./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.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 7f108eec0e6f75d7c7724c96156fb3bec5ecbcd0f2a8def1b3ebffa34d9deb6c --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 12:19:53,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 12:19:53,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 12:19:53,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 12:19:53,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 12:19:53,730 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 12:19:53,731 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 12:19:53,734 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 12:19:53,736 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 12:19:53,736 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 12:19:53,737 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 12:19:53,737 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 12:19:53,738 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 12:19:53,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 12:19:53,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 12:19:53,740 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 12:19:53,740 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 12:19:53,741 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 12:19:53,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 12:19:53,743 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 12:19:53,744 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 12:19:53,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 12:19:53,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 12:19:53,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 12:19:53,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 12:19:53,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 12:19:53,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 12:19:53,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 12:19:53,754 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 12:19:53,754 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 12:19:53,755 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 12:19:53,755 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 12:19:53,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 12:19:53,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 12:19:53,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 12:19:53,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 12:19:53,757 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 12:19:53,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 12:19:53,758 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 12:19:53,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 12:19:53,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 12:19:53,764 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 12:19:53,765 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 12:19:53,790 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 12:19:53,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 12:19:53,791 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 12:19:53,791 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 12:19:53,792 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 12:19:53,792 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 12:19:53,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 12:19:53,792 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 12:19:53,793 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 12:19:53,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 12:19:53,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 12:19:53,793 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 12:19:53,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 12:19:53,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 12:19:53,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 12:19:53,794 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 12:19:53,794 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 12:19:53,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 12:19:53,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 12:19:53,795 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 12:19:53,795 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 12:19:53,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:19:53,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 12:19:53,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 12:19:53,795 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 12:19:53,795 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 12:19:53,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 12:19:53,796 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 12:19:53,796 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 12:19:53,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 12:19:53,796 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f108eec0e6f75d7c7724c96156fb3bec5ecbcd0f2a8def1b3ebffa34d9deb6c [2022-07-12 12:19:53,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 12:19:53,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 12:19:53,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 12:19:53,985 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 12:19:53,985 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 12:19:53,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i [2022-07-12 12:19:54,027 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a72ac5323/e345920296904fc8956f2ae7b9c8364f/FLAG14a0e8972 [2022-07-12 12:19:54,529 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 12:19:54,529 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i [2022-07-12 12:19:54,575 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a72ac5323/e345920296904fc8956f2ae7b9c8364f/FLAG14a0e8972 [2022-07-12 12:19:54,759 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a72ac5323/e345920296904fc8956f2ae7b9c8364f [2022-07-12 12:19:54,761 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 12:19:54,762 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 12:19:54,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 12:19:54,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 12:19:54,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 12:19:54,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:19:54" (1/1) ... [2022-07-12 12:19:54,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2132b58a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:19:54, skipping insertion in model container [2022-07-12 12:19:54,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:19:54" (1/1) ... [2022-07-12 12:19:54,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 12:19:54,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:19:55,341 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i[114617,114630] [2022-07-12 12:19:55,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:19:55,765 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 12:19:55,847 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i[114617,114630] [2022-07-12 12:19:55,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:19:56,018 INFO L208 MainTranslator]: Completed translation [2022-07-12 12:19:56,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:19:56 WrapperNode [2022-07-12 12:19:56,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 12:19:56,021 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 12:19:56,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 12:19:56,021 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 12:19:56,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:19:56" (1/1) ... [2022-07-12 12:19:56,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:19:56" (1/1) ... [2022-07-12 12:19:56,187 INFO L137 Inliner]: procedures = 222, calls = 1486, calls flagged for inlining = 101, calls inlined = 96, statements flattened = 3995 [2022-07-12 12:19:56,188 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 12:19:56,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 12:19:56,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 12:19:56,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 12:19:56,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:19:56" (1/1) ... [2022-07-12 12:19:56,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:19:56" (1/1) ... [2022-07-12 12:19:56,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:19:56" (1/1) ... [2022-07-12 12:19:56,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:19:56" (1/1) ... [2022-07-12 12:19:56,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:19:56" (1/1) ... [2022-07-12 12:19:56,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:19:56" (1/1) ... [2022-07-12 12:19:56,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:19:56" (1/1) ... [2022-07-12 12:19:56,371 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 12:19:56,372 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 12:19:56,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 12:19:56,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 12:19:56,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:19:56" (1/1) ... [2022-07-12 12:19:56,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:19:56,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:19:56,404 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 12:19:56,408 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 12:19:56,432 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-12 12:19:56,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-12 12:19:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_18 [2022-07-12 12:19:56,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_18 [2022-07-12 12:19:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 12:19:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 12:19:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 12:19:56,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 12:19:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-07-12 12:19:56,433 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-07-12 12:19:56,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-07-12 12:19:56,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-07-12 12:19:56,434 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_handle_firmware_update [2022-07-12 12:19:56,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_handle_firmware_update [2022-07-12 12:19:56,434 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2022-07-12 12:19:56,434 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2022-07-12 12:19:56,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 12:19:56,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 12:19:56,435 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-07-12 12:19:56,435 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-07-12 12:19:56,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-07-12 12:19:56,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-07-12 12:19:56,435 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-07-12 12:19:56,435 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-07-12 12:19:56,435 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_get_info [2022-07-12 12:19:56,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_get_info [2022-07-12 12:19:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2022-07-12 12:19:56,436 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2022-07-12 12:19:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 12:19:56,436 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 12:19:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 12:19:56,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 12:19:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 12:19:56,437 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 12:19:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 12:19:56,437 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 12:19:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-07-12 12:19:56,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-07-12 12:19:56,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 12:19:56,438 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2022-07-12 12:19:56,438 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2022-07-12 12:19:56,438 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-12 12:19:56,438 INFO L130 BoogieDeclarations]: Found specification of procedure ihex_next_binrec [2022-07-12 12:19:56,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ihex_next_binrec [2022-07-12 12:19:56,439 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-07-12 12:19:56,439 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-07-12 12:19:56,439 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_buffers_free [2022-07-12 12:19:56,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_buffers_free [2022-07-12 12:19:56,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 12:19:56,439 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2022-07-12 12:19:56,440 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2022-07-12 12:19:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-07-12 12:19:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2022-07-12 12:19:56,440 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2022-07-12 12:19:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_attribute_show [2022-07-12 12:19:56,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_attribute_show [2022-07-12 12:19:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-07-12 12:19:56,441 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-07-12 12:19:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 12:19:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 12:19:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-12 12:19:56,442 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-12 12:19:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-12 12:19:56,443 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-12 12:19:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-12 12:19:56,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-12 12:19:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-12 12:19:56,443 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-12 12:19:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure __ims_pcu_execute_command [2022-07-12 12:19:56,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __ims_pcu_execute_command [2022-07-12 12:19:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-12 12:19:56,444 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-12 12:19:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure __ims_pcu_execute_bl_command [2022-07-12 12:19:56,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __ims_pcu_execute_bl_command [2022-07-12 12:19:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2022-07-12 12:19:56,445 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2022-07-12 12:19:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-12 12:19:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-12 12:19:56,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-12 12:19:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2022-07-12 12:19:56,445 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2022-07-12 12:19:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-12 12:19:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_8 [2022-07-12 12:19:56,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_8 [2022-07-12 12:19:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2022-07-12 12:19:56,446 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2022-07-12 12:19:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 12:19:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-07-12 12:19:56,446 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-07-12 12:19:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-07-12 12:19:56,447 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-07-12 12:19:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_destroy_backlight [2022-07-12 12:19:56,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_destroy_backlight [2022-07-12 12:19:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_attribute_store [2022-07-12 12:19:56,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_attribute_store [2022-07-12 12:19:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 12:19:56,448 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 12:19:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-12 12:19:56,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-12 12:19:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_resume [2022-07-12 12:19:56,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_resume [2022-07-12 12:19:56,450 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-07-12 12:19:56,450 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-07-12 12:19:56,450 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_destroy_buttons [2022-07-12 12:19:56,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_destroy_buttons [2022-07-12 12:19:56,450 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 12:19:56,450 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 12:19:56,450 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_start_io [2022-07-12 12:19:56,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_start_io [2022-07-12 12:19:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-07-12 12:19:56,451 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-07-12 12:19:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 12:19:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2022-07-12 12:19:56,451 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2022-07-12 12:19:56,452 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2022-07-12 12:19:56,452 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2022-07-12 12:19:56,452 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_send_cmd_chunk [2022-07-12 12:19:56,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_send_cmd_chunk [2022-07-12 12:19:56,453 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoint [2022-07-12 12:19:56,454 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoint [2022-07-12 12:19:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 12:19:56,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 12:19:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 12:19:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_2 [2022-07-12 12:19:56,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_2 [2022-07-12 12:19:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2022-07-12 12:19:56,457 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2022-07-12 12:19:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_line_setup [2022-07-12 12:19:56,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_line_setup [2022-07-12 12:19:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-07-12 12:19:56,460 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-07-12 12:19:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 12:19:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_stop_io [2022-07-12 12:19:56,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_stop_io [2022-07-12 12:19:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 12:19:56,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 12:19:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_byte_needs_escape [2022-07-12 12:19:56,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_byte_needs_escape [2022-07-12 12:19:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 12:19:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2022-07-12 12:19:56,462 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2022-07-12 12:19:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 12:19:56,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 12:19:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2022-07-12 12:19:56,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2022-07-12 12:19:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-07-12 12:19:56,463 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-07-12 12:19:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-07-12 12:19:56,463 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-07-12 12:19:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure ihex_validate_fw [2022-07-12 12:19:56,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ihex_validate_fw [2022-07-12 12:19:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_irq [2022-07-12 12:19:56,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_irq [2022-07-12 12:19:56,464 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2022-07-12 12:19:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2022-07-12 12:19:56,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-07-12 12:19:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-07-12 12:19:56,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 12:19:56,464 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_disconnect [2022-07-12 12:19:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_disconnect [2022-07-12 12:19:56,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 12:19:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 12:19:57,003 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 12:19:57,005 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 12:19:57,145 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 12:19:57,931 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-07-12 12:19:58,741 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 12:19:58,750 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 12:19:58,750 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 12:19:58,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:19:58 BoogieIcfgContainer [2022-07-12 12:19:58,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 12:19:58,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 12:19:58,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 12:19:58,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 12:19:58,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 12:19:54" (1/3) ... [2022-07-12 12:19:58,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@669d3170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:19:58, skipping insertion in model container [2022-07-12 12:19:58,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:19:56" (2/3) ... [2022-07-12 12:19:58,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@669d3170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:19:58, skipping insertion in model container [2022-07-12 12:19:58,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:19:58" (3/3) ... [2022-07-12 12:19:58,759 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i [2022-07-12 12:19:58,767 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 12:19:58,768 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 12:19:58,825 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 12:19:58,830 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@573637af, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6171722f [2022-07-12 12:19:58,831 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 12:19:58,841 INFO L276 IsEmpty]: Start isEmpty. Operand has 1168 states, 813 states have (on average 1.3444034440344403) internal successors, (1093), 846 states have internal predecessors, (1093), 283 states have call successors, (283), 72 states have call predecessors, (283), 70 states have return successors, (268), 267 states have call predecessors, (268), 268 states have call successors, (268) [2022-07-12 12:19:58,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-07-12 12:19:58,866 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:19:58,866 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:19:58,867 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:19:58,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:19:58,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1340860104, now seen corresponding path program 1 times [2022-07-12 12:19:58,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:19:58,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947309990] [2022-07-12 12:19:58,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:19:58,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:19:59,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:19:59,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:19:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:19:59,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:19:59,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:19:59,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:19:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:19:59,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:19:59,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:19:59,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:19:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:19:59,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:19:59,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:19:59,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:19:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:19:59,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:19:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:19:59,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 12:19:59,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:19:59,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 12:19:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:19:59,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 12:19:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:19:59,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 12:19:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:19:59,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:19:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:19:59,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 12:19:59,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:19:59,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 12:19:59,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:19:59,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 12:19:59,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:19:59,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 12:19:59,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:19:59,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 12:19:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:19:59,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 12:19:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:19:59,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 12:19:59,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:19:59,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 12:19:59,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:19:59,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 12:19:59,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:19:59,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 12:19:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:19:59,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 12:19:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:19:59,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 12:19:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:19:59,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2022-07-12 12:19:59,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:19:59,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947309990] [2022-07-12 12:19:59,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947309990] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:19:59,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:19:59,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:19:59,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768216870] [2022-07-12 12:19:59,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:19:59,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:19:59,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:19:59,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:19:59,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:19:59,662 INFO L87 Difference]: Start difference. First operand has 1168 states, 813 states have (on average 1.3444034440344403) internal successors, (1093), 846 states have internal predecessors, (1093), 283 states have call successors, (283), 72 states have call predecessors, (283), 70 states have return successors, (268), 267 states have call predecessors, (268), 268 states have call successors, (268) Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-07-12 12:20:03,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:20:03,052 INFO L93 Difference]: Finished difference Result 3639 states and 5331 transitions. [2022-07-12 12:20:03,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 12:20:03,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 174 [2022-07-12 12:20:03,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:20:03,085 INFO L225 Difference]: With dead ends: 3639 [2022-07-12 12:20:03,086 INFO L226 Difference]: Without dead ends: 2436 [2022-07-12 12:20:03,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 12:20:03,100 INFO L413 NwaCegarLoop]: 1767 mSDtfsCounter, 2411 mSDsluCounter, 2731 mSDsCounter, 0 mSdLazyCounter, 1917 mSolverCounterSat, 1434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2581 SdHoareTripleChecker+Valid, 4498 SdHoareTripleChecker+Invalid, 3351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1434 IncrementalHoareTripleChecker+Valid, 1917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:20:03,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2581 Valid, 4498 Invalid, 3351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1434 Valid, 1917 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-12 12:20:03,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2436 states. [2022-07-12 12:20:03,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2436 to 2184. [2022-07-12 12:20:03,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2184 states, 1552 states have (on average 1.3324742268041236) internal successors, (2068), 1580 states have internal predecessors, (2068), 493 states have call successors, (493), 139 states have call predecessors, (493), 138 states have return successors, (488), 486 states have call predecessors, (488), 488 states have call successors, (488) [2022-07-12 12:20:03,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2184 states to 2184 states and 3049 transitions. [2022-07-12 12:20:03,292 INFO L78 Accepts]: Start accepts. Automaton has 2184 states and 3049 transitions. Word has length 174 [2022-07-12 12:20:03,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:20:03,294 INFO L495 AbstractCegarLoop]: Abstraction has 2184 states and 3049 transitions. [2022-07-12 12:20:03,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-07-12 12:20:03,294 INFO L276 IsEmpty]: Start isEmpty. Operand 2184 states and 3049 transitions. [2022-07-12 12:20:03,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-12 12:20:03,299 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:20:03,299 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:20:03,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 12:20:03,300 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:20:03,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:20:03,300 INFO L85 PathProgramCache]: Analyzing trace with hash -741605332, now seen corresponding path program 1 times [2022-07-12 12:20:03,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:20:03,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361391446] [2022-07-12 12:20:03,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:20:03,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:20:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:03,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:20:03,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:03,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:20:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:03,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:20:03,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:03,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:20:03,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:03,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:20:03,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:03,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:20:03,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:03,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:20:03,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:03,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:20:03,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:03,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 12:20:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:03,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 12:20:03,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:03,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 12:20:03,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:03,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 12:20:03,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:03,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:20:03,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:03,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 12:20:03,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:03,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 12:20:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:03,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 12:20:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:03,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 12:20:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:03,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 12:20:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:03,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 12:20:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:03,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 12:20:03,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:03,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 12:20:03,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:03,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 12:20:03,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:03,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 12:20:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:03,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 12:20:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:03,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 12:20:03,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:03,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-12 12:20:03,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:03,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2022-07-12 12:20:03,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:20:03,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361391446] [2022-07-12 12:20:03,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361391446] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:20:03,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:20:03,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:20:03,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954636528] [2022-07-12 12:20:03,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:20:03,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:20:03,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:20:03,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:20:03,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:20:03,740 INFO L87 Difference]: Start difference. First operand 2184 states and 3049 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-12 12:20:07,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:20:07,564 INFO L93 Difference]: Finished difference Result 6949 states and 10117 transitions. [2022-07-12 12:20:07,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 12:20:07,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 184 [2022-07-12 12:20:07,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:20:07,615 INFO L225 Difference]: With dead ends: 6949 [2022-07-12 12:20:07,615 INFO L226 Difference]: Without dead ends: 4818 [2022-07-12 12:20:07,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 12:20:07,623 INFO L413 NwaCegarLoop]: 1958 mSDtfsCounter, 2451 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 2023 mSolverCounterSat, 1355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2617 SdHoareTripleChecker+Valid, 4784 SdHoareTripleChecker+Invalid, 3378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1355 IncrementalHoareTripleChecker+Valid, 2023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-12 12:20:07,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2617 Valid, 4784 Invalid, 3378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1355 Valid, 2023 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-12 12:20:07,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4818 states. [2022-07-12 12:20:07,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4818 to 4364. [2022-07-12 12:20:07,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4364 states, 3113 states have (on average 1.332155477031802) internal successors, (4147), 3165 states have internal predecessors, (4147), 962 states have call successors, (962), 277 states have call predecessors, (962), 288 states have return successors, (1029), 963 states have call predecessors, (1029), 957 states have call successors, (1029) [2022-07-12 12:20:07,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4364 states to 4364 states and 6138 transitions. [2022-07-12 12:20:07,748 INFO L78 Accepts]: Start accepts. Automaton has 4364 states and 6138 transitions. Word has length 184 [2022-07-12 12:20:07,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:20:07,749 INFO L495 AbstractCegarLoop]: Abstraction has 4364 states and 6138 transitions. [2022-07-12 12:20:07,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-12 12:20:07,749 INFO L276 IsEmpty]: Start isEmpty. Operand 4364 states and 6138 transitions. [2022-07-12 12:20:07,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-07-12 12:20:07,753 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:20:07,753 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:20:07,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 12:20:07,753 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:20:07,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:20:07,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1515497706, now seen corresponding path program 1 times [2022-07-12 12:20:07,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:20:07,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875455509] [2022-07-12 12:20:07,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:20:07,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:20:07,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:07,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:20:07,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:07,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:20:07,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:07,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:20:07,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:07,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:20:07,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:07,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:20:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:07,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:20:07,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:07,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:20:07,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:07,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:20:07,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:07,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 12:20:07,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:07,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 12:20:07,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:07,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 12:20:07,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:07,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 12:20:07,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:07,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:20:07,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:07,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 12:20:07,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:07,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 12:20:07,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:07,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 12:20:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:08,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 12:20:08,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:08,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 12:20:08,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:08,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 12:20:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:08,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 12:20:08,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:08,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 12:20:08,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:08,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 12:20:08,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:08,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 12:20:08,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:08,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 12:20:08,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:08,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 12:20:08,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:08,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-12 12:20:08,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:08,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2022-07-12 12:20:08,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:20:08,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875455509] [2022-07-12 12:20:08,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875455509] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:20:08,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:20:08,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:20:08,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894412996] [2022-07-12 12:20:08,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:20:08,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:20:08,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:20:08,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:20:08,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:20:08,056 INFO L87 Difference]: Start difference. First operand 4364 states and 6138 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-12 12:20:09,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:20:09,980 INFO L93 Difference]: Finished difference Result 4810 states and 7042 transitions. [2022-07-12 12:20:09,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:20:09,981 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 185 [2022-07-12 12:20:09,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:20:10,004 INFO L225 Difference]: With dead ends: 4810 [2022-07-12 12:20:10,004 INFO L226 Difference]: Without dead ends: 4807 [2022-07-12 12:20:10,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:20:10,013 INFO L413 NwaCegarLoop]: 1513 mSDtfsCounter, 1928 mSDsluCounter, 1451 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 796 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2105 SdHoareTripleChecker+Valid, 2964 SdHoareTripleChecker+Invalid, 1750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 796 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-12 12:20:10,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2105 Valid, 2964 Invalid, 1750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [796 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-12 12:20:10,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4807 states. [2022-07-12 12:20:10,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4807 to 4363. [2022-07-12 12:20:10,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4363 states, 3113 states have (on average 1.3318342434950208) internal successors, (4146), 3164 states have internal predecessors, (4146), 961 states have call successors, (961), 277 states have call predecessors, (961), 288 states have return successors, (1029), 963 states have call predecessors, (1029), 957 states have call successors, (1029) [2022-07-12 12:20:10,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4363 states to 4363 states and 6136 transitions. [2022-07-12 12:20:10,157 INFO L78 Accepts]: Start accepts. Automaton has 4363 states and 6136 transitions. Word has length 185 [2022-07-12 12:20:10,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:20:10,159 INFO L495 AbstractCegarLoop]: Abstraction has 4363 states and 6136 transitions. [2022-07-12 12:20:10,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-12 12:20:10,159 INFO L276 IsEmpty]: Start isEmpty. Operand 4363 states and 6136 transitions. [2022-07-12 12:20:10,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-07-12 12:20:10,161 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:20:10,161 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:20:10,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 12:20:10,162 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:20:10,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:20:10,162 INFO L85 PathProgramCache]: Analyzing trace with hash 263647343, now seen corresponding path program 1 times [2022-07-12 12:20:10,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:20:10,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052518707] [2022-07-12 12:20:10,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:20:10,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:20:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:10,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:20:10,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:10,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:20:10,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:10,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:20:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:10,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:20:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:10,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:20:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:10,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:20:10,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:10,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:20:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:10,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:20:10,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:10,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 12:20:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:10,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 12:20:10,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:10,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 12:20:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:10,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 12:20:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:10,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:20:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:10,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 12:20:10,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:10,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 12:20:10,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:10,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 12:20:10,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:10,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 12:20:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:10,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 12:20:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:10,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 12:20:10,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:10,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 12:20:10,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:10,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 12:20:10,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:10,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 12:20:10,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:10,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 12:20:10,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:10,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 12:20:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:10,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 12:20:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:10,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-12 12:20:10,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:10,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2022-07-12 12:20:10,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:20:10,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052518707] [2022-07-12 12:20:10,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052518707] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:20:10,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:20:10,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:20:10,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006000294] [2022-07-12 12:20:10,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:20:10,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:20:10,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:20:10,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:20:10,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:20:10,469 INFO L87 Difference]: Start difference. First operand 4363 states and 6136 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-12 12:20:12,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:20:12,410 INFO L93 Difference]: Finished difference Result 4809 states and 7040 transitions. [2022-07-12 12:20:12,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:20:12,411 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 186 [2022-07-12 12:20:12,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:20:12,430 INFO L225 Difference]: With dead ends: 4809 [2022-07-12 12:20:12,431 INFO L226 Difference]: Without dead ends: 4806 [2022-07-12 12:20:12,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:20:12,433 INFO L413 NwaCegarLoop]: 1502 mSDtfsCounter, 1928 mSDsluCounter, 1449 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 803 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2105 SdHoareTripleChecker+Valid, 2951 SdHoareTripleChecker+Invalid, 1758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 803 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-12 12:20:12,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2105 Valid, 2951 Invalid, 1758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [803 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-12 12:20:12,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4806 states. [2022-07-12 12:20:12,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4806 to 4362. [2022-07-12 12:20:12,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4362 states, 3113 states have (on average 1.3315130099582397) internal successors, (4145), 3163 states have internal predecessors, (4145), 960 states have call successors, (960), 277 states have call predecessors, (960), 288 states have return successors, (1029), 963 states have call predecessors, (1029), 957 states have call successors, (1029) [2022-07-12 12:20:12,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4362 states to 4362 states and 6134 transitions. [2022-07-12 12:20:12,592 INFO L78 Accepts]: Start accepts. Automaton has 4362 states and 6134 transitions. Word has length 186 [2022-07-12 12:20:12,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:20:12,592 INFO L495 AbstractCegarLoop]: Abstraction has 4362 states and 6134 transitions. [2022-07-12 12:20:12,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-12 12:20:12,593 INFO L276 IsEmpty]: Start isEmpty. Operand 4362 states and 6134 transitions. [2022-07-12 12:20:12,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-12 12:20:12,596 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:20:12,596 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:20:12,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 12:20:12,596 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:20:12,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:20:12,597 INFO L85 PathProgramCache]: Analyzing trace with hash -417426119, now seen corresponding path program 1 times [2022-07-12 12:20:12,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:20:12,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579586668] [2022-07-12 12:20:12,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:20:12,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:20:12,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:12,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:20:12,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:12,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:20:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:12,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:20:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:12,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:20:12,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:12,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:20:12,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:12,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:20:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:12,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:20:12,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:12,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:20:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:12,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 12:20:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:12,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 12:20:12,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:12,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 12:20:12,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:12,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 12:20:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:12,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:20:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:12,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 12:20:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:12,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 12:20:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:12,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 12:20:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:12,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 12:20:12,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:12,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 12:20:12,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:12,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 12:20:12,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:12,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 12:20:12,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:12,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 12:20:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:12,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 12:20:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:12,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 12:20:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:12,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 12:20:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:12,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 12:20:12,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:12,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-12 12:20:12,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:12,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2022-07-12 12:20:12,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:20:12,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579586668] [2022-07-12 12:20:12,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579586668] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:20:12,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:20:12,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:20:12,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885350657] [2022-07-12 12:20:12,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:20:12,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:20:12,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:20:12,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:20:12,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:20:12,829 INFO L87 Difference]: Start difference. First operand 4362 states and 6134 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-12 12:20:14,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:20:14,783 INFO L93 Difference]: Finished difference Result 4808 states and 7038 transitions. [2022-07-12 12:20:14,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:20:14,784 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 187 [2022-07-12 12:20:14,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:20:14,801 INFO L225 Difference]: With dead ends: 4808 [2022-07-12 12:20:14,801 INFO L226 Difference]: Without dead ends: 4805 [2022-07-12 12:20:14,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:20:14,803 INFO L413 NwaCegarLoop]: 1509 mSDtfsCounter, 1922 mSDsluCounter, 1447 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 793 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2099 SdHoareTripleChecker+Valid, 2956 SdHoareTripleChecker+Invalid, 1745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 793 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-12 12:20:14,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2099 Valid, 2956 Invalid, 1745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [793 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-12 12:20:14,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4805 states. [2022-07-12 12:20:14,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4805 to 4361. [2022-07-12 12:20:14,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4361 states, 3113 states have (on average 1.3311917764214585) internal successors, (4144), 3162 states have internal predecessors, (4144), 959 states have call successors, (959), 277 states have call predecessors, (959), 288 states have return successors, (1029), 963 states have call predecessors, (1029), 957 states have call successors, (1029) [2022-07-12 12:20:14,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4361 states to 4361 states and 6132 transitions. [2022-07-12 12:20:14,939 INFO L78 Accepts]: Start accepts. Automaton has 4361 states and 6132 transitions. Word has length 187 [2022-07-12 12:20:14,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:20:14,940 INFO L495 AbstractCegarLoop]: Abstraction has 4361 states and 6132 transitions. [2022-07-12 12:20:14,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-12 12:20:14,940 INFO L276 IsEmpty]: Start isEmpty. Operand 4361 states and 6132 transitions. [2022-07-12 12:20:14,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-07-12 12:20:14,942 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:20:14,942 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:20:14,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 12:20:14,943 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:20:14,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:20:14,943 INFO L85 PathProgramCache]: Analyzing trace with hash -55862094, now seen corresponding path program 1 times [2022-07-12 12:20:14,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:20:14,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743955003] [2022-07-12 12:20:14,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:20:14,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:20:14,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:15,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:20:15,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:15,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:20:15,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:15,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:20:15,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:15,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:20:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:15,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:20:15,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:15,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:20:15,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:15,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:20:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:15,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:20:15,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:15,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 12:20:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:15,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 12:20:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:15,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 12:20:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:15,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 12:20:15,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:15,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:20:15,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:15,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 12:20:15,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:15,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 12:20:15,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:15,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 12:20:15,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:15,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 12:20:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:15,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 12:20:15,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:15,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 12:20:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:15,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 12:20:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:15,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 12:20:15,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:15,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 12:20:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:15,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 12:20:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:15,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 12:20:15,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:15,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 12:20:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:15,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-12 12:20:15,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:15,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2022-07-12 12:20:15,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:20:15,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743955003] [2022-07-12 12:20:15,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743955003] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:20:15,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:20:15,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:20:15,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283845527] [2022-07-12 12:20:15,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:20:15,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:20:15,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:20:15,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:20:15,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:20:15,174 INFO L87 Difference]: Start difference. First operand 4361 states and 6132 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-12 12:20:17,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:20:17,016 INFO L93 Difference]: Finished difference Result 4807 states and 7036 transitions. [2022-07-12 12:20:17,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:20:17,017 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 188 [2022-07-12 12:20:17,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:20:17,035 INFO L225 Difference]: With dead ends: 4807 [2022-07-12 12:20:17,036 INFO L226 Difference]: Without dead ends: 4795 [2022-07-12 12:20:17,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:20:17,038 INFO L413 NwaCegarLoop]: 1510 mSDtfsCounter, 1916 mSDsluCounter, 1447 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 787 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2092 SdHoareTripleChecker+Valid, 2957 SdHoareTripleChecker+Invalid, 1741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 787 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-12 12:20:17,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2092 Valid, 2957 Invalid, 1741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [787 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-12 12:20:17,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4795 states. [2022-07-12 12:20:17,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4795 to 4351. [2022-07-12 12:20:17,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4351 states, 3104 states have (on average 1.3308634020618557) internal successors, (4131), 3152 states have internal predecessors, (4131), 958 states have call successors, (958), 277 states have call predecessors, (958), 288 states have return successors, (1029), 963 states have call predecessors, (1029), 957 states have call successors, (1029) [2022-07-12 12:20:17,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4351 states to 4351 states and 6118 transitions. [2022-07-12 12:20:17,168 INFO L78 Accepts]: Start accepts. Automaton has 4351 states and 6118 transitions. Word has length 188 [2022-07-12 12:20:17,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:20:17,169 INFO L495 AbstractCegarLoop]: Abstraction has 4351 states and 6118 transitions. [2022-07-12 12:20:17,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-12 12:20:17,169 INFO L276 IsEmpty]: Start isEmpty. Operand 4351 states and 6118 transitions. [2022-07-12 12:20:17,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-07-12 12:20:17,177 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:20:17,178 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:20:17,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 12:20:17,178 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:20:17,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:20:17,179 INFO L85 PathProgramCache]: Analyzing trace with hash 734121489, now seen corresponding path program 1 times [2022-07-12 12:20:17,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:20:17,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082102275] [2022-07-12 12:20:17,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:20:17,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:20:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:20:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:20:17,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:20:17,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:20:17,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:20:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:20:17,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:20:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:20:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 12:20:17,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 12:20:17,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 12:20:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 12:20:17,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:20:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 12:20:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 12:20:17,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 12:20:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 12:20:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 12:20:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 12:20:17,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 12:20:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 12:20:17,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 12:20:17,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 12:20:17,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 12:20:17,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 12:20:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-12 12:20:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 12:20:17,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:17,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:17,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-12 12:20:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-12 12:20:17,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-12 12:20:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-12 12:20:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-12 12:20:17,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-12 12:20:17,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 12:20:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-12 12:20:17,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-07-12 12:20:17,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-12 12:20:17,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:17,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1241 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1232 trivial. 0 not checked. [2022-07-12 12:20:17,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:20:17,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082102275] [2022-07-12 12:20:17,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082102275] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:20:17,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:20:17,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 12:20:17,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307323539] [2022-07-12 12:20:17,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:20:17,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 12:20:17,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:20:17,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 12:20:17,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-07-12 12:20:17,519 INFO L87 Difference]: Start difference. First operand 4351 states and 6118 transitions. Second operand has 10 states, 10 states have (on average 13.5) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (42), 9 states have call predecessors, (42), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-07-12 12:20:22,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:20:22,025 INFO L93 Difference]: Finished difference Result 11248 states and 16329 transitions. [2022-07-12 12:20:22,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 12:20:22,025 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (42), 9 states have call predecessors, (42), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 305 [2022-07-12 12:20:22,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:20:22,052 INFO L225 Difference]: With dead ends: 11248 [2022-07-12 12:20:22,052 INFO L226 Difference]: Without dead ends: 6950 [2022-07-12 12:20:22,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2022-07-12 12:20:22,067 INFO L413 NwaCegarLoop]: 1526 mSDtfsCounter, 2487 mSDsluCounter, 4449 mSDsCounter, 0 mSdLazyCounter, 4457 mSolverCounterSat, 2110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2638 SdHoareTripleChecker+Valid, 5975 SdHoareTripleChecker+Invalid, 6567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2110 IncrementalHoareTripleChecker+Valid, 4457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:20:22,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2638 Valid, 5975 Invalid, 6567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2110 Valid, 4457 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-07-12 12:20:22,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6950 states. [2022-07-12 12:20:22,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6950 to 6148. [2022-07-12 12:20:22,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6148 states, 4466 states have (on average 1.3463949843260188) internal successors, (6013), 4522 states have internal predecessors, (6013), 1279 states have call successors, (1279), 375 states have call predecessors, (1279), 402 states have return successors, (1410), 1292 states have call predecessors, (1410), 1278 states have call successors, (1410) [2022-07-12 12:20:22,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6148 states to 6148 states and 8702 transitions. [2022-07-12 12:20:22,276 INFO L78 Accepts]: Start accepts. Automaton has 6148 states and 8702 transitions. Word has length 305 [2022-07-12 12:20:22,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:20:22,277 INFO L495 AbstractCegarLoop]: Abstraction has 6148 states and 8702 transitions. [2022-07-12 12:20:22,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (42), 9 states have call predecessors, (42), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-07-12 12:20:22,277 INFO L276 IsEmpty]: Start isEmpty. Operand 6148 states and 8702 transitions. [2022-07-12 12:20:22,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-07-12 12:20:22,291 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:20:22,291 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:20:22,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 12:20:22,291 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:20:22,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:20:22,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1812933429, now seen corresponding path program 1 times [2022-07-12 12:20:22,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:20:22,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300041380] [2022-07-12 12:20:22,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:20:22,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:20:22,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:20:22,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:20:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:20:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:20:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:20:22,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:20:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:20:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:20:22,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 12:20:22,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 12:20:22,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 12:20:22,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 12:20:22,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:20:22,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 12:20:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 12:20:22,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 12:20:22,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 12:20:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 12:20:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 12:20:22,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 12:20:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 12:20:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 12:20:22,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 12:20:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 12:20:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 12:20:22,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-12 12:20:22,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-12 12:20:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-12 12:20:22,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:22,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-12 12:20:22,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-12 12:20:22,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-12 12:20:22,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-12 12:20:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-07-12 12:20:22,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:22,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-07-12 12:20:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 12:20:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-07-12 12:20:22,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-07-12 12:20:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-07-12 12:20:22,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:22,716 INFO L134 CoverageAnalysis]: Checked inductivity of 1373 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 1341 trivial. 0 not checked. [2022-07-12 12:20:22,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:20:22,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300041380] [2022-07-12 12:20:22,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300041380] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:20:22,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:20:22,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 12:20:22,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572660596] [2022-07-12 12:20:22,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:20:22,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 12:20:22,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:20:22,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 12:20:22,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-07-12 12:20:22,719 INFO L87 Difference]: Start difference. First operand 6148 states and 8702 transitions. Second operand has 10 states, 10 states have (on average 14.9) internal successors, (149), 3 states have internal predecessors, (149), 2 states have call successors, (43), 9 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-07-12 12:20:26,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:20:26,650 INFO L93 Difference]: Finished difference Result 10119 states and 14590 transitions. [2022-07-12 12:20:26,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 12:20:26,650 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.9) internal successors, (149), 3 states have internal predecessors, (149), 2 states have call successors, (43), 9 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 332 [2022-07-12 12:20:26,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:20:26,663 INFO L225 Difference]: With dead ends: 10119 [2022-07-12 12:20:26,663 INFO L226 Difference]: Without dead ends: 4034 [2022-07-12 12:20:26,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2022-07-12 12:20:26,681 INFO L413 NwaCegarLoop]: 1461 mSDtfsCounter, 1691 mSDsluCounter, 4486 mSDsCounter, 0 mSdLazyCounter, 3952 mSolverCounterSat, 1808 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1760 SdHoareTripleChecker+Valid, 5947 SdHoareTripleChecker+Invalid, 5760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1808 IncrementalHoareTripleChecker+Valid, 3952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-12 12:20:26,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1760 Valid, 5947 Invalid, 5760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1808 Valid, 3952 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-12 12:20:26,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4034 states. [2022-07-12 12:20:26,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4034 to 3596. [2022-07-12 12:20:26,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3596 states, 2620 states have (on average 1.3458015267175572) internal successors, (3526), 2648 states have internal predecessors, (3526), 745 states have call successors, (745), 217 states have call predecessors, (745), 230 states have return successors, (810), 751 states have call predecessors, (810), 744 states have call successors, (810) [2022-07-12 12:20:26,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3596 states to 3596 states and 5081 transitions. [2022-07-12 12:20:26,788 INFO L78 Accepts]: Start accepts. Automaton has 3596 states and 5081 transitions. Word has length 332 [2022-07-12 12:20:26,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:20:26,788 INFO L495 AbstractCegarLoop]: Abstraction has 3596 states and 5081 transitions. [2022-07-12 12:20:26,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.9) internal successors, (149), 3 states have internal predecessors, (149), 2 states have call successors, (43), 9 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-07-12 12:20:26,788 INFO L276 IsEmpty]: Start isEmpty. Operand 3596 states and 5081 transitions. [2022-07-12 12:20:26,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2022-07-12 12:20:26,799 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:20:26,799 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:20:26,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 12:20:26,800 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:20:26,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:20:26,800 INFO L85 PathProgramCache]: Analyzing trace with hash -441968209, now seen corresponding path program 1 times [2022-07-12 12:20:26,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:20:26,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723704753] [2022-07-12 12:20:26,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:20:26,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:20:26,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:26,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:20:26,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:26,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:20:26,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:26,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:20:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:26,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:20:26,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:26,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:20:26,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:26,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:20:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:26,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:20:26,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:26,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:20:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:26,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 12:20:26,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:26,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 12:20:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:26,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 12:20:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:26,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 12:20:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:26,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:20:26,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:26,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 12:20:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:26,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 12:20:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:26,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 12:20:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:26,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 12:20:26,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:26,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 12:20:26,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:26,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 12:20:26,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 12:20:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 12:20:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 12:20:27,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 12:20:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 12:20:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 12:20:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-12 12:20:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 12:20:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-12 12:20:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-12 12:20:27,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 12:20:27,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-12 12:20:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-12 12:20:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-12 12:20:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-12 12:20:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-12 12:20:27,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-12 12:20:27,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-12 12:20:27,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-12 12:20:27,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-12 12:20:27,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-12 12:20:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:27,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-12 12:20:27,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-07-12 12:20:27,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-07-12 12:20:27,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-12 12:20:27,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-12 12:20:27,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-12 12:20:27,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:27,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 12:20:27,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2022-07-12 12:20:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-07-12 12:20:27,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:27,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2727 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2705 trivial. 0 not checked. [2022-07-12 12:20:27,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:20:27,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723704753] [2022-07-12 12:20:27,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723704753] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:20:27,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:20:27,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 12:20:27,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553236092] [2022-07-12 12:20:27,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:20:27,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 12:20:27,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:20:27,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 12:20:27,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-12 12:20:27,181 INFO L87 Difference]: Start difference. First operand 3596 states and 5081 transitions. Second operand has 11 states, 11 states have (on average 14.727272727272727) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (54), 9 states have call predecessors, (54), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-07-12 12:20:31,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:20:31,472 INFO L93 Difference]: Finished difference Result 8752 states and 13117 transitions. [2022-07-12 12:20:31,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 12:20:31,473 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 14.727272727272727) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (54), 9 states have call predecessors, (54), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 400 [2022-07-12 12:20:31,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:20:31,560 INFO L225 Difference]: With dead ends: 8752 [2022-07-12 12:20:31,561 INFO L226 Difference]: Without dead ends: 5645 [2022-07-12 12:20:31,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-12 12:20:31,574 INFO L413 NwaCegarLoop]: 1895 mSDtfsCounter, 2351 mSDsluCounter, 4725 mSDsCounter, 0 mSdLazyCounter, 3650 mSolverCounterSat, 1707 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2496 SdHoareTripleChecker+Valid, 6620 SdHoareTripleChecker+Invalid, 5357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1707 IncrementalHoareTripleChecker+Valid, 3650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-07-12 12:20:31,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2496 Valid, 6620 Invalid, 5357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1707 Valid, 3650 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-07-12 12:20:31,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5645 states. [2022-07-12 12:20:31,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5645 to 3600. [2022-07-12 12:20:31,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3600 states, 2624 states have (on average 1.3452743902439024) internal successors, (3530), 2652 states have internal predecessors, (3530), 745 states have call successors, (745), 217 states have call predecessors, (745), 230 states have return successors, (810), 751 states have call predecessors, (810), 744 states have call successors, (810) [2022-07-12 12:20:31,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3600 states to 3600 states and 5085 transitions. [2022-07-12 12:20:31,760 INFO L78 Accepts]: Start accepts. Automaton has 3600 states and 5085 transitions. Word has length 400 [2022-07-12 12:20:31,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:20:31,760 INFO L495 AbstractCegarLoop]: Abstraction has 3600 states and 5085 transitions. [2022-07-12 12:20:31,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 14.727272727272727) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (54), 9 states have call predecessors, (54), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-07-12 12:20:31,761 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5085 transitions. [2022-07-12 12:20:31,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2022-07-12 12:20:31,772 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:20:31,772 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:20:31,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 12:20:31,773 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:20:31,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:20:31,774 INFO L85 PathProgramCache]: Analyzing trace with hash 218678581, now seen corresponding path program 1 times [2022-07-12 12:20:31,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:20:31,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957487954] [2022-07-12 12:20:31,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:20:31,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:20:31,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:31,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:20:31,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:31,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:20:31,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:31,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:20:31,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:31,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:20:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:20:32,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:20:32,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:20:32,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:20:32,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 12:20:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 12:20:32,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 12:20:32,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 12:20:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:20:32,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 12:20:32,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 12:20:32,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 12:20:32,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 12:20:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 12:20:32,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 12:20:32,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 12:20:32,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 12:20:32,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 12:20:32,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 12:20:32,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 12:20:32,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 12:20:32,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-12 12:20:32,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 12:20:32,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-12 12:20:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-12 12:20:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 12:20:32,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-12 12:20:32,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-12 12:20:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-12 12:20:32,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-12 12:20:32,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-12 12:20:32,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-12 12:20:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-12 12:20:32,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-12 12:20:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-12 12:20:32,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-12 12:20:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-12 12:20:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-07-12 12:20:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-07-12 12:20:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:32,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-07-12 12:20:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-12 12:20:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:32,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-12 12:20:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-07-12 12:20:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-07-12 12:20:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-07-12 12:20:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-07-12 12:20:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2022-07-12 12:20:32,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2022-07-12 12:20:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-07-12 12:20:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:32,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 12:20:32,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2022-07-12 12:20:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2022-07-12 12:20:32,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:32,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2780 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2758 trivial. 0 not checked. [2022-07-12 12:20:32,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:20:32,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957487954] [2022-07-12 12:20:32,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957487954] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:20:32,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:20:32,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 12:20:32,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885240650] [2022-07-12 12:20:32,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:20:32,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 12:20:32,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:20:32,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 12:20:32,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-07-12 12:20:32,287 INFO L87 Difference]: Start difference. First operand 3600 states and 5085 transitions. Second operand has 12 states, 12 states have (on average 15.583333333333334) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (62), 9 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-07-12 12:20:37,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:20:37,558 INFO L93 Difference]: Finished difference Result 9663 states and 14650 transitions. [2022-07-12 12:20:37,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 12:20:37,558 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.583333333333334) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (62), 9 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 458 [2022-07-12 12:20:37,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:20:37,585 INFO L225 Difference]: With dead ends: 9663 [2022-07-12 12:20:37,586 INFO L226 Difference]: Without dead ends: 6552 [2022-07-12 12:20:37,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2022-07-12 12:20:37,600 INFO L413 NwaCegarLoop]: 2262 mSDtfsCounter, 3130 mSDsluCounter, 8234 mSDsCounter, 0 mSdLazyCounter, 5462 mSolverCounterSat, 1956 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3278 SdHoareTripleChecker+Valid, 10496 SdHoareTripleChecker+Invalid, 7418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1956 IncrementalHoareTripleChecker+Valid, 5462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-07-12 12:20:37,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3278 Valid, 10496 Invalid, 7418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1956 Valid, 5462 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-07-12 12:20:37,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6552 states. [2022-07-12 12:20:37,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6552 to 3606. [2022-07-12 12:20:37,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3606 states, 2630 states have (on average 1.3444866920152092) internal successors, (3536), 2658 states have internal predecessors, (3536), 745 states have call successors, (745), 217 states have call predecessors, (745), 230 states have return successors, (810), 751 states have call predecessors, (810), 744 states have call successors, (810) [2022-07-12 12:20:37,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3606 states to 3606 states and 5091 transitions. [2022-07-12 12:20:37,849 INFO L78 Accepts]: Start accepts. Automaton has 3606 states and 5091 transitions. Word has length 458 [2022-07-12 12:20:37,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:20:37,851 INFO L495 AbstractCegarLoop]: Abstraction has 3606 states and 5091 transitions. [2022-07-12 12:20:37,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.583333333333334) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (62), 9 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-07-12 12:20:37,851 INFO L276 IsEmpty]: Start isEmpty. Operand 3606 states and 5091 transitions. [2022-07-12 12:20:37,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2022-07-12 12:20:37,863 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:20:37,864 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:20:37,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 12:20:37,864 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:20:37,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:20:37,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1282570820, now seen corresponding path program 1 times [2022-07-12 12:20:37,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:20:37,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549591916] [2022-07-12 12:20:37,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:20:37,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:20:37,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:20:38,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:20:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:20:38,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:20:38,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:20:38,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:20:38,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:20:38,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:20:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 12:20:38,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 12:20:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 12:20:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 12:20:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:20:38,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 12:20:38,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 12:20:38,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 12:20:38,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 12:20:38,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 12:20:38,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 12:20:38,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 12:20:38,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 12:20:38,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 12:20:38,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 12:20:38,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 12:20:38,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 12:20:38,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-12 12:20:38,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 12:20:38,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-12 12:20:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-12 12:20:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 12:20:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-12 12:20:38,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-12 12:20:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-12 12:20:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-12 12:20:38,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-12 12:20:38,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-12 12:20:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-12 12:20:38,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-12 12:20:38,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-12 12:20:38,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-12 12:20:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:38,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-12 12:20:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-07-12 12:20:38,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-07-12 12:20:38,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:38,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-07-12 12:20:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-12 12:20:38,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:38,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-12 12:20:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-12 12:20:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-12 12:20:38,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-07-12 12:20:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-07-12 12:20:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-12 12:20:38,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2022-07-12 12:20:38,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:38,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2022-07-12 12:20:38,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 12:20:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-07-12 12:20:38,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-07-12 12:20:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:38,342 INFO L134 CoverageAnalysis]: Checked inductivity of 2780 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2758 trivial. 0 not checked. [2022-07-12 12:20:38,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:20:38,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549591916] [2022-07-12 12:20:38,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549591916] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:20:38,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:20:38,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 12:20:38,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524495707] [2022-07-12 12:20:38,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:20:38,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 12:20:38,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:20:38,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 12:20:38,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-07-12 12:20:38,345 INFO L87 Difference]: Start difference. First operand 3606 states and 5091 transitions. Second operand has 12 states, 12 states have (on average 15.75) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (62), 9 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-07-12 12:20:43,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:20:43,256 INFO L93 Difference]: Finished difference Result 9703 states and 14702 transitions. [2022-07-12 12:20:43,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 12:20:43,257 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.75) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (62), 9 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 460 [2022-07-12 12:20:43,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:20:43,279 INFO L225 Difference]: With dead ends: 9703 [2022-07-12 12:20:43,279 INFO L226 Difference]: Without dead ends: 6586 [2022-07-12 12:20:43,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2022-07-12 12:20:43,291 INFO L413 NwaCegarLoop]: 2306 mSDtfsCounter, 3592 mSDsluCounter, 8515 mSDsCounter, 0 mSdLazyCounter, 5381 mSolverCounterSat, 2599 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3742 SdHoareTripleChecker+Valid, 10821 SdHoareTripleChecker+Invalid, 7980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2599 IncrementalHoareTripleChecker+Valid, 5381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-07-12 12:20:43,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3742 Valid, 10821 Invalid, 7980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2599 Valid, 5381 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-07-12 12:20:43,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6586 states. [2022-07-12 12:20:43,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6586 to 3612. [2022-07-12 12:20:43,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3612 states, 2636 states have (on average 1.3437025796661608) internal successors, (3542), 2664 states have internal predecessors, (3542), 745 states have call successors, (745), 217 states have call predecessors, (745), 230 states have return successors, (810), 751 states have call predecessors, (810), 744 states have call successors, (810) [2022-07-12 12:20:43,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3612 states to 3612 states and 5097 transitions. [2022-07-12 12:20:43,519 INFO L78 Accepts]: Start accepts. Automaton has 3612 states and 5097 transitions. Word has length 460 [2022-07-12 12:20:43,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:20:43,520 INFO L495 AbstractCegarLoop]: Abstraction has 3612 states and 5097 transitions. [2022-07-12 12:20:43,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.75) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (62), 9 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-07-12 12:20:43,520 INFO L276 IsEmpty]: Start isEmpty. Operand 3612 states and 5097 transitions. [2022-07-12 12:20:43,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2022-07-12 12:20:43,534 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:20:43,534 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:20:43,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 12:20:43,535 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:20:43,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:20:43,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1486019019, now seen corresponding path program 1 times [2022-07-12 12:20:43,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:20:43,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462599386] [2022-07-12 12:20:43,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:20:43,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:20:43,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:43,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:20:43,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:43,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:20:43,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:43,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:20:43,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:43,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:20:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:43,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:20:43,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:43,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:20:43,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:43,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:20:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:43,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:20:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:43,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 12:20:43,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:43,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 12:20:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:43,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 12:20:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:43,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 12:20:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:43,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:20:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:43,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 12:20:43,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:43,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 12:20:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:43,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 12:20:43,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:43,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 12:20:43,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:43,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 12:20:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 12:20:44,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 12:20:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 12:20:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 12:20:44,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 12:20:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 12:20:44,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 12:20:44,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-12 12:20:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 12:20:44,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-12 12:20:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-12 12:20:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 12:20:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-12 12:20:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-12 12:20:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-12 12:20:44,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-12 12:20:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-12 12:20:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-12 12:20:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-12 12:20:44,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-12 12:20:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-12 12:20:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-12 12:20:44,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:44,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-12 12:20:44,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-07-12 12:20:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-07-12 12:20:44,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-07-12 12:20:44,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-12 12:20:44,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-12 12:20:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-12 12:20:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-12 12:20:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2022-07-12 12:20:44,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2022-07-12 12:20:44,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2022-07-12 12:20:44,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-07-12 12:20:44,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:44,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2022-07-12 12:20:44,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:44,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 12:20:44,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2022-07-12 12:20:44,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-07-12 12:20:44,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:44,320 INFO L134 CoverageAnalysis]: Checked inductivity of 2780 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 2748 trivial. 0 not checked. [2022-07-12 12:20:44,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:20:44,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462599386] [2022-07-12 12:20:44,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462599386] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 12:20:44,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534193244] [2022-07-12 12:20:44,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:20:44,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 12:20:44,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:20:44,323 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 12:20:44,324 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 12:20:45,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:45,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 4432 conjuncts, 59 conjunts are in the unsatisfiable core [2022-07-12 12:20:45,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:20:45,666 INFO L134 CoverageAnalysis]: Checked inductivity of 2780 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 2724 trivial. 0 not checked. [2022-07-12 12:20:45,674 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:20:45,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534193244] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:20:45,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 12:20:45,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 19 [2022-07-12 12:20:45,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106926580] [2022-07-12 12:20:45,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:20:45,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 12:20:45,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:20:45,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 12:20:45,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-07-12 12:20:45,678 INFO L87 Difference]: Start difference. First operand 3612 states and 5097 transitions. Second operand has 10 states, 10 states have (on average 19.6) internal successors, (196), 7 states have internal predecessors, (196), 2 states have call successors, (62), 2 states have call predecessors, (62), 5 states have return successors, (61), 5 states have call predecessors, (61), 2 states have call successors, (61) [2022-07-12 12:20:46,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:20:46,029 INFO L93 Difference]: Finished difference Result 7546 states and 10805 transitions. [2022-07-12 12:20:46,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 12:20:46,030 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 19.6) internal successors, (196), 7 states have internal predecessors, (196), 2 states have call successors, (62), 2 states have call predecessors, (62), 5 states have return successors, (61), 5 states have call predecessors, (61), 2 states have call successors, (61) Word has length 462 [2022-07-12 12:20:46,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:20:46,047 INFO L225 Difference]: With dead ends: 7546 [2022-07-12 12:20:46,048 INFO L226 Difference]: Without dead ends: 4423 [2022-07-12 12:20:46,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 592 GetRequests, 573 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-07-12 12:20:46,062 INFO L413 NwaCegarLoop]: 1968 mSDtfsCounter, 286 mSDsluCounter, 15364 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 17332 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:20:46,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 17332 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 12:20:46,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4423 states. [2022-07-12 12:20:46,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4423 to 3632. [2022-07-12 12:20:46,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3632 states, 2651 states have (on average 1.3417578272350057) internal successors, (3557), 2678 states have internal predecessors, (3557), 745 states have call successors, (745), 217 states have call predecessors, (745), 235 states have return successors, (825), 757 states have call predecessors, (825), 744 states have call successors, (825) [2022-07-12 12:20:46,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3632 states to 3632 states and 5127 transitions. [2022-07-12 12:20:46,325 INFO L78 Accepts]: Start accepts. Automaton has 3632 states and 5127 transitions. Word has length 462 [2022-07-12 12:20:46,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:20:46,325 INFO L495 AbstractCegarLoop]: Abstraction has 3632 states and 5127 transitions. [2022-07-12 12:20:46,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 19.6) internal successors, (196), 7 states have internal predecessors, (196), 2 states have call successors, (62), 2 states have call predecessors, (62), 5 states have return successors, (61), 5 states have call predecessors, (61), 2 states have call successors, (61) [2022-07-12 12:20:46,326 INFO L276 IsEmpty]: Start isEmpty. Operand 3632 states and 5127 transitions. [2022-07-12 12:20:46,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2022-07-12 12:20:46,339 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:20:46,339 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:20:46,390 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 12:20:46,563 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,SelfDestructingSolverStorable11 [2022-07-12 12:20:46,564 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:20:46,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:20:46,564 INFO L85 PathProgramCache]: Analyzing trace with hash 983297457, now seen corresponding path program 1 times [2022-07-12 12:20:46,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:20:46,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991806687] [2022-07-12 12:20:46,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:20:46,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:20:46,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:20:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:20:46,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:20:46,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:20:46,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:20:46,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:20:46,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:20:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:20:46,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 12:20:46,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 12:20:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 12:20:46,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 12:20:46,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:20:46,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 12:20:46,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 12:20:46,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 12:20:46,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 12:20:46,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 12:20:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 12:20:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 12:20:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 12:20:46,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 12:20:46,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 12:20:46,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 12:20:46,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 12:20:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-12 12:20:46,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 12:20:46,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-12 12:20:46,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-12 12:20:46,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 12:20:46,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-12 12:20:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-12 12:20:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-12 12:20:46,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-12 12:20:46,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-12 12:20:46,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-12 12:20:46,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-12 12:20:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-12 12:20:46,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:46,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-12 12:20:47,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:47,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-12 12:20:47,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:47,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:47,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:47,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:47,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:20:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:47,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-07-12 12:20:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:47,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-07-12 12:20:47,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:47,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-12 12:20:47,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:47,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:47,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:47,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-07-12 12:20:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:47,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-07-12 12:20:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:47,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:47,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:47,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2022-07-12 12:20:47,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:47,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-12 12:20:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:47,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-07-12 12:20:47,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:47,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-07-12 12:20:47,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:47,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2022-07-12 12:20:47,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:47,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-07-12 12:20:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:47,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2022-07-12 12:20:47,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:47,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:47,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:47,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2022-07-12 12:20:47,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:47,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:47,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:47,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 12:20:47,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:47,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-07-12 12:20:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:47,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2022-07-12 12:20:47,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:47,225 INFO L134 CoverageAnalysis]: Checked inductivity of 2780 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 2748 trivial. 0 not checked. [2022-07-12 12:20:47,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:20:47,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991806687] [2022-07-12 12:20:47,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991806687] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 12:20:47,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33217923] [2022-07-12 12:20:47,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:20:47,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 12:20:47,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:20:47,240 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 12:20:47,265 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 12:20:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:48,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 4458 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-12 12:20:48,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:20:48,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2780 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 2738 trivial. 0 not checked. [2022-07-12 12:20:48,388 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:20:48,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33217923] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:20:48,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 12:20:48,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 12 [2022-07-12 12:20:48,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017971072] [2022-07-12 12:20:48,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:20:48,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:20:48,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:20:48,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:20:48,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-07-12 12:20:48,390 INFO L87 Difference]: Start difference. First operand 3632 states and 5127 transitions. Second operand has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 2 states have call successors, (63), 2 states have call predecessors, (63), 3 states have return successors, (62), 3 states have call predecessors, (62), 2 states have call successors, (62) [2022-07-12 12:20:48,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:20:48,543 INFO L93 Difference]: Finished difference Result 6779 states and 9566 transitions. [2022-07-12 12:20:48,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:20:48,544 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 2 states have call successors, (63), 2 states have call predecessors, (63), 3 states have return successors, (62), 3 states have call predecessors, (62), 2 states have call successors, (62) Word has length 468 [2022-07-12 12:20:48,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:20:48,565 INFO L225 Difference]: With dead ends: 6779 [2022-07-12 12:20:48,565 INFO L226 Difference]: Without dead ends: 3632 [2022-07-12 12:20:48,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 599 GetRequests, 587 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-07-12 12:20:48,578 INFO L413 NwaCegarLoop]: 1587 mSDtfsCounter, 0 mSDsluCounter, 4750 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6337 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:20:48,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6337 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 12:20:48,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3632 states. [2022-07-12 12:20:48,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3632 to 3632. [2022-07-12 12:20:48,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3632 states, 2651 states have (on average 1.3417578272350057) internal successors, (3557), 2678 states have internal predecessors, (3557), 745 states have call successors, (745), 217 states have call predecessors, (745), 235 states have return successors, (823), 757 states have call predecessors, (823), 744 states have call successors, (823) [2022-07-12 12:20:48,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3632 states to 3632 states and 5125 transitions. [2022-07-12 12:20:48,800 INFO L78 Accepts]: Start accepts. Automaton has 3632 states and 5125 transitions. Word has length 468 [2022-07-12 12:20:48,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:20:48,801 INFO L495 AbstractCegarLoop]: Abstraction has 3632 states and 5125 transitions. [2022-07-12 12:20:48,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 2 states have call successors, (63), 2 states have call predecessors, (63), 3 states have return successors, (62), 3 states have call predecessors, (62), 2 states have call successors, (62) [2022-07-12 12:20:48,801 INFO L276 IsEmpty]: Start isEmpty. Operand 3632 states and 5125 transitions. [2022-07-12 12:20:48,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-07-12 12:20:48,810 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:20:48,810 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:20:48,838 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 12:20:49,031 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,SelfDestructingSolverStorable12 [2022-07-12 12:20:49,032 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:20:49,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:20:49,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1043309421, now seen corresponding path program 2 times [2022-07-12 12:20:49,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:20:49,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940503409] [2022-07-12 12:20:49,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:20:49,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:20:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:20:49,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:20:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:20:49,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:20:49,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:20:49,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:20:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:20:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:20:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 12:20:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 12:20:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 12:20:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 12:20:49,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:20:49,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 12:20:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 12:20:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 12:20:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 12:20:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 12:20:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 12:20:49,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 12:20:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 12:20:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 12:20:49,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 12:20:49,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 12:20:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 12:20:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-12 12:20:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 12:20:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-12 12:20:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-12 12:20:49,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 12:20:49,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-12 12:20:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-12 12:20:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-12 12:20:49,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-12 12:20:49,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-12 12:20:49,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-12 12:20:49,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-12 12:20:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-12 12:20:49,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-12 12:20:49,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:20:49,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-12 12:20:49,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:49,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:20:49,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-07-12 12:20:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-07-12 12:20:49,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-12 12:20:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-07-12 12:20:49,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-12 12:20:49,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2022-07-12 12:20:49,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-07-12 12:20:49,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-07-12 12:20:49,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2022-07-12 12:20:49,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-07-12 12:20:49,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2022-07-12 12:20:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2022-07-12 12:20:49,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:49,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-07-12 12:20:49,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 12:20:49,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2022-07-12 12:20:49,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-07-12 12:20:49,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:49,607 INFO L134 CoverageAnalysis]: Checked inductivity of 2786 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2764 trivial. 0 not checked. [2022-07-12 12:20:49,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:20:49,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940503409] [2022-07-12 12:20:49,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940503409] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:20:49,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:20:49,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 12:20:49,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283143558] [2022-07-12 12:20:49,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:20:49,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 12:20:49,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:20:49,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 12:20:49,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-12 12:20:49,611 INFO L87 Difference]: Start difference. First operand 3632 states and 5125 transitions. Second operand has 11 states, 11 states have (on average 17.818181818181817) internal successors, (196), 4 states have internal predecessors, (196), 2 states have call successors, (63), 9 states have call predecessors, (63), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2022-07-12 12:20:54,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:20:54,206 INFO L93 Difference]: Finished difference Result 8025 states and 11832 transitions. [2022-07-12 12:20:54,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 12:20:54,206 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 17.818181818181817) internal successors, (196), 4 states have internal predecessors, (196), 2 states have call successors, (63), 9 states have call predecessors, (63), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 474 [2022-07-12 12:20:54,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:20:54,223 INFO L225 Difference]: With dead ends: 8025 [2022-07-12 12:20:54,223 INFO L226 Difference]: Without dead ends: 4882 [2022-07-12 12:20:54,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-12 12:20:54,233 INFO L413 NwaCegarLoop]: 1842 mSDtfsCounter, 2356 mSDsluCounter, 6136 mSDsCounter, 0 mSdLazyCounter, 4550 mSolverCounterSat, 2016 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2425 SdHoareTripleChecker+Valid, 7978 SdHoareTripleChecker+Invalid, 6566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2016 IncrementalHoareTripleChecker+Valid, 4550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-12 12:20:54,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2425 Valid, 7978 Invalid, 6566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2016 Valid, 4550 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-07-12 12:20:54,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4882 states. [2022-07-12 12:20:54,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4882 to 3636. [2022-07-12 12:20:54,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3636 states, 2655 states have (on average 1.3412429378531074) internal successors, (3561), 2682 states have internal predecessors, (3561), 745 states have call successors, (745), 217 states have call predecessors, (745), 235 states have return successors, (823), 757 states have call predecessors, (823), 744 states have call successors, (823) [2022-07-12 12:20:54,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3636 states to 3636 states and 5129 transitions. [2022-07-12 12:20:54,390 INFO L78 Accepts]: Start accepts. Automaton has 3636 states and 5129 transitions. Word has length 474 [2022-07-12 12:20:54,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:20:54,390 INFO L495 AbstractCegarLoop]: Abstraction has 3636 states and 5129 transitions. [2022-07-12 12:20:54,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 17.818181818181817) internal successors, (196), 4 states have internal predecessors, (196), 2 states have call successors, (63), 9 states have call predecessors, (63), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2022-07-12 12:20:54,390 INFO L276 IsEmpty]: Start isEmpty. Operand 3636 states and 5129 transitions. [2022-07-12 12:20:54,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2022-07-12 12:20:54,398 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:20:54,399 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:20:54,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-12 12:20:54,399 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:20:54,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:20:54,399 INFO L85 PathProgramCache]: Analyzing trace with hash -685530874, now seen corresponding path program 1 times [2022-07-12 12:20:54,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:20:54,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142016755] [2022-07-12 12:20:54,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:20:54,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:20:54,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:20:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:20:54,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:20:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:20:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:20:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:20:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:20:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:20:54,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 12:20:54,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 12:20:54,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 12:20:54,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 12:20:54,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:20:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 12:20:54,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 12:20:54,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 12:20:54,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 12:20:54,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 12:20:54,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 12:20:54,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 12:20:54,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 12:20:54,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 12:20:54,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 12:20:54,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 12:20:54,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 12:20:54,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-12 12:20:54,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 12:20:54,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-12 12:20:54,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-12 12:20:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 12:20:54,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-12 12:20:54,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-12 12:20:54,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-12 12:20:54,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-12 12:20:54,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-12 12:20:54,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-12 12:20:54,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-12 12:20:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-12 12:20:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-12 12:20:54,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:20:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-12 12:20:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:54,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:20:54,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-07-12 12:20:54,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-07-12 12:20:54,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-07-12 12:20:54,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-07-12 12:20:54,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:54,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-07-12 12:20:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2022-07-12 12:20:54,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:54,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-07-12 12:20:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-12 12:20:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-07-12 12:20:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2022-07-12 12:20:54,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2022-07-12 12:20:54,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2022-07-12 12:20:54,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-07-12 12:20:54,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:54,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2022-07-12 12:20:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 12:20:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2022-07-12 12:20:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-07-12 12:20:54,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:54,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2786 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2764 trivial. 0 not checked. [2022-07-12 12:20:54,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:20:54,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142016755] [2022-07-12 12:20:54,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142016755] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:20:54,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:20:54,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 12:20:54,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215252376] [2022-07-12 12:20:54,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:20:54,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 12:20:54,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:20:54,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 12:20:54,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-07-12 12:20:54,776 INFO L87 Difference]: Start difference. First operand 3636 states and 5129 transitions. Second operand has 10 states, 10 states have (on average 20.6) internal successors, (206), 3 states have internal predecessors, (206), 2 states have call successors, (64), 9 states have call predecessors, (64), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2022-07-12 12:20:59,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:20:59,239 INFO L93 Difference]: Finished difference Result 7202 states and 10433 transitions. [2022-07-12 12:20:59,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 12:20:59,239 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 20.6) internal successors, (206), 3 states have internal predecessors, (206), 2 states have call successors, (64), 9 states have call predecessors, (64), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) Word has length 486 [2022-07-12 12:20:59,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:20:59,253 INFO L225 Difference]: With dead ends: 7202 [2022-07-12 12:20:59,253 INFO L226 Difference]: Without dead ends: 4055 [2022-07-12 12:20:59,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2022-07-12 12:20:59,263 INFO L413 NwaCegarLoop]: 1445 mSDtfsCounter, 1184 mSDsluCounter, 4319 mSDsCounter, 0 mSdLazyCounter, 4088 mSolverCounterSat, 1173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 5764 SdHoareTripleChecker+Invalid, 5261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1173 IncrementalHoareTripleChecker+Valid, 4088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:20:59,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1253 Valid, 5764 Invalid, 5261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1173 Valid, 4088 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-07-12 12:20:59,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4055 states. [2022-07-12 12:20:59,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4055 to 3638. [2022-07-12 12:20:59,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3638 states, 2657 states have (on average 1.3409860745201354) internal successors, (3563), 2684 states have internal predecessors, (3563), 745 states have call successors, (745), 217 states have call predecessors, (745), 235 states have return successors, (823), 757 states have call predecessors, (823), 744 states have call successors, (823) [2022-07-12 12:20:59,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 5131 transitions. [2022-07-12 12:20:59,411 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 5131 transitions. Word has length 486 [2022-07-12 12:20:59,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:20:59,412 INFO L495 AbstractCegarLoop]: Abstraction has 3638 states and 5131 transitions. [2022-07-12 12:20:59,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 20.6) internal successors, (206), 3 states have internal predecessors, (206), 2 states have call successors, (64), 9 states have call predecessors, (64), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2022-07-12 12:20:59,412 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 5131 transitions. [2022-07-12 12:20:59,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2022-07-12 12:20:59,419 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:20:59,420 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:20:59,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-12 12:20:59,420 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:20:59,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:20:59,420 INFO L85 PathProgramCache]: Analyzing trace with hash 100467016, now seen corresponding path program 1 times [2022-07-12 12:20:59,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:20:59,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796056942] [2022-07-12 12:20:59,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:20:59,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:20:59,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:20:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:20:59,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:20:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:20:59,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:20:59,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:20:59,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:20:59,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:20:59,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 12:20:59,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 12:20:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 12:20:59,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 12:20:59,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:20:59,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 12:20:59,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 12:20:59,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 12:20:59,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 12:20:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 12:20:59,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 12:20:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 12:20:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 12:20:59,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 12:20:59,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 12:20:59,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 12:20:59,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 12:20:59,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-12 12:20:59,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 12:20:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-12 12:20:59,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-12 12:20:59,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 12:20:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-12 12:20:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-12 12:20:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-12 12:20:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-12 12:20:59,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-12 12:20:59,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-12 12:20:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-12 12:20:59,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-12 12:20:59,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-12 12:20:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:20:59,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-12 12:20:59,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:59,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:59,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:20:59,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-07-12 12:20:59,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-07-12 12:20:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-07-12 12:20:59,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-07-12 12:20:59,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:59,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-07-12 12:20:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2022-07-12 12:20:59,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:59,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-07-12 12:20:59,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-12 12:20:59,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-07-12 12:20:59,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2022-07-12 12:20:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2022-07-12 12:20:59,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2022-07-12 12:20:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-07-12 12:20:59,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2022-07-12 12:20:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:20:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 12:20:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2022-07-12 12:20:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-07-12 12:20:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:20:59,976 INFO L134 CoverageAnalysis]: Checked inductivity of 2786 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 2754 trivial. 0 not checked. [2022-07-12 12:20:59,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:20:59,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796056942] [2022-07-12 12:20:59,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796056942] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:20:59,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:20:59,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 12:20:59,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428165449] [2022-07-12 12:20:59,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:20:59,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 12:20:59,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:20:59,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 12:20:59,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-07-12 12:20:59,978 INFO L87 Difference]: Start difference. First operand 3638 states and 5131 transitions. Second operand has 12 states, 12 states have (on average 17.333333333333332) internal successors, (208), 4 states have internal predecessors, (208), 3 states have call successors, (64), 9 states have call predecessors, (64), 3 states have return successors, (63), 4 states have call predecessors, (63), 3 states have call successors, (63) [2022-07-12 12:21:04,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:21:04,973 INFO L93 Difference]: Finished difference Result 7201 states and 10431 transitions. [2022-07-12 12:21:04,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 12:21:04,974 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 17.333333333333332) internal successors, (208), 4 states have internal predecessors, (208), 3 states have call successors, (64), 9 states have call predecessors, (64), 3 states have return successors, (63), 4 states have call predecessors, (63), 3 states have call successors, (63) Word has length 486 [2022-07-12 12:21:04,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:21:04,991 INFO L225 Difference]: With dead ends: 7201 [2022-07-12 12:21:04,991 INFO L226 Difference]: Without dead ends: 4052 [2022-07-12 12:21:04,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2022-07-12 12:21:05,000 INFO L413 NwaCegarLoop]: 1436 mSDtfsCounter, 1502 mSDsluCounter, 4881 mSDsCounter, 0 mSdLazyCounter, 4480 mSolverCounterSat, 1570 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 6317 SdHoareTripleChecker+Invalid, 6050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1570 IncrementalHoareTripleChecker+Valid, 4480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-07-12 12:21:05,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1571 Valid, 6317 Invalid, 6050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1570 Valid, 4480 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-07-12 12:21:05,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4052 states. [2022-07-12 12:21:05,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4052 to 3643. [2022-07-12 12:21:05,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3643 states, 2661 states have (on average 1.3404735062006765) internal successors, (3567), 2687 states have internal predecessors, (3567), 746 states have call successors, (746), 217 states have call predecessors, (746), 235 states have return successors, (824), 759 states have call predecessors, (824), 745 states have call successors, (824) [2022-07-12 12:21:05,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3643 states to 3643 states and 5137 transitions. [2022-07-12 12:21:05,165 INFO L78 Accepts]: Start accepts. Automaton has 3643 states and 5137 transitions. Word has length 486 [2022-07-12 12:21:05,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:21:05,166 INFO L495 AbstractCegarLoop]: Abstraction has 3643 states and 5137 transitions. [2022-07-12 12:21:05,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 17.333333333333332) internal successors, (208), 4 states have internal predecessors, (208), 3 states have call successors, (64), 9 states have call predecessors, (64), 3 states have return successors, (63), 4 states have call predecessors, (63), 3 states have call successors, (63) [2022-07-12 12:21:05,166 INFO L276 IsEmpty]: Start isEmpty. Operand 3643 states and 5137 transitions. [2022-07-12 12:21:05,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2022-07-12 12:21:05,174 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:21:05,174 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:21:05,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-12 12:21:05,175 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:21:05,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:21:05,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1967867468, now seen corresponding path program 2 times [2022-07-12 12:21:05,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:21:05,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179143321] [2022-07-12 12:21:05,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:21:05,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:21:05,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:05,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:21:05,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:21:05,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:21:05,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:21:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:21:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:21:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:21:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 12:21:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 12:21:05,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 12:21:05,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 12:21:05,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:21:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 12:21:05,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 12:21:05,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 12:21:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 12:21:05,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 12:21:05,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 12:21:05,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 12:21:05,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 12:21:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 12:21:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 12:21:05,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 12:21:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 12:21:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-12 12:21:05,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 12:21:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-12 12:21:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-12 12:21:05,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 12:21:05,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-12 12:21:05,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-12 12:21:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-12 12:21:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-12 12:21:05,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-12 12:21:05,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-12 12:21:05,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-12 12:21:05,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-12 12:21:05,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-12 12:21:05,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-12 12:21:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:05,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-07-12 12:21:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-07-12 12:21:05,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-07-12 12:21:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-07-12 12:21:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:05,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-07-12 12:21:05,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2022-07-12 12:21:05,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:05,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-07-12 12:21:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-12 12:21:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-07-12 12:21:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2022-07-12 12:21:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2022-07-12 12:21:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2022-07-12 12:21:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-07-12 12:21:05,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:05,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2022-07-12 12:21:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:05,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 12:21:05,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-07-12 12:21:05,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-07-12 12:21:05,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:05,894 INFO L134 CoverageAnalysis]: Checked inductivity of 2798 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 2766 trivial. 0 not checked. [2022-07-12 12:21:05,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:21:05,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179143321] [2022-07-12 12:21:05,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179143321] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 12:21:05,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694318769] [2022-07-12 12:21:05,895 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 12:21:05,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 12:21:05,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:21:05,897 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 12:21:05,898 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 12:21:07,072 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-12 12:21:07,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 12:21:07,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 4599 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 12:21:07,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:21:07,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2798 backedges. 1248 proven. 0 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2022-07-12 12:21:07,160 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:21:07,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694318769] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:21:07,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 12:21:07,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14] total 16 [2022-07-12 12:21:07,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715847142] [2022-07-12 12:21:07,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:21:07,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:21:07,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:21:07,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:21:07,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-07-12 12:21:07,162 INFO L87 Difference]: Start difference. First operand 3643 states and 5137 transitions. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 2 states have call successors, (64), 2 states have call predecessors, (64), 3 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2022-07-12 12:21:07,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:21:07,333 INFO L93 Difference]: Finished difference Result 7238 states and 10222 transitions. [2022-07-12 12:21:07,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 12:21:07,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 2 states have call successors, (64), 2 states have call predecessors, (64), 3 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) Word has length 492 [2022-07-12 12:21:07,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:21:07,345 INFO L225 Difference]: With dead ends: 7238 [2022-07-12 12:21:07,345 INFO L226 Difference]: Without dead ends: 3658 [2022-07-12 12:21:07,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 631 GetRequests, 616 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-07-12 12:21:07,353 INFO L413 NwaCegarLoop]: 1585 mSDtfsCounter, 2 mSDsluCounter, 3166 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4751 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:21:07,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4751 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 12:21:07,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3658 states. [2022-07-12 12:21:07,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3658 to 3652. [2022-07-12 12:21:07,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 2667 states have (on average 1.3408323959505062) internal successors, (3576), 2696 states have internal predecessors, (3576), 746 states have call successors, (746), 217 states have call predecessors, (746), 238 states have return successors, (827), 759 states have call predecessors, (827), 745 states have call successors, (827) [2022-07-12 12:21:07,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 5149 transitions. [2022-07-12 12:21:07,490 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 5149 transitions. Word has length 492 [2022-07-12 12:21:07,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:21:07,491 INFO L495 AbstractCegarLoop]: Abstraction has 3652 states and 5149 transitions. [2022-07-12 12:21:07,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 2 states have call successors, (64), 2 states have call predecessors, (64), 3 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2022-07-12 12:21:07,491 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 5149 transitions. [2022-07-12 12:21:07,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2022-07-12 12:21:07,500 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:21:07,500 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:21:07,534 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 12:21:07,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 12:21:07,716 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:21:07,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:21:07,716 INFO L85 PathProgramCache]: Analyzing trace with hash -552781394, now seen corresponding path program 1 times [2022-07-12 12:21:07,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:21:07,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027281504] [2022-07-12 12:21:07,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:21:07,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:21:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:07,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:07,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:07,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:21:07,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:07,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:21:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:07,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:21:07,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:07,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:21:07,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:07,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:21:07,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:07,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:21:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:07,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:21:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 12:21:08,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 12:21:08,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 12:21:08,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 12:21:08,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:21:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 12:21:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 12:21:08,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 12:21:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 12:21:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 12:21:08,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 12:21:08,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 12:21:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 12:21:08,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 12:21:08,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 12:21:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 12:21:08,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 12:21:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-12 12:21:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-12 12:21:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 12:21:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-12 12:21:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-12 12:21:08,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-12 12:21:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-12 12:21:08,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 12:21:08,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-12 12:21:08,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-12 12:21:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-12 12:21:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-12 12:21:08,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-07-12 12:21:08,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-12 12:21:08,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-12 12:21:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-07-12 12:21:08,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-07-12 12:21:08,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-12 12:21:08,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-07-12 12:21:08,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:08,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2022-07-12 12:21:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-07-12 12:21:08,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-07-12 12:21:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-07-12 12:21:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-12 12:21:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-07-12 12:21:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-07-12 12:21:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-07-12 12:21:08,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-07-12 12:21:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:08,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-07-12 12:21:08,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 12:21:08,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-07-12 12:21:08,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2022-07-12 12:21:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:08,356 INFO L134 CoverageAnalysis]: Checked inductivity of 2799 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 2767 trivial. 0 not checked. [2022-07-12 12:21:08,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:21:08,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027281504] [2022-07-12 12:21:08,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027281504] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 12:21:08,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176372089] [2022-07-12 12:21:08,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:21:08,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 12:21:08,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:21:08,372 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 12:21:08,399 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 12:21:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:09,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 4614 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-12 12:21:09,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:21:09,638 INFO L134 CoverageAnalysis]: Checked inductivity of 2799 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 2733 trivial. 0 not checked. [2022-07-12 12:21:09,638 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:21:09,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176372089] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:21:09,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 12:21:09,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2022-07-12 12:21:09,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375150504] [2022-07-12 12:21:09,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:21:09,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 12:21:09,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:21:09,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 12:21:09,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-07-12 12:21:09,640 INFO L87 Difference]: Start difference. First operand 3652 states and 5149 transitions. Second operand has 6 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 3 states have call successors, (65), 2 states have call predecessors, (65), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-07-12 12:21:09,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:21:09,870 INFO L93 Difference]: Finished difference Result 7644 states and 10929 transitions. [2022-07-12 12:21:09,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 12:21:09,871 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 3 states have call successors, (65), 2 states have call predecessors, (65), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) Word has length 493 [2022-07-12 12:21:09,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:21:09,886 INFO L225 Difference]: With dead ends: 7644 [2022-07-12 12:21:09,886 INFO L226 Difference]: Without dead ends: 4481 [2022-07-12 12:21:09,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 632 GetRequests, 615 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-07-12 12:21:09,895 INFO L413 NwaCegarLoop]: 1967 mSDtfsCounter, 495 mSDsluCounter, 7248 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 9215 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:21:09,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 9215 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 12:21:09,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4481 states. [2022-07-12 12:21:10,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4481 to 3652. [2022-07-12 12:21:10,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 2667 states have (on average 1.3400824896887888) internal successors, (3574), 2696 states have internal predecessors, (3574), 746 states have call successors, (746), 217 states have call predecessors, (746), 238 states have return successors, (827), 759 states have call predecessors, (827), 745 states have call successors, (827) [2022-07-12 12:21:10,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 5147 transitions. [2022-07-12 12:21:10,052 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 5147 transitions. Word has length 493 [2022-07-12 12:21:10,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:21:10,052 INFO L495 AbstractCegarLoop]: Abstraction has 3652 states and 5147 transitions. [2022-07-12 12:21:10,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 3 states have call successors, (65), 2 states have call predecessors, (65), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-07-12 12:21:10,053 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 5147 transitions. [2022-07-12 12:21:10,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2022-07-12 12:21:10,060 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:21:10,061 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:21:10,092 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-07-12 12:21:10,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-12 12:21:10,276 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:21:10,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:21:10,276 INFO L85 PathProgramCache]: Analyzing trace with hash 114600496, now seen corresponding path program 1 times [2022-07-12 12:21:10,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:21:10,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255388722] [2022-07-12 12:21:10,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:21:10,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:21:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:21:10,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:21:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:21:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:21:10,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:21:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:21:10,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:21:10,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 12:21:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 12:21:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 12:21:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 12:21:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:21:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 12:21:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 12:21:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 12:21:10,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 12:21:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 12:21:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 12:21:10,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 12:21:10,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 12:21:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 12:21:10,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 12:21:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 12:21:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 12:21:10,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-12 12:21:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-12 12:21:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 12:21:10,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-12 12:21:10,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-12 12:21:10,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-12 12:21:10,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-12 12:21:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 12:21:10,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-12 12:21:10,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-12 12:21:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-12 12:21:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-12 12:21:10,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-07-12 12:21:10,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-12 12:21:10,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-12 12:21:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:10,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-07-12 12:21:10,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-07-12 12:21:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-12 12:21:10,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-07-12 12:21:10,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:10,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2022-07-12 12:21:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-07-12 12:21:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-07-12 12:21:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-07-12 12:21:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-12 12:21:10,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-07-12 12:21:10,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-07-12 12:21:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-07-12 12:21:10,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-07-12 12:21:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:10,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-07-12 12:21:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:10,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 12:21:10,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-07-12 12:21:10,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2022-07-12 12:21:10,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:10,860 INFO L134 CoverageAnalysis]: Checked inductivity of 2799 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 2767 trivial. 0 not checked. [2022-07-12 12:21:10,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:21:10,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255388722] [2022-07-12 12:21:10,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255388722] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 12:21:10,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937132369] [2022-07-12 12:21:10,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:21:10,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 12:21:10,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:21:10,862 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 12:21:10,864 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 12:21:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:12,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 4615 conjuncts, 56 conjunts are in the unsatisfiable core [2022-07-12 12:21:12,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:21:12,643 INFO L134 CoverageAnalysis]: Checked inductivity of 2799 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 2763 trivial. 0 not checked. [2022-07-12 12:21:12,643 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:21:12,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937132369] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:21:12,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 12:21:12,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14] total 23 [2022-07-12 12:21:12,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261035916] [2022-07-12 12:21:12,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:21:12,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 12:21:12,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:21:12,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 12:21:12,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2022-07-12 12:21:12,647 INFO L87 Difference]: Start difference. First operand 3652 states and 5147 transitions. Second operand has 11 states, 11 states have (on average 19.09090909090909) internal successors, (210), 9 states have internal predecessors, (210), 4 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (64), 6 states have call predecessors, (64), 4 states have call successors, (64) [2022-07-12 12:21:14,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:21:14,183 INFO L93 Difference]: Finished difference Result 8056 states and 11567 transitions. [2022-07-12 12:21:14,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-12 12:21:14,184 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 19.09090909090909) internal successors, (210), 9 states have internal predecessors, (210), 4 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (64), 6 states have call predecessors, (64), 4 states have call successors, (64) Word has length 493 [2022-07-12 12:21:14,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:21:14,201 INFO L225 Difference]: With dead ends: 8056 [2022-07-12 12:21:14,201 INFO L226 Difference]: Without dead ends: 4893 [2022-07-12 12:21:14,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 642 GetRequests, 611 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=955, Unknown=0, NotChecked=0, Total=1056 [2022-07-12 12:21:14,211 INFO L413 NwaCegarLoop]: 3149 mSDtfsCounter, 3072 mSDsluCounter, 27292 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3184 SdHoareTripleChecker+Valid, 30441 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 12:21:14,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3184 Valid, 30441 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 12:21:14,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4893 states. [2022-07-12 12:21:14,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4893 to 3652. [2022-07-12 12:21:14,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 2667 states have (on average 1.3397075365579303) internal successors, (3573), 2696 states have internal predecessors, (3573), 746 states have call successors, (746), 217 states have call predecessors, (746), 238 states have return successors, (827), 759 states have call predecessors, (827), 745 states have call successors, (827) [2022-07-12 12:21:14,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 5146 transitions. [2022-07-12 12:21:14,407 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 5146 transitions. Word has length 493 [2022-07-12 12:21:14,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:21:14,408 INFO L495 AbstractCegarLoop]: Abstraction has 3652 states and 5146 transitions. [2022-07-12 12:21:14,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 19.09090909090909) internal successors, (210), 9 states have internal predecessors, (210), 4 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (64), 6 states have call predecessors, (64), 4 states have call successors, (64) [2022-07-12 12:21:14,408 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 5146 transitions. [2022-07-12 12:21:14,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2022-07-12 12:21:14,416 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:21:14,416 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:21:14,450 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 12:21:14,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 12:21:14,631 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:21:14,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:21:14,631 INFO L85 PathProgramCache]: Analyzing trace with hash -2126322149, now seen corresponding path program 1 times [2022-07-12 12:21:14,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:21:14,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605067120] [2022-07-12 12:21:14,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:21:14,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:21:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:14,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:14,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:14,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:21:14,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:14,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:21:14,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:14,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:21:14,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:14,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:21:14,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:14,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:21:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:14,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:21:14,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:14,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:21:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:14,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 12:21:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:14,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 12:21:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:14,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 12:21:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:14,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 12:21:14,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:14,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:21:14,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:14,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 12:21:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:14,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 12:21:14,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:14,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 12:21:14,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:14,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 12:21:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:14,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 12:21:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:14,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 12:21:14,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:14,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 12:21:14,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:14,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 12:21:14,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:14,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 12:21:14,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:14,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 12:21:14,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:14,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 12:21:14,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:14,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 12:21:14,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-12 12:21:15,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-12 12:21:15,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 12:21:15,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-12 12:21:15,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-12 12:21:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-12 12:21:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-12 12:21:15,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 12:21:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-12 12:21:15,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-12 12:21:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-12 12:21:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-12 12:21:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-07-12 12:21:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-12 12:21:15,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:15,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-12 12:21:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:15,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:15,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:15,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-07-12 12:21:15,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-07-12 12:21:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-12 12:21:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-07-12 12:21:15,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:15,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2022-07-12 12:21:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-07-12 12:21:15,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:15,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-07-12 12:21:15,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-07-12 12:21:15,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-12 12:21:15,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-07-12 12:21:15,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-07-12 12:21:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-07-12 12:21:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-07-12 12:21:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:15,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-07-12 12:21:15,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:15,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:15,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 12:21:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-07-12 12:21:15,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-07-12 12:21:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:15,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2022-07-12 12:21:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2022-07-12 12:21:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2022-07-12 12:21:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:15,274 INFO L134 CoverageAnalysis]: Checked inductivity of 2829 backedges. 30 proven. 4 refuted. 0 times theorem prover too weak. 2795 trivial. 0 not checked. [2022-07-12 12:21:15,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:21:15,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605067120] [2022-07-12 12:21:15,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605067120] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 12:21:15,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543428977] [2022-07-12 12:21:15,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:21:15,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 12:21:15,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:21:15,276 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 12:21:15,302 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 12:21:17,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:17,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 4874 conjuncts, 127 conjunts are in the unsatisfiable core [2022-07-12 12:21:17,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:21:17,159 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 6 treesize of output 5 [2022-07-12 12:21:17,458 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-12 12:21:17,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 12:21:17,592 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-07-12 12:21:17,604 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-12 12:21:17,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 12:21:17,691 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-07-12 12:21:17,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 12:21:17,700 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-07-12 12:21:17,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 12:21:17,812 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-07-12 12:21:18,417 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 13 treesize of output 9 [2022-07-12 12:21:18,423 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 13 treesize of output 9 [2022-07-12 12:21:18,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2829 backedges. 110 proven. 6 refuted. 0 times theorem prover too weak. 2713 trivial. 0 not checked. [2022-07-12 12:21:18,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 12:21:18,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543428977] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 12:21:18,564 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 12:21:18,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 24] total 36 [2022-07-12 12:21:18,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632840875] [2022-07-12 12:21:18,565 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 12:21:18,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-07-12 12:21:18,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:21:18,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-07-12 12:21:18,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=1206, Unknown=0, NotChecked=0, Total=1332 [2022-07-12 12:21:18,567 INFO L87 Difference]: Start difference. First operand 3652 states and 5146 transitions. Second operand has 36 states, 35 states have (on average 9.6) internal successors, (336), 22 states have internal predecessors, (336), 8 states have call successors, (135), 12 states have call predecessors, (135), 13 states have return successors, (95), 14 states have call predecessors, (95), 8 states have call successors, (95) [2022-07-12 12:21:27,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:21:27,365 INFO L93 Difference]: Finished difference Result 7471 states and 10790 transitions. [2022-07-12 12:21:27,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-07-12 12:21:27,366 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 9.6) internal successors, (336), 22 states have internal predecessors, (336), 8 states have call successors, (135), 12 states have call predecessors, (135), 13 states have return successors, (95), 14 states have call predecessors, (95), 8 states have call successors, (95) Word has length 521 [2022-07-12 12:21:27,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:21:27,379 INFO L225 Difference]: With dead ends: 7471 [2022-07-12 12:21:27,380 INFO L226 Difference]: Without dead ends: 4308 [2022-07-12 12:21:27,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 776 GetRequests, 697 SyntacticMatches, 18 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1271 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=437, Invalid=3469, Unknown=0, NotChecked=0, Total=3906 [2022-07-12 12:21:27,388 INFO L413 NwaCegarLoop]: 1493 mSDtfsCounter, 2256 mSDsluCounter, 12748 mSDsCounter, 0 mSdLazyCounter, 11238 mSolverCounterSat, 2285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2266 SdHoareTripleChecker+Valid, 14241 SdHoareTripleChecker+Invalid, 16787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2285 IncrementalHoareTripleChecker+Valid, 11238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3264 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-07-12 12:21:27,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2266 Valid, 14241 Invalid, 16787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2285 Valid, 11238 Invalid, 0 Unknown, 3264 Unchecked, 7.8s Time] [2022-07-12 12:21:27,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4308 states. [2022-07-12 12:21:27,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4308 to 3761. [2022-07-12 12:21:27,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3761 states, 2747 states have (on average 1.33636694575901) internal successors, (3671), 2772 states have internal predecessors, (3671), 764 states have call successors, (764), 227 states have call predecessors, (764), 249 states have return successors, (817), 783 states have call predecessors, (817), 763 states have call successors, (817) [2022-07-12 12:21:27,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3761 states to 3761 states and 5252 transitions. [2022-07-12 12:21:27,567 INFO L78 Accepts]: Start accepts. Automaton has 3761 states and 5252 transitions. Word has length 521 [2022-07-12 12:21:27,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:21:27,568 INFO L495 AbstractCegarLoop]: Abstraction has 3761 states and 5252 transitions. [2022-07-12 12:21:27,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 9.6) internal successors, (336), 22 states have internal predecessors, (336), 8 states have call successors, (135), 12 states have call predecessors, (135), 13 states have return successors, (95), 14 states have call predecessors, (95), 8 states have call successors, (95) [2022-07-12 12:21:27,568 INFO L276 IsEmpty]: Start isEmpty. Operand 3761 states and 5252 transitions. [2022-07-12 12:21:27,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2022-07-12 12:21:27,576 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:21:27,576 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 7, 7, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:21:27,609 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-07-12 12:21:27,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 12:21:27,804 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:21:27,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:21:27,804 INFO L85 PathProgramCache]: Analyzing trace with hash 467890335, now seen corresponding path program 2 times [2022-07-12 12:21:27,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:21:27,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110744636] [2022-07-12 12:21:27,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:21:27,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:21:28,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:21:28,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:21:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:21:28,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:21:28,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:21:28,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:21:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:21:28,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 12:21:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 12:21:28,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 12:21:28,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 12:21:28,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:21:28,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 12:21:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 12:21:28,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 12:21:28,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 12:21:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 12:21:28,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 12:21:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 12:21:28,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 12:21:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 12:21:28,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 12:21:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 12:21:28,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 12:21:28,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-12 12:21:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-12 12:21:28,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 12:21:28,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-12 12:21:28,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-12 12:21:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-12 12:21:28,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-12 12:21:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 12:21:28,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-12 12:21:28,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-12 12:21:28,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-12 12:21:28,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-12 12:21:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-07-12 12:21:28,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-12 12:21:28,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:28,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-12 12:21:28,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:28,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-07-12 12:21:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-07-12 12:21:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-12 12:21:28,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-07-12 12:21:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:28,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2022-07-12 12:21:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-07-12 12:21:28,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:28,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-07-12 12:21:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-07-12 12:21:28,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-12 12:21:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-07-12 12:21:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-07-12 12:21:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-07-12 12:21:28,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-07-12 12:21:28,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:28,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-07-12 12:21:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 12:21:28,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 461 [2022-07-12 12:21:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2022-07-12 12:21:28,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2022-07-12 12:21:28,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2022-07-12 12:21:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2022-07-12 12:21:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:28,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2847 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2846 trivial. 0 not checked. [2022-07-12 12:21:28,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:21:28,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110744636] [2022-07-12 12:21:28,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110744636] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 12:21:28,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868636592] [2022-07-12 12:21:28,462 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 12:21:28,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 12:21:28,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:21:28,464 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 12:21:28,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-12 12:21:38,015 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-12 12:21:38,015 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 12:21:38,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 4900 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 12:21:38,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:21:38,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2847 backedges. 1248 proven. 1 refuted. 0 times theorem prover too weak. 1598 trivial. 0 not checked. [2022-07-12 12:21:38,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 12:21:38,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2847 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2846 trivial. 0 not checked. [2022-07-12 12:21:38,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868636592] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 12:21:38,477 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 12:21:38,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 18 [2022-07-12 12:21:38,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316082009] [2022-07-12 12:21:38,478 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 12:21:38,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-12 12:21:38,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:21:38,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-12 12:21:38,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-07-12 12:21:38,479 INFO L87 Difference]: Start difference. First operand 3761 states and 5252 transitions. Second operand has 18 states, 18 states have (on average 15.61111111111111) internal successors, (281), 10 states have internal predecessors, (281), 2 states have call successors, (164), 10 states have call predecessors, (164), 5 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2022-07-12 12:21:43,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:21:43,840 INFO L93 Difference]: Finished difference Result 7981 states and 11473 transitions. [2022-07-12 12:21:43,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-12 12:21:43,840 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 15.61111111111111) internal successors, (281), 10 states have internal predecessors, (281), 2 states have call successors, (164), 10 states have call predecessors, (164), 5 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) Word has length 527 [2022-07-12 12:21:43,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:21:43,852 INFO L225 Difference]: With dead ends: 7981 [2022-07-12 12:21:43,853 INFO L226 Difference]: Without dead ends: 4283 [2022-07-12 12:21:43,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1222 GetRequests, 1187 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=305, Invalid=955, Unknown=0, NotChecked=0, Total=1260 [2022-07-12 12:21:43,860 INFO L413 NwaCegarLoop]: 1438 mSDtfsCounter, 2134 mSDsluCounter, 4748 mSDsCounter, 0 mSdLazyCounter, 4016 mSolverCounterSat, 2178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2144 SdHoareTripleChecker+Valid, 6186 SdHoareTripleChecker+Invalid, 6194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2178 IncrementalHoareTripleChecker+Valid, 4016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-07-12 12:21:43,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2144 Valid, 6186 Invalid, 6194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2178 Valid, 4016 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-07-12 12:21:43,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4283 states. [2022-07-12 12:21:44,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4283 to 3778. [2022-07-12 12:21:44,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3778 states, 2764 states have (on average 1.3397250361794502) internal successors, (3703), 2787 states have internal predecessors, (3703), 764 states have call successors, (764), 229 states have call predecessors, (764), 249 states have return successors, (817), 783 states have call predecessors, (817), 763 states have call successors, (817) [2022-07-12 12:21:44,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3778 states to 3778 states and 5284 transitions. [2022-07-12 12:21:44,042 INFO L78 Accepts]: Start accepts. Automaton has 3778 states and 5284 transitions. Word has length 527 [2022-07-12 12:21:44,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:21:44,042 INFO L495 AbstractCegarLoop]: Abstraction has 3778 states and 5284 transitions. [2022-07-12 12:21:44,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 15.61111111111111) internal successors, (281), 10 states have internal predecessors, (281), 2 states have call successors, (164), 10 states have call predecessors, (164), 5 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2022-07-12 12:21:44,043 INFO L276 IsEmpty]: Start isEmpty. Operand 3778 states and 5284 transitions. [2022-07-12 12:21:44,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2022-07-12 12:21:44,049 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:21:44,049 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:21:44,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-12 12:21:44,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 12:21:44,263 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:21:44,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:21:44,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1034255933, now seen corresponding path program 3 times [2022-07-12 12:21:44,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:21:44,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992111908] [2022-07-12 12:21:44,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:21:44,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:21:44,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:21:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:21:45,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:21:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:21:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:21:45,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:21:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:21:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 12:21:45,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 12:21:45,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 12:21:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 12:21:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:21:45,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 12:21:45,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 12:21:45,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 12:21:45,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 12:21:45,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 12:21:45,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 12:21:45,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 12:21:45,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 12:21:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 12:21:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 12:21:45,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 12:21:45,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 12:21:45,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 12:21:45,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-12 12:21:45,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-12 12:21:45,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-12 12:21:45,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-12 12:21:45,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-12 12:21:45,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-12 12:21:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-12 12:21:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-07-12 12:21:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-12 12:21:45,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-12 12:21:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-12 12:21:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-12 12:21:45,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-07-12 12:21:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-12 12:21:45,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:45,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:45,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-12 12:21:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-12 12:21:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-07-12 12:21:45,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-12 12:21:45,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-12 12:21:45,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2022-07-12 12:21:45,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:45,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2022-07-12 12:21:45,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-07-12 12:21:45,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-07-12 12:21:45,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2022-07-12 12:21:45,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-07-12 12:21:45,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2022-07-12 12:21:45,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2022-07-12 12:21:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:45,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2022-07-12 12:21:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 12:21:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-07-12 12:21:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2022-07-12 12:21:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:45,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-07-12 12:21:45,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2022-07-12 12:21:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2022-07-12 12:21:45,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:45,563 INFO L134 CoverageAnalysis]: Checked inductivity of 2856 backedges. 38 proven. 2 refuted. 0 times theorem prover too weak. 2816 trivial. 0 not checked. [2022-07-12 12:21:45,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:21:45,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992111908] [2022-07-12 12:21:45,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992111908] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 12:21:45,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972175731] [2022-07-12 12:21:45,564 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-12 12:21:45,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 12:21:45,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:21:45,580 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 12:21:45,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-12 12:21:46,893 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-07-12 12:21:46,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 12:21:46,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 2352 conjuncts, 82 conjunts are in the unsatisfiable core [2022-07-12 12:21:46,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:21:47,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 12:21:47,240 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 102 [2022-07-12 12:21:47,249 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-07-12 12:21:47,249 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 1 case distinctions, treesize of input 121 treesize of output 102 [2022-07-12 12:21:47,276 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 117 treesize of output 87 [2022-07-12 12:21:47,281 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 93 treesize of output 63 [2022-07-12 12:21:47,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2856 backedges. 66 proven. 2 refuted. 0 times theorem prover too weak. 2788 trivial. 0 not checked. [2022-07-12 12:21:47,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 12:21:48,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2856 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2834 trivial. 0 not checked. [2022-07-12 12:21:48,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972175731] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 12:21:48,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-12 12:21:48,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [21, 15] total 29 [2022-07-12 12:21:48,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055888073] [2022-07-12 12:21:48,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:21:48,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 12:21:48,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:21:48,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 12:21:48,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=712, Unknown=0, NotChecked=0, Total=812 [2022-07-12 12:21:48,346 INFO L87 Difference]: Start difference. First operand 3778 states and 5284 transitions. Second operand has 9 states, 8 states have (on average 27.5) internal successors, (220), 8 states have internal predecessors, (220), 5 states have call successors, (67), 3 states have call predecessors, (67), 2 states have return successors, (66), 3 states have call predecessors, (66), 4 states have call successors, (66) [2022-07-12 12:21:57,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:21:57,537 INFO L93 Difference]: Finished difference Result 8715 states and 12207 transitions. [2022-07-12 12:21:57,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 12:21:57,537 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 27.5) internal successors, (220), 8 states have internal predecessors, (220), 5 states have call successors, (67), 3 states have call predecessors, (67), 2 states have return successors, (66), 3 states have call predecessors, (66), 4 states have call successors, (66) Word has length 530 [2022-07-12 12:21:57,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:21:57,550 INFO L225 Difference]: With dead ends: 8715 [2022-07-12 12:21:57,550 INFO L226 Difference]: Without dead ends: 5420 [2022-07-12 12:21:57,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1216 GetRequests, 1180 SyntacticMatches, 7 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=116, Invalid=814, Unknown=0, NotChecked=0, Total=930 [2022-07-12 12:21:57,558 INFO L413 NwaCegarLoop]: 1758 mSDtfsCounter, 5240 mSDsluCounter, 4113 mSDsCounter, 0 mSdLazyCounter, 4300 mSolverCounterSat, 1907 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5348 SdHoareTripleChecker+Valid, 5871 SdHoareTripleChecker+Invalid, 6207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1907 IncrementalHoareTripleChecker+Valid, 4300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-07-12 12:21:57,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5348 Valid, 5871 Invalid, 6207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1907 Valid, 4300 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-07-12 12:21:57,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5420 states. [2022-07-12 12:21:57,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5420 to 5400. [2022-07-12 12:21:57,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5400 states, 3951 states have (on average 1.3391546443938243) internal successors, (5291), 3985 states have internal predecessors, (5291), 1093 states have call successors, (1093), 330 states have call predecessors, (1093), 355 states have return successors, (1166), 1117 states have call predecessors, (1166), 1092 states have call successors, (1166) [2022-07-12 12:21:57,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5400 states to 5400 states and 7550 transitions. [2022-07-12 12:21:57,856 INFO L78 Accepts]: Start accepts. Automaton has 5400 states and 7550 transitions. Word has length 530 [2022-07-12 12:21:57,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:21:57,856 INFO L495 AbstractCegarLoop]: Abstraction has 5400 states and 7550 transitions. [2022-07-12 12:21:57,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 27.5) internal successors, (220), 8 states have internal predecessors, (220), 5 states have call successors, (67), 3 states have call predecessors, (67), 2 states have return successors, (66), 3 states have call predecessors, (66), 4 states have call successors, (66) [2022-07-12 12:21:57,857 INFO L276 IsEmpty]: Start isEmpty. Operand 5400 states and 7550 transitions. [2022-07-12 12:21:57,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2022-07-12 12:21:57,864 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:21:57,864 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:21:57,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-12 12:21:58,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-07-12 12:21:58,080 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:21:58,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:21:58,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1299136705, now seen corresponding path program 1 times [2022-07-12 12:21:58,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:21:58,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553445500] [2022-07-12 12:21:58,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:21:58,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:21:58,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:58,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:58,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:21:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:58,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:21:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:58,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:21:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:58,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:21:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:58,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:21:58,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:58,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:21:58,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:58,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:21:58,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:58,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 12:21:58,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:58,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 12:21:58,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:58,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 12:21:58,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:58,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 12:21:58,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:58,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:21:58,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:58,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 12:21:58,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:58,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 12:21:58,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:58,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 12:21:58,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:58,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 12:21:58,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:58,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 12:21:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:58,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 12:21:58,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:58,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 12:21:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:58,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 12:21:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:58,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 12:21:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:58,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 12:21:58,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:58,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 12:21:58,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:58,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 12:21:58,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:58,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 12:21:58,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:58,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-12 12:21:58,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:58,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-12 12:21:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-12 12:21:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-12 12:21:59,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-12 12:21:59,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-12 12:21:59,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-12 12:21:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-07-12 12:21:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-12 12:21:59,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-12 12:21:59,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-12 12:21:59,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-12 12:21:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-07-12 12:21:59,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:59,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-12 12:21:59,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-12 12:21:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-12 12:21:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-07-12 12:21:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-12 12:21:59,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-12 12:21:59,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2022-07-12 12:21:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2022-07-12 12:21:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-07-12 12:21:59,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-07-12 12:21:59,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2022-07-12 12:21:59,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-07-12 12:21:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2022-07-12 12:21:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2022-07-12 12:21:59,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:59,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2022-07-12 12:21:59,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:59,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:21:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 12:21:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-07-12 12:21:59,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2022-07-12 12:21:59,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:21:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-07-12 12:21:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2022-07-12 12:21:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2022-07-12 12:21:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:21:59,526 INFO L134 CoverageAnalysis]: Checked inductivity of 2856 backedges. 38 proven. 16 refuted. 0 times theorem prover too weak. 2802 trivial. 0 not checked. [2022-07-12 12:21:59,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:21:59,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553445500] [2022-07-12 12:21:59,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553445500] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 12:21:59,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181074706] [2022-07-12 12:21:59,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:21:59,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 12:21:59,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:21:59,528 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 12:21:59,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-12 12:22:01,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:01,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 4938 conjuncts, 142 conjunts are in the unsatisfiable core [2022-07-12 12:22:01,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:22:01,449 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 13 treesize of output 9 [2022-07-12 12:22:01,455 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 13 treesize of output 9 [2022-07-12 12:22:01,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 12:22:01,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 12:22:01,623 INFO L356 Elim1Store]: treesize reduction 70, result has 26.3 percent of original size [2022-07-12 12:22:01,623 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 161 treesize of output 116 [2022-07-12 12:22:01,685 INFO L356 Elim1Store]: treesize reduction 238, result has 19.3 percent of original size [2022-07-12 12:22:01,686 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 147 treesize of output 165 [2022-07-12 12:22:01,715 INFO L356 Elim1Store]: treesize reduction 24, result has 55.6 percent of original size [2022-07-12 12:22:01,715 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 182 treesize of output 173 [2022-07-12 12:22:01,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 12:22:01,745 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-12 12:22:01,746 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 154 treesize of output 184 [2022-07-12 12:22:01,956 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 30 treesize of output 12 [2022-07-12 12:22:02,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2856 backedges. 70 proven. 8 refuted. 0 times theorem prover too weak. 2778 trivial. 0 not checked. [2022-07-12 12:22:02,040 INFO L328 TraceCheckSpWp]: Computing backward predicates...