./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--hp--hp100.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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--hp--hp100.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 71a394c873c772dcf5e6708cb37d9b35e24256f5a212c542b9c08f202c87eae6 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 01:29:57,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 01:29:57,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 01:29:57,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 01:29:57,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 01:29:57,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 01:29:57,740 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 01:29:57,742 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 01:29:57,744 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 01:29:57,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 01:29:57,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 01:29:57,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 01:29:57,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 01:29:57,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 01:29:57,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 01:29:57,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 01:29:57,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 01:29:57,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 01:29:57,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 01:29:57,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 01:29:57,770 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 01:29:57,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 01:29:57,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 01:29:57,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 01:29:57,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 01:29:57,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 01:29:57,782 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 01:29:57,782 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 01:29:57,783 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 01:29:57,784 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 01:29:57,785 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 01:29:57,785 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 01:29:57,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 01:29:57,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 01:29:57,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 01:29:57,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 01:29:57,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 01:29:57,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 01:29:57,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 01:29:57,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 01:29:57,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 01:29:57,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 01:29:57,794 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 01:29:57,824 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 01:29:57,824 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 01:29:57,825 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 01:29:57,825 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 01:29:57,826 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 01:29:57,826 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 01:29:57,827 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 01:29:57,827 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 01:29:57,827 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 01:29:57,828 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 01:29:57,828 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 01:29:57,829 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 01:29:57,829 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 01:29:57,829 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 01:29:57,829 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 01:29:57,829 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 01:29:57,829 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 01:29:57,830 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 01:29:57,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 01:29:57,830 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 01:29:57,830 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 01:29:57,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 01:29:57,831 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 01:29:57,831 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 01:29:57,831 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 01:29:57,831 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 01:29:57,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 01:29:57,832 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 01:29:57,832 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 01:29:57,832 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 01:29:57,832 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71a394c873c772dcf5e6708cb37d9b35e24256f5a212c542b9c08f202c87eae6 [2022-07-23 01:29:58,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 01:29:58,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 01:29:58,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 01:29:58,114 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 01:29:58,115 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 01:29:58,116 INFO L432 ainManager$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--hp--hp100.ko-entry_point.cil.out.i [2022-07-23 01:29:58,189 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/804fa4efa/62d5a4e6ab7e443699e5e71451630f17/FLAGe4ba3d646 [2022-07-23 01:29:58,963 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 01:29:58,964 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--hp--hp100.ko-entry_point.cil.out.i [2022-07-23 01:29:59,017 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/804fa4efa/62d5a4e6ab7e443699e5e71451630f17/FLAGe4ba3d646 [2022-07-23 01:29:59,509 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/804fa4efa/62d5a4e6ab7e443699e5e71451630f17 [2022-07-23 01:29:59,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 01:29:59,512 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 01:29:59,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 01:29:59,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 01:29:59,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 01:29:59,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:29:59" (1/1) ... [2022-07-23 01:29:59,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a095e44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:29:59, skipping insertion in model container [2022-07-23 01:29:59,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:29:59" (1/1) ... [2022-07-23 01:29:59,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 01:29:59,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 01:30:01,046 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--hp--hp100.ko-entry_point.cil.out.i[263471,263484] [2022-07-23 01:30:01,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:30:01,107 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 01:30:01,421 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--hp--hp100.ko-entry_point.cil.out.i[263471,263484] [2022-07-23 01:30:01,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:30:01,563 INFO L208 MainTranslator]: Completed translation [2022-07-23 01:30:01,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:30:01 WrapperNode [2022-07-23 01:30:01,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 01:30:01,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 01:30:01,566 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 01:30:01,566 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 01:30:01,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:30:01" (1/1) ... [2022-07-23 01:30:01,657 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:30:01" (1/1) ... [2022-07-23 01:30:01,795 INFO L137 Inliner]: procedures = 225, calls = 1448, calls flagged for inlining = 103, calls inlined = 100, statements flattened = 3781 [2022-07-23 01:30:01,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 01:30:01,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 01:30:01,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 01:30:01,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 01:30:01,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:30:01" (1/1) ... [2022-07-23 01:30:01,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:30:01" (1/1) ... [2022-07-23 01:30:01,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:30:01" (1/1) ... [2022-07-23 01:30:01,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:30:01" (1/1) ... [2022-07-23 01:30:01,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:30:01" (1/1) ... [2022-07-23 01:30:01,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:30:01" (1/1) ... [2022-07-23 01:30:02,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:30:01" (1/1) ... [2022-07-23 01:30:02,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 01:30:02,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 01:30:02,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 01:30:02,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 01:30:02,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:30:01" (1/1) ... [2022-07-23 01:30:02,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 01:30:02,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 01:30:02,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-23 01:30:02,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-23 01:30:02,103 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_update_stats [2022-07-23 01:30:02,103 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_update_stats [2022-07-23 01:30:02,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 01:30:02,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 01:30:02,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 01:30:02,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 01:30:02,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-23 01:30:02,104 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-23 01:30:02,104 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-23 01:30:02,105 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-23 01:30:02,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-23 01:30:02,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-23 01:30:02,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 01:30:02,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 01:30:02,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-23 01:30:02,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-23 01:30:02,106 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-23 01:30:02,106 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-23 01:30:02,106 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-23 01:30:02,106 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-23 01:30:02,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-23 01:30:02,106 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-23 01:30:02,106 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-23 01:30:02,107 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-23 01:30:02,107 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2022-07-23 01:30:02,107 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2022-07-23 01:30:02,107 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_open [2022-07-23 01:30:02,107 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_open [2022-07-23 01:30:02,107 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_load_eeprom [2022-07-23 01:30:02,107 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_load_eeprom [2022-07-23 01:30:02,108 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-23 01:30:02,108 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-23 01:30:02,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 01:30:02,108 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-23 01:30:02,108 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_sense_lan [2022-07-23 01:30:02,108 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_sense_lan [2022-07-23 01:30:02,108 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-07-23 01:30:02,109 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-07-23 01:30:02,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 01:30:02,109 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_get_stats [2022-07-23 01:30:02,109 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_get_stats [2022-07-23 01:30:02,109 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-23 01:30:02,109 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-23 01:30:02,109 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-07-23 01:30:02,110 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-07-23 01:30:02,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-23 01:30:02,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-23 01:30:02,110 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-23 01:30:02,110 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-23 01:30:02,111 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-23 01:30:02,111 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-23 01:30:02,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 01:30:02,111 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-23 01:30:02,111 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-23 01:30:02,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 01:30:02,112 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-07-23 01:30:02,112 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-07-23 01:30:02,113 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-07-23 01:30:02,113 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-07-23 01:30:02,114 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-23 01:30:02,114 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-23 01:30:02,114 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-23 01:30:02,114 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-23 01:30:02,114 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-23 01:30:02,114 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-23 01:30:02,115 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-23 01:30:02,115 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-23 01:30:02,115 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-23 01:30:02,115 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-23 01:30:02,115 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-07-23 01:30:02,115 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-07-23 01:30:02,115 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_cascade_reset [2022-07-23 01:30:02,116 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_cascade_reset [2022-07-23 01:30:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2022-07-23 01:30:02,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2022-07-23 01:30:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-23 01:30:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-23 01:30:02,117 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-23 01:30:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-23 01:30:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_build_rx_pdl [2022-07-23 01:30:02,117 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_build_rx_pdl [2022-07-23 01:30:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-23 01:30:02,118 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-23 01:30:02,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 01:30:02,119 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-23 01:30:02,119 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-23 01:30:02,119 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-23 01:30:02,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-23 01:30:02,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-23 01:30:02,120 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-23 01:30:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rx_bm [2022-07-23 01:30:02,120 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rx_bm [2022-07-23 01:30:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_BM_shutdown [2022-07-23 01:30:02,120 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_BM_shutdown [2022-07-23 01:30:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-23 01:30:02,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-23 01:30:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure wait [2022-07-23 01:30:02,121 INFO L138 BoogieDeclarations]: Found implementation of procedure wait [2022-07-23 01:30:02,122 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-07-23 01:30:02,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-07-23 01:30:02,123 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-23 01:30:02,123 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-23 01:30:02,123 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_hwinit [2022-07-23 01:30:02,123 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_hwinit [2022-07-23 01:30:02,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 01:30:02,123 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-23 01:30:02,123 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-23 01:30:02,123 INFO L130 BoogieDeclarations]: Found specification of procedure dev_consume_skb_any [2022-07-23 01:30:02,124 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_consume_skb_any [2022-07-23 01:30:02,124 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-07-23 01:30:02,124 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-07-23 01:30:02,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 01:30:02,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 01:30:02,125 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_whatever [2022-07-23 01:30:02,125 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_whatever [2022-07-23 01:30:02,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-23 01:30:02,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-23 01:30:02,126 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_close [2022-07-23 01:30:02,126 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_close [2022-07-23 01:30:02,128 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-07-23 01:30:02,128 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-07-23 01:30:02,128 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_stop_interface [2022-07-23 01:30:02,128 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_stop_interface [2022-07-23 01:30:02,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 01:30:02,130 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_check_lan [2022-07-23 01:30:02,130 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_check_lan [2022-07-23 01:30:02,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-23 01:30:02,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-23 01:30:02,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 01:30:02,136 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-23 01:30:02,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-23 01:30:02,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 01:30:02,137 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-23 01:30:02,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-23 01:30:02,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-23 01:30:02,137 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_set_multicast_list [2022-07-23 01:30:02,137 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_set_multicast_list [2022-07-23 01:30:02,137 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rxfill [2022-07-23 01:30:02,137 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rxfill [2022-07-23 01:30:02,137 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_start_interface [2022-07-23 01:30:02,138 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_start_interface [2022-07-23 01:30:02,138 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-23 01:30:02,138 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-23 01:30:02,138 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-23 01:30:02,138 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-23 01:30:02,138 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_clean_txring [2022-07-23 01:30:02,138 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_clean_txring [2022-07-23 01:30:02,138 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-07-23 01:30:02,139 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-07-23 01:30:02,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 01:30:02,139 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-07-23 01:30:02,139 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-07-23 01:30:02,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 01:30:02,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 01:30:02,139 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_login_to_vg_hub [2022-07-23 01:30:02,139 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_login_to_vg_hub [2022-07-23 01:30:02,139 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-07-23 01:30:02,140 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-07-23 01:30:02,761 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 01:30:02,763 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 01:30:03,188 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 01:30:05,276 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 01:30:05,432 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume 0 == (if 0 == ~tmp___4~7#1 then 0 else (if 1 == ~tmp___4~7#1 then 0 else ~bitwiseAnd(~tmp___4~7#1, 2096896))) % 18446744073709551616; [2022-07-23 01:30:05,432 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !(0 == (if 0 == ~tmp___4~7#1 then 0 else (if 1 == ~tmp___4~7#1 then 0 else ~bitwiseAnd(~tmp___4~7#1, 2096896))) % 18446744073709551616); [2022-07-23 01:30:05,432 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L8189-1: assume -9223372036854775808 <= #t~ret673#1 && #t~ret673#1 <= 9223372036854775807;havoc #t~ret673#1; [2022-07-23 01:30:05,433 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L8189: SUMMARY for call #t~ret673#1 := schedule_timeout_interruptible(1); srcloc: null [2022-07-23 01:30:05,433 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L8192: assume (if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0; [2022-07-23 01:30:05,433 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L8192: assume !((if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0); [2022-07-23 01:30:05,508 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 01:30:05,524 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 01:30:05,525 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-23 01:30:05,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:30:05 BoogieIcfgContainer [2022-07-23 01:30:05,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 01:30:05,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 01:30:05,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 01:30:05,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 01:30:05,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 01:29:59" (1/3) ... [2022-07-23 01:30:05,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@593de29f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:30:05, skipping insertion in model container [2022-07-23 01:30:05,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:30:01" (2/3) ... [2022-07-23 01:30:05,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@593de29f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:30:05, skipping insertion in model container [2022-07-23 01:30:05,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:30:05" (3/3) ... [2022-07-23 01:30:05,537 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2022-07-23 01:30:05,551 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 01:30:05,551 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-23 01:30:05,627 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 01:30:05,634 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@62d583b9, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2b36b9a2 [2022-07-23 01:30:05,635 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-23 01:30:05,644 INFO L276 IsEmpty]: Start isEmpty. Operand has 1687 states, 1083 states have (on average 1.3776546629732225) internal successors, (1492), 1137 states have internal predecessors, (1492), 535 states have call successors, (535), 70 states have call predecessors, (535), 69 states have return successors, (528), 512 states have call predecessors, (528), 528 states have call successors, (528) [2022-07-23 01:30:05,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-23 01:30:05,673 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:30:05,674 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-07-23 01:30:05,675 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:30:05,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:30:05,680 INFO L85 PathProgramCache]: Analyzing trace with hash -493404073, now seen corresponding path program 1 times [2022-07-23 01:30:05,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:30:05,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839385276] [2022-07-23 01:30:05,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:30:05,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:30:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:06,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:30:06,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:06,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:06,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:06,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:06,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:06,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:30:06,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:06,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:06,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:06,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:06,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:30:06,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:06,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:06,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:06,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:06,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:06,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 01:30:06,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:06,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:06,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:06,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:06,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 01:30:06,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:06,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:06,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:06,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:06,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-23 01:30:06,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:06,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:06,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:06,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-23 01:30:06,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:06,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:06,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-23 01:30:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:06,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-23 01:30:06,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:06,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 01:30:06,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:06,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-23 01:30:06,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:06,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-23 01:30:06,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:06,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-23 01:30:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:06,569 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-07-23 01:30:06,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:30:06,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839385276] [2022-07-23 01:30:06,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839385276] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:30:06,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:30:06,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 01:30:06,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60962936] [2022-07-23 01:30:06,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:30:06,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 01:30:06,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:30:06,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 01:30:06,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 01:30:06,608 INFO L87 Difference]: Start difference. First operand has 1687 states, 1083 states have (on average 1.3776546629732225) internal successors, (1492), 1137 states have internal predecessors, (1492), 535 states have call successors, (535), 70 states have call predecessors, (535), 69 states have return successors, (528), 512 states have call predecessors, (528), 528 states have call successors, (528) Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-23 01:30:11,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:30:11,464 INFO L93 Difference]: Finished difference Result 3516 states and 5444 transitions. [2022-07-23 01:30:11,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 01:30:11,468 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 169 [2022-07-23 01:30:11,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:30:11,503 INFO L225 Difference]: With dead ends: 3516 [2022-07-23 01:30:11,503 INFO L226 Difference]: Without dead ends: 1814 [2022-07-23 01:30:11,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-23 01:30:11,528 INFO L413 NwaCegarLoop]: 2089 mSDtfsCounter, 2137 mSDsluCounter, 2039 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 2576 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2178 SdHoareTripleChecker+Valid, 4128 SdHoareTripleChecker+Invalid, 4336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2576 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-07-23 01:30:11,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2178 Valid, 4128 Invalid, 4336 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2576 Valid, 1760 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-07-23 01:30:11,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2022-07-23 01:30:11,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1661. [2022-07-23 01:30:11,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1661 states, 1066 states have (on average 1.3377110694183865) internal successors, (1426), 1110 states have internal predecessors, (1426), 526 states have call successors, (526), 69 states have call predecessors, (526), 68 states have return successors, (525), 509 states have call predecessors, (525), 525 states have call successors, (525) [2022-07-23 01:30:11,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1661 states to 1661 states and 2477 transitions. [2022-07-23 01:30:11,721 INFO L78 Accepts]: Start accepts. Automaton has 1661 states and 2477 transitions. Word has length 169 [2022-07-23 01:30:11,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:30:11,722 INFO L495 AbstractCegarLoop]: Abstraction has 1661 states and 2477 transitions. [2022-07-23 01:30:11,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-23 01:30:11,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1661 states and 2477 transitions. [2022-07-23 01:30:11,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-07-23 01:30:11,730 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:30:11,730 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-07-23 01:30:11,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 01:30:11,731 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:30:11,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:30:11,731 INFO L85 PathProgramCache]: Analyzing trace with hash -202498239, now seen corresponding path program 1 times [2022-07-23 01:30:11,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:30:11,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10779812] [2022-07-23 01:30:11,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:30:11,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:30:11,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:12,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:30:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:12,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:12,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:12,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:30:12,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:12,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:12,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:12,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:30:12,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:12,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:12,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:12,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:12,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:12,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 01:30:12,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:12,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:12,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:12,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:12,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 01:30:12,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:12,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:12,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:12,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:12,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-23 01:30:12,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:12,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:12,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:12,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-23 01:30:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:12,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:12,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:12,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-23 01:30:12,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:12,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-23 01:30:12,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:12,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-23 01:30:12,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:12,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-23 01:30:12,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:12,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-23 01:30:12,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:12,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-23 01:30:12,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:12,278 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-07-23 01:30:12,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:30:12,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10779812] [2022-07-23 01:30:12,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10779812] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:30:12,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:30:12,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 01:30:12,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636247004] [2022-07-23 01:30:12,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:30:12,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 01:30:12,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:30:12,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 01:30:12,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-23 01:30:12,282 INFO L87 Difference]: Start difference. First operand 1661 states and 2477 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-23 01:30:23,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-23 01:30:25,752 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-23 01:30:28,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-23 01:30:30,261 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-23 01:30:31,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:30:31,473 INFO L93 Difference]: Finished difference Result 5251 states and 7909 transitions. [2022-07-23 01:30:31,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-23 01:30:31,473 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 168 [2022-07-23 01:30:31,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:30:31,503 INFO L225 Difference]: With dead ends: 5251 [2022-07-23 01:30:31,504 INFO L226 Difference]: Without dead ends: 3612 [2022-07-23 01:30:31,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-07-23 01:30:31,517 INFO L413 NwaCegarLoop]: 2515 mSDtfsCounter, 6894 mSDsluCounter, 4797 mSDsCounter, 0 mSdLazyCounter, 8063 mSolverCounterSat, 7185 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7148 SdHoareTripleChecker+Valid, 7312 SdHoareTripleChecker+Invalid, 15252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7185 IncrementalHoareTripleChecker+Valid, 8063 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2022-07-23 01:30:31,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7148 Valid, 7312 Invalid, 15252 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7185 Valid, 8063 Invalid, 4 Unknown, 0 Unchecked, 18.4s Time] [2022-07-23 01:30:31,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3612 states. [2022-07-23 01:30:31,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3612 to 3300. [2022-07-23 01:30:31,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 2120 states have (on average 1.3377358490566038) internal successors, (2836), 2208 states have internal predecessors, (2836), 1043 states have call successors, (1043), 137 states have call predecessors, (1043), 136 states have return successors, (1046), 1010 states have call predecessors, (1046), 1042 states have call successors, (1046) [2022-07-23 01:30:31,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 4925 transitions. [2022-07-23 01:30:31,804 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 4925 transitions. Word has length 168 [2022-07-23 01:30:31,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:30:31,806 INFO L495 AbstractCegarLoop]: Abstraction has 3300 states and 4925 transitions. [2022-07-23 01:30:31,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-23 01:30:31,806 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 4925 transitions. [2022-07-23 01:30:31,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-23 01:30:31,817 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:30:31,817 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-07-23 01:30:31,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 01:30:31,819 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:30:31,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:30:31,821 INFO L85 PathProgramCache]: Analyzing trace with hash -102197040, now seen corresponding path program 1 times [2022-07-23 01:30:31,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:30:31,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763292539] [2022-07-23 01:30:31,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:30:31,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:30:31,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:32,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:30:32,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:32,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:32,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:32,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:30:32,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:32,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:32,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:32,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:30:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:32,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:32,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:32,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 01:30:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:32,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:32,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:32,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:32,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 01:30:32,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:32,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:32,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:32,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:32,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-23 01:30:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:32,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:32,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-23 01:30:32,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:32,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:32,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-23 01:30:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:32,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-23 01:30:32,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:32,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-23 01:30:32,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:32,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-23 01:30:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:32,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-23 01:30:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:32,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-23 01:30:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:32,333 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-07-23 01:30:32,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:30:32,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763292539] [2022-07-23 01:30:32,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763292539] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:30:32,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:30:32,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 01:30:32,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518486557] [2022-07-23 01:30:32,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:30:32,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 01:30:32,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:30:32,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 01:30:32,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-23 01:30:32,339 INFO L87 Difference]: Start difference. First operand 3300 states and 4925 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-23 01:30:45,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-23 01:30:47,370 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-23 01:30:49,660 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-23 01:30:51,750 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-23 01:30:52,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:30:52,894 INFO L93 Difference]: Finished difference Result 10475 states and 15779 transitions. [2022-07-23 01:30:52,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-23 01:30:52,895 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 167 [2022-07-23 01:30:52,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:30:52,947 INFO L225 Difference]: With dead ends: 10475 [2022-07-23 01:30:52,947 INFO L226 Difference]: Without dead ends: 7197 [2022-07-23 01:30:52,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-07-23 01:30:52,966 INFO L413 NwaCegarLoop]: 2833 mSDtfsCounter, 5116 mSDsluCounter, 5791 mSDsCounter, 0 mSdLazyCounter, 9415 mSolverCounterSat, 5228 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5370 SdHoareTripleChecker+Valid, 8624 SdHoareTripleChecker+Invalid, 14647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5228 IncrementalHoareTripleChecker+Valid, 9415 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2022-07-23 01:30:52,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5370 Valid, 8624 Invalid, 14647 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5228 Valid, 9415 Invalid, 4 Unknown, 0 Unchecked, 19.8s Time] [2022-07-23 01:30:52,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7197 states. [2022-07-23 01:30:53,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7197 to 6565. [2022-07-23 01:30:53,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6565 states, 4216 states have (on average 1.337998102466793) internal successors, (5641), 4399 states have internal predecessors, (5641), 2076 states have call successors, (2076), 273 states have call predecessors, (2076), 272 states have return successors, (2089), 2004 states have call predecessors, (2089), 2075 states have call successors, (2089) [2022-07-23 01:30:53,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6565 states to 6565 states and 9806 transitions. [2022-07-23 01:30:53,393 INFO L78 Accepts]: Start accepts. Automaton has 6565 states and 9806 transitions. Word has length 167 [2022-07-23 01:30:53,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:30:53,394 INFO L495 AbstractCegarLoop]: Abstraction has 6565 states and 9806 transitions. [2022-07-23 01:30:53,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-23 01:30:53,394 INFO L276 IsEmpty]: Start isEmpty. Operand 6565 states and 9806 transitions. [2022-07-23 01:30:53,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-07-23 01:30:53,403 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:30:53,403 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-07-23 01:30:53,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-23 01:30:53,404 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:30:53,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:30:53,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1313951326, now seen corresponding path program 1 times [2022-07-23 01:30:53,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:30:53,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025286097] [2022-07-23 01:30:53,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:30:53,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:30:53,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:53,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:30:53,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:53,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:53,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:53,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:53,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:30:53,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:53,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:53,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:53,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:53,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:53,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:30:53,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:53,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:53,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:53,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:53,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:53,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 01:30:53,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:53,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:53,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:53,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:53,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 01:30:53,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:53,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:53,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:53,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-23 01:30:53,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:53,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:53,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:53,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-23 01:30:53,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:53,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:53,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:53,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-23 01:30:53,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:53,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-23 01:30:53,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:53,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-23 01:30:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:53,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-23 01:30:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:53,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-23 01:30:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:53,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-23 01:30:53,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:53,812 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-07-23 01:30:53,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:30:53,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025286097] [2022-07-23 01:30:53,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025286097] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:30:53,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:30:53,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 01:30:53,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363557686] [2022-07-23 01:30:53,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:30:53,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 01:30:53,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:30:53,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 01:30:53,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-23 01:30:53,816 INFO L87 Difference]: Start difference. First operand 6565 states and 9806 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-23 01:31:06,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-23 01:31:08,790 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-23 01:31:10,945 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-23 01:31:13,030 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-23 01:31:14,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:31:14,262 INFO L93 Difference]: Finished difference Result 20898 states and 31483 transitions. [2022-07-23 01:31:14,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-23 01:31:14,263 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 170 [2022-07-23 01:31:14,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:31:14,368 INFO L225 Difference]: With dead ends: 20898 [2022-07-23 01:31:14,369 INFO L226 Difference]: Without dead ends: 14355 [2022-07-23 01:31:14,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-07-23 01:31:14,400 INFO L413 NwaCegarLoop]: 2270 mSDtfsCounter, 5999 mSDsluCounter, 5873 mSDsCounter, 0 mSdLazyCounter, 9063 mSolverCounterSat, 5866 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6253 SdHoareTripleChecker+Valid, 8143 SdHoareTripleChecker+Invalid, 14933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5866 IncrementalHoareTripleChecker+Valid, 9063 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2022-07-23 01:31:14,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6253 Valid, 8143 Invalid, 14933 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5866 Valid, 9063 Invalid, 4 Unknown, 0 Unchecked, 19.6s Time] [2022-07-23 01:31:14,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14355 states. [2022-07-23 01:31:15,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14355 to 13113. [2022-07-23 01:31:15,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13113 states, 8426 states have (on average 1.3376453833372894) internal successors, (11271), 8790 states have internal predecessors, (11271), 4141 states have call successors, (4141), 546 states have call predecessors, (4141), 545 states have return successors, (4178), 4000 states have call predecessors, (4178), 4140 states have call successors, (4178) [2022-07-23 01:31:15,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13113 states to 13113 states and 19590 transitions. [2022-07-23 01:31:15,395 INFO L78 Accepts]: Start accepts. Automaton has 13113 states and 19590 transitions. Word has length 170 [2022-07-23 01:31:15,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:31:15,396 INFO L495 AbstractCegarLoop]: Abstraction has 13113 states and 19590 transitions. [2022-07-23 01:31:15,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-23 01:31:15,397 INFO L276 IsEmpty]: Start isEmpty. Operand 13113 states and 19590 transitions. [2022-07-23 01:31:15,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-23 01:31:15,406 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:31:15,407 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-07-23 01:31:15,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-23 01:31:15,407 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:31:15,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:31:15,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1180888205, now seen corresponding path program 1 times [2022-07-23 01:31:15,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:31:15,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806311951] [2022-07-23 01:31:15,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:31:15,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:31:15,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:15,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:31:15,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:15,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:15,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:15,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:15,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:31:15,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:15,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:15,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:15,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:15,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:31:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:15,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:15,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:15,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 01:31:15,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:15,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:15,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:15,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 01:31:15,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:15,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:15,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:15,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:15,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-23 01:31:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:15,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:15,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:15,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-23 01:31:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:15,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:15,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-23 01:31:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:15,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-23 01:31:15,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:15,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 01:31:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:15,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-23 01:31:15,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:15,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-23 01:31:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:15,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-23 01:31:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:15,762 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-07-23 01:31:15,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:31:15,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806311951] [2022-07-23 01:31:15,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806311951] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:31:15,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:31:15,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 01:31:15,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45929505] [2022-07-23 01:31:15,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:31:15,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 01:31:15,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:31:15,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 01:31:15,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-23 01:31:15,767 INFO L87 Difference]: Start difference. First operand 13113 states and 19590 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-23 01:31:28,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-23 01:31:30,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-23 01:31:31,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:31:31,496 INFO L93 Difference]: Finished difference Result 41517 states and 62537 transitions. [2022-07-23 01:31:31,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-23 01:31:31,497 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 169 [2022-07-23 01:31:31,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:31:31,683 INFO L225 Difference]: With dead ends: 41517 [2022-07-23 01:31:31,683 INFO L226 Difference]: Without dead ends: 28426 [2022-07-23 01:31:31,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-07-23 01:31:31,831 INFO L413 NwaCegarLoop]: 2272 mSDtfsCounter, 7373 mSDsluCounter, 4595 mSDsCounter, 0 mSdLazyCounter, 7568 mSolverCounterSat, 7581 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7627 SdHoareTripleChecker+Valid, 6867 SdHoareTripleChecker+Invalid, 15151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7581 IncrementalHoareTripleChecker+Valid, 7568 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2022-07-23 01:31:31,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7627 Valid, 6867 Invalid, 15151 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7581 Valid, 7568 Invalid, 2 Unknown, 0 Unchecked, 14.4s Time] [2022-07-23 01:31:31,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28426 states. [2022-07-23 01:31:33,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28426 to 26037. [2022-07-23 01:31:33,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26037 states, 16726 states have (on average 1.3373191438479015) internal successors, (22368), 17444 states have internal predecessors, (22368), 8224 states have call successors, (8224), 1087 states have call predecessors, (8224), 1086 states have return successors, (8317), 7947 states have call predecessors, (8317), 8223 states have call successors, (8317) [2022-07-23 01:31:33,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26037 states to 26037 states and 38909 transitions. [2022-07-23 01:31:33,680 INFO L78 Accepts]: Start accepts. Automaton has 26037 states and 38909 transitions. Word has length 169 [2022-07-23 01:31:33,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:31:33,682 INFO L495 AbstractCegarLoop]: Abstraction has 26037 states and 38909 transitions. [2022-07-23 01:31:33,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-23 01:31:33,683 INFO L276 IsEmpty]: Start isEmpty. Operand 26037 states and 38909 transitions. [2022-07-23 01:31:33,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-07-23 01:31:33,692 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:31:33,692 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-07-23 01:31:33,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-23 01:31:33,693 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:31:33,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:31:33,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1303944672, now seen corresponding path program 1 times [2022-07-23 01:31:33,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:31:33,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974193984] [2022-07-23 01:31:33,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:31:33,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:31:33,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:33,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:31:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:33,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:33,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:33,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:33,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:31:33,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:33,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:33,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:33,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:33,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:33,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:31:33,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:33,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:33,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:33,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:33,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:33,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 01:31:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:33,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:33,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:33,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:33,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 01:31:33,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:33,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:33,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:33,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-23 01:31:33,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:33,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:34,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-23 01:31:34,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:34,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:34,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:34,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-23 01:31:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:34,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-23 01:31:34,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:34,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-23 01:31:34,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:34,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-23 01:31:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:34,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-23 01:31:34,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:34,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-23 01:31:34,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:34,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-23 01:31:34,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:34,116 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-07-23 01:31:34,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:31:34,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974193984] [2022-07-23 01:31:34,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974193984] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 01:31:34,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701571142] [2022-07-23 01:31:34,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:31:34,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 01:31:34,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 01:31:34,123 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 01:31:34,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-23 01:31:34,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:34,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 2223 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:31:34,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:31:34,901 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2022-07-23 01:31:34,901 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:31:34,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701571142] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:31:34,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 01:31:34,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2022-07-23 01:31:34,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297296041] [2022-07-23 01:31:34,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:31:34,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:31:34,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:31:34,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:31:34,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-07-23 01:31:34,904 INFO L87 Difference]: Start difference. First operand 26037 states and 38909 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-23 01:31:35,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:31:35,930 INFO L93 Difference]: Finished difference Result 53012 states and 79308 transitions. [2022-07-23 01:31:35,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:31:35,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 180 [2022-07-23 01:31:35,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:31:36,114 INFO L225 Difference]: With dead ends: 53012 [2022-07-23 01:31:36,115 INFO L226 Difference]: Without dead ends: 26997 [2022-07-23 01:31:36,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-07-23 01:31:36,235 INFO L413 NwaCegarLoop]: 2544 mSDtfsCounter, 54 mSDsluCounter, 2481 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 5025 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 01:31:36,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 5025 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 01:31:36,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26997 states. [2022-07-23 01:31:37,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26997 to 26052. [2022-07-23 01:31:37,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26052 states, 16741 states have (on average 1.3370169046054596) internal successors, (22383), 17459 states have internal predecessors, (22383), 8224 states have call successors, (8224), 1087 states have call predecessors, (8224), 1086 states have return successors, (8317), 7947 states have call predecessors, (8317), 8223 states have call successors, (8317) [2022-07-23 01:31:37,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26052 states to 26052 states and 38924 transitions. [2022-07-23 01:31:37,895 INFO L78 Accepts]: Start accepts. Automaton has 26052 states and 38924 transitions. Word has length 180 [2022-07-23 01:31:37,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:31:37,896 INFO L495 AbstractCegarLoop]: Abstraction has 26052 states and 38924 transitions. [2022-07-23 01:31:37,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-23 01:31:37,896 INFO L276 IsEmpty]: Start isEmpty. Operand 26052 states and 38924 transitions. [2022-07-23 01:31:37,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-23 01:31:37,906 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:31:37,906 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2022-07-23 01:31:37,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-23 01:31:38,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-23 01:31:38,120 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:31:38,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:31:38,120 INFO L85 PathProgramCache]: Analyzing trace with hash -337206999, now seen corresponding path program 1 times [2022-07-23 01:31:38,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:31:38,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932111344] [2022-07-23 01:31:38,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:31:38,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:31:38,361 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 01:31:38,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1065268167] [2022-07-23 01:31:38,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:31:38,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 01:31:38,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 01:31:38,363 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 01:31:38,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-23 01:31:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:39,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 2250 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 01:31:39,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:31:39,164 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-07-23 01:31:39,165 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:31:39,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:31:39,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932111344] [2022-07-23 01:31:39,165 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-23 01:31:39,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065268167] [2022-07-23 01:31:39,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065268167] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:31:39,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:31:39,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 01:31:39,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832144591] [2022-07-23 01:31:39,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:31:39,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 01:31:39,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:31:39,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 01:31:39,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-23 01:31:39,168 INFO L87 Difference]: Start difference. First operand 26052 states and 38924 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 01:31:41,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:31:41,290 INFO L93 Difference]: Finished difference Result 65194 states and 97410 transitions. [2022-07-23 01:31:41,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 01:31:41,291 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 184 [2022-07-23 01:31:41,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:31:41,531 INFO L225 Difference]: With dead ends: 65194 [2022-07-23 01:31:41,531 INFO L226 Difference]: Without dead ends: 39164 [2022-07-23 01:31:41,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-07-23 01:31:41,657 INFO L413 NwaCegarLoop]: 3561 mSDtfsCounter, 2497 mSDsluCounter, 16682 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2501 SdHoareTripleChecker+Valid, 20243 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 01:31:41,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2501 Valid, 20243 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 01:31:41,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39164 states. [2022-07-23 01:31:43,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39164 to 39015. [2022-07-23 01:31:43,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39015 states, 25080 states have (on average 1.3377990430622009) internal successors, (33552), 26164 states have internal predecessors, (33552), 12303 states have call successors, (12303), 1624 states have call predecessors, (12303), 1631 states have return successors, (12486), 11886 states have call predecessors, (12486), 12302 states have call successors, (12486) [2022-07-23 01:31:43,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39015 states to 39015 states and 58341 transitions. [2022-07-23 01:31:43,762 INFO L78 Accepts]: Start accepts. Automaton has 39015 states and 58341 transitions. Word has length 184 [2022-07-23 01:31:43,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:31:43,763 INFO L495 AbstractCegarLoop]: Abstraction has 39015 states and 58341 transitions. [2022-07-23 01:31:43,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 01:31:43,764 INFO L276 IsEmpty]: Start isEmpty. Operand 39015 states and 58341 transitions. [2022-07-23 01:31:43,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-07-23 01:31:43,778 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:31:43,778 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:31:43,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-23 01:31:44,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-07-23 01:31:44,003 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:31:44,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:31:44,004 INFO L85 PathProgramCache]: Analyzing trace with hash -421023629, now seen corresponding path program 1 times [2022-07-23 01:31:44,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:31:44,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959093496] [2022-07-23 01:31:44,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:31:44,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:31:44,072 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 01:31:44,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1407615622] [2022-07-23 01:31:44,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:31:44,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 01:31:44,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 01:31:44,075 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 01:31:44,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-23 01:31:44,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:44,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 2252 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 01:31:44,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:31:44,842 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-07-23 01:31:44,842 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:31:44,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:31:44,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959093496] [2022-07-23 01:31:44,842 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-23 01:31:44,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407615622] [2022-07-23 01:31:44,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407615622] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:31:44,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:31:44,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 01:31:44,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588405556] [2022-07-23 01:31:44,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:31:44,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 01:31:44,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:31:44,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 01:31:44,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-23 01:31:44,845 INFO L87 Difference]: Start difference. First operand 39015 states and 58341 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 01:31:47,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:31:47,081 INFO L93 Difference]: Finished difference Result 91173 states and 136290 transitions. [2022-07-23 01:31:47,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 01:31:47,082 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 185 [2022-07-23 01:31:47,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:31:47,489 INFO L225 Difference]: With dead ends: 91173 [2022-07-23 01:31:47,490 INFO L226 Difference]: Without dead ends: 52180 [2022-07-23 01:31:47,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-07-23 01:31:47,624 INFO L413 NwaCegarLoop]: 3859 mSDtfsCounter, 2497 mSDsluCounter, 17862 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2501 SdHoareTripleChecker+Valid, 21721 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 01:31:47,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2501 Valid, 21721 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 01:31:47,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52180 states. [2022-07-23 01:31:50,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52180 to 52010. [2022-07-23 01:31:50,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52010 states, 33439 states have (on average 1.3379885762134036) internal successors, (44741), 34905 states have internal predecessors, (44741), 16382 states have call successors, (16382), 2161 states have call predecessors, (16382), 2188 states have return successors, (16667), 15821 states have call predecessors, (16667), 16381 states have call successors, (16667) [2022-07-23 01:31:50,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52010 states to 52010 states and 77790 transitions. [2022-07-23 01:31:50,569 INFO L78 Accepts]: Start accepts. Automaton has 52010 states and 77790 transitions. Word has length 185 [2022-07-23 01:31:50,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:31:50,572 INFO L495 AbstractCegarLoop]: Abstraction has 52010 states and 77790 transitions. [2022-07-23 01:31:50,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 01:31:50,572 INFO L276 IsEmpty]: Start isEmpty. Operand 52010 states and 77790 transitions. [2022-07-23 01:31:50,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-07-23 01:31:50,592 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:31:50,592 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:31:50,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-23 01:31:50,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 01:31:50,804 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:31:50,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:31:50,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1577407934, now seen corresponding path program 1 times [2022-07-23 01:31:50,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:31:50,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966849628] [2022-07-23 01:31:50,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:31:50,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:31:51,123 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 01:31:51,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2043818051] [2022-07-23 01:31:51,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:31:51,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 01:31:51,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 01:31:51,125 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 01:31:51,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-23 01:31:51,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:51,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 2254 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 01:31:51,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:31:51,906 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-07-23 01:31:51,907 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:31:51,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:31:51,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966849628] [2022-07-23 01:31:51,907 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-23 01:31:51,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043818051] [2022-07-23 01:31:51,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043818051] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:31:51,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:31:51,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 01:31:51,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548121684] [2022-07-23 01:31:51,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:31:51,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 01:31:51,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:31:51,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 01:31:51,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-23 01:31:51,910 INFO L87 Difference]: Start difference. First operand 52010 states and 77790 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 01:31:54,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:31:54,393 INFO L93 Difference]: Finished difference Result 117152 states and 175170 transitions. [2022-07-23 01:31:54,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 01:31:54,394 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 186 [2022-07-23 01:31:54,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:31:54,741 INFO L225 Difference]: With dead ends: 117152 [2022-07-23 01:31:54,741 INFO L226 Difference]: Without dead ends: 65164 [2022-07-23 01:31:54,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-07-23 01:31:54,945 INFO L413 NwaCegarLoop]: 3862 mSDtfsCounter, 2497 mSDsluCounter, 17874 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2501 SdHoareTripleChecker+Valid, 21736 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 01:31:54,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2501 Valid, 21736 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 01:31:55,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65164 states. [2022-07-23 01:31:57,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65164 to 52032. [2022-07-23 01:31:57,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52032 states, 33455 states have (on average 1.3378269316992977) internal successors, (44757), 34923 states have internal predecessors, (44757), 16382 states have call successors, (16382), 2161 states have call predecessors, (16382), 2194 states have return successors, (16676), 15825 states have call predecessors, (16676), 16381 states have call successors, (16676) [2022-07-23 01:31:58,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52032 states to 52032 states and 77815 transitions. [2022-07-23 01:31:58,043 INFO L78 Accepts]: Start accepts. Automaton has 52032 states and 77815 transitions. Word has length 186 [2022-07-23 01:31:58,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:31:58,043 INFO L495 AbstractCegarLoop]: Abstraction has 52032 states and 77815 transitions. [2022-07-23 01:31:58,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 01:31:58,043 INFO L276 IsEmpty]: Start isEmpty. Operand 52032 states and 77815 transitions. [2022-07-23 01:31:58,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-23 01:31:58,064 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:31:58,064 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:31:58,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-23 01:31:58,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 01:31:58,279 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:31:58,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:31:58,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1623651796, now seen corresponding path program 1 times [2022-07-23 01:31:58,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:31:58,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119647344] [2022-07-23 01:31:58,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:31:58,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:31:58,373 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 01:31:58,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1057409002] [2022-07-23 01:31:58,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:31:58,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 01:31:58,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 01:31:58,376 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 01:31:58,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-23 01:31:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:59,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 2256 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 01:31:59,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:31:59,314 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-07-23 01:31:59,315 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:31:59,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:31:59,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119647344] [2022-07-23 01:31:59,315 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-23 01:31:59,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057409002] [2022-07-23 01:31:59,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057409002] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:31:59,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:31:59,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 01:31:59,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987830446] [2022-07-23 01:31:59,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:31:59,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 01:31:59,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:31:59,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 01:31:59,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-23 01:31:59,318 INFO L87 Difference]: Start difference. First operand 52032 states and 77815 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 01:32:01,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:32:01,732 INFO L93 Difference]: Finished difference Result 117182 states and 175203 transitions. [2022-07-23 01:32:01,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 01:32:01,735 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 187 [2022-07-23 01:32:01,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:32:02,093 INFO L225 Difference]: With dead ends: 117182 [2022-07-23 01:32:02,094 INFO L226 Difference]: Without dead ends: 65172 [2022-07-23 01:32:02,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-07-23 01:32:02,508 INFO L413 NwaCegarLoop]: 3862 mSDtfsCounter, 2497 mSDsluCounter, 17874 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2501 SdHoareTripleChecker+Valid, 21736 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 01:32:02,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2501 Valid, 21736 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 01:32:02,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65172 states. [2022-07-23 01:32:04,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65172 to 52045. [2022-07-23 01:32:04,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52045 states, 33465 states have (on average 1.33772598236964) internal successors, (44767), 34932 states have internal predecessors, (44767), 16382 states have call successors, (16382), 2161 states have call predecessors, (16382), 2197 states have return successors, (16679), 15829 states have call predecessors, (16679), 16381 states have call successors, (16679) [2022-07-23 01:32:05,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52045 states to 52045 states and 77828 transitions. [2022-07-23 01:32:05,254 INFO L78 Accepts]: Start accepts. Automaton has 52045 states and 77828 transitions. Word has length 187 [2022-07-23 01:32:05,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:32:05,255 INFO L495 AbstractCegarLoop]: Abstraction has 52045 states and 77828 transitions. [2022-07-23 01:32:05,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 01:32:05,256 INFO L276 IsEmpty]: Start isEmpty. Operand 52045 states and 77828 transitions. [2022-07-23 01:32:05,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-07-23 01:32:05,279 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:32:05,279 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-23 01:32:05,311 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-07-23 01:32:05,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-23 01:32:05,496 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:32:05,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:32:05,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1775948927, now seen corresponding path program 1 times [2022-07-23 01:32:05,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:32:05,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913714700] [2022-07-23 01:32:05,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:32:05,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:32:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:05,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:32:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:05,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:32:05,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:05,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:32:05,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:05,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:32:05,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:05,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:32:05,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:05,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:32:05,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:05,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:32:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:05,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:32:05,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:05,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:32:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:05,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 01:32:05,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:05,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:32:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:05,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:32:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:05,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 01:32:05,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:05,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:32:05,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:05,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:32:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:05,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-23 01:32:05,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:05,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:32:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:05,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-23 01:32:05,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:05,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:32:05,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:05,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-23 01:32:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:06,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-23 01:32:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:06,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-23 01:32:06,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:06,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-23 01:32:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:06,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-23 01:32:06,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:06,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-23 01:32:06,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:06,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-23 01:32:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:06,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-23 01:32:06,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:06,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-23 01:32:06,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:06,229 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2022-07-23 01:32:06,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:32:06,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913714700] [2022-07-23 01:32:06,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913714700] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 01:32:06,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020480799] [2022-07-23 01:32:06,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:32:06,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 01:32:06,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 01:32:06,232 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 01:32:06,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-23 01:32:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:32:06,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 2335 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-23 01:32:06,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:32:07,151 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-07-23 01:32:07,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 01:32:07,465 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-07-23 01:32:07,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020480799] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 01:32:07,465 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 01:32:07,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 24 [2022-07-23 01:32:07,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053774042] [2022-07-23 01:32:07,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 01:32:07,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-23 01:32:07,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:32:07,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-23 01:32:07,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2022-07-23 01:32:07,468 INFO L87 Difference]: Start difference. First operand 52045 states and 77828 transitions. Second operand has 24 states, 24 states have (on average 6.125) internal successors, (147), 15 states have internal predecessors, (147), 5 states have call successors, (46), 9 states have call predecessors, (46), 7 states have return successors, (36), 6 states have call predecessors, (36), 5 states have call successors, (36) [2022-07-23 01:33:13,920 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-23 01:33:16,016 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-23 01:33:18,828 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-23 01:33:21,322 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-23 01:33:23,594 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-23 01:33:25,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-23 01:33:27,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-23 01:33:29,942 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-23 01:33:35,384 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-23 01:33:37,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-23 01:33:41,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:33:41,742 INFO L93 Difference]: Finished difference Result 151836 states and 228508 transitions. [2022-07-23 01:33:41,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2022-07-23 01:33:41,743 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.125) internal successors, (147), 15 states have internal predecessors, (147), 5 states have call successors, (46), 9 states have call predecessors, (46), 7 states have return successors, (36), 6 states have call predecessors, (36), 5 states have call successors, (36) Word has length 200 [2022-07-23 01:33:41,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:33:42,376 INFO L225 Difference]: With dead ends: 151836 [2022-07-23 01:33:42,376 INFO L226 Difference]: Without dead ends: 99617 [2022-07-23 01:33:42,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 617 GetRequests, 462 SyntacticMatches, 1 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9457 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=3771, Invalid=20409, Unknown=0, NotChecked=0, Total=24180 [2022-07-23 01:33:42,616 INFO L413 NwaCegarLoop]: 4290 mSDtfsCounter, 15646 mSDsluCounter, 23366 mSDsCounter, 0 mSdLazyCounter, 70793 mSolverCounterSat, 15193 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16501 SdHoareTripleChecker+Valid, 27656 SdHoareTripleChecker+Invalid, 85996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 15193 IncrementalHoareTripleChecker+Valid, 70793 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 83.6s IncrementalHoareTripleChecker+Time [2022-07-23 01:33:42,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16501 Valid, 27656 Invalid, 85996 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [15193 Valid, 70793 Invalid, 10 Unknown, 0 Unchecked, 83.6s Time] [2022-07-23 01:33:42,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99617 states.