./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/heap-manipulation/dll_of_dll-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 574ddb4e 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/heap-manipulation/dll_of_dll-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0e14b8baad7c8f50637b16b3adcb891ef363d7563e7c4e0e74695e7b8e3d1787 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 13:37:54,730 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 13:37:54,733 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 13:37:54,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 13:37:54,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 13:37:54,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 13:37:54,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 13:37:54,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 13:37:54,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 13:37:54,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 13:37:54,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 13:37:54,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 13:37:54,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 13:37:54,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 13:37:54,794 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 13:37:54,795 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 13:37:54,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 13:37:54,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 13:37:54,797 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 13:37:54,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 13:37:54,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 13:37:54,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 13:37:54,808 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 13:37:54,809 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 13:37:54,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 13:37:54,815 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 13:37:54,815 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 13:37:54,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 13:37:54,817 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 13:37:54,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 13:37:54,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 13:37:54,818 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 13:37:54,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 13:37:54,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 13:37:54,821 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 13:37:54,821 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 13:37:54,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 13:37:54,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 13:37:54,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 13:37:54,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 13:37:54,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 13:37:54,824 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-18 13:37:54,848 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 13:37:54,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 13:37:54,856 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 13:37:54,856 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 13:37:54,857 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 13:37:54,857 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 13:37:54,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 13:37:54,858 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 13:37:54,858 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 13:37:54,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 13:37:54,859 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 13:37:54,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 13:37:54,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 13:37:54,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 13:37:54,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 13:37:54,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 13:37:54,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 13:37:54,860 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 13:37:54,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 13:37:54,860 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 13:37:54,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 13:37:54,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 13:37:54,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 13:37:54,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 13:37:54,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 13:37:54,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 13:37:54,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 13:37:54,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 13:37:54,862 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 13:37:54,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 13:37:54,862 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 13:37:54,864 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 13:37:54,864 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 13:37:54,864 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 13:37:54,865 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 13:37:54,865 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e14b8baad7c8f50637b16b3adcb891ef363d7563e7c4e0e74695e7b8e3d1787 [2023-02-18 13:37:55,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 13:37:55,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 13:37:55,082 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 13:37:55,083 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 13:37:55,083 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 13:37:55,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/heap-manipulation/dll_of_dll-1.i [2023-02-18 13:37:56,047 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 13:37:56,240 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 13:37:56,240 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/dll_of_dll-1.i [2023-02-18 13:37:56,256 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a97b9bcb6/550940adc50e426b9b98488465da343d/FLAGcd15261fd [2023-02-18 13:37:56,266 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a97b9bcb6/550940adc50e426b9b98488465da343d [2023-02-18 13:37:56,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 13:37:56,269 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 13:37:56,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 13:37:56,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 13:37:56,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 13:37:56,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 01:37:56" (1/1) ... [2023-02-18 13:37:56,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fdf2763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:56, skipping insertion in model container [2023-02-18 13:37:56,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 01:37:56" (1/1) ... [2023-02-18 13:37:56,289 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 13:37:56,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 13:37:56,533 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/dll_of_dll-1.i[22634,22647] [2023-02-18 13:37:56,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 13:37:56,590 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 13:37:56,623 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-manipulation/dll_of_dll-1.i[22634,22647] [2023-02-18 13:37:56,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 13:37:56,659 INFO L208 MainTranslator]: Completed translation [2023-02-18 13:37:56,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:56 WrapperNode [2023-02-18 13:37:56,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 13:37:56,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 13:37:56,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 13:37:56,660 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 13:37:56,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:56" (1/1) ... [2023-02-18 13:37:56,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:56" (1/1) ... [2023-02-18 13:37:56,694 INFO L138 Inliner]: procedures = 140, calls = 94, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 228 [2023-02-18 13:37:56,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 13:37:56,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 13:37:56,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 13:37:56,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 13:37:56,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:56" (1/1) ... [2023-02-18 13:37:56,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:56" (1/1) ... [2023-02-18 13:37:56,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:56" (1/1) ... [2023-02-18 13:37:56,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:56" (1/1) ... [2023-02-18 13:37:56,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:56" (1/1) ... [2023-02-18 13:37:56,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:56" (1/1) ... [2023-02-18 13:37:56,721 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:56" (1/1) ... [2023-02-18 13:37:56,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:56" (1/1) ... [2023-02-18 13:37:56,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 13:37:56,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 13:37:56,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 13:37:56,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 13:37:56,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:56" (1/1) ... [2023-02-18 13:37:56,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 13:37:56,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 13:37:56,773 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) [2023-02-18 13:37:56,780 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 [2023-02-18 13:37:56,798 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2023-02-18 13:37:56,798 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2023-02-18 13:37:56,798 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2023-02-18 13:37:56,798 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2023-02-18 13:37:56,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-18 13:37:56,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 13:37:56,799 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2023-02-18 13:37:56,799 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2023-02-18 13:37:56,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-18 13:37:56,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-18 13:37:56,799 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-02-18 13:37:56,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-02-18 13:37:56,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-02-18 13:37:56,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-18 13:37:56,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-02-18 13:37:56,800 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2023-02-18 13:37:56,800 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2023-02-18 13:37:56,800 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2023-02-18 13:37:56,800 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2023-02-18 13:37:56,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 13:37:56,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 13:37:56,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 13:37:56,905 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 13:37:56,907 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 13:37:57,200 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 13:37:57,205 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 13:37:57,205 INFO L300 CfgBuilder]: Removed 38 assume(true) statements. [2023-02-18 13:37:57,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 01:37:57 BoogieIcfgContainer [2023-02-18 13:37:57,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 13:37:57,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 13:37:57,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 13:37:57,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 13:37:57,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 01:37:56" (1/3) ... [2023-02-18 13:37:57,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b82a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 01:37:57, skipping insertion in model container [2023-02-18 13:37:57,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:56" (2/3) ... [2023-02-18 13:37:57,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b82a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 01:37:57, skipping insertion in model container [2023-02-18 13:37:57,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 01:37:57" (3/3) ... [2023-02-18 13:37:57,213 INFO L112 eAbstractionObserver]: Analyzing ICFG dll_of_dll-1.i [2023-02-18 13:37:57,224 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 13:37:57,224 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-18 13:37:57,259 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 13:37:57,264 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@57a9b7ee, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 13:37:57,264 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-18 13:37:57,267 INFO L276 IsEmpty]: Start isEmpty. Operand has 128 states, 96 states have (on average 1.7083333333333333) internal successors, (164), 116 states have internal predecessors, (164), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-02-18 13:37:57,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-02-18 13:37:57,296 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 13:37:57,297 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-02-18 13:37:57,297 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 13:37:57,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 13:37:57,301 INFO L85 PathProgramCache]: Analyzing trace with hash 760908611, now seen corresponding path program 1 times [2023-02-18 13:37:57,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 13:37:57,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297455151] [2023-02-18 13:37:57,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 13:37:57,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 13:37:57,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:37:57,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 13:37:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:37:57,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-02-18 13:37:57,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:37:57,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-02-18 13:37:57,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:37:57,637 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-02-18 13:37:57,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 13:37:57,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297455151] [2023-02-18 13:37:57,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297455151] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 13:37:57,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 13:37:57,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 13:37:57,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291405930] [2023-02-18 13:37:57,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 13:37:57,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 13:37:57,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 13:37:57,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 13:37:57,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 13:37:57,673 INFO L87 Difference]: Start difference. First operand has 128 states, 96 states have (on average 1.7083333333333333) internal successors, (164), 116 states have internal predecessors, (164), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 13:37:57,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 13:37:57,865 INFO L93 Difference]: Finished difference Result 251 states and 429 transitions. [2023-02-18 13:37:57,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 13:37:57,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2023-02-18 13:37:57,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 13:37:57,873 INFO L225 Difference]: With dead ends: 251 [2023-02-18 13:37:57,874 INFO L226 Difference]: Without dead ends: 120 [2023-02-18 13:37:57,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 13:37:57,882 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 38 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 13:37:57,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 181 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 13:37:57,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-02-18 13:37:57,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2023-02-18 13:37:57,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 90 states have (on average 1.2777777777777777) internal successors, (115), 108 states have internal predecessors, (115), 24 states have call successors, (24), 6 states have call predecessors, (24), 5 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-02-18 13:37:57,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 149 transitions. [2023-02-18 13:37:57,919 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 149 transitions. Word has length 37 [2023-02-18 13:37:57,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 13:37:57,919 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 149 transitions. [2023-02-18 13:37:57,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 13:37:57,920 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 149 transitions. [2023-02-18 13:37:57,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-02-18 13:37:57,921 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 13:37:57,921 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-02-18 13:37:57,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 13:37:57,922 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 13:37:57,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 13:37:57,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1675514385, now seen corresponding path program 1 times [2023-02-18 13:37:57,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 13:37:57,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155959814] [2023-02-18 13:37:57,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 13:37:57,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 13:37:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:37:58,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 13:37:58,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:37:58,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-02-18 13:37:58,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:37:58,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-02-18 13:37:58,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:37:58,498 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 13:37:58,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 13:37:58,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155959814] [2023-02-18 13:37:58,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155959814] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 13:37:58,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622847474] [2023-02-18 13:37:58,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 13:37:58,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 13:37:58,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 13:37:58,531 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) [2023-02-18 13:37:58,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 13:37:58,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:37:58,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-18 13:37:58,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 13:37:58,773 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 13:37:58,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 13:37:58,833 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 13:37:58,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1622847474] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 13:37:58,836 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 13:37:58,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 12 [2023-02-18 13:37:58,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845114841] [2023-02-18 13:37:58,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 13:37:58,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-18 13:37:58,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 13:37:58,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-18 13:37:58,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-02-18 13:37:58,840 INFO L87 Difference]: Start difference. First operand 120 states and 149 transitions. Second operand has 12 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 6 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-02-18 13:37:59,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 13:37:59,237 INFO L93 Difference]: Finished difference Result 250 states and 324 transitions. [2023-02-18 13:37:59,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-18 13:37:59,238 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 6 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 38 [2023-02-18 13:37:59,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 13:37:59,239 INFO L225 Difference]: With dead ends: 250 [2023-02-18 13:37:59,239 INFO L226 Difference]: Without dead ends: 133 [2023-02-18 13:37:59,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 75 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-02-18 13:37:59,241 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 52 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 13:37:59,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1037 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 13:37:59,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-02-18 13:37:59,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2023-02-18 13:37:59,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 98 states have (on average 1.2653061224489797) internal successors, (124), 116 states have internal predecessors, (124), 27 states have call successors, (27), 8 states have call predecessors, (27), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2023-02-18 13:37:59,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 164 transitions. [2023-02-18 13:37:59,252 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 164 transitions. Word has length 38 [2023-02-18 13:37:59,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 13:37:59,252 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 164 transitions. [2023-02-18 13:37:59,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 6 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-02-18 13:37:59,253 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 164 transitions. [2023-02-18 13:37:59,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-02-18 13:37:59,255 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 13:37:59,255 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 13:37:59,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-18 13:37:59,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 13:37:59,461 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 13:37:59,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 13:37:59,461 INFO L85 PathProgramCache]: Analyzing trace with hash 800158065, now seen corresponding path program 1 times [2023-02-18 13:37:59,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 13:37:59,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772797894] [2023-02-18 13:37:59,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 13:37:59,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 13:37:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:37:59,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 13:38:00,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:00,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-02-18 13:38:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:00,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 13:38:00,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:00,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-02-18 13:38:00,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:00,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-02-18 13:38:00,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:00,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-02-18 13:38:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:00,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-02-18 13:38:00,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:00,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-02-18 13:38:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:01,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 13:38:01,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:01,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-02-18 13:38:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:01,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-02-18 13:38:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:01,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-02-18 13:38:01,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:01,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-02-18 13:38:01,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:01,397 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 27 proven. 23 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-02-18 13:38:01,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 13:38:01,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772797894] [2023-02-18 13:38:01,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772797894] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 13:38:01,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809049033] [2023-02-18 13:38:01,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 13:38:01,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 13:38:01,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 13:38:01,412 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) [2023-02-18 13:38:01,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-18 13:38:01,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:01,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 45 conjunts are in the unsatisfiable core [2023-02-18 13:38:01,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 13:38:01,791 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 13:38:01,792 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 100 [2023-02-18 13:38:01,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2023-02-18 13:38:01,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2023-02-18 13:38:01,870 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 13:38:01,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 129 treesize of output 98 [2023-02-18 13:38:01,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27 [2023-02-18 13:38:01,882 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse7 (select |c_#memory_$Pointer$.base| |c_dll_insert_master_#in~dll#1.base|))) (let ((.cse1 (select .cse7 |c_dll_insert_master_#in~dll#1.offset|))) (let ((.cse0 (= .cse1 |c_dll_insert_master_#in~dll#1.base|))) (or (and (not (= 0 |c_dll_insert_master_#in~dll#1.base|)) .cse0) (let ((.cse5 (not .cse0)) (.cse3 (select |c_#memory_$Pointer$.base| .cse1))) (and (not (= |c_dll_insert_master_#in~dll#1.base| .cse1)) (or (and (exists ((v_DerPreprocessor_1 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (let ((.cse2 (select (store (store (store (store |c_#memory_$Pointer$.base| .cse1 v_DerPreprocessor_1) |c_dll_insert_master_#in~dll#1.base| v_DerPreprocessor_2) .cse1 v_DerPreprocessor_1) |c_dll_insert_master_#in~dll#1.base| v_DerPreprocessor_2) .cse1))) (and (= (select v_DerPreprocessor_2 |c_dll_insert_master_#in~dll#1.offset|) .cse1) (= .cse2 v_DerPreprocessor_2) (= v_DerPreprocessor_1 .cse2)))) .cse0) (and (or (and (exists ((v_DerPreprocessor_1 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (and (= (select v_DerPreprocessor_2 |c_dll_insert_master_#in~dll#1.offset|) .cse1) (= v_DerPreprocessor_1 (select (store (store (store (store |c_#memory_$Pointer$.base| .cse1 v_DerPreprocessor_1) |c_dll_insert_master_#in~dll#1.base| v_DerPreprocessor_2) .cse1 v_DerPreprocessor_1) |c_dll_insert_master_#in~dll#1.base| v_DerPreprocessor_2) .cse1)))) .cse0) (exists ((v_DerPreprocessor_2 (Array Int Int))) (and (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse4 (select (store (store (store (store |c_#memory_$Pointer$.base| .cse1 v_DerPreprocessor_1) |c_dll_insert_master_#in~dll#1.base| v_DerPreprocessor_2) .cse1 v_DerPreprocessor_1) |c_dll_insert_master_#in~dll#1.base| v_DerPreprocessor_2) .cse1))) (and (= .cse3 .cse4) (= v_DerPreprocessor_1 .cse4)))) (= (select v_DerPreprocessor_2 |c_dll_insert_master_#in~dll#1.offset|) .cse1)))) .cse5) (exists ((v_DerPreprocessor_2 (Array Int Int))) (and (= (select v_DerPreprocessor_2 |c_dll_insert_master_#in~dll#1.offset|) .cse1) (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse6 (select (store (store (store (store |c_#memory_$Pointer$.base| .cse1 v_DerPreprocessor_1) |c_dll_insert_master_#in~dll#1.base| v_DerPreprocessor_2) .cse1 v_DerPreprocessor_1) |c_dll_insert_master_#in~dll#1.base| v_DerPreprocessor_2) .cse1))) (and (= .cse3 .cse6) (= .cse6 v_DerPreprocessor_2) (= v_DerPreprocessor_1 .cse6))))))) (or .cse5 (= .cse3 .cse7)) (not (= 0 .cse1)))))))) is different from true [2023-02-18 13:38:02,098 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 13:38:02,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 315 treesize of output 240 [2023-02-18 13:38:02,110 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 13:38:02,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-18 13:38:02,117 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 13:38:02,120 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 13:38:02,123 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 13:38:02,125 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 13:38:02,126 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 13:38:02,127 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 13:38:02,128 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 13:38:02,129 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 13:38:02,130 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 13:38:02,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-02-18 13:38:02,151 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 33 proven. 5 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-02-18 13:38:02,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 13:38:02,195 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 13:38:02,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 218 treesize of output 215 [2023-02-18 13:38:02,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 250 treesize of output 242 [2023-02-18 13:38:02,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 238 [2023-02-18 13:38:02,209 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-18 13:38:02,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-02-18 13:38:02,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-02-18 13:38:02,217 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-18 13:38:02,219 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-18 13:38:02,220 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-18 13:38:02,221 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-18 13:38:02,223 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-18 13:38:02,224 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-18 13:38:02,226 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-18 13:38:02,227 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-18 13:38:02,229 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-18 13:38:02,230 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-18 13:38:02,231 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-18 13:38:02,234 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-18 13:38:02,278 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 13:38:02,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 218 treesize of output 215 [2023-02-18 13:38:02,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 250 treesize of output 242 [2023-02-18 13:38:02,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 238 [2023-02-18 13:38:02,291 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-18 13:38:02,292 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-18 13:38:02,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-02-18 13:38:02,297 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-18 13:38:02,298 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-18 13:38:02,300 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-18 13:38:02,301 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-18 13:38:02,303 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-18 13:38:02,304 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-18 13:38:02,306 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-18 13:38:02,308 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-18 13:38:02,310 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-18 13:38:02,312 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-18 13:38:02,314 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-18 13:38:02,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-02-18 13:38:02,353 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-02-18 13:38:02,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809049033] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 13:38:02,353 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 13:38:02,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 16, 15] total 29 [2023-02-18 13:38:02,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062482967] [2023-02-18 13:38:02,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 13:38:02,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-02-18 13:38:02,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 13:38:02,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-02-18 13:38:02,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=677, Unknown=20, NotChecked=52, Total=812 [2023-02-18 13:38:02,356 INFO L87 Difference]: Start difference. First operand 133 states and 164 transitions. Second operand has 29 states, 25 states have (on average 2.84) internal successors, (71), 25 states have internal predecessors, (71), 11 states have call successors, (22), 4 states have call predecessors, (22), 9 states have return successors, (18), 12 states have call predecessors, (18), 9 states have call successors, (18) [2023-02-18 13:38:03,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 13:38:03,588 INFO L93 Difference]: Finished difference Result 334 states and 417 transitions. [2023-02-18 13:38:03,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-02-18 13:38:03,590 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 25 states have (on average 2.84) internal successors, (71), 25 states have internal predecessors, (71), 11 states have call successors, (22), 4 states have call predecessors, (22), 9 states have return successors, (18), 12 states have call predecessors, (18), 9 states have call successors, (18) Word has length 110 [2023-02-18 13:38:03,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 13:38:03,591 INFO L225 Difference]: With dead ends: 334 [2023-02-18 13:38:03,591 INFO L226 Difference]: Without dead ends: 205 [2023-02-18 13:38:03,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 235 SyntacticMatches, 5 SemanticMatches, 47 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=188, Invalid=2045, Unknown=27, NotChecked=92, Total=2352 [2023-02-18 13:38:03,593 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 276 mSDsluCounter, 1653 mSDsCounter, 0 mSdLazyCounter, 1796 mSolverCounterSat, 61 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 1757 SdHoareTripleChecker+Invalid, 2096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1796 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 225 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-02-18 13:38:03,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 1757 Invalid, 2096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1796 Invalid, 14 Unknown, 225 Unchecked, 0.9s Time] [2023-02-18 13:38:03,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-02-18 13:38:03,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 166. [2023-02-18 13:38:03,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 126 states have (on average 1.253968253968254) internal successors, (158), 144 states have internal predecessors, (158), 29 states have call successors, (29), 10 states have call predecessors, (29), 10 states have return successors, (17), 13 states have call predecessors, (17), 15 states have call successors, (17) [2023-02-18 13:38:03,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 204 transitions. [2023-02-18 13:38:03,618 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 204 transitions. Word has length 110 [2023-02-18 13:38:03,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 13:38:03,620 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 204 transitions. [2023-02-18 13:38:03,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 25 states have (on average 2.84) internal successors, (71), 25 states have internal predecessors, (71), 11 states have call successors, (22), 4 states have call predecessors, (22), 9 states have return successors, (18), 12 states have call predecessors, (18), 9 states have call successors, (18) [2023-02-18 13:38:03,620 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 204 transitions. [2023-02-18 13:38:03,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-02-18 13:38:03,624 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 13:38:03,624 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 13:38:03,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-18 13:38:03,830 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,SelfDestructingSolverStorable2 [2023-02-18 13:38:03,830 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 13:38:03,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 13:38:03,831 INFO L85 PathProgramCache]: Analyzing trace with hash 614553281, now seen corresponding path program 1 times [2023-02-18 13:38:03,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 13:38:03,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107743000] [2023-02-18 13:38:03,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 13:38:03,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 13:38:03,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:04,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 13:38:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:04,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-02-18 13:38:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:05,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 13:38:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:05,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-02-18 13:38:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:05,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-02-18 13:38:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:05,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-02-18 13:38:05,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:05,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-02-18 13:38:05,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:05,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-02-18 13:38:05,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:05,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 13:38:05,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:05,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-02-18 13:38:05,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:05,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-02-18 13:38:05,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:05,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-02-18 13:38:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:05,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-02-18 13:38:05,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:05,437 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 15 proven. 23 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-02-18 13:38:05,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 13:38:05,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107743000] [2023-02-18 13:38:05,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107743000] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 13:38:05,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312733815] [2023-02-18 13:38:05,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 13:38:05,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 13:38:05,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 13:38:05,439 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) [2023-02-18 13:38:05,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-18 13:38:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:05,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 988 conjuncts, 57 conjunts are in the unsatisfiable core [2023-02-18 13:38:05,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 13:38:05,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-18 13:38:05,842 INFO L350 Elim1Store]: Elim1 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 8 treesize of output 4 [2023-02-18 13:38:05,905 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2858 (Array Int Int)) (|##fun~$Pointer$~TO~VOID_dll_insert_slave_~item~0#1.base| Int)) (and (= |c_##fun~$Pointer$~TO~VOID_dll_insert_slave_~next~0#1.base| (select (select (store |c_old(#memory_$Pointer$.base)| |##fun~$Pointer$~TO~VOID_dll_insert_slave_~item~0#1.base| v_ArrVal_2858) |c_##fun~$Pointer$~TO~VOID_#in~10#1.base|) |c_##fun~$Pointer$~TO~VOID_#in~10#1.offset|)) (< |##fun~$Pointer$~TO~VOID_dll_insert_slave_~item~0#1.base| |c_#StackHeapBarrier|))) is different from true [2023-02-18 13:38:05,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 13:38:05,942 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 80 proven. 7 refuted. 0 times theorem prover too weak. 46 trivial. 1 not checked. [2023-02-18 13:38:05,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 13:38:06,012 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_##fun~$Pointer$~TO~VOID_dll_insert_slave_~item~0#1.base_180| Int) (v_ArrVal_2938 (Array Int Int))) (or (not (< |v_##fun~$Pointer$~TO~VOID_dll_insert_slave_~item~0#1.base_180| |c_#StackHeapBarrier|)) (not (= 0 (select (select (store |c_#memory_$Pointer$.base| |v_##fun~$Pointer$~TO~VOID_dll_insert_slave_~item~0#1.base_180| v_ArrVal_2938) |c_dll_create_generic_~#dll~0.base|) |c_dll_create_generic_~#dll~0.offset|))))) is different from false [2023-02-18 13:38:06,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312733815] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 13:38:06,013 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 13:38:06,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15] total 24 [2023-02-18 13:38:06,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266609646] [2023-02-18 13:38:06,014 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 13:38:06,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-18 13:38:06,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 13:38:06,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-18 13:38:06,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=450, Unknown=7, NotChecked=86, Total=600 [2023-02-18 13:38:06,016 INFO L87 Difference]: Start difference. First operand 166 states and 204 transitions. Second operand has 24 states, 21 states have (on average 3.619047619047619) internal successors, (76), 21 states have internal predecessors, (76), 8 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (17), 5 states have call predecessors, (17), 8 states have call successors, (17) [2023-02-18 13:38:07,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 13:38:07,180 INFO L93 Difference]: Finished difference Result 342 states and 424 transitions. [2023-02-18 13:38:07,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-02-18 13:38:07,181 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 3.619047619047619) internal successors, (76), 21 states have internal predecessors, (76), 8 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (17), 5 states have call predecessors, (17), 8 states have call successors, (17) Word has length 113 [2023-02-18 13:38:07,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 13:38:07,182 INFO L225 Difference]: With dead ends: 342 [2023-02-18 13:38:07,182 INFO L226 Difference]: Without dead ends: 180 [2023-02-18 13:38:07,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=237, Invalid=1646, Unknown=17, NotChecked=170, Total=2070 [2023-02-18 13:38:07,183 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 111 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 1611 mSolverCounterSat, 27 mSolverCounterUnsat, 22 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 1825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1611 IncrementalHoareTripleChecker+Invalid, 22 IncrementalHoareTripleChecker+Unknown, 165 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-02-18 13:38:07,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 1344 Invalid, 1825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1611 Invalid, 22 Unknown, 165 Unchecked, 0.9s Time] [2023-02-18 13:38:07,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-02-18 13:38:07,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 176. [2023-02-18 13:38:07,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 135 states have (on average 1.237037037037037) internal successors, (167), 153 states have internal predecessors, (167), 29 states have call successors, (29), 11 states have call predecessors, (29), 11 states have return successors, (15), 13 states have call predecessors, (15), 15 states have call successors, (15) [2023-02-18 13:38:07,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 211 transitions. [2023-02-18 13:38:07,198 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 211 transitions. Word has length 113 [2023-02-18 13:38:07,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 13:38:07,198 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 211 transitions. [2023-02-18 13:38:07,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 3.619047619047619) internal successors, (76), 21 states have internal predecessors, (76), 8 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (17), 5 states have call predecessors, (17), 8 states have call successors, (17) [2023-02-18 13:38:07,199 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 211 transitions. [2023-02-18 13:38:07,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-02-18 13:38:07,205 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 13:38:07,205 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 13:38:07,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-18 13:38:07,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 13:38:07,412 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 13:38:07,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 13:38:07,413 INFO L85 PathProgramCache]: Analyzing trace with hash 522299907, now seen corresponding path program 1 times [2023-02-18 13:38:07,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 13:38:07,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297893341] [2023-02-18 13:38:07,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 13:38:07,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 13:38:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:10,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 13:38:10,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:12,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-02-18 13:38:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:12,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 13:38:12,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:12,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-02-18 13:38:12,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:12,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-02-18 13:38:12,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:12,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-02-18 13:38:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:12,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-02-18 13:38:12,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:12,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-02-18 13:38:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:13,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 13:38:13,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:14,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-02-18 13:38:14,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 13:38:14,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-02-18 13:38:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat