Result 19527 states and 27730 transitions. [2021-11-17 05:05:48,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 05:05:48,824 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (40), 6 states have call predecessors, (40), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 378 [2021-11-17 05:05:48,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:05:48,865 INFO L225 Difference]: With dead ends: 19527 [2021-11-17 05:05:48,866 INFO L226 Difference]: Without dead ends: 10321 [2021-11-17 05:05:48,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-17 05:05:48,899 INFO L933 BasicCegarLoop]: 1873 mSDtfsCounter, 1444 mSDsluCounter, 3589 mSDsCounter, 0 mSdLazyCounter, 2478 mSolverCounterSat, 1721 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 5462 SdHoareTripleChecker+Invalid, 4199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1721 IncrementalHoareTripleChecker+Valid, 2478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-17 05:05:48,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1517 Valid, 5462 Invalid, 4199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1721 Valid, 2478 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-11-17 05:05:48,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10321 states. [2021-11-17 05:05:49,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10321 to 9262. [2021-11-17 05:05:49,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9262 states, 6300 states have (on average 1.296984126984127) internal successors, (8171), 6428 states have internal predecessors, (8171), 2431 states have call successors, (2431), 531 states have call predecessors, (2431), 530 states have return successors, (2434), 2387 states have call predecessors, (2434), 2430 states have call successors, (2434) [2021-11-17 05:05:49,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9262 states to 9262 states and 13036 transitions. [2021-11-17 05:05:49,334 INFO L78 Accepts]: Start accepts. Automaton has 9262 states and 13036 transitions. Word has length 378 [2021-11-17 05:05:49,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:05:49,336 INFO L470 AbstractCegarLoop]: Abstraction has 9262 states and 13036 transitions. [2021-11-17 05:05:49,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (40), 6 states have call predecessors, (40), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-17 05:05:49,336 INFO L276 IsEmpty]: Start isEmpty. Operand 9262 states and 13036 transitions. [2021-11-17 05:05:49,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2021-11-17 05:05:49,357 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:05:49,357 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:05:49,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 05:05:49,358 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:05:49,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:05:49,358 INFO L85 PathProgramCache]: Analyzing trace with hash 456212830, now seen corresponding path program 1 times [2021-11-17 05:05:49,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:05:49,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092563008] [2021-11-17 05:05:49,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:05:49,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:05:49,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:05:49,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:49,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:05:49,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:49,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:05:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:49,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:49,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:05:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:49,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:05:49,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:49,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:05:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:49,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:49,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:05:49,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:49,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:05:49,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 05:05:49,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:05:49,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 05:05:49,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 05:05:49,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:49,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 05:05:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:49,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 05:05:49,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:49,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:49,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 05:05:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 05:05:49,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 05:05:49,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-11-17 05:05:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-11-17 05:05:49,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 05:05:49,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-17 05:05:49,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-17 05:05:49,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-11-17 05:05:49,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-11-17 05:05:49,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:49,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 05:05:49,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-11-17 05:05:49,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-11-17 05:05:49,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2021-11-17 05:05:49,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:49,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-17 05:05:49,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:49,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:49,883 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 881 trivial. 0 not checked. [2021-11-17 05:05:49,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:05:49,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092563008] [2021-11-17 05:05:49,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092563008] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 05:05:49,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960627868] [2021-11-17 05:05:49,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:05:49,884 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 05:05:49,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 05:05:49,887 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) [2021-11-17 05:05:49,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-17 05:05:50,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:50,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 2956 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 05:05:50,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 05:05:51,290 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 866 trivial. 0 not checked. [2021-11-17 05:05:51,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 05:05:52,005 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 881 trivial. 0 not checked. [2021-11-17 05:05:52,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960627868] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 05:05:52,005 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-17 05:05:52,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 10 [2021-11-17 05:05:52,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797828341] [2021-11-17 05:05:52,006 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-17 05:05:52,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 05:05:52,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:05:52,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 05:05:52,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-17 05:05:52,008 INFO L87 Difference]: Start difference. First operand 9262 states and 13036 transitions. Second operand has 10 states, 10 states have (on average 15.3) internal successors, (153), 6 states have internal predecessors, (153), 2 states have call successors, (61), 6 states have call predecessors, (61), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-17 05:05:56,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:05:56,507 INFO L93 Difference]: Finished difference Result 20017 states and 28451 transitions. [2021-11-17 05:05:56,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-17 05:05:56,508 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.3) internal successors, (153), 6 states have internal predecessors, (153), 2 states have call successors, (61), 6 states have call predecessors, (61), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 386 [2021-11-17 05:05:56,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:05:56,550 INFO L225 Difference]: With dead ends: 20017 [2021-11-17 05:05:56,550 INFO L226 Difference]: Without dead ends: 10797 [2021-11-17 05:05:56,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 901 GetRequests, 882 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2021-11-17 05:05:56,588 INFO L933 BasicCegarLoop]: 1882 mSDtfsCounter, 1485 mSDsluCounter, 5735 mSDsCounter, 0 mSdLazyCounter, 3826 mSolverCounterSat, 1812 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1554 SdHoareTripleChecker+Valid, 7617 SdHoareTripleChecker+Invalid, 5638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1812 IncrementalHoareTripleChecker+Valid, 3826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-17 05:05:56,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1554 Valid, 7617 Invalid, 5638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1812 Valid, 3826 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-11-17 05:05:56,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10797 states. [2021-11-17 05:05:56,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10797 to 9598. [2021-11-17 05:05:56,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9598 states, 6552 states have (on average 1.291971916971917) internal successors, (8465), 6680 states have internal predecessors, (8465), 2515 states have call successors, (2515), 531 states have call predecessors, (2515), 530 states have return successors, (2518), 2471 states have call predecessors, (2518), 2514 states have call successors, (2518) [2021-11-17 05:05:57,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9598 states to 9598 states and 13498 transitions. [2021-11-17 05:05:57,125 INFO L78 Accepts]: Start accepts. Automaton has 9598 states and 13498 transitions. Word has length 386 [2021-11-17 05:05:57,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:05:57,126 INFO L470 AbstractCegarLoop]: Abstraction has 9598 states and 13498 transitions. [2021-11-17 05:05:57,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.3) internal successors, (153), 6 states have internal predecessors, (153), 2 states have call successors, (61), 6 states have call predecessors, (61), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-17 05:05:57,126 INFO L276 IsEmpty]: Start isEmpty. Operand 9598 states and 13498 transitions. [2021-11-17 05:05:57,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2021-11-17 05:05:57,149 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:05:57,150 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:05:57,186 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-17 05:05:57,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-17 05:05:57,364 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:05:57,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:05:57,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1376111436, now seen corresponding path program 1 times [2021-11-17 05:05:57,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:05:57,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121596542] [2021-11-17 05:05:57,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:05:57,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:05:57,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:05:57,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:57,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:05:57,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:57,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:05:57,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:05:57,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:05:57,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:57,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:57,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:05:57,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:57,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:05:57,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:57,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:57,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:05:57,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 05:05:57,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:05:57,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 05:05:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 05:05:57,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:57,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 05:05:57,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:57,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:57,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 05:05:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 05:05:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 05:05:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:57,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 05:05:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:58,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:58,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:58,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-11-17 05:05:58,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:58,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-11-17 05:05:58,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:58,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 05:05:58,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:58,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:58,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-17 05:05:58,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:58,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-17 05:05:58,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:58,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-11-17 05:05:58,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:58,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-11-17 05:05:58,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:58,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:58,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:58,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 05:05:58,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:58,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-11-17 05:05:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:58,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-11-17 05:05:58,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:58,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2021-11-17 05:05:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:58,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:05:58,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:58,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-11-17 05:05:58,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:58,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:05:58,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:58,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2021-11-17 05:05:58,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:58,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:58,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:58,227 INFO L134 CoverageAnalysis]: Checked inductivity of 877 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 871 trivial. 0 not checked. [2021-11-17 05:05:58,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:05:58,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121596542] [2021-11-17 05:05:58,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121596542] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 05:05:58,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961985199] [2021-11-17 05:05:58,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:05:58,228 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 05:05:58,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 05:05:58,230 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) [2021-11-17 05:05:58,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-17 05:05:59,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:59,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 3117 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-17 05:05:59,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 05:05:59,753 INFO L134 CoverageAnalysis]: Checked inductivity of 877 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 855 trivial. 0 not checked. [2021-11-17 05:05:59,754 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 05:05:59,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961985199] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:05:59,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 05:05:59,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2021-11-17 05:05:59,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580778000] [2021-11-17 05:05:59,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:05:59,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 05:05:59,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:05:59,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 05:05:59,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-11-17 05:05:59,757 INFO L87 Difference]: Start difference. First operand 9598 states and 13498 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-17 05:06:00,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:06:00,516 INFO L93 Difference]: Finished difference Result 21625 states and 30500 transitions. [2021-11-17 05:06:00,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 05:06:00,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 396 [2021-11-17 05:06:00,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:06:00,560 INFO L225 Difference]: With dead ends: 21625 [2021-11-17 05:06:00,560 INFO L226 Difference]: Without dead ends: 12069 [2021-11-17 05:06:00,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 507 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-11-17 05:06:00,587 INFO L933 BasicCegarLoop]: 4119 mSDtfsCounter, 2573 mSDsluCounter, 6029 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2573 SdHoareTripleChecker+Valid, 10148 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-17 05:06:00,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2573 Valid, 10148 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-17 05:06:00,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12069 states. [2021-11-17 05:06:00,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12069 to 9602. [2021-11-17 05:06:00,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9602 states, 6556 states have (on average 1.2917937766931056) internal successors, (8469), 6684 states have internal predecessors, (8469), 2515 states have call successors, (2515), 531 states have call predecessors, (2515), 530 states have return successors, (2518), 2471 states have call predecessors, (2518), 2514 states have call successors, (2518) [2021-11-17 05:06:01,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9602 states to 9602 states and 13502 transitions. [2021-11-17 05:06:01,006 INFO L78 Accepts]: Start accepts. Automaton has 9602 states and 13502 transitions. Word has length 396 [2021-11-17 05:06:01,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:06:01,006 INFO L470 AbstractCegarLoop]: Abstraction has 9602 states and 13502 transitions. [2021-11-17 05:06:01,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-17 05:06:01,007 INFO L276 IsEmpty]: Start isEmpty. Operand 9602 states and 13502 transitions. [2021-11-17 05:06:01,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2021-11-17 05:06:01,025 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:06:01,026 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:06:01,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-17 05:06:01,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-17 05:06:01,248 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:06:01,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:06:01,248 INFO L85 PathProgramCache]: Analyzing trace with hash -161574961, now seen corresponding path program 1 times [2021-11-17 05:06:01,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:06:01,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950078910] [2021-11-17 05:06:01,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:06:01,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:06:01,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:06:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:01,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:06:01,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:01,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:06:01,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:01,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:06:01,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:01,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:06:01,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:06:01,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:01,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:06:01,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:01,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:06:01,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 05:06:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:06:01,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 05:06:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:01,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 05:06:01,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:01,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:01,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 05:06:01,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:01,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:01,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 05:06:01,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:01,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:01,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-17 05:06:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 05:06:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 05:06:01,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-11-17 05:06:01,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:01,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-11-17 05:06:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-17 05:06:01,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 05:06:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:01,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-17 05:06:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-11-17 05:06:01,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-11-17 05:06:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-11-17 05:06:01,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:01,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-11-17 05:06:01,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-11-17 05:06:01,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2021-11-17 05:06:01,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-11-17 05:06:01,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:06:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2021-11-17 05:06:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:06:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2021-11-17 05:06:01,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:01,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:01,808 INFO L134 CoverageAnalysis]: Checked inductivity of 877 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 855 trivial. 0 not checked. [2021-11-17 05:06:01,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:06:01,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950078910] [2021-11-17 05:06:01,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950078910] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:06:01,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:06:01,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-17 05:06:01,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035413816] [2021-11-17 05:06:01,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:06:01,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 05:06:01,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:06:01,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 05:06:01,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-17 05:06:01,811 INFO L87 Difference]: Start difference. First operand 9602 states and 13502 transitions. Second operand has 10 states, 10 states have (on average 14.3) internal successors, (143), 5 states have internal predecessors, (143), 3 states have call successors, (42), 7 states have call predecessors, (42), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-17 05:06:10,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:06:10,330 INFO L93 Difference]: Finished difference Result 22908 states and 32470 transitions. [2021-11-17 05:06:10,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-17 05:06:10,333 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.3) internal successors, (143), 5 states have internal predecessors, (143), 3 states have call successors, (42), 7 states have call predecessors, (42), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 402 [2021-11-17 05:06:10,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:06:10,373 INFO L225 Difference]: With dead ends: 22908 [2021-11-17 05:06:10,373 INFO L226 Difference]: Without dead ends: 13348 [2021-11-17 05:06:10,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2021-11-17 05:06:10,402 INFO L933 BasicCegarLoop]: 3324 mSDtfsCounter, 4317 mSDsluCounter, 9648 mSDsCounter, 0 mSdLazyCounter, 7043 mSolverCounterSat, 4567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4467 SdHoareTripleChecker+Valid, 12972 SdHoareTripleChecker+Invalid, 11610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4567 IncrementalHoareTripleChecker+Valid, 7043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2021-11-17 05:06:10,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4467 Valid, 12972 Invalid, 11610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4567 Valid, 7043 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2021-11-17 05:06:10,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13348 states. [2021-11-17 05:06:10,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13348 to 9608. [2021-11-17 05:06:10,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9608 states, 6558 states have (on average 1.2917047880451358) internal successors, (8471), 6688 states have internal predecessors, (8471), 2519 states have call successors, (2519), 531 states have call predecessors, (2519), 530 states have return successors, (2522), 2475 states have call predecessors, (2522), 2518 states have call successors, (2522) [2021-11-17 05:06:10,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9608 states to 9608 states and 13512 transitions. [2021-11-17 05:06:10,851 INFO L78 Accepts]: Start accepts. Automaton has 9608 states and 13512 transitions. Word has length 402 [2021-11-17 05:06:10,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:06:10,851 INFO L470 AbstractCegarLoop]: Abstraction has 9608 states and 13512 transitions. [2021-11-17 05:06:10,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.3) internal successors, (143), 5 states have internal predecessors, (143), 3 states have call successors, (42), 7 states have call predecessors, (42), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-17 05:06:10,852 INFO L276 IsEmpty]: Start isEmpty. Operand 9608 states and 13512 transitions. [2021-11-17 05:06:10,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2021-11-17 05:06:10,866 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:06:10,867 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:06:10,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-17 05:06:10,867 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:06:10,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:06:10,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1179725164, now seen corresponding path program 1 times [2021-11-17 05:06:10,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:06:10,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823418695] [2021-11-17 05:06:10,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:06:10,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:06:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:06:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:11,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:06:11,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:11,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:11,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:06:11,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:11,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:11,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:06:11,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:11,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:06:11,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:11,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:11,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:06:11,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:11,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:06:11,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:11,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:06:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 05:06:11,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:06:11,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 05:06:11,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:11,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 05:06:11,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 05:06:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:11,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:11,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 05:06:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:11,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:11,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 05:06:11,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-17 05:06:11,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-17 05:06:11,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-11-17 05:06:11,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:11,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-11-17 05:06:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-11-17 05:06:11,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2021-11-17 05:06:11,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-11-17 05:06:11,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-11-17 05:06:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-11-17 05:06:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-11-17 05:06:11,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2021-11-17 05:06:11,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-11-17 05:06:11,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 05:06:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2021-11-17 05:06:11,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:06:11,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-11-17 05:06:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:06:11,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2021-11-17 05:06:11,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:11,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:11,652 INFO L134 CoverageAnalysis]: Checked inductivity of 877 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 871 trivial. 0 not checked. [2021-11-17 05:06:11,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:06:11,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823418695] [2021-11-17 05:06:11,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823418695] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 05:06:11,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198421171] [2021-11-17 05:06:11,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:06:11,653 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 05:06:11,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 05:06:11,656 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) [2021-11-17 05:06:11,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-17 05:06:12,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:12,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 3156 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-17 05:06:12,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 05:06:13,072 INFO L134 CoverageAnalysis]: Checked inductivity of 877 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 855 trivial. 0 not checked. [2021-11-17 05:06:13,073 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 05:06:13,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198421171] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:06:13,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 05:06:13,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2021-11-17 05:06:13,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920872054] [2021-11-17 05:06:13,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:06:13,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 05:06:13,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:06:13,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 05:06:13,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2021-11-17 05:06:13,075 INFO L87 Difference]: Start difference. First operand 9608 states and 13512 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 3 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-17 05:06:13,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:06:13,891 INFO L93 Difference]: Finished difference Result 21650 states and 30536 transitions. [2021-11-17 05:06:13,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 05:06:13,892 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 3 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 404 [2021-11-17 05:06:13,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:06:13,932 INFO L225 Difference]: With dead ends: 21650 [2021-11-17 05:06:13,933 INFO L226 Difference]: Without dead ends: 12084 [2021-11-17 05:06:13,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 516 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-11-17 05:06:13,970 INFO L933 BasicCegarLoop]: 4082 mSDtfsCounter, 2992 mSDsluCounter, 9903 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2994 SdHoareTripleChecker+Valid, 13985 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 329 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-17 05:06:13,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2994 Valid, 13985 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [329 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-17 05:06:13,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12084 states. [2021-11-17 05:06:14,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12084 to 9600. [2021-11-17 05:06:14,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9600 states, 6554 states have (on average 1.2917302410741531) internal successors, (8466), 6682 states have internal predecessors, (8466), 2515 states have call successors, (2515), 531 states have call predecessors, (2515), 530 states have return successors, (2518), 2471 states have call predecessors, (2518), 2514 states have call successors, (2518) [2021-11-17 05:06:14,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9600 states to 9600 states and 13499 transitions. [2021-11-17 05:06:14,472 INFO L78 Accepts]: Start accepts. Automaton has 9600 states and 13499 transitions. Word has length 404 [2021-11-17 05:06:14,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:06:14,473 INFO L470 AbstractCegarLoop]: Abstraction has 9600 states and 13499 transitions. [2021-11-17 05:06:14,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 3 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-17 05:06:14,473 INFO L276 IsEmpty]: Start isEmpty. Operand 9600 states and 13499 transitions. [2021-11-17 05:06:14,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2021-11-17 05:06:14,486 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:06:14,487 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:06:14,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-17 05:06:14,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 05:06:14,688 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:06:14,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:06:14,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1972911624, now seen corresponding path program 1 times [2021-11-17 05:06:14,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:06:14,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660027483] [2021-11-17 05:06:14,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:06:14,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:06:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:06:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:14,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:06:14,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:14,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:06:14,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:14,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:06:14,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:14,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:14,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:06:14,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:14,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:14,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:06:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:14,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:06:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:06:14,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 05:06:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:06:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 05:06:14,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:14,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 05:06:14,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 05:06:14,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:14,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:14,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:14,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 05:06:15,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:15,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:15,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:15,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:15,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:15,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 05:06:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:15,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-17 05:06:15,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:15,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 05:06:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:15,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-17 05:06:15,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:15,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 05:06:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:15,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:15,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:15,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-17 05:06:15,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:15,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:15,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:15,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:15,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 05:06:15,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:15,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 05:06:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:15,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-11-17 05:06:15,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:15,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:15,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 05:06:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:15,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:15,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2021-11-17 05:06:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:15,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2021-11-17 05:06:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:15,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-17 05:06:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:15,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2021-11-17 05:06:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:15,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2021-11-17 05:06:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:15,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:06:15,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:15,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-11-17 05:06:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:15,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:06:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:15,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2021-11-17 05:06:15,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:15,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:15,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1051 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1047 trivial. 0 not checked. [2021-11-17 05:06:15,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:06:15,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660027483] [2021-11-17 05:06:15,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660027483] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:06:15,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:06:15,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 05:06:15,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917181550] [2021-11-17 05:06:15,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:06:15,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 05:06:15,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:06:15,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 05:06:15,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 05:06:15,180 INFO L87 Difference]: Start difference. First operand 9600 states and 13499 transitions. Second operand has 8 states, 8 states have (on average 20.375) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (42), 7 states have call predecessors, (42), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-17 05:06:19,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:06:19,112 INFO L93 Difference]: Finished difference Result 20757 states and 29404 transitions. [2021-11-17 05:06:19,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 05:06:19,113 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.375) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (42), 7 states have call predecessors, (42), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 433 [2021-11-17 05:06:19,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:06:19,144 INFO L225 Difference]: With dead ends: 20757 [2021-11-17 05:06:19,144 INFO L226 Difference]: Without dead ends: 11199 [2021-11-17 05:06:19,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-11-17 05:06:19,165 INFO L933 BasicCegarLoop]: 1873 mSDtfsCounter, 1538 mSDsluCounter, 4251 mSDsCounter, 0 mSdLazyCounter, 3197 mSolverCounterSat, 1786 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1638 SdHoareTripleChecker+Valid, 6124 SdHoareTripleChecker+Invalid, 4983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1786 IncrementalHoareTripleChecker+Valid, 3197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-17 05:06:19,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1638 Valid, 6124 Invalid, 4983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1786 Valid, 3197 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-11-17 05:06:19,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11199 states. [2021-11-17 05:06:19,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11199 to 9602. [2021-11-17 05:06:19,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9602 states, 6556 states have (on average 1.291641244661379) internal successors, (8468), 6684 states have internal predecessors, (8468), 2515 states have call successors, (2515), 531 states have call predecessors, (2515), 530 states have return successors, (2518), 2471 states have call predecessors, (2518), 2514 states have call successors, (2518) [2021-11-17 05:06:19,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9602 states to 9602 states and 13501 transitions. [2021-11-17 05:06:19,523 INFO L78 Accepts]: Start accepts. Automaton has 9602 states and 13501 transitions. Word has length 433 [2021-11-17 05:06:19,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:06:19,524 INFO L470 AbstractCegarLoop]: Abstraction has 9602 states and 13501 transitions. [2021-11-17 05:06:19,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.375) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (42), 7 states have call predecessors, (42), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-17 05:06:19,524 INFO L276 IsEmpty]: Start isEmpty. Operand 9602 states and 13501 transitions. [2021-11-17 05:06:19,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2021-11-17 05:06:19,540 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:06:19,541 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 7, 7, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:06:19,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-17 05:06:19,541 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:06:19,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:06:19,542 INFO L85 PathProgramCache]: Analyzing trace with hash -665626536, now seen corresponding path program 1 times [2021-11-17 05:06:19,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:06:19,542 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296590472] [2021-11-17 05:06:19,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:06:19,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:06:19,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:06:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:19,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:06:19,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:19,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:06:19,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:19,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:19,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:06:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:19,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:06:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:06:19,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:19,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:06:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:06:19,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 05:06:19,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:06:19,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 05:06:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:19,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:19,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 05:06:19,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:19,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:19,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 05:06:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:19,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 05:06:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:19,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:19,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 05:06:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-17 05:06:19,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 05:06:19,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-17 05:06:19,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 05:06:19,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:19,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-17 05:06:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:19,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:19,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 05:06:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-11-17 05:06:19,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-11-17 05:06:19,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-11-17 05:06:19,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2021-11-17 05:06:19,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2021-11-17 05:06:19,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-11-17 05:06:19,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:06:19,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2021-11-17 05:06:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:06:19,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:19,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-11-17 05:06:19,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:20,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:20,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:20,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1044 trivial. 0 not checked. [2021-11-17 05:06:20,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:06:20,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296590472] [2021-11-17 05:06:20,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296590472] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:06:20,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:06:20,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 05:06:20,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424521283] [2021-11-17 05:06:20,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:06:20,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 05:06:20,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:06:20,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 05:06:20,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 05:06:20,011 INFO L87 Difference]: Start difference. First operand 9602 states and 13501 transitions. Second operand has 8 states, 8 states have (on average 19.5) internal successors, (156), 3 states have internal predecessors, (156), 2 states have call successors, (39), 7 states have call predecessors, (39), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-17 05:06:23,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:06:23,564 INFO L93 Difference]: Finished difference Result 20763 states and 29410 transitions. [2021-11-17 05:06:23,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 05:06:23,567 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 3 states have internal predecessors, (156), 2 states have call successors, (39), 7 states have call predecessors, (39), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 418 [2021-11-17 05:06:23,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:06:23,609 INFO L225 Difference]: With dead ends: 20763 [2021-11-17 05:06:23,610 INFO L226 Difference]: Without dead ends: 11203 [2021-11-17 05:06:23,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-11-17 05:06:23,635 INFO L933 BasicCegarLoop]: 1879 mSDtfsCounter, 1887 mSDsluCounter, 3682 mSDsCounter, 0 mSdLazyCounter, 2567 mSolverCounterSat, 2300 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1986 SdHoareTripleChecker+Valid, 5561 SdHoareTripleChecker+Invalid, 4867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2300 IncrementalHoareTripleChecker+Valid, 2567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-11-17 05:06:23,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1986 Valid, 5561 Invalid, 4867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2300 Valid, 2567 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-11-17 05:06:23,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11203 states. [2021-11-17 05:06:23,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11203 to 9604. [2021-11-17 05:06:23,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9604 states, 6558 states have (on average 1.2915523025312596) internal successors, (8470), 6686 states have internal predecessors, (8470), 2515 states have call successors, (2515), 531 states have call predecessors, (2515), 530 states have return successors, (2518), 2471 states have call predecessors, (2518), 2514 states have call successors, (2518) [2021-11-17 05:06:24,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9604 states to 9604 states and 13503 transitions. [2021-11-17 05:06:24,024 INFO L78 Accepts]: Start accepts. Automaton has 9604 states and 13503 transitions. Word has length 418 [2021-11-17 05:06:24,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:06:24,025 INFO L470 AbstractCegarLoop]: Abstraction has 9604 states and 13503 transitions. [2021-11-17 05:06:24,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 3 states have internal predecessors, (156), 2 states have call successors, (39), 7 states have call predecessors, (39), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-17 05:06:24,025 INFO L276 IsEmpty]: Start isEmpty. Operand 9604 states and 13503 transitions. [2021-11-17 05:06:24,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2021-11-17 05:06:24,042 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:06:24,042 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:06:24,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-17 05:06:24,042 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:06:24,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:06:24,043 INFO L85 PathProgramCache]: Analyzing trace with hash -469590579, now seen corresponding path program 1 times [2021-11-17 05:06:24,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:06:24,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475195534] [2021-11-17 05:06:24,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:06:24,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:06:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:06:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:24,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:24,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:06:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:24,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:24,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:06:24,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:24,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:24,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:06:24,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:24,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:24,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:06:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:24,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:24,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:06:24,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:24,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:06:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:24,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:24,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:06:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 05:06:24,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:06:24,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 05:06:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:24,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:24,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 05:06:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:24,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:24,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 05:06:24,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 05:06:24,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:24,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 05:06:24,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-17 05:06:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 05:06:24,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-17 05:06:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-11-17 05:06:24,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-17 05:06:24,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-11-17 05:06:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-11-17 05:06:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2021-11-17 05:06:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2021-11-17 05:06:24,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2021-11-17 05:06:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-11-17 05:06:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-11-17 05:06:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2021-11-17 05:06:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-17 05:06:24,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:06:24,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2021-11-17 05:06:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:06:24,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2021-11-17 05:06:24,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:24,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:24,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1047 trivial. 0 not checked. [2021-11-17 05:06:24,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:06:24,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475195534] [2021-11-17 05:06:24,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475195534] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 05:06:24,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118386484] [2021-11-17 05:06:24,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:06:24,599 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 05:06:24,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 05:06:24,600 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) [2021-11-17 05:06:24,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-17 05:06:25,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:25,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 3401 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-17 05:06:25,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 05:06:25,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 848 trivial. 0 not checked. [2021-11-17 05:06:25,933 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 05:06:25,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118386484] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:06:25,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 05:06:25,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-11-17 05:06:25,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565495124] [2021-11-17 05:06:25,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:06:25,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 05:06:25,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:06:25,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 05:06:25,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-17 05:06:25,936 INFO L87 Difference]: Start difference. First operand 9604 states and 13503 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-17 05:06:26,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:06:26,301 INFO L93 Difference]: Finished difference Result 22274 states and 31835 transitions. [2021-11-17 05:06:26,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 05:06:26,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 435 [2021-11-17 05:06:26,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:06:26,344 INFO L225 Difference]: With dead ends: 22274 [2021-11-17 05:06:26,344 INFO L226 Difference]: Without dead ends: 12712 [2021-11-17 05:06:26,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 552 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-17 05:06:26,371 INFO L933 BasicCegarLoop]: 2988 mSDtfsCounter, 554 mSDsluCounter, 2262 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 5250 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 [2021-11-17 05:06:26,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [729 Valid, 5250 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 05:06:26,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12712 states. [2021-11-17 05:06:26,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12712 to 9606. [2021-11-17 05:06:26,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9606 states, 6560 states have (on average 1.2914634146341464) internal successors, (8472), 6688 states have internal predecessors, (8472), 2515 states have call successors, (2515), 531 states have call predecessors, (2515), 530 states have return successors, (2518), 2471 states have call predecessors, (2518), 2514 states have call successors, (2518) [2021-11-17 05:06:26,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9606 states to 9606 states and 13505 transitions. [2021-11-17 05:06:26,825 INFO L78 Accepts]: Start accepts. Automaton has 9606 states and 13505 transitions. Word has length 435 [2021-11-17 05:06:26,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:06:26,825 INFO L470 AbstractCegarLoop]: Abstraction has 9606 states and 13505 transitions. [2021-11-17 05:06:26,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-17 05:06:26,826 INFO L276 IsEmpty]: Start isEmpty. Operand 9606 states and 13505 transitions. [2021-11-17 05:06:26,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2021-11-17 05:06:26,839 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:06:26,839 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 7, 7, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:06:26,862 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-17 05:06:27,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-17 05:06:27,040 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:06:27,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:06:27,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1871016904, now seen corresponding path program 1 times [2021-11-17 05:06:27,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:06:27,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863688374] [2021-11-17 05:06:27,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:06:27,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:06:27,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:06:27,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:27,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:27,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:06:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:27,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:27,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:06:27,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:27,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:27,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:06:27,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:27,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:27,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:06:27,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:27,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:06:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:27,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:06:27,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:27,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:06:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 05:06:27,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:06:27,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 05:06:27,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:27,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:27,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 05:06:27,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:27,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 05:06:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:27,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:27,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 05:06:27,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 05:06:27,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-17 05:06:27,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 05:06:27,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-17 05:06:27,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-11-17 05:06:27,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 05:06:27,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 05:06:27,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 05:06:27,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-11-17 05:06:27,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:27,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-11-17 05:06:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:27,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:27,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-11-17 05:06:27,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-11-17 05:06:27,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-11-17 05:06:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2021-11-17 05:06:27,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-11-17 05:06:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2021-11-17 05:06:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2021-11-17 05:06:27,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:06:27,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2021-11-17 05:06:27,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:06:27,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2021-11-17 05:06:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:27,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:27,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1057 trivial. 0 not checked. [2021-11-17 05:06:27,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:06:27,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863688374] [2021-11-17 05:06:27,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863688374] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 05:06:27,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554725841] [2021-11-17 05:06:27,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:06:27,569 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 05:06:27,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 05:06:27,570 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) [2021-11-17 05:06:27,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-17 05:06:28,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:28,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 3456 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-17 05:06:28,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 05:06:28,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 225 proven. 0 refuted. 0 times theorem prover too weak. 837 trivial. 0 not checked. [2021-11-17 05:06:28,864 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 05:06:28,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554725841] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:06:28,864 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 05:06:28,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-11-17 05:06:28,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314041092] [2021-11-17 05:06:28,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:06:28,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 05:06:28,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:06:28,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 05:06:28,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-17 05:06:28,866 INFO L87 Difference]: Start difference. First operand 9606 states and 13505 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 3 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-11-17 05:06:29,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:06:29,300 INFO L93 Difference]: Finished difference Result 24305 states and 34169 transitions. [2021-11-17 05:06:29,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 05:06:29,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 3 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 452 [2021-11-17 05:06:29,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:06:29,355 INFO L225 Difference]: With dead ends: 24305 [2021-11-17 05:06:29,355 INFO L226 Difference]: Without dead ends: 14741 [2021-11-17 05:06:29,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 581 GetRequests, 573 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-17 05:06:29,382 INFO L933 BasicCegarLoop]: 2407 mSDtfsCounter, 1676 mSDsluCounter, 1920 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1676 SdHoareTripleChecker+Valid, 4327 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 05:06:29,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1676 Valid, 4327 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 05:06:29,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14741 states. [2021-11-17 05:06:29,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14741 to 14727. [2021-11-17 05:06:29,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14727 states, 10120 states have (on average 1.2860671936758894) internal successors, (13015), 10315 states have internal predecessors, (13015), 3790 states have call successors, (3790), 817 states have call predecessors, (3790), 816 states have return successors, (3797), 3720 states have call predecessors, (3797), 3789 states have call successors, (3797) [2021-11-17 05:06:29,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14727 states to 14727 states and 20602 transitions. [2021-11-17 05:06:29,993 INFO L78 Accepts]: Start accepts. Automaton has 14727 states and 20602 transitions. Word has length 452 [2021-11-17 05:06:29,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:06:29,993 INFO L470 AbstractCegarLoop]: Abstraction has 14727 states and 20602 transitions. [2021-11-17 05:06:29,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 3 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-11-17 05:06:29,993 INFO L276 IsEmpty]: Start isEmpty. Operand 14727 states and 20602 transitions. [2021-11-17 05:06:30,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2021-11-17 05:06:30,010 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:06:30,011 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 7, 7, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:06:30,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-17 05:06:30,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-17 05:06:30,212 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:06:30,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:06:30,212 INFO L85 PathProgramCache]: Analyzing trace with hash -336581228, now seen corresponding path program 1 times [2021-11-17 05:06:30,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:06:30,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968518466] [2021-11-17 05:06:30,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:06:30,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:06:30,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:06:30,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:30,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:06:30,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:06:30,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:30,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:06:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:06:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:30,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:06:30,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:06:30,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:30,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:06:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 05:06:30,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:06:30,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 05:06:30,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:30,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 05:06:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 05:06:30,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:30,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 05:06:30,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:30,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 05:06:30,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-17 05:06:30,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 05:06:30,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-17 05:06:30,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-11-17 05:06:30,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:30,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 05:06:30,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 05:06:30,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 05:06:30,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-11-17 05:06:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-11-17 05:06:30,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-11-17 05:06:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-17 05:06:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2021-11-17 05:06:30,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:30,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2021-11-17 05:06:30,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2021-11-17 05:06:30,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2021-11-17 05:06:30,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2021-11-17 05:06:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:06:30,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2021-11-17 05:06:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:06:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-11-17 05:06:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:30,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1057 trivial. 0 not checked. [2021-11-17 05:06:30,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:06:30,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968518466] [2021-11-17 05:06:30,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968518466] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 05:06:30,630 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751039487] [2021-11-17 05:06:30,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:06:30,630 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 05:06:30,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 05:06:30,632 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) [2021-11-17 05:06:30,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-17 05:06:31,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:31,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 3454 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 05:06:31,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 05:06:31,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 192 proven. 1 refuted. 0 times theorem prover too weak. 869 trivial. 0 not checked. [2021-11-17 05:06:31,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 05:06:32,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1057 trivial. 0 not checked. [2021-11-17 05:06:32,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751039487] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 05:06:32,548 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-17 05:06:32,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4, 4] total 12 [2021-11-17 05:06:32,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615344681] [2021-11-17 05:06:32,549 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-17 05:06:32,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-17 05:06:32,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:06:32,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-17 05:06:32,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-11-17 05:06:32,551 INFO L87 Difference]: Start difference. First operand 14727 states and 20602 transitions. Second operand has 12 states, 12 states have (on average 19.583333333333332) internal successors, (235), 7 states have internal predecessors, (235), 2 states have call successors, (92), 7 states have call predecessors, (92), 2 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2021-11-17 05:06:37,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:06:37,987 INFO L93 Difference]: Finished difference Result 32124 states and 45181 transitions. [2021-11-17 05:06:37,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 05:06:37,988 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 19.583333333333332) internal successors, (235), 7 states have internal predecessors, (235), 2 states have call successors, (92), 7 states have call predecessors, (92), 2 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 450 [2021-11-17 05:06:37,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:06:38,042 INFO L225 Difference]: With dead ends: 32124 [2021-11-17 05:06:38,042 INFO L226 Difference]: Without dead ends: 17439 [2021-11-17 05:06:38,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1036 GetRequests, 1022 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2021-11-17 05:06:38,075 INFO L933 BasicCegarLoop]: 1864 mSDtfsCounter, 1454 mSDsluCounter, 9229 mSDsCounter, 0 mSdLazyCounter, 5992 mSolverCounterSat, 1738 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1554 SdHoareTripleChecker+Valid, 11093 SdHoareTripleChecker+Invalid, 7730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1738 IncrementalHoareTripleChecker+Valid, 5992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-17 05:06:38,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1554 Valid, 11093 Invalid, 7730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1738 Valid, 5992 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2021-11-17 05:06:38,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17439 states. [2021-11-17 05:06:38,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17439 to 14754. [2021-11-17 05:06:38,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14754 states, 10147 states have (on average 1.2853060017739233) internal successors, (13042), 10342 states have internal predecessors, (13042), 3790 states have call successors, (3790), 817 states have call predecessors, (3790), 816 states have return successors, (3797), 3720 states have call predecessors, (3797), 3789 states have call successors, (3797) [2021-11-17 05:06:38,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14754 states to 14754 states and 20629 transitions. [2021-11-17 05:06:38,601 INFO L78 Accepts]: Start accepts. Automaton has 14754 states and 20629 transitions. Word has length 450 [2021-11-17 05:06:38,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:06:38,601 INFO L470 AbstractCegarLoop]: Abstraction has 14754 states and 20629 transitions. [2021-11-17 05:06:38,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 19.583333333333332) internal successors, (235), 7 states have internal predecessors, (235), 2 states have call successors, (92), 7 states have call predecessors, (92), 2 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2021-11-17 05:06:38,602 INFO L276 IsEmpty]: Start isEmpty. Operand 14754 states and 20629 transitions. [2021-11-17 05:06:38,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2021-11-17 05:06:38,618 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:06:38,619 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 7, 7, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:06:38,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-17 05:06:38,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-17 05:06:38,824 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:06:38,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:06:38,824 INFO L85 PathProgramCache]: Analyzing trace with hash -528514820, now seen corresponding path program 2 times [2021-11-17 05:06:38,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:06:38,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903996260] [2021-11-17 05:06:38,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:06:38,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:06:38,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:06:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:39,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:39,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:06:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:39,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:06:39,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:39,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:39,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:06:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:06:39,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:06:39,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:39,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:39,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:06:39,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:39,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:39,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:06:39,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 05:06:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:06:39,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 05:06:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 05:06:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:39,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:39,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 05:06:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:39,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 05:06:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:39,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:39,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 05:06:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-17 05:06:39,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 05:06:39,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-11-17 05:06:39,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-11-17 05:06:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 05:06:39,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 05:06:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 05:06:39,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-11-17 05:06:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-11-17 05:06:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:39,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:39,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2021-11-17 05:06:39,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2021-11-17 05:06:39,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2021-11-17 05:06:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:39,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2021-11-17 05:06:39,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-11-17 05:06:39,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2021-11-17 05:06:39,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2021-11-17 05:06:39,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:06:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2021-11-17 05:06:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:06:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2021-11-17 05:06:39,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:39,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:39,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1083 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1078 trivial. 0 not checked. [2021-11-17 05:06:39,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:06:39,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903996260] [2021-11-17 05:06:39,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903996260] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:06:39,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:06:39,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-17 05:06:39,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537571081] [2021-11-17 05:06:39,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:06:39,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 05:06:39,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:06:39,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 05:06:39,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-17 05:06:39,422 INFO L87 Difference]: Start difference. First operand 14754 states and 20629 transitions. Second operand has 10 states, 10 states have (on average 17.2) internal successors, (172), 4 states have internal predecessors, (172), 2 states have call successors, (44), 7 states have call predecessors, (44), 2 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-17 05:06:44,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:06:44,679 INFO L93 Difference]: Finished difference Result 36479 states and 52314 transitions. [2021-11-17 05:06:44,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 05:06:44,680 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.2) internal successors, (172), 4 states have internal predecessors, (172), 2 states have call successors, (44), 7 states have call predecessors, (44), 2 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) Word has length 459 [2021-11-17 05:06:44,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:06:44,752 INFO L225 Difference]: With dead ends: 36479 [2021-11-17 05:06:44,752 INFO L226 Difference]: Without dead ends: 21767 [2021-11-17 05:06:44,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-11-17 05:06:44,793 INFO L933 BasicCegarLoop]: 2770 mSDtfsCounter, 2795 mSDsluCounter, 10133 mSDsCounter, 0 mSdLazyCounter, 4483 mSolverCounterSat, 2845 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3101 SdHoareTripleChecker+Valid, 12903 SdHoareTripleChecker+Invalid, 7328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2845 IncrementalHoareTripleChecker+Valid, 4483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-17 05:06:44,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3101 Valid, 12903 Invalid, 7328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2845 Valid, 4483 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-11-17 05:06:44,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21767 states. [2021-11-17 05:06:45,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21767 to 14766. [2021-11-17 05:06:45,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14766 states, 10156 states have (on average 1.2850531705395825) internal successors, (13051), 10351 states have internal predecessors, (13051), 3790 states have call successors, (3790), 817 states have call predecessors, (3790), 819 states have return successors, (3807), 3723 states have call predecessors, (3807), 3789 states have call successors, (3807) [2021-11-17 05:06:45,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14766 states to 14766 states and 20648 transitions. [2021-11-17 05:06:45,471 INFO L78 Accepts]: Start accepts. Automaton has 14766 states and 20648 transitions. Word has length 459 [2021-11-17 05:06:45,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:06:45,472 INFO L470 AbstractCegarLoop]: Abstraction has 14766 states and 20648 transitions. [2021-11-17 05:06:45,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.2) internal successors, (172), 4 states have internal predecessors, (172), 2 states have call successors, (44), 7 states have call predecessors, (44), 2 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-17 05:06:45,472 INFO L276 IsEmpty]: Start isEmpty. Operand 14766 states and 20648 transitions. [2021-11-17 05:06:45,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2021-11-17 05:06:45,488 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:06:45,489 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 7, 7, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:06:45,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-17 05:06:45,489 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:06:45,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:06:45,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1662912194, now seen corresponding path program 1 times [2021-11-17 05:06:45,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:06:45,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097260715] [2021-11-17 05:06:45,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:06:45,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:06:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:06:45,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:45,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:06:45,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:45,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:45,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:06:45,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:45,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:06:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:45,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:06:45,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:45,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:06:45,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:45,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:45,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:06:45,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:45,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:45,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:06:45,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 05:06:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:06:45,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 05:06:45,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:45,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 05:06:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:45,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 05:06:45,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:45,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:45,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 05:06:45,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:45,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:45,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 05:06:45,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-17 05:06:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 05:06:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-11-17 05:06:45,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-11-17 05:06:45,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 05:06:45,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 05:06:45,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 05:06:45,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-11-17 05:06:45,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:45,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2021-11-17 05:06:45,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:45,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:45,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2021-11-17 05:06:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2021-11-17 05:06:45,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-11-17 05:06:45,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2021-11-17 05:06:45,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-11-17 05:06:45,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-11-17 05:06:45,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2021-11-17 05:06:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:06:45,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2021-11-17 05:06:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:06:45,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2021-11-17 05:06:45,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:45,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1083 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1078 trivial. 0 not checked. [2021-11-17 05:06:45,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:06:45,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097260715] [2021-11-17 05:06:45,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097260715] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 05:06:45,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856462386] [2021-11-17 05:06:45,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:06:45,918 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 05:06:45,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 05:06:45,919 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) [2021-11-17 05:06:45,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-17 05:06:46,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:46,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 3525 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-17 05:06:46,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 05:06:47,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1083 backedges. 192 proven. 22 refuted. 0 times theorem prover too weak. 869 trivial. 0 not checked. [2021-11-17 05:06:47,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 05:06:47,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1083 backedges. 4 proven. 22 refuted. 0 times theorem prover too weak. 1057 trivial. 0 not checked. [2021-11-17 05:06:47,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856462386] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 05:06:47,955 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-17 05:06:47,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 15 [2021-11-17 05:06:47,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932432311] [2021-11-17 05:06:47,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-17 05:06:47,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-17 05:06:47,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:06:47,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-17 05:06:47,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2021-11-17 05:06:47,957 INFO L87 Difference]: Start difference. First operand 14766 states and 20648 transitions. Second operand has 15 states, 15 states have (on average 17.2) internal successors, (258), 10 states have internal predecessors, (258), 3 states have call successors, (93), 7 states have call predecessors, (93), 2 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) [2021-11-17 05:06:55,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:06:55,894 INFO L93 Difference]: Finished difference Result 40848 states and 59469 transitions. [2021-11-17 05:06:55,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-17 05:06:55,895 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 17.2) internal successors, (258), 10 states have internal predecessors, (258), 3 states have call successors, (93), 7 states have call predecessors, (93), 2 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) Word has length 460 [2021-11-17 05:06:55,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:06:55,989 INFO L225 Difference]: With dead ends: 40848 [2021-11-17 05:06:55,989 INFO L226 Difference]: Without dead ends: 26124 [2021-11-17 05:06:56,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1068 GetRequests, 1039 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=206, Invalid=724, Unknown=0, NotChecked=0, Total=930 [2021-11-17 05:06:56,033 INFO L933 BasicCegarLoop]: 2764 mSDtfsCounter, 3149 mSDsluCounter, 12342 mSDsCounter, 0 mSdLazyCounter, 7359 mSolverCounterSat, 2158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3671 SdHoareTripleChecker+Valid, 15106 SdHoareTripleChecker+Invalid, 9517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2158 IncrementalHoareTripleChecker+Valid, 7359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-17 05:06:56,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3671 Valid, 15106 Invalid, 9517 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2158 Valid, 7359 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2021-11-17 05:06:56,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26124 states. [2021-11-17 05:06:56,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26124 to 14814. [2021-11-17 05:06:56,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14814 states, 10198 states have (on average 1.2844675426554226) internal successors, (13099), 10390 states have internal predecessors, (13099), 3796 states have call successors, (3796), 817 states have call predecessors, (3796), 819 states have return successors, (3819), 3732 states have call predecessors, (3819), 3795 states have call successors, (3819) [2021-11-17 05:06:56,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14814 states to 14814 states and 20714 transitions. [2021-11-17 05:06:56,851 INFO L78 Accepts]: Start accepts. Automaton has 14814 states and 20714 transitions. Word has length 460 [2021-11-17 05:06:56,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:06:56,851 INFO L470 AbstractCegarLoop]: Abstraction has 14814 states and 20714 transitions. [2021-11-17 05:06:56,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 17.2) internal successors, (258), 10 states have internal predecessors, (258), 3 states have call successors, (93), 7 states have call predecessors, (93), 2 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) [2021-11-17 05:06:56,852 INFO L276 IsEmpty]: Start isEmpty. Operand 14814 states and 20714 transitions. [2021-11-17 05:06:56,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2021-11-17 05:06:56,869 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:06:56,870 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 7, 7, 6, 6, 6, 5, 5, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:06:56,896 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-17 05:06:57,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 05:06:57,081 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:06:57,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:06:57,081 INFO L85 PathProgramCache]: Analyzing trace with hash 620175313, now seen corresponding path program 1 times [2021-11-17 05:06:57,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:06:57,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975138427] [2021-11-17 05:06:57,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:06:57,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:06:57,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:06:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:57,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:57,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:06:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:57,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:06:57,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:57,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:06:57,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:57,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:57,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:06:57,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:06:57,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:57,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:06:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:06:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 05:06:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:06:57,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 05:06:57,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:57,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:57,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 05:06:57,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:57,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:57,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 05:06:57,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:57,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 05:06:57,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:57,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:57,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 05:06:57,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-17 05:06:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 05:06:57,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-11-17 05:06:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-11-17 05:06:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 05:06:57,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 05:06:57,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 05:06:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-11-17 05:06:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 05:06:57,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 05:06:57,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 05:06:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2021-11-17 05:06:57,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-17 05:06:57,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:57,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:06:57,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-11-17 05:06:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2021-11-17 05:06:57,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2021-11-17 05:06:57,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2021-11-17 05:06:57,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-11-17 05:06:57,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2021-11-17 05:06:57,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2021-11-17 05:06:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:06:57,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2021-11-17 05:06:57,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:06:57,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2021-11-17 05:06:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:06:57,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:57,851 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 1144 trivial. 0 not checked. [2021-11-17 05:06:57,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:06:57,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975138427] [2021-11-17 05:06:57,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975138427] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 05:06:57,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004370683] [2021-11-17 05:06:57,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:06:57,853 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 05:06:57,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 05:06:57,854 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) [2021-11-17 05:06:57,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-17 05:06:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:06:58,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 3684 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-17 05:06:59,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 05:06:59,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 984 trivial. 0 not checked. [2021-11-17 05:06:59,715 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 05:06:59,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004370683] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:06:59,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 05:06:59,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 11 [2021-11-17 05:06:59,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281966296] [2021-11-17 05:06:59,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:06:59,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 05:06:59,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:06:59,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 05:06:59,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-17 05:06:59,717 INFO L87 Difference]: Start difference. First operand 14814 states and 20714 transitions. Second operand has 6 states, 6 states have (on average 30.666666666666668) internal successors, (184), 5 states have internal predecessors, (184), 2 states have call successors, (47), 2 states have call predecessors, (47), 3 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-17 05:07:01,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:07:01,063 INFO L93 Difference]: Finished difference Result 31335 states and 44047 transitions. [2021-11-17 05:07:01,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 05:07:01,063 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.666666666666668) internal successors, (184), 5 states have internal predecessors, (184), 2 states have call successors, (47), 2 states have call predecessors, (47), 3 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) Word has length 491 [2021-11-17 05:07:01,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:07:01,120 INFO L225 Difference]: With dead ends: 31335 [2021-11-17 05:07:01,121 INFO L226 Difference]: Without dead ends: 16563 [2021-11-17 05:07:01,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 625 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-17 05:07:01,156 INFO L933 BasicCegarLoop]: 3035 mSDtfsCounter, 1145 mSDsluCounter, 11152 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1276 SdHoareTripleChecker+Valid, 14187 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-17 05:07:01,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1276 Valid, 14187 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [262 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-17 05:07:01,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16563 states. [2021-11-17 05:07:01,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16563 to 14829. [2021-11-17 05:07:01,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14829 states, 10210 states have (on average 1.2841332027424095) internal successors, (13111), 10402 states have internal predecessors, (13111), 3796 states have call successors, (3796), 817 states have call predecessors, (3796), 822 states have return successors, (3829), 3735 states have call predecessors, (3829), 3795 states have call successors, (3829) [2021-11-17 05:07:01,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14829 states to 14829 states and 20736 transitions. [2021-11-17 05:07:01,705 INFO L78 Accepts]: Start accepts. Automaton has 14829 states and 20736 transitions. Word has length 491 [2021-11-17 05:07:01,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:07:01,705 INFO L470 AbstractCegarLoop]: Abstraction has 14829 states and 20736 transitions. [2021-11-17 05:07:01,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.666666666666668) internal successors, (184), 5 states have internal predecessors, (184), 2 states have call successors, (47), 2 states have call predecessors, (47), 3 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-17 05:07:01,705 INFO L276 IsEmpty]: Start isEmpty. Operand 14829 states and 20736 transitions. [2021-11-17 05:07:01,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2021-11-17 05:07:01,722 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:07:01,723 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 7, 7, 6, 6, 6, 5, 5, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:07:01,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-17 05:07:01,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-11-17 05:07:01,924 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:07:01,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:07:01,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1489006082, now seen corresponding path program 1 times [2021-11-17 05:07:01,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:07:01,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149100193] [2021-11-17 05:07:01,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:07:01,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:07:02,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:07:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:02,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:02,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:07:02,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:07:02,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:02,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:07:02,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:02,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:07:02,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:02,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:07:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:02,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:07:02,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:07:02,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 05:07:02,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:07:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 05:07:02,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:02,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:02,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 05:07:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:02,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:02,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 05:07:02,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:02,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:02,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 05:07:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:02,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:02,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 05:07:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:07:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-17 05:07:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2021-11-17 05:07:02,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-11-17 05:07:02,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-11-17 05:07:02,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:02,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 05:07:02,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 05:07:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 05:07:02,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-11-17 05:07:02,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 05:07:02,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 05:07:02,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 05:07:02,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-11-17 05:07:02,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2021-11-17 05:07:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:02,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:02,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2021-11-17 05:07:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2021-11-17 05:07:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2021-11-17 05:07:02,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:02,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2021-11-17 05:07:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 05:07:02,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2021-11-17 05:07:02,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2021-11-17 05:07:02,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:07:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2021-11-17 05:07:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:07:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2021-11-17 05:07:02,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:02,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:02,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1202 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 1192 trivial. 0 not checked. [2021-11-17 05:07:02,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:07:02,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149100193] [2021-11-17 05:07:02,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149100193] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 05:07:02,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885040381] [2021-11-17 05:07:02,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:07:02,504 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 05:07:02,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 05:07:02,505 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) [2021-11-17 05:07:02,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-17 05:07:03,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:03,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 3706 conjuncts, 96 conjunts are in the unsatisfiable core [2021-11-17 05:07:03,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 05:07:04,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-17 05:07:04,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-17 05:07:04,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-17 05:07:04,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-17 05:07:04,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-17 05:07:05,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-17 05:07:05,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 15 [2021-11-17 05:07:05,417 INFO L354 Elim1Store]: treesize reduction 16, result has 23.8 percent of original size [2021-11-17 05:07:05,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-17 05:07:05,431 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-17 05:07:05,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 33 [2021-11-17 05:07:05,510 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-17 05:07:05,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 23 [2021-11-17 05:07:05,515 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-17 05:07:05,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 11 [2021-11-17 05:07:05,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-17 05:07:05,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2021-11-17 05:07:05,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2021-11-17 05:07:05,741 INFO L354 Elim1Store]: treesize reduction 38, result has 22.4 percent of original size [2021-11-17 05:07:05,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2021-11-17 05:07:05,769 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-17 05:07:05,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 44 treesize of output 55 [2021-11-17 05:07:05,908 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-17 05:07:05,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 40 [2021-11-17 05:07:05,915 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-17 05:07:05,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 25 [2021-11-17 05:07:05,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-17 05:07:05,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2021-11-17 05:07:06,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2021-11-17 05:07:06,151 INFO L354 Elim1Store]: treesize reduction 78, result has 26.4 percent of original size [2021-11-17 05:07:06,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 64 treesize of output 82 [2021-11-17 05:07:06,184 INFO L354 Elim1Store]: treesize reduction 69, result has 18.8 percent of original size [2021-11-17 05:07:06,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 78 [2021-11-17 05:07:07,064 INFO L354 Elim1Store]: treesize reduction 120, result has 23.6 percent of original size [2021-11-17 05:07:07,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 74 treesize of output 99 [2021-11-17 05:07:08,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1202 backedges. 606 proven. 15 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-11-17 05:07:08,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 05:07:09,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885040381] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 05:07:09,136 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-17 05:07:09,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 22] total 31 [2021-11-17 05:07:09,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023098084] [2021-11-17 05:07:09,136 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-17 05:07:09,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-17 05:07:09,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:07:09,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-17 05:07:09,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=885, Unknown=1, NotChecked=0, Total=992 [2021-11-17 05:07:09,138 INFO L87 Difference]: Start difference. First operand 14829 states and 20736 transitions. Second operand has 31 states, 29 states have (on average 9.758620689655173) internal successors, (283), 20 states have internal predecessors, (283), 9 states have call successors, (92), 11 states have call predecessors, (92), 8 states have return successors, (76), 10 states have call predecessors, (76), 9 states have call successors, (76) [2021-11-17 05:07:19,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:07:19,913 INFO L93 Difference]: Finished difference Result 37367 states and 53761 transitions. [2021-11-17 05:07:19,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-17 05:07:19,915 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 29 states have (on average 9.758620689655173) internal successors, (283), 20 states have internal predecessors, (283), 9 states have call successors, (92), 11 states have call predecessors, (92), 8 states have return successors, (76), 10 states have call predecessors, (76), 9 states have call successors, (76) Word has length 497 [2021-11-17 05:07:19,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:07:19,986 INFO L225 Difference]: With dead ends: 37367 [2021-11-17 05:07:19,986 INFO L226 Difference]: Without dead ends: 22580 [2021-11-17 05:07:20,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 915 GetRequests, 859 SyntacticMatches, 9 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 675 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=229, Invalid=2122, Unknown=1, NotChecked=0, Total=2352 [2021-11-17 05:07:20,033 INFO L933 BasicCegarLoop]: 3118 mSDtfsCounter, 2855 mSDsluCounter, 28253 mSDsCounter, 0 mSdLazyCounter, 12268 mSolverCounterSat, 2137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3219 SdHoareTripleChecker+Valid, 31371 SdHoareTripleChecker+Invalid, 16370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2137 IncrementalHoareTripleChecker+Valid, 12268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1965 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2021-11-17 05:07:20,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3219 Valid, 31371 Invalid, 16370 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2137 Valid, 12268 Invalid, 0 Unknown, 1965 Unchecked, 9.3s Time] [2021-11-17 05:07:20,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22580 states. [2021-11-17 05:07:20,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22580 to 15167. [2021-11-17 05:07:20,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15167 states, 10545 states have (on average 1.2935040303461356) internal successors, (13640), 10736 states have internal predecessors, (13640), 3796 states have call successors, (3796), 820 states have call predecessors, (3796), 825 states have return successors, (3829), 3736 states have call predecessors, (3829), 3795 states have call successors, (3829) [2021-11-17 05:07:20,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15167 states to 15167 states and 21265 transitions. [2021-11-17 05:07:20,722 INFO L78 Accepts]: Start accepts. Automaton has 15167 states and 21265 transitions. Word has length 497 [2021-11-17 05:07:20,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:07:20,722 INFO L470 AbstractCegarLoop]: Abstraction has 15167 states and 21265 transitions. [2021-11-17 05:07:20,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 29 states have (on average 9.758620689655173) internal successors, (283), 20 states have internal predecessors, (283), 9 states have call successors, (92), 11 states have call predecessors, (92), 8 states have return successors, (76), 10 states have call predecessors, (76), 9 states have call successors, (76) [2021-11-17 05:07:20,723 INFO L276 IsEmpty]: Start isEmpty. Operand 15167 states and 21265 transitions. [2021-11-17 05:07:20,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2021-11-17 05:07:20,742 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:07:20,742 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 7, 7, 6, 6, 6, 5, 5, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:07:20,767 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-11-17 05:07:20,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 05:07:20,943 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:07:20,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:07:20,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1738419491, now seen corresponding path program 1 times [2021-11-17 05:07:20,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:07:20,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831170570] [2021-11-17 05:07:20,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:07:20,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:07:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:07:21,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:21,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:21,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:07:21,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:21,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:21,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:07:21,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:21,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:21,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:07:21,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:21,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:21,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:07:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:21,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:07:21,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:21,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:21,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:07:21,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:21,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:21,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:07:21,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 05:07:21,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:07:21,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 05:07:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 05:07:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:21,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 05:07:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:21,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 05:07:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:21,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:21,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-17 05:07:21,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:07:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2021-11-17 05:07:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-11-17 05:07:21,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:07:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-11-17 05:07:21,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2021-11-17 05:07:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 05:07:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 05:07:21,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 05:07:21,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-11-17 05:07:21,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 05:07:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 05:07:21,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 05:07:21,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2021-11-17 05:07:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:21,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2021-11-17 05:07:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:21,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2021-11-17 05:07:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2021-11-17 05:07:21,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2021-11-17 05:07:21,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:21,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2021-11-17 05:07:21,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2021-11-17 05:07:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2021-11-17 05:07:21,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2021-11-17 05:07:21,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:07:21,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 475 [2021-11-17 05:07:21,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:07:21,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2021-11-17 05:07:21,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:21,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1268 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2021-11-17 05:07:21,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:07:21,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831170570] [2021-11-17 05:07:21,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831170570] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:07:21,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:07:21,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 05:07:21,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944245898] [2021-11-17 05:07:21,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:07:21,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 05:07:21,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:07:21,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 05:07:21,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-17 05:07:21,544 INFO L87 Difference]: Start difference. First operand 15167 states and 21265 transitions. Second operand has 9 states, 9 states have (on average 20.333333333333332) internal successors, (183), 4 states have internal predecessors, (183), 4 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2021-11-17 05:07:28,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:07:28,647 INFO L93 Difference]: Finished difference Result 35424 states and 49894 transitions. [2021-11-17 05:07:28,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-17 05:07:28,648 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.333333333333332) internal successors, (183), 4 states have internal predecessors, (183), 4 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) Word has length 510 [2021-11-17 05:07:28,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:07:28,837 INFO L225 Difference]: With dead ends: 35424 [2021-11-17 05:07:28,838 INFO L226 Difference]: Without dead ends: 20297 [2021-11-17 05:07:28,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2021-11-17 05:07:28,865 INFO L933 BasicCegarLoop]: 2916 mSDtfsCounter, 4193 mSDsluCounter, 6025 mSDsCounter, 0 mSdLazyCounter, 5118 mSolverCounterSat, 3962 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4471 SdHoareTripleChecker+Valid, 8941 SdHoareTripleChecker+Invalid, 9080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3962 IncrementalHoareTripleChecker+Valid, 5118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2021-11-17 05:07:28,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4471 Valid, 8941 Invalid, 9080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3962 Valid, 5118 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2021-11-17 05:07:28,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20297 states. [2021-11-17 05:07:29,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20297 to 17328. [2021-11-17 05:07:29,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17328 states, 12136 states have (on average 1.2940013183915622) internal successors, (15704), 12355 states have internal predecessors, (15704), 4254 states have call successors, (4254), 928 states have call predecessors, (4254), 937 states have return successors, (4303), 4189 states have call predecessors, (4303), 4253 states have call successors, (4303) [2021-11-17 05:07:29,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17328 states to 17328 states and 24261 transitions. [2021-11-17 05:07:29,589 INFO L78 Accepts]: Start accepts. Automaton has 17328 states and 24261 transitions. Word has length 510 [2021-11-17 05:07:29,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:07:29,589 INFO L470 AbstractCegarLoop]: Abstraction has 17328 states and 24261 transitions. [2021-11-17 05:07:29,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.333333333333332) internal successors, (183), 4 states have internal predecessors, (183), 4 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2021-11-17 05:07:29,589 INFO L276 IsEmpty]: Start isEmpty. Operand 17328 states and 24261 transitions. [2021-11-17 05:07:29,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2021-11-17 05:07:29,611 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:07:29,611 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 7, 7, 6, 6, 6, 5, 5, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:07:29,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-17 05:07:29,612 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:07:29,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:07:29,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1939873980, now seen corresponding path program 1 times [2021-11-17 05:07:29,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:07:29,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776379351] [2021-11-17 05:07:29,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:07:29,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:07:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:07:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:29,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:07:29,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:29,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:07:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:07:29,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:07:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:29,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:07:29,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:07:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:07:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 05:07:29,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:07:29,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 05:07:29,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:29,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:29,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 05:07:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:29,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:29,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:29,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 05:07:29,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:30,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 05:07:30,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:30,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:30,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-17 05:07:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:07:30,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 05:07:30,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-17 05:07:30,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:07:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-17 05:07:30,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 05:07:30,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 05:07:30,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 05:07:30,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 05:07:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2021-11-17 05:07:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 05:07:30,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 05:07:30,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 05:07:30,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-17 05:07:30,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2021-11-17 05:07:30,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:30,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:07:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2021-11-17 05:07:30,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2021-11-17 05:07:30,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2021-11-17 05:07:30,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:30,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2021-11-17 05:07:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2021-11-17 05:07:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2021-11-17 05:07:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 461 [2021-11-17 05:07:30,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:07:30,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2021-11-17 05:07:30,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:07:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2021-11-17 05:07:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:07:30,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:30,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1270 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2021-11-17 05:07:30,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:07:30,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776379351] [2021-11-17 05:07:30,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776379351] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 05:07:30,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190219135] [2021-11-17 05:07:30,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:07:30,281 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 05:07:30,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 05:07:30,284 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) [2021-11-17 05:07:30,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-17 05:07:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:07:31,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 3748 conjuncts, 109 conjunts are in the unsatisfiable core [2021-11-17 05:07:31,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 05:07:31,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-17 05:07:31,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-17 05:07:32,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-17 05:07:32,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-17 05:07:32,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-17 05:07:32,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2021-11-17 05:07:32,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2021-11-17 05:07:33,124 INFO L354 Elim1Store]: treesize reduction 16, result has 23.8 percent of original size [2021-11-17 05:07:33,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-17 05:07:33,135 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-17 05:07:33,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 33 [2021-11-17 05:07:33,205 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-17 05:07:33,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 23 [2021-11-17 05:07:33,209 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-17 05:07:33,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 13 [2021-11-17 05:07:33,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-17 05:07:33,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2021-11-17 05:07:33,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2021-11-17 05:07:33,424 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-17 05:07:33,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 45 treesize of output 56 [2021-11-17 05:07:33,441 INFO L354 Elim1Store]: treesize reduction 38, result has 22.4 percent of original size [2021-11-17 05:07:33,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 52 [2021-11-17 05:07:33,584 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-17 05:07:33,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 40 [2021-11-17 05:07:33,590 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-17 05:07:33,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 22 [2021-11-17 05:07:34,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2021-11-17 05:07:34,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2021-11-17 05:07:48,942 INFO L354 Elim1Store]: treesize reduction 69, result has 18.8 percent of original size [2021-11-17 05:07:48,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 66 [2021-11-17 05:07:48,960 INFO L354 Elim1Store]: treesize reduction 36, result has 26.5 percent of original size [2021-11-17 05:07:48,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 57 treesize of output 61 [2021-11-17 05:08:00,990 INFO L134 CoverageAnalysis]: Checked inductivity of 1270 backedges. 661 proven. 52 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2021-11-17 05:08:00,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 05:08:07,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190219135] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 05:08:08,000 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-17 05:08:08,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 28] total 39 [2021-11-17 05:08:08,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703522872] [2021-11-17 05:08:08,000 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-17 05:08:08,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-11-17 05:08:08,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:08:08,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-11-17 05:08:08,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1643, Unknown=11, NotChecked=0, Total=1806 [2021-11-17 05:08:08,002 INFO L87 Difference]: Start difference. First operand 17328 states and 24261 transitions. Second operand has 39 states, 36 states have (on average 9.944444444444445) internal successors, (358), 26 states have internal predecessors, (358), 11 states have call successors, (96), 14 states have call predecessors, (96), 13 states have return successors, (79), 12 states have call predecessors, (79), 11 states have call successors, (79) [2021-11-17 05:08:33,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:08:33,637 INFO L93 Difference]: Finished difference Result 43515 states and 62939 transitions. [2021-11-17 05:08:33,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-17 05:08:33,638 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 36 states have (on average 9.944444444444445) internal successors, (358), 26 states have internal predecessors, (358), 11 states have call successors, (96), 14 states have call predecessors, (96), 13 states have return successors, (79), 12 states have call predecessors, (79), 11 states have call successors, (79) Word has length 511 [2021-11-17 05:08:33,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:08:33,764 INFO L225 Difference]: With dead ends: 43515 [2021-11-17 05:08:33,765 INFO L226 Difference]: Without dead ends: 26738 [2021-11-17 05:08:33,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 994 GetRequests, 919 SyntacticMatches, 6 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1297 ImplicationChecksByTransitivity, 48.4s TimeCoverageRelationStatistics Valid=446, Invalid=4508, Unknown=16, NotChecked=0, Total=4970 [2021-11-17 05:08:33,825 INFO L933 BasicCegarLoop]: 2992 mSDtfsCounter, 3307 mSDsluCounter, 38594 mSDsCounter, 0 mSdLazyCounter, 12711 mSolverCounterSat, 3223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3613 SdHoareTripleChecker+Valid, 41586 SdHoareTripleChecker+Invalid, 27882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3223 IncrementalHoareTripleChecker+Valid, 12711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11948 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-11-17 05:08:33,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3613 Valid, 41586 Invalid, 27882 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3223 Valid, 12711 Invalid, 0 Unknown, 11948 Unchecked, 8.9s Time] [2021-11-17 05:08:33,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26738 states. [2021-11-17 05:08:34,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26738 to 18270. [2021-11-17 05:08:34,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18270 states, 12998 states have (on average 1.3097399599938453) internal successors, (17024), 13252 states have internal predecessors, (17024), 4298 states have call successors, (4298), 941 states have call predecessors, (4298), 973 states have return successors, (4393), 4221 states have call predecessors, (4393), 4297 states have call successors, (4393) [2021-11-17 05:08:34,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18270 states to 18270 states and 25715 transitions. [2021-11-17 05:08:34,880 INFO L78 Accepts]: Start accepts. Automaton has 18270 states and 25715 transitions. Word has length 511 [2021-11-17 05:08:34,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:08:34,880 INFO L470 AbstractCegarLoop]: Abstraction has 18270 states and 25715 transitions. [2021-11-17 05:08:34,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 36 states have (on average 9.944444444444445) internal successors, (358), 26 states have internal predecessors, (358), 11 states have call successors, (96), 14 states have call predecessors, (96), 13 states have return successors, (79), 12 states have call predecessors, (79), 11 states have call successors, (79) [2021-11-17 05:08:34,880 INFO L276 IsEmpty]: Start isEmpty. Operand 18270 states and 25715 transitions. [2021-11-17 05:08:34,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2021-11-17 05:08:34,902 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:08:34,903 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 7, 7, 6, 6, 6, 5, 5, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:08:34,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-17 05:08:35,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-17 05:08:35,104 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:08:35,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:08:35,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1040959974, now seen corresponding path program 1 times [2021-11-17 05:08:35,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:08:35,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688758914] [2021-11-17 05:08:35,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:08:35,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:08:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:08:35,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:35,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:08:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:08:35,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:08:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:08:35,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:08:35,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:08:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:35,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:08:35,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:08:35,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:35,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:08:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:08:35,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:08:35,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:08:35,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:35,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:08:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:08:35,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 05:08:35,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:08:35,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 05:08:35,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:35,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:08:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 05:08:35,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:08:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 05:08:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:35,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:08:35,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 05:08:35,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:08:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 05:08:35,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:08:35,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-11-17 05:08:35,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-11-17 05:08:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:08:35,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 05:08:35,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-11-17 05:08:35,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 05:08:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 05:08:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 05:08:35,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-11-17 05:08:35,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 05:08:35,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 05:08:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 05:08:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2021-11-17 05:08:35,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2021-11-17 05:08:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:35,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:08:35,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-11-17 05:08:35,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2021-11-17 05:08:35,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 05:08:35,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2021-11-17 05:08:35,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2021-11-17 05:08:35,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2021-11-17 05:08:35,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2021-11-17 05:08:35,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:08:35,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:08:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2021-11-17 05:08:35,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:08:35,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 501 [2021-11-17 05:08:35,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:35,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:35,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1334 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1326 trivial. 0 not checked. [2021-11-17 05:08:35,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:08:35,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688758914] [2021-11-17 05:08:35,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688758914] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:08:35,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:08:35,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 05:08:35,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028746863] [2021-11-17 05:08:35,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:08:35,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 05:08:35,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:08:35,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 05:08:35,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-17 05:08:35,646 INFO L87 Difference]: Start difference. First operand 18270 states and 25715 transitions. Second operand has 9 states, 9 states have (on average 19.666666666666668) internal successors, (177), 4 states have internal predecessors, (177), 2 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-17 05:08:43,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:08:43,727 INFO L93 Difference]: Finished difference Result 42530 states and 60215 transitions. [2021-11-17 05:08:43,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-17 05:08:43,728 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.666666666666668) internal successors, (177), 4 states have internal predecessors, (177), 2 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 521 [2021-11-17 05:08:43,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:08:43,808 INFO L225 Difference]: With dead ends: 42530 [2021-11-17 05:08:43,808 INFO L226 Difference]: Without dead ends: 24964 [2021-11-17 05:08:43,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=315, Unknown=0, NotChecked=0, Total=420 [2021-11-17 05:08:43,852 INFO L933 BasicCegarLoop]: 2159 mSDtfsCounter, 4896 mSDsluCounter, 6296 mSDsCounter, 0 mSdLazyCounter, 5770 mSolverCounterSat, 4453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5104 SdHoareTripleChecker+Valid, 8455 SdHoareTripleChecker+Invalid, 10223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4453 IncrementalHoareTripleChecker+Valid, 5770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-17 05:08:43,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5104 Valid, 8455 Invalid, 10223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4453 Valid, 5770 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2021-11-17 05:08:43,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24964 states. [2021-11-17 05:08:44,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24964 to 17197. [2021-11-17 05:08:44,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17197 states, 12235 states have (on average 1.3123825091949326) internal successors, (16057), 12477 states have internal predecessors, (16057), 4042 states have call successors, (4042), 890 states have call predecessors, (4042), 919 states have return successors, (4125), 3965 states have call predecessors, (4125), 4041 states have call successors, (4125) [2021-11-17 05:08:44,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17197 states to 17197 states and 24224 transitions. [2021-11-17 05:08:44,860 INFO L78 Accepts]: Start accepts. Automaton has 17197 states and 24224 transitions. Word has length 521 [2021-11-17 05:08:44,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:08:44,861 INFO L470 AbstractCegarLoop]: Abstraction has 17197 states and 24224 transitions. [2021-11-17 05:08:44,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.666666666666668) internal successors, (177), 4 states have internal predecessors, (177), 2 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-17 05:08:44,861 INFO L276 IsEmpty]: Start isEmpty. Operand 17197 states and 24224 transitions. [2021-11-17 05:08:44,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2021-11-17 05:08:44,881 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:08:44,881 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 7, 7, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:08:44,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-17 05:08:44,882 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:08:44,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:08:44,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1290555767, now seen corresponding path program 1 times [2021-11-17 05:08:44,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:08:44,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650858446] [2021-11-17 05:08:44,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:08:44,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:08:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:08:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:46,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:08:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:08:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:08:46,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:08:46,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:46,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:08:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:08:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:08:46,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:08:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:46,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:08:46,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:08:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:08:46,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:08:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:08:46,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:08:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 05:08:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:08:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 05:08:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:08:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 05:08:46,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:08:46,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 05:08:46,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:46,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:08:46,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 05:08:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:46,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:08:46,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 05:08:46,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:08:46,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-11-17 05:08:46,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-11-17 05:08:46,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:08:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 05:08:46,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-11-17 05:08:46,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 05:08:46,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 05:08:46,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 05:08:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-11-17 05:08:46,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:46,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 05:08:46,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 05:08:46,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 05:08:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2021-11-17 05:08:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2021-11-17 05:08:46,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:46,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:08:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-11-17 05:08:46,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:46,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2021-11-17 05:08:46,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:47,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 05:08:47,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:47,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:47,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2021-11-17 05:08:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:47,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2021-11-17 05:08:47,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:47,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2021-11-17 05:08:47,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:47,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2021-11-17 05:08:47,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:47,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:08:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:47,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:08:47,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:47,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2021-11-17 05:08:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:47,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 05:08:47,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:47,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:08:47,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:47,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 507 [2021-11-17 05:08:47,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:55,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:08:55,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:55,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1400 backedges. 154 proven. 28 refuted. 0 times theorem prover too weak. 1218 trivial. 0 not checked. [2021-11-17 05:08:55,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:08:55,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650858446] [2021-11-17 05:08:55,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650858446] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 05:08:55,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119958057] [2021-11-17 05:08:55,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:08:55,130 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 05:08:55,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 05:08:55,131 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) [2021-11-17 05:08:55,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-17 05:08:56,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:08:56,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 3840 conjuncts, 56 conjunts are in the unsatisfiable core [2021-11-17 05:08:56,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 05:08:56,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-17 05:08:56,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-17 05:08:57,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-17 05:08:57,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-17 05:08:57,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-17 05:08:58,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-17 05:08:58,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 15 [2021-11-17 05:08:58,925 INFO L354 Elim1Store]: treesize reduction 16, result has 23.8 percent of original size [2021-11-17 05:08:58,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-17 05:08:58,939 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-17 05:08:58,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 33 [2021-11-17 05:08:59,113 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-17 05:08:59,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 23 [2021-11-17 05:08:59,118 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-17 05:08:59,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 11 [2021-11-17 05:09:00,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2021-11-17 05:09:00,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2021-11-17 05:09:43,156 INFO L354 Elim1Store]: treesize reduction 38, result has 22.4 percent of original size [2021-11-17 05:09:43,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2021-11-17 05:09:43,169 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-11-17 05:09:43,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 40 [2021-11-17 05:09:49,472 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-17 05:09:49,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 25 [2021-11-17 05:09:50,269 WARN L860 $PredicateComparison]: unable to prove that (exists ((|#Ultimate.meminit_#ptr.base| Int)) (= |c_#memory_int| (store |c_old(#memory_int)| |#Ultimate.meminit_#ptr.base| ((as const (Array Int Int)) 0)))) is different from true [2021-11-17 05:09:50,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-17 05:11:22,528 INFO L354 Elim1Store]: treesize reduction 69, result has 18.8 percent of original size [2021-11-17 05:11:22,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 46 [2021-11-17 05:11:30,705 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-17 05:11:30,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-17 05:11:31,240 INFO L134 CoverageAnalysis]: Checked inductivity of 1400 backedges. 738 proven. 57 refuted. 0 times theorem prover too weak. 593 trivial. 12 not checked. [2021-11-17 05:11:31,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 05:12:49,515 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_#Ultimate.meminit_#ptr.base_163| Int) (|ULTIMATE.start_amd8111e_probe_one_~pdev#1.offset| Int)) (= (mod (select (select (store |c_#memory_int| |v_#Ultimate.meminit_#ptr.base_163| ((as const (Array Int Int)) 0)) c_~amd8111e_driver_group1~0.base) (+ 1493 |ULTIMATE.start_amd8111e_probe_one_~pdev#1.offset|)) 18446744073709551616) 0)) is different from false [2021-11-17 05:12:49,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119958057] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 05:12:49,516 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-17 05:12:49,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 27] total 57 [2021-11-17 05:12:49,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637240544] [2021-11-17 05:12:49,517 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-17 05:12:49,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2021-11-17 05:12:49,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:12:49,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-11-17 05:12:49,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=3018, Unknown=100, NotChecked=226, Total=3540 [2021-11-17 05:12:49,519 INFO L87 Difference]: Start difference. First operand 17197 states and 24224 transitions. Second operand has 57 states, 53 states have (on average 7.113207547169812) internal successors, (377), 42 states have internal predecessors, (377), 26 states have call successors, (102), 14 states have call predecessors, (102), 17 states have return successors, (85), 26 states have call predecessors, (85), 26 states have call successors, (85) [2021-11-17 05:15:09,929 WARN L227 SmtUtils]: Spent 6.20s on a formula simplification. DAG size of input: 79 DAG size of output: 78 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-17 05:17:57,913 WARN L227 SmtUtils]: Spent 8.05s on a formula simplification. DAG size of input: 78 DAG size of output: 72 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Killed by 15