./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-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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-08_1a-drivers--vfio--vfio.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 c63ca5a13217ab3c82769d6ebc8e69dd180f3b7d25df235b9ae7098d5fa1543b --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 13:30:02,754 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 13:30:02,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 13:30:02,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 13:30:02,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 13:30:02,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 13:30:02,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 13:30:02,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 13:30:02,793 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 13:30:02,797 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 13:30:02,798 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 13:30:02,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 13:30:02,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 13:30:02,809 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 13:30:02,810 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 13:30:02,811 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 13:30:02,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 13:30:02,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 13:30:02,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 13:30:02,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 13:30:02,822 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 13:30:02,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 13:30:02,836 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 13:30:02,837 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 13:30:02,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 13:30:02,839 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 13:30:02,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 13:30:02,839 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 13:30:02,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 13:30:02,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 13:30:02,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 13:30:02,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 13:30:02,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 13:30:02,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 13:30:02,841 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 13:30:02,842 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 13:30:02,842 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 13:30:02,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 13:30:02,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 13:30:02,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 13:30:02,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 13:30:02,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 13:30:02,844 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 13:30:02,865 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 13:30:02,866 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 13:30:02,866 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 13:30:02,866 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 13:30:02,867 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 13:30:02,867 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 13:30:02,867 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 13:30:02,867 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 13:30:02,867 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 13:30:02,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 13:30:02,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 13:30:02,868 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 13:30:02,868 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 13:30:02,868 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 13:30:02,868 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 13:30:02,869 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 13:30:02,869 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 13:30:02,869 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 13:30:02,870 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 13:30:02,870 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 13:30:02,870 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 13:30:02,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:30:02,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 13:30:02,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 13:30:02,870 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 13:30:02,870 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 13:30:02,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 13:30:02,871 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 13:30:02,871 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 13:30:02,871 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 13:30:02,871 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c63ca5a13217ab3c82769d6ebc8e69dd180f3b7d25df235b9ae7098d5fa1543b [2022-07-12 13:30:03,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 13:30:03,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 13:30:03,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 13:30:03,073 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 13:30:03,074 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 13:30:03,075 INFO L432 ainManager$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-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i [2022-07-12 13:30:03,117 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdd2a9ad0/3f24d4461bd240dc803d2a36cc66197e/FLAG041e8f076 [2022-07-12 13:30:03,726 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 13:30:03,726 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i [2022-07-12 13:30:03,757 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdd2a9ad0/3f24d4461bd240dc803d2a36cc66197e/FLAG041e8f076 [2022-07-12 13:30:04,095 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdd2a9ad0/3f24d4461bd240dc803d2a36cc66197e [2022-07-12 13:30:04,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 13:30:04,098 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 13:30:04,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 13:30:04,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 13:30:04,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 13:30:04,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:30:04" (1/1) ... [2022-07-12 13:30:04,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2280e52b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:30:04, skipping insertion in model container [2022-07-12 13:30:04,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:30:04" (1/1) ... [2022-07-12 13:30:04,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 13:30:04,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 13:30:05,234 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-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i[198983,198996] [2022-07-12 13:30:05,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:30:05,310 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 13:30:05,502 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-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i[198983,198996] [2022-07-12 13:30:05,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:30:05,564 INFO L208 MainTranslator]: Completed translation [2022-07-12 13:30:05,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:30:05 WrapperNode [2022-07-12 13:30:05,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 13:30:05,567 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 13:30:05,567 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 13:30:05,567 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 13:30:05,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:30:05" (1/1) ... [2022-07-12 13:30:05,627 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:30:05" (1/1) ... [2022-07-12 13:30:05,730 INFO L137 Inliner]: procedures = 244, calls = 1516, calls flagged for inlining = 92, calls inlined = 80, statements flattened = 2942 [2022-07-12 13:30:05,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 13:30:05,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 13:30:05,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 13:30:05,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 13:30:05,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:30:05" (1/1) ... [2022-07-12 13:30:05,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:30:05" (1/1) ... [2022-07-12 13:30:05,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:30:05" (1/1) ... [2022-07-12 13:30:05,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:30:05" (1/1) ... [2022-07-12 13:30:05,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:30:05" (1/1) ... [2022-07-12 13:30:05,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:30:05" (1/1) ... [2022-07-12 13:30:05,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:30:05" (1/1) ... [2022-07-12 13:30:05,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 13:30:05,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 13:30:05,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 13:30:05,882 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 13:30:05,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:30:05" (1/1) ... [2022-07-12 13:30:05,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:30:05,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:30:05,909 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) [2022-07-12 13:30:05,910 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 [2022-07-12 13:30:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-12 13:30:05,941 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-12 13:30:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2022-07-12 13:30:05,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2022-07-12 13:30:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2022-07-12 13:30:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-07-12 13:30:05,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-07-12 13:30:05,942 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-07-12 13:30:05,942 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-07-12 13:30:05,942 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_compat_ioctl [2022-07-12 13:30:05,942 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_compat_ioctl [2022-07-12 13:30:05,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 13:30:05,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 13:30:05,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 13:30:05,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 13:30:05,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 13:30:05,942 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 13:30:05,943 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_read [2022-07-12 13:30:05,943 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_read [2022-07-12 13:30:05,943 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_fops_compat_ioctl [2022-07-12 13:30:05,943 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_fops_compat_ioctl [2022-07-12 13:30:05,943 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-12 13:30:05,943 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-12 13:30:05,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 13:30:05,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 13:30:05,943 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_fops_release [2022-07-12 13:30:05,944 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_fops_release [2022-07-12 13:30:05,944 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_fops_open [2022-07-12 13:30:05,944 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_fops_open [2022-07-12 13:30:05,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-07-12 13:30:05,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-07-12 13:30:05,944 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_get [2022-07-12 13:30:05,944 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_get [2022-07-12 13:30:05,944 INFO L130 BoogieDeclarations]: Found specification of procedure __vfio_group_unset_container [2022-07-12 13:30:05,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __vfio_group_unset_container [2022-07-12 13:30:05,944 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_fops_unl_ioctl [2022-07-12 13:30:05,944 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_fops_unl_ioctl [2022-07-12 13:30:05,944 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 13:30:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 13:30:05,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 13:30:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 13:30:05,945 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_compat_ioctl [2022-07-12 13:30:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_compat_ioctl [2022-07-12 13:30:05,945 INFO L130 BoogieDeclarations]: Found specification of procedure fdput [2022-07-12 13:30:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure fdput [2022-07-12 13:30:05,945 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_dev_viable [2022-07-12 13:30:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_dev_viable [2022-07-12 13:30:05,945 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-12 13:30:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-12 13:30:05,945 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_mmap [2022-07-12 13:30:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_mmap [2022-07-12 13:30:05,945 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 13:30:05,946 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 13:30:05,946 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_put [2022-07-12 13:30:05,946 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_put [2022-07-12 13:30:05,946 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_try_dissolve_container [2022-07-12 13:30:05,947 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_try_dissolve_container [2022-07-12 13:30:05,947 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_unlock_and_free [2022-07-12 13:30:05,947 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_unlock_and_free [2022-07-12 13:30:05,947 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_release [2022-07-12 13:30:05,948 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_release [2022-07-12 13:30:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 13:30:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-12 13:30:05,948 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-12 13:30:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_write [2022-07-12 13:30:05,948 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_write [2022-07-12 13:30:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2022-07-12 13:30:05,948 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2022-07-12 13:30:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 13:30:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_unl_ioctl [2022-07-12 13:30:05,948 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_unl_ioctl [2022-07-12 13:30:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-07-12 13:30:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 13:30:05,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 13:30:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-07-12 13:30:05,948 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-07-12 13:30:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-07-12 13:30:05,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-07-12 13:30:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-07-12 13:30:05,949 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-07-12 13:30:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 13:30:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 13:30:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure iommu_group_id [2022-07-12 13:30:05,949 INFO L138 BoogieDeclarations]: Found implementation of procedure iommu_group_id [2022-07-12 13:30:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_1 [2022-07-12 13:30:05,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_1 [2022-07-12 13:30:05,950 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-07-12 13:30:05,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-07-12 13:30:05,950 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-12 13:30:05,950 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-12 13:30:05,950 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2022-07-12 13:30:05,950 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2022-07-12 13:30:05,950 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-12 13:30:05,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-12 13:30:05,950 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-12 13:30:05,951 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-12 13:30:05,951 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-12 13:30:05,951 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-12 13:30:05,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-12 13:30:05,951 INFO L130 BoogieDeclarations]: Found specification of procedure iommu_group_put [2022-07-12 13:30:05,952 INFO L138 BoogieDeclarations]: Found implementation of procedure iommu_group_put [2022-07-12 13:30:05,952 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2022-07-12 13:30:05,952 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2022-07-12 13:30:05,952 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-12 13:30:05,952 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-12 13:30:05,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-12 13:30:05,952 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_put [2022-07-12 13:30:05,952 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_put [2022-07-12 13:30:05,952 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-07-12 13:30:05,952 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-07-12 13:30:05,952 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put_mutex [2022-07-12 13:30:05,952 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put_mutex [2022-07-12 13:30:05,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 13:30:05,953 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_put_external_user [2022-07-12 13:30:05,953 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_put_external_user [2022-07-12 13:30:05,953 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_cmpxchg [2022-07-12 13:30:05,953 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_cmpxchg [2022-07-12 13:30:05,953 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 13:30:05,954 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 13:30:05,956 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_read [2022-07-12 13:30:05,956 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_read [2022-07-12 13:30:05,956 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_get [2022-07-12 13:30:05,956 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_get [2022-07-12 13:30:05,957 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2022-07-12 13:30:05,957 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2022-07-12 13:30:05,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 13:30:05,957 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_unl_ioctl [2022-07-12 13:30:05,957 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_unl_ioctl [2022-07-12 13:30:05,962 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-07-12 13:30:05,962 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-07-12 13:30:05,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 13:30:05,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 13:30:05,963 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2022-07-12 13:30:05,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2022-07-12 13:30:05,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-12 13:30:05,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-12 13:30:05,963 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2022-07-12 13:30:05,963 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2022-07-12 13:30:05,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 13:30:05,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-12 13:30:05,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-12 13:30:05,963 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_mmap [2022-07-12 13:30:05,963 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_mmap [2022-07-12 13:30:05,963 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2022-07-12 13:30:05,963 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2022-07-12 13:30:05,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 13:30:05,963 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-12 13:30:05,963 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-12 13:30:05,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 13:30:05,963 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 13:30:05,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 13:30:05,963 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_unless [2022-07-12 13:30:05,963 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_unless [2022-07-12 13:30:05,963 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2022-07-12 13:30:05,964 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2022-07-12 13:30:05,964 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_write [2022-07-12 13:30:05,964 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_write [2022-07-12 13:30:05,964 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_ioctl_check_extension [2022-07-12 13:30:05,964 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_ioctl_check_extension [2022-07-12 13:30:05,964 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_free_group_minor [2022-07-12 13:30:05,964 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_free_group_minor [2022-07-12 13:30:05,964 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-07-12 13:30:05,964 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-07-12 13:30:05,964 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-12 13:30:05,964 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-12 13:30:05,964 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-07-12 13:30:05,964 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-07-12 13:30:05,964 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_get_device [2022-07-12 13:30:05,964 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_get_device [2022-07-12 13:30:05,964 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 13:30:05,964 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 13:30:05,964 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-07-12 13:30:05,965 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-07-12 13:30:05,965 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_container_put [2022-07-12 13:30:05,965 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_container_put [2022-07-12 13:30:05,965 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-12 13:30:05,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-12 13:30:05,965 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-12 13:30:05,965 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-12 13:30:05,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 13:30:05,965 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-07-12 13:30:05,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-07-12 13:30:05,965 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_viable [2022-07-12 13:30:05,965 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_viable [2022-07-12 13:30:05,965 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_ioctl_set_iommu [2022-07-12 13:30:05,965 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_ioctl_set_iommu [2022-07-12 13:30:05,965 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_open [2022-07-12 13:30:05,965 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_open [2022-07-12 13:30:05,965 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_release [2022-07-12 13:30:05,965 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_release [2022-07-12 13:30:05,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 13:30:05,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 13:30:05,966 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-12 13:30:05,966 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-12 13:30:06,463 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 13:30:06,467 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 13:30:06,673 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 13:30:07,932 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 13:30:07,948 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 13:30:07,949 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 13:30:07,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 01:30:07 BoogieIcfgContainer [2022-07-12 13:30:07,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 13:30:07,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 13:30:07,954 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 13:30:07,956 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 13:30:07,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 01:30:04" (1/3) ... [2022-07-12 13:30:07,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d081d4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 01:30:07, skipping insertion in model container [2022-07-12 13:30:07,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:30:05" (2/3) ... [2022-07-12 13:30:07,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d081d4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 01:30:07, skipping insertion in model container [2022-07-12 13:30:07,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 01:30:07" (3/3) ... [2022-07-12 13:30:07,959 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i [2022-07-12 13:30:07,969 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 13:30:07,969 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 13:30:08,039 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 13:30:08,044 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@512f5651, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@51651bda [2022-07-12 13:30:08,044 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 13:30:08,051 INFO L276 IsEmpty]: Start isEmpty. Operand has 1149 states, 760 states have (on average 1.2881578947368422) internal successors, (979), 783 states have internal predecessors, (979), 300 states have call successors, (300), 88 states have call predecessors, (300), 87 states have return successors, (295), 293 states have call predecessors, (295), 295 states have call successors, (295) [2022-07-12 13:30:08,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2022-07-12 13:30:08,085 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:30:08,085 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:30:08,086 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:30:08,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:30:08,091 INFO L85 PathProgramCache]: Analyzing trace with hash -897254435, now seen corresponding path program 1 times [2022-07-12 13:30:08,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:30:08,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292597360] [2022-07-12 13:30:08,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:30:08,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:30:08,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:08,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:30:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:08,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:08,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:08,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:08,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:30:08,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:08,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:08,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:08,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:08,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:30:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:08,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:08,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:08,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:08,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:30:08,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:08,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:08,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:08,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:08,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:30:08,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:08,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:08,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:08,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:08,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:08,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:30:08,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:08,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:08,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:08,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:08,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:30:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:08,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:08,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:08,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:30:08,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:08,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:08,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:08,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-12 13:30:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:08,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:08,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:08,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:08,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-12 13:30:09,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:09,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:09,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:09,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:09,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-12 13:30:09,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:09,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-12 13:30:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:09,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-12 13:30:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:09,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 13:30:09,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:09,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-12 13:30:09,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:09,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 13:30:09,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:09,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-12 13:30:09,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:09,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-12 13:30:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:09,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:30:09,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:09,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-12 13:30:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:09,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-12 13:30:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:09,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-12 13:30:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:09,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-12 13:30:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:09,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-12 13:30:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:09,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-12 13:30:09,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:09,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-12 13:30:09,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:09,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2022-07-12 13:30:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:09,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-12 13:30:09,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:09,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-12 13:30:09,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:09,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-07-12 13:30:09,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:09,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-07-12 13:30:09,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:09,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-07-12 13:30:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:09,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1233 trivial. 0 not checked. [2022-07-12 13:30:09,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:30:09,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292597360] [2022-07-12 13:30:09,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292597360] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:30:09,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:30:09,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:30:09,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287779696] [2022-07-12 13:30:09,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:30:09,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:30:09,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:30:09,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:30:09,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:30:09,216 INFO L87 Difference]: Start difference. First operand has 1149 states, 760 states have (on average 1.2881578947368422) internal successors, (979), 783 states have internal predecessors, (979), 300 states have call successors, (300), 88 states have call predecessors, (300), 87 states have return successors, (295), 293 states have call predecessors, (295), 295 states have call successors, (295) Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (35), 5 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-12 13:30:13,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:30:13,471 INFO L93 Difference]: Finished difference Result 4045 states and 5977 transitions. [2022-07-12 13:30:13,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:30:13,481 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (35), 5 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 321 [2022-07-12 13:30:13,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:30:13,529 INFO L225 Difference]: With dead ends: 4045 [2022-07-12 13:30:13,529 INFO L226 Difference]: Without dead ends: 2883 [2022-07-12 13:30:13,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:30:13,549 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 3734 mSDsluCounter, 1925 mSDsCounter, 0 mSdLazyCounter, 2648 mSolverCounterSat, 2463 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3896 SdHoareTripleChecker+Valid, 3452 SdHoareTripleChecker+Invalid, 5111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2463 IncrementalHoareTripleChecker+Valid, 2648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-07-12 13:30:13,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3896 Valid, 3452 Invalid, 5111 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2463 Valid, 2648 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-07-12 13:30:13,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states. [2022-07-12 13:30:13,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 2140. [2022-07-12 13:30:13,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 1429 states have (on average 1.2883135059482156) internal successors, (1841), 1459 states have internal predecessors, (1841), 541 states have call successors, (541), 170 states have call predecessors, (541), 169 states have return successors, (539), 535 states have call predecessors, (539), 539 states have call successors, (539) [2022-07-12 13:30:13,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2921 transitions. [2022-07-12 13:30:13,767 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2921 transitions. Word has length 321 [2022-07-12 13:30:13,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:30:13,771 INFO L495 AbstractCegarLoop]: Abstraction has 2140 states and 2921 transitions. [2022-07-12 13:30:13,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (35), 5 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-12 13:30:13,771 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2921 transitions. [2022-07-12 13:30:13,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2022-07-12 13:30:13,779 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:30:13,779 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:30:13,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 13:30:13,780 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:30:13,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:30:13,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1710939226, now seen corresponding path program 1 times [2022-07-12 13:30:13,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:30:13,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114016506] [2022-07-12 13:30:13,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:30:13,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:30:13,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:30:14,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:14,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:14,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:30:14,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:14,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:30:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:14,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:30:14,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:14,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:30:14,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:14,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:30:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:14,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:30:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:14,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:14,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:30:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:14,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-12 13:30:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-12 13:30:14,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:14,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-12 13:30:14,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-12 13:30:14,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-12 13:30:14,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 13:30:14,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-12 13:30:14,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 13:30:14,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-12 13:30:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-12 13:30:14,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:30:14,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-12 13:30:14,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-12 13:30:14,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-12 13:30:14,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-12 13:30:14,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-12 13:30:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-12 13:30:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-12 13:30:14,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-12 13:30:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-12 13:30:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-07-12 13:30:14,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-07-12 13:30:14,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:30:14,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:14,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:14,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:14,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1230 trivial. 0 not checked. [2022-07-12 13:30:14,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:30:14,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114016506] [2022-07-12 13:30:14,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114016506] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:30:14,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:30:14,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 13:30:14,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623027498] [2022-07-12 13:30:14,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:30:14,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 13:30:14,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:30:14,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 13:30:14,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-12 13:30:14,428 INFO L87 Difference]: Start difference. First operand 2140 states and 2921 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-07-12 13:30:17,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:30:17,887 INFO L93 Difference]: Finished difference Result 5616 states and 8135 transitions. [2022-07-12 13:30:17,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 13:30:17,887 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 352 [2022-07-12 13:30:17,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:30:17,908 INFO L225 Difference]: With dead ends: 5616 [2022-07-12 13:30:17,908 INFO L226 Difference]: Without dead ends: 3546 [2022-07-12 13:30:17,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2022-07-12 13:30:17,917 INFO L413 NwaCegarLoop]: 1304 mSDtfsCounter, 4223 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 2164 mSolverCounterSat, 3222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4355 SdHoareTripleChecker+Valid, 2852 SdHoareTripleChecker+Invalid, 5386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3222 IncrementalHoareTripleChecker+Valid, 2164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-12 13:30:17,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4355 Valid, 2852 Invalid, 5386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3222 Valid, 2164 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-12 13:30:17,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3546 states. [2022-07-12 13:30:18,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3546 to 2066. [2022-07-12 13:30:18,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2066 states, 1373 states have (on average 1.2738528769118718) internal successors, (1749), 1403 states have internal predecessors, (1749), 523 states have call successors, (523), 170 states have call predecessors, (523), 169 states have return successors, (521), 517 states have call predecessors, (521), 521 states have call successors, (521) [2022-07-12 13:30:18,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2066 states to 2066 states and 2793 transitions. [2022-07-12 13:30:18,028 INFO L78 Accepts]: Start accepts. Automaton has 2066 states and 2793 transitions. Word has length 352 [2022-07-12 13:30:18,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:30:18,028 INFO L495 AbstractCegarLoop]: Abstraction has 2066 states and 2793 transitions. [2022-07-12 13:30:18,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-07-12 13:30:18,028 INFO L276 IsEmpty]: Start isEmpty. Operand 2066 states and 2793 transitions. [2022-07-12 13:30:18,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2022-07-12 13:30:18,034 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:30:18,034 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:30:18,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 13:30:18,034 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:30:18,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:30:18,035 INFO L85 PathProgramCache]: Analyzing trace with hash 137240625, now seen corresponding path program 1 times [2022-07-12 13:30:18,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:30:18,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434953509] [2022-07-12 13:30:18,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:30:18,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:30:18,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:30:18,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:30:18,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:18,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:18,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:30:18,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:30:18,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:18,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:18,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:30:18,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:18,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:30:18,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:18,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:18,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:30:18,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:18,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:30:18,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:18,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:18,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-12 13:30:18,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:18,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-12 13:30:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:18,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:18,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-12 13:30:18,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-12 13:30:18,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-12 13:30:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 13:30:18,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-12 13:30:18,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 13:30:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-12 13:30:18,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-12 13:30:18,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:30:18,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-12 13:30:18,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-12 13:30:18,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-12 13:30:18,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-12 13:30:18,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-12 13:30:18,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-12 13:30:18,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-12 13:30:18,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-12 13:30:18,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-07-12 13:30:18,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-07-12 13:30:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-07-12 13:30:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-12 13:30:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-12 13:30:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:18,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:18,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1230 trivial. 0 not checked. [2022-07-12 13:30:18,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:30:18,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434953509] [2022-07-12 13:30:18,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434953509] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:30:18,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:30:18,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 13:30:18,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207008609] [2022-07-12 13:30:18,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:30:18,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 13:30:18,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:30:18,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 13:30:18,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-12 13:30:18,496 INFO L87 Difference]: Start difference. First operand 2066 states and 2793 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-07-12 13:30:21,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:30:21,222 INFO L93 Difference]: Finished difference Result 5260 states and 7525 transitions. [2022-07-12 13:30:21,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:30:21,223 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 346 [2022-07-12 13:30:21,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:30:21,236 INFO L225 Difference]: With dead ends: 5260 [2022-07-12 13:30:21,236 INFO L226 Difference]: Without dead ends: 3264 [2022-07-12 13:30:21,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-07-12 13:30:21,243 INFO L413 NwaCegarLoop]: 1303 mSDtfsCounter, 4067 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 2970 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4213 SdHoareTripleChecker+Valid, 2486 SdHoareTripleChecker+Invalid, 4382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2970 IncrementalHoareTripleChecker+Valid, 1412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-12 13:30:21,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4213 Valid, 2486 Invalid, 4382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2970 Valid, 1412 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-12 13:30:21,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3264 states. [2022-07-12 13:30:21,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3264 to 2028. [2022-07-12 13:30:21,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 1343 states have (on average 1.265078183172003) internal successors, (1699), 1373 states have internal predecessors, (1699), 515 states have call successors, (515), 170 states have call predecessors, (515), 169 states have return successors, (513), 509 states have call predecessors, (513), 513 states have call successors, (513) [2022-07-12 13:30:21,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2727 transitions. [2022-07-12 13:30:21,329 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2727 transitions. Word has length 346 [2022-07-12 13:30:21,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:30:21,331 INFO L495 AbstractCegarLoop]: Abstraction has 2028 states and 2727 transitions. [2022-07-12 13:30:21,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-07-12 13:30:21,331 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2727 transitions. [2022-07-12 13:30:21,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-07-12 13:30:21,336 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:30:21,337 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:30:21,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 13:30:21,338 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:30:21,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:30:21,339 INFO L85 PathProgramCache]: Analyzing trace with hash 999442607, now seen corresponding path program 1 times [2022-07-12 13:30:21,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:30:21,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726396553] [2022-07-12 13:30:21,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:30:21,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:30:21,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:30:21,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:21,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:21,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:30:21,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:21,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:30:21,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:21,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:30:21,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:21,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:21,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:30:21,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:21,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:21,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:30:21,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:30:21,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:21,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:21,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:30:21,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:21,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-12 13:30:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:21,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-12 13:30:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:21,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-12 13:30:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-12 13:30:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-12 13:30:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 13:30:21,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-12 13:30:21,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 13:30:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-12 13:30:21,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-12 13:30:21,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:30:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-12 13:30:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-12 13:30:21,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-12 13:30:21,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-12 13:30:21,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-12 13:30:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-12 13:30:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-12 13:30:21,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-12 13:30:21,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-12 13:30:21,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-12 13:30:21,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-12 13:30:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-12 13:30:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:21,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:21,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 13:30:21,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:21,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:21,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1530 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1530 trivial. 0 not checked. [2022-07-12 13:30:21,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:30:21,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726396553] [2022-07-12 13:30:21,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726396553] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:30:21,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:30:21,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 13:30:21,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302545726] [2022-07-12 13:30:21,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:30:21,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 13:30:21,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:30:21,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 13:30:21,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-12 13:30:21,800 INFO L87 Difference]: Start difference. First operand 2028 states and 2727 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2022-07-12 13:30:23,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:30:23,957 INFO L93 Difference]: Finished difference Result 2778 states and 3916 transitions. [2022-07-12 13:30:23,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 13:30:23,959 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 348 [2022-07-12 13:30:23,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:30:23,973 INFO L225 Difference]: With dead ends: 2778 [2022-07-12 13:30:23,973 INFO L226 Difference]: Without dead ends: 2773 [2022-07-12 13:30:23,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-07-12 13:30:23,977 INFO L413 NwaCegarLoop]: 1285 mSDtfsCounter, 3256 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 2026 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3371 SdHoareTripleChecker+Valid, 1856 SdHoareTripleChecker+Invalid, 3186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2026 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-12 13:30:23,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3371 Valid, 1856 Invalid, 3186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2026 Valid, 1160 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-12 13:30:23,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2773 states. [2022-07-12 13:30:24,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2773 to 2028. [2022-07-12 13:30:24,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 1343 states have (on average 1.2643335815338794) internal successors, (1698), 1373 states have internal predecessors, (1698), 515 states have call successors, (515), 170 states have call predecessors, (515), 169 states have return successors, (513), 509 states have call predecessors, (513), 513 states have call successors, (513) [2022-07-12 13:30:24,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2726 transitions. [2022-07-12 13:30:24,104 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2726 transitions. Word has length 348 [2022-07-12 13:30:24,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:30:24,105 INFO L495 AbstractCegarLoop]: Abstraction has 2028 states and 2726 transitions. [2022-07-12 13:30:24,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2022-07-12 13:30:24,105 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2726 transitions. [2022-07-12 13:30:24,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-07-12 13:30:24,111 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:30:24,111 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:30:24,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 13:30:24,112 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:30:24,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:30:24,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1056700909, now seen corresponding path program 1 times [2022-07-12 13:30:24,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:30:24,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781144588] [2022-07-12 13:30:24,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:30:24,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:30:24,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:30:24,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:24,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:30:24,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:24,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:24,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:30:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:24,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:24,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:30:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:24,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:30:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:30:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:24,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:24,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:30:24,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:24,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:30:24,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:24,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:24,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-12 13:30:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-12 13:30:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-12 13:30:24,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-12 13:30:24,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-12 13:30:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 13:30:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-12 13:30:24,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 13:30:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-12 13:30:24,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-12 13:30:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:30:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-12 13:30:24,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-12 13:30:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-12 13:30:24,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-12 13:30:24,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-12 13:30:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-12 13:30:24,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-12 13:30:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-12 13:30:24,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-12 13:30:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-12 13:30:24,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-12 13:30:24,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-12 13:30:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:24,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:24,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 13:30:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:24,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:24,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1530 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1530 trivial. 0 not checked. [2022-07-12 13:30:24,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:30:24,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781144588] [2022-07-12 13:30:24,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781144588] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:30:24,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:30:24,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 13:30:24,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922994684] [2022-07-12 13:30:24,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:30:24,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 13:30:24,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:30:24,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 13:30:24,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-12 13:30:24,671 INFO L87 Difference]: Start difference. First operand 2028 states and 2726 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-07-12 13:30:29,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:30:29,373 INFO L93 Difference]: Finished difference Result 7417 states and 10635 transitions. [2022-07-12 13:30:29,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:30:29,373 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 348 [2022-07-12 13:30:29,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:30:29,403 INFO L225 Difference]: With dead ends: 7417 [2022-07-12 13:30:29,403 INFO L226 Difference]: Without dead ends: 5429 [2022-07-12 13:30:29,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-07-12 13:30:29,415 INFO L413 NwaCegarLoop]: 1567 mSDtfsCounter, 4434 mSDsluCounter, 1999 mSDsCounter, 0 mSdLazyCounter, 3297 mSolverCounterSat, 3156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4558 SdHoareTripleChecker+Valid, 3566 SdHoareTripleChecker+Invalid, 6453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3156 IncrementalHoareTripleChecker+Valid, 3297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-07-12 13:30:29,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4558 Valid, 3566 Invalid, 6453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3156 Valid, 3297 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-07-12 13:30:29,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5429 states. [2022-07-12 13:30:29,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5429 to 3949. [2022-07-12 13:30:29,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3949 states, 2623 states have (on average 1.2683949675943575) internal successors, (3327), 2681 states have internal predecessors, (3327), 993 states have call successors, (993), 333 states have call predecessors, (993), 332 states have return successors, (1025), 983 states have call predecessors, (1025), 991 states have call successors, (1025) [2022-07-12 13:30:29,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3949 states to 3949 states and 5345 transitions. [2022-07-12 13:30:29,620 INFO L78 Accepts]: Start accepts. Automaton has 3949 states and 5345 transitions. Word has length 348 [2022-07-12 13:30:29,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:30:29,620 INFO L495 AbstractCegarLoop]: Abstraction has 3949 states and 5345 transitions. [2022-07-12 13:30:29,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-07-12 13:30:29,621 INFO L276 IsEmpty]: Start isEmpty. Operand 3949 states and 5345 transitions. [2022-07-12 13:30:29,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2022-07-12 13:30:29,627 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:30:29,627 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:30:29,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 13:30:29,627 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:30:29,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:30:29,628 INFO L85 PathProgramCache]: Analyzing trace with hash -138492121, now seen corresponding path program 1 times [2022-07-12 13:30:29,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:30:29,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413596188] [2022-07-12 13:30:29,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:30:29,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:30:29,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:30:29,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:29,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:29,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:30:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:29,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:30:29,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:29,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:29,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:30:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:29,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:30:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:30:29,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:30:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:29,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:30:29,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:29,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:29,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-12 13:30:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-12 13:30:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-12 13:30:29,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-12 13:30:29,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-12 13:30:29,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 13:30:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-12 13:30:29,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 13:30:29,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-12 13:30:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-12 13:30:29,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:30:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-12 13:30:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:29,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-12 13:30:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:30,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-12 13:30:30,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:30,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-12 13:30:30,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:30,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-12 13:30:30,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:30,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-12 13:30:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:30,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-12 13:30:30,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:30,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-12 13:30:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:30,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-07-12 13:30:30,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:30,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-07-12 13:30:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:30,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2022-07-12 13:30:30,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:30,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-07-12 13:30:30,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:30,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:30:30,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:30,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:30,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:30,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:30,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:30,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:30,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:30,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1239 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1233 trivial. 0 not checked. [2022-07-12 13:30:30,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:30:30,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413596188] [2022-07-12 13:30:30,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413596188] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 13:30:30,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476616863] [2022-07-12 13:30:30,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:30:30,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 13:30:30,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:30:30,082 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) [2022-07-12 13:30:30,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 13:30:30,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:30,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 3980 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:30:30,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:30:30,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1239 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1239 trivial. 0 not checked. [2022-07-12 13:30:30,877 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:30:30,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476616863] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:30:30,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 13:30:30,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-07-12 13:30:30,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223507434] [2022-07-12 13:30:30,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:30:30,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:30:30,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:30:30,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:30:30,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:30:30,878 INFO L87 Difference]: Start difference. First operand 3949 states and 5345 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-07-12 13:30:31,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:30:31,089 INFO L93 Difference]: Finished difference Result 8032 states and 10902 transitions. [2022-07-12 13:30:31,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:30:31,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 364 [2022-07-12 13:30:31,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:30:31,106 INFO L225 Difference]: With dead ends: 8032 [2022-07-12 13:30:31,106 INFO L226 Difference]: Without dead ends: 4153 [2022-07-12 13:30:31,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 469 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:30:31,117 INFO L413 NwaCegarLoop]: 1478 mSDtfsCounter, 202 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 2803 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 13:30:31,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 2803 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 13:30:31,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4153 states. [2022-07-12 13:30:31,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4153 to 4139. [2022-07-12 13:30:31,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4139 states, 2793 states have (on average 1.2753311851056213) internal successors, (3562), 2855 states have internal predecessors, (3562), 1005 states have call successors, (1005), 341 states have call predecessors, (1005), 340 states have return successors, (1037), 992 states have call predecessors, (1037), 1003 states have call successors, (1037) [2022-07-12 13:30:31,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4139 states to 4139 states and 5604 transitions. [2022-07-12 13:30:31,321 INFO L78 Accepts]: Start accepts. Automaton has 4139 states and 5604 transitions. Word has length 364 [2022-07-12 13:30:31,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:30:31,321 INFO L495 AbstractCegarLoop]: Abstraction has 4139 states and 5604 transitions. [2022-07-12 13:30:31,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-07-12 13:30:31,322 INFO L276 IsEmpty]: Start isEmpty. Operand 4139 states and 5604 transitions. [2022-07-12 13:30:31,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2022-07-12 13:30:31,340 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:30:31,341 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:30:31,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-12 13:30:31,555 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 [2022-07-12 13:30:31,556 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:30:31,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:30:31,556 INFO L85 PathProgramCache]: Analyzing trace with hash -297851237, now seen corresponding path program 1 times [2022-07-12 13:30:31,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:30:31,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006683769] [2022-07-12 13:30:31,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:30:31,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:30:31,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:30:31,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:31,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:31,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:30:31,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:31,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:31,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:30:31,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:30:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:31,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:30:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:31,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:31,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:30:31,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:30:31,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:31,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:31,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:30:31,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:31,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-12 13:30:31,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:31,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:31,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-12 13:30:31,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:31,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:31,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-12 13:30:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-12 13:30:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-12 13:30:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 13:30:31,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-12 13:30:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 13:30:31,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-12 13:30:31,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-12 13:30:31,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:30:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-12 13:30:31,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-12 13:30:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-12 13:30:31,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-12 13:30:31,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:31,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-12 13:30:31,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:32,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-12 13:30:32,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:32,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-12 13:30:32,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:32,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-12 13:30:32,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:32,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-12 13:30:32,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:32,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-12 13:30:32,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:32,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-12 13:30:32,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:32,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-12 13:30:32,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:32,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:32,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:32,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:32,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:32,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:32,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 13:30:32,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:32,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:32,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:32,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:32,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-07-12 13:30:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:32,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-12 13:30:32,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:32,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-12 13:30:32,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:32,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-07-12 13:30:32,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:32,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-07-12 13:30:32,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:32,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:30:32,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:32,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:32,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:32,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:32,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:32,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1541 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 1533 trivial. 0 not checked. [2022-07-12 13:30:32,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:30:32,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006683769] [2022-07-12 13:30:32,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006683769] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 13:30:32,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946795249] [2022-07-12 13:30:32,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:30:32,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 13:30:32,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:30:32,140 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) [2022-07-12 13:30:32,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 13:30:32,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:32,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 4438 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:30:33,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:30:33,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1541 backedges. 282 proven. 0 refuted. 0 times theorem prover too weak. 1259 trivial. 0 not checked. [2022-07-12 13:30:33,080 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:30:33,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946795249] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:30:33,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 13:30:33,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-12 13:30:33,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383995126] [2022-07-12 13:30:33,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:30:33,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:30:33,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:30:33,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:30:33,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-07-12 13:30:33,082 INFO L87 Difference]: Start difference. First operand 4139 states and 5604 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-07-12 13:30:33,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:30:33,328 INFO L93 Difference]: Finished difference Result 10520 states and 14156 transitions. [2022-07-12 13:30:33,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:30:33,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 433 [2022-07-12 13:30:33,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:30:33,365 INFO L225 Difference]: With dead ends: 10520 [2022-07-12 13:30:33,365 INFO L226 Difference]: Without dead ends: 6455 [2022-07-12 13:30:33,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 559 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-07-12 13:30:33,386 INFO L413 NwaCegarLoop]: 1619 mSDtfsCounter, 912 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:30:33,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 2868 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 13:30:33,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6455 states. [2022-07-12 13:30:33,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6455 to 6442. [2022-07-12 13:30:33,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6442 states, 4300 states have (on average 1.27) internal successors, (5461), 4398 states have internal predecessors, (5461), 1561 states have call successors, (1561), 581 states have call predecessors, (1561), 580 states have return successors, (1593), 1537 states have call predecessors, (1593), 1559 states have call successors, (1593) [2022-07-12 13:30:33,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6442 states to 6442 states and 8615 transitions. [2022-07-12 13:30:33,704 INFO L78 Accepts]: Start accepts. Automaton has 6442 states and 8615 transitions. Word has length 433 [2022-07-12 13:30:33,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:30:33,704 INFO L495 AbstractCegarLoop]: Abstraction has 6442 states and 8615 transitions. [2022-07-12 13:30:33,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-07-12 13:30:33,705 INFO L276 IsEmpty]: Start isEmpty. Operand 6442 states and 8615 transitions. [2022-07-12 13:30:33,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2022-07-12 13:30:33,716 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:30:33,717 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:30:33,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-12 13:30:33,931 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 [2022-07-12 13:30:33,932 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:30:33,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:30:33,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1010392839, now seen corresponding path program 1 times [2022-07-12 13:30:33,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:30:33,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050383515] [2022-07-12 13:30:33,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:30:33,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:30:34,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:30:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:34,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:30:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:34,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:30:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:34,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:30:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:34,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:30:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:34,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:34,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:30:34,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:34,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:30:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:34,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:34,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:30:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:34,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:34,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-12 13:30:34,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:34,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:34,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-12 13:30:34,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:34,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:34,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-12 13:30:34,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-12 13:30:34,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-12 13:30:34,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 13:30:34,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-12 13:30:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 13:30:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-12 13:30:34,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-12 13:30:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:30:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-12 13:30:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-12 13:30:34,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-12 13:30:34,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-12 13:30:34,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-12 13:30:34,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-12 13:30:34,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-12 13:30:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-12 13:30:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-12 13:30:34,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-12 13:30:34,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-12 13:30:34,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-12 13:30:34,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:34,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 13:30:34,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:34,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:34,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-07-12 13:30:34,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-07-12 13:30:34,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-07-12 13:30:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-12 13:30:34,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-07-12 13:30:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2022-07-12 13:30:34,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2022-07-12 13:30:34,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:34,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:34,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1535 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1535 trivial. 0 not checked. [2022-07-12 13:30:34,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:30:34,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050383515] [2022-07-12 13:30:34,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050383515] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:30:34,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:30:34,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 13:30:34,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182803357] [2022-07-12 13:30:34,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:30:34,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 13:30:34,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:30:34,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 13:30:34,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:30:34,458 INFO L87 Difference]: Start difference. First operand 6442 states and 8615 transitions. Second operand has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (50), 8 states have call predecessors, (50), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-07-12 13:30:38,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:30:38,667 INFO L93 Difference]: Finished difference Result 16078 states and 23275 transitions. [2022-07-12 13:30:38,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 13:30:38,668 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (50), 8 states have call predecessors, (50), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 422 [2022-07-12 13:30:38,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:30:38,707 INFO L225 Difference]: With dead ends: 16078 [2022-07-12 13:30:38,707 INFO L226 Difference]: Without dead ends: 9710 [2022-07-12 13:30:38,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-07-12 13:30:38,729 INFO L413 NwaCegarLoop]: 1338 mSDtfsCounter, 3090 mSDsluCounter, 2104 mSDsCounter, 0 mSdLazyCounter, 2930 mSolverCounterSat, 2655 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3181 SdHoareTripleChecker+Valid, 3442 SdHoareTripleChecker+Invalid, 5585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2655 IncrementalHoareTripleChecker+Valid, 2930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-12 13:30:38,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3181 Valid, 3442 Invalid, 5585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2655 Valid, 2930 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-12 13:30:38,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9710 states. [2022-07-12 13:30:39,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9710 to 6736. [2022-07-12 13:30:39,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6736 states, 4498 states have (on average 1.263895064473099) internal successors, (5685), 4590 states have internal predecessors, (5685), 1617 states have call successors, (1617), 581 states have call predecessors, (1617), 620 states have return successors, (1783), 1643 states have call predecessors, (1783), 1615 states have call successors, (1783) [2022-07-12 13:30:39,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6736 states to 6736 states and 9085 transitions. [2022-07-12 13:30:39,116 INFO L78 Accepts]: Start accepts. Automaton has 6736 states and 9085 transitions. Word has length 422 [2022-07-12 13:30:39,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:30:39,117 INFO L495 AbstractCegarLoop]: Abstraction has 6736 states and 9085 transitions. [2022-07-12 13:30:39,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (50), 8 states have call predecessors, (50), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-07-12 13:30:39,118 INFO L276 IsEmpty]: Start isEmpty. Operand 6736 states and 9085 transitions. [2022-07-12 13:30:39,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2022-07-12 13:30:39,129 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:30:39,129 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:30:39,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 13:30:39,130 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:30:39,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:30:39,130 INFO L85 PathProgramCache]: Analyzing trace with hash -198998945, now seen corresponding path program 1 times [2022-07-12 13:30:39,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:30:39,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329683714] [2022-07-12 13:30:39,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:30:39,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:30:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:30:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:39,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:39,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:30:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:39,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:30:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:39,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:30:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:39,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:30:39,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:39,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:39,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:30:39,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:39,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:30:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:39,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:39,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:30:39,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:39,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-12 13:30:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:39,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-12 13:30:39,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-12 13:30:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-12 13:30:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-12 13:30:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 13:30:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-12 13:30:39,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 13:30:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-12 13:30:39,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-12 13:30:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:30:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-12 13:30:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-12 13:30:39,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-12 13:30:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-12 13:30:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-12 13:30:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-12 13:30:39,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-12 13:30:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-12 13:30:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-12 13:30:39,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-12 13:30:39,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-12 13:30:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-12 13:30:39,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:39,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:39,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 13:30:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:39,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:39,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-07-12 13:30:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-07-12 13:30:39,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-07-12 13:30:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-12 13:30:39,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2022-07-12 13:30:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2022-07-12 13:30:39,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:39,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-07-12 13:30:39,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:40,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-07-12 13:30:40,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:40,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:40,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:40,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1535 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 1475 trivial. 0 not checked. [2022-07-12 13:30:40,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:30:40,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329683714] [2022-07-12 13:30:40,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329683714] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 13:30:40,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471192256] [2022-07-12 13:30:40,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:30:40,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 13:30:40,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:30:40,023 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) [2022-07-12 13:30:40,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-12 13:30:40,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:40,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 4405 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-12 13:30:41,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:30:41,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1535 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1533 trivial. 0 not checked. [2022-07-12 13:30:41,059 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:30:41,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471192256] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:30:41,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 13:30:41,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2022-07-12 13:30:41,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710462150] [2022-07-12 13:30:41,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:30:41,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 13:30:41,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:30:41,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 13:30:41,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-07-12 13:30:41,060 INFO L87 Difference]: Start difference. First operand 6736 states and 9085 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-07-12 13:30:41,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:30:41,305 INFO L93 Difference]: Finished difference Result 10294 states and 13852 transitions. [2022-07-12 13:30:41,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 13:30:41,305 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 427 [2022-07-12 13:30:41,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:30:41,327 INFO L225 Difference]: With dead ends: 10294 [2022-07-12 13:30:41,328 INFO L226 Difference]: Without dead ends: 3627 [2022-07-12 13:30:41,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 562 GetRequests, 551 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-07-12 13:30:41,343 INFO L413 NwaCegarLoop]: 1458 mSDtfsCounter, 14 mSDsluCounter, 2906 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4364 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 13:30:41,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 4364 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 13:30:41,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3627 states. [2022-07-12 13:30:41,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3627 to 3573. [2022-07-12 13:30:41,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3573 states, 2395 states have (on average 1.2592901878914404) internal successors, (3016), 2442 states have internal predecessors, (3016), 847 states have call successors, (847), 311 states have call predecessors, (847), 330 states have return successors, (929), 860 states have call predecessors, (929), 845 states have call successors, (929) [2022-07-12 13:30:41,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3573 states to 3573 states and 4792 transitions. [2022-07-12 13:30:41,484 INFO L78 Accepts]: Start accepts. Automaton has 3573 states and 4792 transitions. Word has length 427 [2022-07-12 13:30:41,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:30:41,484 INFO L495 AbstractCegarLoop]: Abstraction has 3573 states and 4792 transitions. [2022-07-12 13:30:41,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-07-12 13:30:41,485 INFO L276 IsEmpty]: Start isEmpty. Operand 3573 states and 4792 transitions. [2022-07-12 13:30:41,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2022-07-12 13:30:41,490 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:30:41,491 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:30:41,517 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-12 13:30:41,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 13:30:41,707 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:30:41,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:30:41,708 INFO L85 PathProgramCache]: Analyzing trace with hash 168754272, now seen corresponding path program 1 times [2022-07-12 13:30:41,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:30:41,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716796009] [2022-07-12 13:30:41,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:30:41,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:30:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:30:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:42,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:30:42,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:30:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:42,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:42,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:30:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:30:42,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:42,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:30:42,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:42,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:30:42,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:42,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:30:42,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:42,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-12 13:30:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-12 13:30:42,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:42,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-12 13:30:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-12 13:30:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-12 13:30:42,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 13:30:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-12 13:30:42,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 13:30:42,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-12 13:30:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-12 13:30:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:30:42,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-12 13:30:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-12 13:30:42,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-12 13:30:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-12 13:30:42,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-12 13:30:42,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-12 13:30:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-12 13:30:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-12 13:30:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-12 13:30:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-12 13:30:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-12 13:30:42,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-12 13:30:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:42,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:42,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:42,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 13:30:42,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-12 13:30:42,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-07-12 13:30:42,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:42,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-07-12 13:30:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:42,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:42,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 13:30:42,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:42,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2022-07-12 13:30:42,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-07-12 13:30:42,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-07-12 13:30:42,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2022-07-12 13:30:42,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2022-07-12 13:30:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-07-12 13:30:42,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2022-07-12 13:30:42,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2022-07-12 13:30:42,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:42,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:42,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 1832 trivial. 0 not checked. [2022-07-12 13:30:42,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:30:42,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716796009] [2022-07-12 13:30:42,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716796009] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 13:30:42,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33855005] [2022-07-12 13:30:42,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:30:42,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 13:30:42,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:30:42,748 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) [2022-07-12 13:30:42,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-12 13:30:43,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:43,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 4786 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-12 13:30:43,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:30:43,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1890 trivial. 0 not checked. [2022-07-12 13:30:43,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:30:43,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33855005] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:30:43,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 13:30:43,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2022-07-12 13:30:43,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240401642] [2022-07-12 13:30:43,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:30:43,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 13:30:43,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:30:43,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 13:30:43,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-07-12 13:30:43,759 INFO L87 Difference]: Start difference. First operand 3573 states and 4792 transitions. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) [2022-07-12 13:30:44,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:30:44,133 INFO L93 Difference]: Finished difference Result 7061 states and 9679 transitions. [2022-07-12 13:30:44,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 13:30:44,134 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) Word has length 487 [2022-07-12 13:30:44,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:30:44,145 INFO L225 Difference]: With dead ends: 7061 [2022-07-12 13:30:44,145 INFO L226 Difference]: Without dead ends: 3597 [2022-07-12 13:30:44,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 644 GetRequests, 626 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2022-07-12 13:30:44,154 INFO L413 NwaCegarLoop]: 1423 mSDtfsCounter, 24 mSDsluCounter, 8477 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 9900 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 13:30:44,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 9900 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 13:30:44,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3597 states. [2022-07-12 13:30:44,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3597 to 3585. [2022-07-12 13:30:44,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3585 states, 2407 states have (on average 1.2579975072704612) internal successors, (3028), 2454 states have internal predecessors, (3028), 847 states have call successors, (847), 311 states have call predecessors, (847), 330 states have return successors, (929), 860 states have call predecessors, (929), 845 states have call successors, (929) [2022-07-12 13:30:44,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3585 states to 3585 states and 4804 transitions. [2022-07-12 13:30:44,320 INFO L78 Accepts]: Start accepts. Automaton has 3585 states and 4804 transitions. Word has length 487 [2022-07-12 13:30:44,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:30:44,321 INFO L495 AbstractCegarLoop]: Abstraction has 3585 states and 4804 transitions. [2022-07-12 13:30:44,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) [2022-07-12 13:30:44,321 INFO L276 IsEmpty]: Start isEmpty. Operand 3585 states and 4804 transitions. [2022-07-12 13:30:44,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 581 [2022-07-12 13:30:44,327 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:30:44,328 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 11, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:30:44,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-12 13:30:44,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 13:30:44,543 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:30:44,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:30:44,544 INFO L85 PathProgramCache]: Analyzing trace with hash -2142027694, now seen corresponding path program 1 times [2022-07-12 13:30:44,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:30:44,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86384255] [2022-07-12 13:30:44,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:30:44,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:30:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:30:44,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:30:44,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:44,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:30:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:44,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:30:44,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:44,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:30:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:44,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:30:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:44,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:30:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:44,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:30:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:44,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:44,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-12 13:30:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:44,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-12 13:30:44,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-12 13:30:44,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-12 13:30:44,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-12 13:30:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 13:30:44,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-12 13:30:44,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 13:30:44,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-12 13:30:44,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-12 13:30:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:30:44,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-12 13:30:44,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-12 13:30:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-12 13:30:44,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-12 13:30:44,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-12 13:30:44,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-12 13:30:44,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-12 13:30:44,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-12 13:30:44,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-12 13:30:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-12 13:30:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-12 13:30:44,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-12 13:30:44,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:44,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 13:30:44,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:44,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:44,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-12 13:30:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-07-12 13:30:44,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:44,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-07-12 13:30:44,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:44,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:45,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 13:30:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:45,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:45,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2022-07-12 13:30:45,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-07-12 13:30:45,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-07-12 13:30:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-07-12 13:30:45,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2022-07-12 13:30:45,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-07-12 13:30:45,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2022-07-12 13:30:45,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2022-07-12 13:30:45,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473 [2022-07-12 13:30:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-07-12 13:30:45,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 13:30:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:45,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 13:30:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 13:30:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:45,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 13:30:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 13:30:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:45,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 13:30:45,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 13:30:45,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:45,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:45,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 13:30:45,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:45,136 INFO L134 CoverageAnalysis]: Checked inductivity of 2086 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2086 trivial. 0 not checked. [2022-07-12 13:30:45,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:30:45,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86384255] [2022-07-12 13:30:45,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86384255] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:30:45,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:30:45,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 13:30:45,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339515241] [2022-07-12 13:30:45,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:30:45,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 13:30:45,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:30:45,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 13:30:45,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:30:45,138 INFO L87 Difference]: Start difference. First operand 3585 states and 4804 transitions. Second operand has 9 states, 9 states have (on average 18.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (66), 8 states have call predecessors, (66), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-07-12 13:30:48,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:30:48,613 INFO L93 Difference]: Finished difference Result 8534 states and 12359 transitions. [2022-07-12 13:30:48,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:30:48,614 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (66), 8 states have call predecessors, (66), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 580 [2022-07-12 13:30:48,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:30:48,633 INFO L225 Difference]: With dead ends: 8534 [2022-07-12 13:30:48,633 INFO L226 Difference]: Without dead ends: 5058 [2022-07-12 13:30:48,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-07-12 13:30:48,644 INFO L413 NwaCegarLoop]: 1324 mSDtfsCounter, 2265 mSDsluCounter, 2094 mSDsCounter, 0 mSdLazyCounter, 3182 mSolverCounterSat, 1849 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2356 SdHoareTripleChecker+Valid, 3418 SdHoareTripleChecker+Invalid, 5031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1849 IncrementalHoareTripleChecker+Valid, 3182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:30:48,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2356 Valid, 3418 Invalid, 5031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1849 Valid, 3182 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-12 13:30:48,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5058 states. [2022-07-12 13:30:48,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5058 to 3585. [2022-07-12 13:30:48,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3585 states, 2407 states have (on average 1.2530120481927711) internal successors, (3016), 2454 states have internal predecessors, (3016), 847 states have call successors, (847), 311 states have call predecessors, (847), 330 states have return successors, (929), 860 states have call predecessors, (929), 845 states have call successors, (929) [2022-07-12 13:30:48,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3585 states to 3585 states and 4792 transitions. [2022-07-12 13:30:48,819 INFO L78 Accepts]: Start accepts. Automaton has 3585 states and 4792 transitions. Word has length 580 [2022-07-12 13:30:48,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:30:48,819 INFO L495 AbstractCegarLoop]: Abstraction has 3585 states and 4792 transitions. [2022-07-12 13:30:48,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (66), 8 states have call predecessors, (66), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-07-12 13:30:48,820 INFO L276 IsEmpty]: Start isEmpty. Operand 3585 states and 4792 transitions. [2022-07-12 13:30:48,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2022-07-12 13:30:48,825 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:30:48,826 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:30:48,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 13:30:48,826 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:30:48,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:30:48,826 INFO L85 PathProgramCache]: Analyzing trace with hash 124789480, now seen corresponding path program 1 times [2022-07-12 13:30:48,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:30:48,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294695100] [2022-07-12 13:30:48,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:30:48,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:30:49,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:30:49,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:49,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:30:49,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:49,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:30:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:49,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:49,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:30:49,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:49,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:30:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:30:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:49,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:30:49,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:49,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:30:49,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:49,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-12 13:30:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:49,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-12 13:30:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-12 13:30:49,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-12 13:30:49,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-12 13:30:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 13:30:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-12 13:30:49,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 13:30:49,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-12 13:30:49,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-12 13:30:49,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:30:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-12 13:30:49,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-12 13:30:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-12 13:30:49,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-12 13:30:49,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-12 13:30:49,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-12 13:30:49,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-12 13:30:49,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-12 13:30:49,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-12 13:30:49,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-12 13:30:49,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-12 13:30:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-12 13:30:49,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:49,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:49,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 13:30:49,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:49,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:49,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-12 13:30:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-07-12 13:30:49,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:49,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-07-12 13:30:49,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:49,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:49,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 13:30:49,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:49,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:49,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2022-07-12 13:30:49,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2022-07-12 13:30:49,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-07-12 13:30:49,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-07-12 13:30:49,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2022-07-12 13:30:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:30:49,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:30:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:30:49,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:49,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1909 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 1843 trivial. 0 not checked. [2022-07-12 13:30:49,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:30:49,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294695100] [2022-07-12 13:30:49,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294695100] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 13:30:49,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462856177] [2022-07-12 13:30:49,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:30:49,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 13:30:49,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:30:49,628 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) [2022-07-12 13:30:49,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-12 13:30:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:30:50,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 4858 conjuncts, 168 conjunts are in the unsatisfiable core [2022-07-12 13:30:50,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:30:50,666 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-07-12 13:30:50,672 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-07-12 13:30:51,561 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:51,569 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:51,619 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:51,623 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:51,663 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:51,668 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:51,711 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:51,714 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:51,749 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:51,757 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:51,801 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:51,804 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:51,870 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:51,878 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:51,921 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:51,927 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:51,981 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:51,984 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:52,045 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:52,052 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:52,108 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:52,113 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:52,162 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:52,173 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:52,218 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:52,226 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:52,270 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:52,277 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:52,332 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:52,339 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:52,385 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:52,393 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:52,535 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:52,542 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-07-12 13:30:56,610 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2022-07-12 13:30:56,616 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2022-07-12 13:31:00,187 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-07-12 13:31:00,191 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-07-12 13:31:08,207 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 28 [2022-07-12 13:31:08,214 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 28 [2022-07-12 13:31:29,360 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 31 [2022-07-12 13:31:29,366 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 31 [2022-07-12 13:31:39,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:31:39,688 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 44 [2022-07-12 13:31:39,705 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-07-12 13:31:39,705 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 54 [2022-07-12 13:31:39,715 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2022-07-12 13:31:49,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:31:49,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:31:49,145 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-12 13:31:49,156 INFO L356 Elim1Store]: treesize reduction 38, result has 7.3 percent of original size [2022-07-12 13:31:49,156 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 72 treesize of output 47 [2022-07-12 13:31:49,166 INFO L356 Elim1Store]: treesize reduction 37, result has 7.5 percent of original size [2022-07-12 13:31:49,166 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 10 [2022-07-12 13:31:49,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1909 backedges. 63 proven. 573 refuted. 2 times theorem prover too weak. 1271 trivial. 0 not checked. [2022-07-12 13:31:49,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:31:49,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462856177] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 13:31:49,359 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:31:49,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 16] total 25 [2022-07-12 13:31:49,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589214848] [2022-07-12 13:31:49,360 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:31:49,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-07-12 13:31:49,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:31:49,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-07-12 13:31:49,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=652, Unknown=31, NotChecked=0, Total=756 [2022-07-12 13:31:49,361 INFO L87 Difference]: Start difference. First operand 3585 states and 4792 transitions. Second operand has 25 states, 23 states have (on average 13.91304347826087) internal successors, (320), 16 states have internal predecessors, (320), 9 states have call successors, (110), 14 states have call predecessors, (110), 11 states have return successors, (99), 9 states have call predecessors, (99), 9 states have call successors, (99) [2022-07-12 13:32:14,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:32:14,739 INFO L93 Difference]: Finished difference Result 9223 states and 13439 transitions. [2022-07-12 13:32:14,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-07-12 13:32:14,739 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 13.91304347826087) internal successors, (320), 16 states have internal predecessors, (320), 9 states have call successors, (110), 14 states have call predecessors, (110), 11 states have return successors, (99), 9 states have call predecessors, (99), 9 states have call successors, (99) Word has length 506 [2022-07-12 13:32:14,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:32:14,767 INFO L225 Difference]: With dead ends: 9223 [2022-07-12 13:32:14,767 INFO L226 Difference]: Without dead ends: 5673 [2022-07-12 13:32:14,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 686 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 70.1s TimeCoverageRelationStatistics Valid=304, Invalid=1999, Unknown=49, NotChecked=0, Total=2352 [2022-07-12 13:32:14,777 INFO L413 NwaCegarLoop]: 1283 mSDtfsCounter, 2944 mSDsluCounter, 7617 mSDsCounter, 0 mSdLazyCounter, 11339 mSolverCounterSat, 2682 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3042 SdHoareTripleChecker+Valid, 8900 SdHoareTripleChecker+Invalid, 24768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2682 IncrementalHoareTripleChecker+Valid, 11339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10747 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-07-12 13:32:14,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3042 Valid, 8900 Invalid, 24768 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2682 Valid, 11339 Invalid, 0 Unknown, 10747 Unchecked, 7.7s Time] [2022-07-12 13:32:14,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5673 states. [2022-07-12 13:32:14,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5673 to 3652. [2022-07-12 13:32:14,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 2452 states have (on average 1.2495921696574226) internal successors, (3064), 2491 states have internal predecessors, (3064), 859 states have call successors, (859), 313 states have call predecessors, (859), 340 states have return successors, (956), 890 states have call predecessors, (956), 857 states have call successors, (956) [2022-07-12 13:32:14,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 4879 transitions. [2022-07-12 13:32:14,989 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 4879 transitions. Word has length 506 [2022-07-12 13:32:14,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:32:14,990 INFO L495 AbstractCegarLoop]: Abstraction has 3652 states and 4879 transitions. [2022-07-12 13:32:14,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 13.91304347826087) internal successors, (320), 16 states have internal predecessors, (320), 9 states have call successors, (110), 14 states have call predecessors, (110), 11 states have return successors, (99), 9 states have call predecessors, (99), 9 states have call successors, (99) [2022-07-12 13:32:14,990 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 4879 transitions. [2022-07-12 13:32:14,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2022-07-12 13:32:14,997 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:32:14,997 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:32:15,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-12 13:32:15,204 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,SelfDestructingSolverStorable11 [2022-07-12 13:32:15,204 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:32:15,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:32:15,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1287528998, now seen corresponding path program 1 times [2022-07-12 13:32:15,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:32:15,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328376571] [2022-07-12 13:32:15,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:32:15,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:32:15,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:15,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:32:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:15,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:32:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:15,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:32:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:15,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:32:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:15,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:32:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:15,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:32:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:15,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:32:15,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:15,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:32:15,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:15,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:32:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:15,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:32:15,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:15,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:32:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:15,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:32:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:15,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:32:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:15,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:32:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:15,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:32:15,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:15,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:32:15,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:15,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:32:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:15,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:32:15,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:15,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:32:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:15,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:32:15,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:15,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:32:15,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:32:16,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:32:16,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:32:16,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-12 13:32:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:32:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:32:16,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-12 13:32:16,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:32:16,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:32:16,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-12 13:32:16,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-12 13:32:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-12 13:32:16,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-12 13:32:16,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-12 13:32:16,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-12 13:32:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-12 13:32:16,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-12 13:32:16,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-12 13:32:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-12 13:32:16,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-12 13:32:16,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-12 13:32:16,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-07-12 13:32:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-12 13:32:16,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-12 13:32:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-07-12 13:32:16,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-07-12 13:32:16,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2022-07-12 13:32:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-07-12 13:32:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-07-12 13:32:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-07-12 13:32:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:32:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:32:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:32:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 13:32:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:32:16,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:32:16,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2022-07-12 13:32:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-07-12 13:32:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:32:16,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-07-12 13:32:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:32:16,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:32:16,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:32:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 13:32:16,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:32:16,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:32:16,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2022-07-12 13:32:16,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-07-12 13:32:16,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2022-07-12 13:32:16,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2022-07-12 13:32:16,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2022-07-12 13:32:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:32:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:32:16,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:32:16,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:32:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:16,317 INFO L134 CoverageAnalysis]: Checked inductivity of 2020 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 1928 trivial. 0 not checked. [2022-07-12 13:32:16,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:32:16,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328376571] [2022-07-12 13:32:16,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328376571] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 13:32:16,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643618130] [2022-07-12 13:32:16,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:32:16,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 13:32:16,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:32:16,319 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) [2022-07-12 13:32:16,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-12 13:32:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:32:17,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 4948 conjuncts, 239 conjunts are in the unsatisfiable core [2022-07-12 13:32:17,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:32:17,711 INFO L356 Elim1Store]: treesize reduction 84, result has 30.6 percent of original size [2022-07-12 13:32:17,717 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 275962835 treesize of output 274905203