./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point_ldv-val-v0.8.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 4b03525ec5447375a01688a728ac5f10add5f84664db60bd75967c00682bdc6d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 02:15:49,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 02:15:49,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 02:15:49,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 02:15:49,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 02:15:49,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 02:15:49,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 02:15:49,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 02:15:49,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 02:15:49,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 02:15:49,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 02:15:49,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 02:15:49,762 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 02:15:49,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 02:15:49,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 02:15:49,770 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 02:15:49,771 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 02:15:49,772 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 02:15:49,773 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 02:15:49,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 02:15:49,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 02:15:49,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 02:15:49,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 02:15:49,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 02:15:49,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 02:15:49,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 02:15:49,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 02:15:49,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 02:15:49,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 02:15:49,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 02:15:49,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 02:15:49,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 02:15:49,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 02:15:49,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 02:15:49,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 02:15:49,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 02:15:49,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 02:15:49,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 02:15:49,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 02:15:49,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 02:15:49,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 02:15:49,793 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 02:15:49,819 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 02:15:49,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 02:15:49,820 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 02:15:49,820 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 02:15:49,821 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 02:15:49,821 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 02:15:49,822 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 02:15:49,822 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 02:15:49,822 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 02:15:49,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 02:15:49,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 02:15:49,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 02:15:49,824 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 02:15:49,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 02:15:49,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 02:15:49,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 02:15:49,824 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 02:15:49,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 02:15:49,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 02:15:49,825 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 02:15:49,825 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 02:15:49,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 02:15:49,825 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 02:15:49,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 02:15:49,826 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 02:15:49,826 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 02:15:49,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 02:15:49,826 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 02:15:49,826 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 02:15:49,826 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 02:15:49,827 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 02:15:49,827 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b03525ec5447375a01688a728ac5f10add5f84664db60bd75967c00682bdc6d [2021-11-17 02:15:50,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 02:15:50,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 02:15:50,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 02:15:50,066 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 02:15:50,066 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 02:15:50,067 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-17 02:15:50,111 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68c66b351/3ef992e18f3d4061b1a1e1282a3d6dfe/FLAG8711fcf78 [2021-11-17 02:15:50,708 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 02:15:50,712 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-17 02:15:50,751 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68c66b351/3ef992e18f3d4061b1a1e1282a3d6dfe/FLAG8711fcf78 [2021-11-17 02:15:50,853 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68c66b351/3ef992e18f3d4061b1a1e1282a3d6dfe [2021-11-17 02:15:50,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 02:15:50,857 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 02:15:50,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 02:15:50,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 02:15:50,863 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 02:15:50,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 02:15:50" (1/1) ... [2021-11-17 02:15:50,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d1955b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:15:50, skipping insertion in model container [2021-11-17 02:15:50,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 02:15:50" (1/1) ... [2021-11-17 02:15:50,871 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 02:15:50,960 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 02:15:52,192 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-validator-v0.8/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point_ldv-val-v0.8.cil.out.i[212825,212838] [2021-11-17 02:15:52,307 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 02:15:52,329 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 02:15:52,542 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-validator-v0.8/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point_ldv-val-v0.8.cil.out.i[212825,212838] [2021-11-17 02:15:52,557 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 02:15:52,626 INFO L208 MainTranslator]: Completed translation [2021-11-17 02:15:52,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:15:52 WrapperNode [2021-11-17 02:15:52,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 02:15:52,630 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 02:15:52,630 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 02:15:52,630 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 02:15:52,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:15:52" (1/1) ... [2021-11-17 02:15:52,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:15:52" (1/1) ... [2021-11-17 02:15:52,846 INFO L137 Inliner]: procedures = 272, calls = 2460, calls flagged for inlining = 116, calls inlined = 95, statements flattened = 3921 [2021-11-17 02:15:52,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 02:15:52,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 02:15:52,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 02:15:52,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 02:15:52,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:15:52" (1/1) ... [2021-11-17 02:15:52,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:15:52" (1/1) ... [2021-11-17 02:15:52,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:15:52" (1/1) ... [2021-11-17 02:15:52,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:15:52" (1/1) ... [2021-11-17 02:15:52,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:15:52" (1/1) ... [2021-11-17 02:15:52,985 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:15:52" (1/1) ... [2021-11-17 02:15:53,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:15:52" (1/1) ... [2021-11-17 02:15:53,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 02:15:53,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 02:15:53,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 02:15:53,025 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 02:15:53,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:15:52" (1/1) ... [2021-11-17 02:15:53,031 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 02:15:53,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 02:15:53,048 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 02:15:53,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 02:15:53,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-17 02:15:53,088 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-17 02:15:53,089 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-11-17 02:15:53,089 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-11-17 02:15:53,089 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-11-17 02:15:53,089 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-11-17 02:15:53,089 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-17 02:15:53,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 02:15:53,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 02:15:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 02:15:53,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 02:15:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 02:15:53,090 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 02:15:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2021-11-17 02:15:53,090 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2021-11-17 02:15:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-17 02:15:53,090 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-17 02:15:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2021-11-17 02:15:53,091 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2021-11-17 02:15:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 02:15:53,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 02:15:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2021-11-17 02:15:53,091 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2021-11-17 02:15:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2021-11-17 02:15:53,091 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2021-11-17 02:15:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-17 02:15:53,092 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-17 02:15:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 02:15:53,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 02:15:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure imon_disconnect [2021-11-17 02:15:53,092 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_disconnect [2021-11-17 02:15:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2021-11-17 02:15:53,093 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2021-11-17 02:15:53,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_imon_context [2021-11-17 02:15:53,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_imon_context [2021-11-17 02:15:53,093 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 02:15:53,093 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 02:15:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-17 02:15:53,094 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-17 02:15:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 02:15:53,094 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 02:15:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_driver_lock [2021-11-17 02:15:53,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_driver_lock [2021-11-17 02:15:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 02:15:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2021-11-17 02:15:53,095 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2021-11-17 02:15:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 02:15:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2021-11-17 02:15:53,095 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2021-11-17 02:15:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2021-11-17 02:15:53,096 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2021-11-17 02:15:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 02:15:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 02:15:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-17 02:15:53,096 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-17 02:15:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-17 02:15:53,097 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-17 02:15:53,098 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-17 02:15:53,098 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-17 02:15:53,098 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2021-11-17 02:15:53,099 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2021-11-17 02:15:53,099 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2021-11-17 02:15:53,099 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2021-11-17 02:15:53,099 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-11-17 02:15:53,100 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-11-17 02:15:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 02:15:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2021-11-17 02:15:53,100 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2021-11-17 02:15:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-17 02:15:53,101 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-17 02:15:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 02:15:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2021-11-17 02:15:53,101 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2021-11-17 02:15:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2021-11-17 02:15:53,101 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2021-11-17 02:15:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 02:15:53,102 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-17 02:15:53,102 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-17 02:15:53,102 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2021-11-17 02:15:53,103 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2021-11-17 02:15:53,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 02:15:53,103 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 02:15:53,103 INFO L130 BoogieDeclarations]: Found specification of procedure lcd_write [2021-11-17 02:15:53,103 INFO L138 BoogieDeclarations]: Found implementation of procedure lcd_write [2021-11-17 02:15:53,103 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-17 02:15:53,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-17 02:15:53,103 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-17 02:15:53,103 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-17 02:15:53,103 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2021-11-17 02:15:53,103 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2021-11-17 02:15:53,103 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 02:15:53,103 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 02:15:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 02:15:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2021-11-17 02:15:53,104 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2021-11-17 02:15:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2021-11-17 02:15:53,104 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2021-11-17 02:15:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2021-11-17 02:15:53,104 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2021-11-17 02:15:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 02:15:53,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 02:15:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-17 02:15:53,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-17 02:15:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure free_imon_context [2021-11-17 02:15:53,104 INFO L138 BoogieDeclarations]: Found implementation of procedure free_imon_context [2021-11-17 02:15:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 02:15:53,105 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2021-11-17 02:15:53,105 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2021-11-17 02:15:53,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-17 02:15:53,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-17 02:15:53,105 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2021-11-17 02:15:53,105 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2021-11-17 02:15:53,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_imon_context [2021-11-17 02:15:53,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_imon_context [2021-11-17 02:15:53,105 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-17 02:15:53,105 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-17 02:15:53,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 02:15:53,105 INFO L130 BoogieDeclarations]: Found specification of procedure vfd_write [2021-11-17 02:15:53,106 INFO L138 BoogieDeclarations]: Found implementation of procedure vfd_write [2021-11-17 02:15:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 02:15:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2021-11-17 02:15:53,106 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2021-11-17 02:15:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-17 02:15:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2021-11-17 02:15:53,106 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2021-11-17 02:15:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure display_close [2021-11-17 02:15:53,106 INFO L138 BoogieDeclarations]: Found implementation of procedure display_close [2021-11-17 02:15:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2021-11-17 02:15:53,106 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2021-11-17 02:15:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-11-17 02:15:53,106 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-11-17 02:15:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_driver_lock [2021-11-17 02:15:53,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_driver_lock [2021-11-17 02:15:53,107 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2021-11-17 02:15:53,107 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2021-11-17 02:15:53,107 INFO L130 BoogieDeclarations]: Found specification of procedure imon_find_endpoints [2021-11-17 02:15:53,107 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_find_endpoints [2021-11-17 02:15:53,107 INFO L130 BoogieDeclarations]: Found specification of procedure display_open [2021-11-17 02:15:53,107 INFO L138 BoogieDeclarations]: Found implementation of procedure display_open [2021-11-17 02:15:53,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 02:15:53,107 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-11-17 02:15:53,107 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-11-17 02:15:53,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 02:15:53,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 02:15:53,586 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 02:15:53,590 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 02:15:53,947 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 02:15:57,075 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 02:15:57,095 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 02:15:57,095 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-17 02:15:57,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 02:15:57 BoogieIcfgContainer [2021-11-17 02:15:57,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 02:15:57,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 02:15:57,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 02:15:57,103 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 02:15:57,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 02:15:50" (1/3) ... [2021-11-17 02:15:57,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f3ba971 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 02:15:57, skipping insertion in model container [2021-11-17 02:15:57,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:15:52" (2/3) ... [2021-11-17 02:15:57,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f3ba971 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 02:15:57, skipping insertion in model container [2021-11-17 02:15:57,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 02:15:57" (3/3) ... [2021-11-17 02:15:57,105 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-17 02:15:57,109 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 02:15:57,109 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 02:15:57,157 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 02:15:57,165 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 02:15:57,165 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 02:15:57,210 INFO L276 IsEmpty]: Start isEmpty. Operand has 1122 states, 777 states have (on average 1.3474903474903475) internal successors, (1047), 799 states have internal predecessors, (1047), 281 states have call successors, (281), 63 states have call predecessors, (281), 62 states have return successors, (274), 273 states have call predecessors, (274), 274 states have call successors, (274) [2021-11-17 02:15:57,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-17 02:15:57,227 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:15:57,228 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:15:57,229 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:15:57,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:15:57,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1817654723, now seen corresponding path program 1 times [2021-11-17 02:15:57,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:15:57,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117817685] [2021-11-17 02:15:57,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:15:57,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:15:57,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:15:57,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:15:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:15:57,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:15:57,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:15:57,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:15:57,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:15:57,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:15:57,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:15:57,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:15:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:15:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:15:57,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:15:57,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:15:57,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:15:57,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:15:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:15:57,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:15:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:15:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:15:57,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:15:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:15:57,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:15:57,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:15:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:15:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:15:57,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:15:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:15:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:15:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 02:15:57,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 02:15:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 02:15:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 02:15:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:57,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 02:15:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:58,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 02:15:58,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:58,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 02:15:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:15:58,020 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-11-17 02:15:58,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:15:58,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117817685] [2021-11-17 02:15:58,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117817685] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:15:58,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:15:58,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 02:15:58,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714650656] [2021-11-17 02:15:58,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:15:58,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 02:15:58,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:15:58,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 02:15:58,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 02:15:58,048 INFO L87 Difference]: Start difference. First operand has 1122 states, 777 states have (on average 1.3474903474903475) internal successors, (1047), 799 states have internal predecessors, (1047), 281 states have call successors, (281), 63 states have call predecessors, (281), 62 states have return successors, (274), 273 states have call predecessors, (274), 274 states have call successors, (274) Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 02:16:03,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:16:03,499 INFO L93 Difference]: Finished difference Result 2310 states and 3450 transitions. [2021-11-17 02:16:03,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 02:16:03,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 223 [2021-11-17 02:16:03,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:16:03,522 INFO L225 Difference]: With dead ends: 2310 [2021-11-17 02:16:03,523 INFO L226 Difference]: Without dead ends: 1179 [2021-11-17 02:16:03,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-17 02:16:03,540 INFO L933 BasicCegarLoop]: 1512 mSDtfsCounter, 476 mSDsluCounter, 1456 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 683 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 2968 SdHoareTripleChecker+Invalid, 1582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 683 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-11-17 02:16:03,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [510 Valid, 2968 Invalid, 1582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [683 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2021-11-17 02:16:03,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2021-11-17 02:16:03,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 1108. [2021-11-17 02:16:03,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 772 states have (on average 1.3354922279792747) internal successors, (1031), 785 states have internal predecessors, (1031), 274 states have call successors, (274), 62 states have call predecessors, (274), 61 states have return successors, (267), 266 states have call predecessors, (267), 267 states have call successors, (267) [2021-11-17 02:16:03,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1572 transitions. [2021-11-17 02:16:03,674 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1572 transitions. Word has length 223 [2021-11-17 02:16:03,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:16:03,675 INFO L470 AbstractCegarLoop]: Abstraction has 1108 states and 1572 transitions. [2021-11-17 02:16:03,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 02:16:03,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1572 transitions. [2021-11-17 02:16:03,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-17 02:16:03,681 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:16:03,681 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:16:03,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 02:16:03,682 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:16:03,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:16:03,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1329529621, now seen corresponding path program 1 times [2021-11-17 02:16:03,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:16:03,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321029955] [2021-11-17 02:16:03,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:16:03,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:16:03,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:03,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:16:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:03,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:03,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:03,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:16:03,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:03,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:03,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:03,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:03,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:03,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:16:03,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:03,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:03,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:03,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:16:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:03,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:03,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:03,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:03,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:16:03,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:03,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:04,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:04,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:04,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:16:04,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:04,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:04,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:04,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:04,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:04,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:16:04,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:04,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:04,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:04,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:04,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:16:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:04,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:04,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:04,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:04,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:16:04,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:04,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:04,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:04,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:04,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:04,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:16:04,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:04,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:16:04,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:04,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 02:16:04,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:04,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 02:16:04,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:04,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 02:16:04,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:04,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 02:16:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:04,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 02:16:04,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:04,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 02:16:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:04,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 02:16:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:04,139 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-11-17 02:16:04,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:16:04,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321029955] [2021-11-17 02:16:04,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321029955] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:16:04,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:16:04,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 02:16:04,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093811729] [2021-11-17 02:16:04,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:16:04,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 02:16:04,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:16:04,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 02:16:04,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 02:16:04,146 INFO L87 Difference]: Start difference. First operand 1108 states and 1572 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-17 02:16:12,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:16:12,903 INFO L93 Difference]: Finished difference Result 3305 states and 4749 transitions. [2021-11-17 02:16:12,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 02:16:12,904 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 223 [2021-11-17 02:16:12,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:16:12,914 INFO L225 Difference]: With dead ends: 3305 [2021-11-17 02:16:12,914 INFO L226 Difference]: Without dead ends: 2241 [2021-11-17 02:16:12,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 02:16:12,918 INFO L933 BasicCegarLoop]: 1688 mSDtfsCounter, 2021 mSDsluCounter, 3469 mSDsCounter, 0 mSdLazyCounter, 2154 mSolverCounterSat, 1322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2245 SdHoareTripleChecker+Valid, 5157 SdHoareTripleChecker+Invalid, 3476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1322 IncrementalHoareTripleChecker+Valid, 2154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2021-11-17 02:16:12,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2245 Valid, 5157 Invalid, 3476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1322 Valid, 2154 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2021-11-17 02:16:12,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2021-11-17 02:16:12,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 2085. [2021-11-17 02:16:12,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2085 states, 1459 states have (on average 1.3372172721041808) internal successors, (1951), 1480 states have internal predecessors, (1951), 505 states have call successors, (505), 121 states have call predecessors, (505), 120 states have return successors, (498), 495 states have call predecessors, (498), 498 states have call successors, (498) [2021-11-17 02:16:12,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2085 states to 2085 states and 2954 transitions. [2021-11-17 02:16:12,990 INFO L78 Accepts]: Start accepts. Automaton has 2085 states and 2954 transitions. Word has length 223 [2021-11-17 02:16:12,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:16:12,991 INFO L470 AbstractCegarLoop]: Abstraction has 2085 states and 2954 transitions. [2021-11-17 02:16:12,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-17 02:16:12,991 INFO L276 IsEmpty]: Start isEmpty. Operand 2085 states and 2954 transitions. [2021-11-17 02:16:12,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-11-17 02:16:12,993 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:16:12,993 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:16:12,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 02:16:12,993 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:16:12,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:16:12,994 INFO L85 PathProgramCache]: Analyzing trace with hash 36637550, now seen corresponding path program 1 times [2021-11-17 02:16:12,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:16:12,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670280792] [2021-11-17 02:16:12,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:16:12,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:16:13,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:16:13,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:13,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:16:13,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:13,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:13,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:16:13,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:13,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:13,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:16:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:13,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:13,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:16:13,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:13,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:16:13,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:13,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:13,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:16:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:16:13,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:13,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:16:13,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:13,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:13,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:16:13,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:16:13,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 02:16:13,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 02:16:13,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 02:16:13,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 02:16:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 02:16:13,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 02:16:13,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 02:16:13,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:13,399 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-11-17 02:16:13,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:16:13,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670280792] [2021-11-17 02:16:13,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670280792] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:16:13,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:16:13,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 02:16:13,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422893543] [2021-11-17 02:16:13,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:16:13,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 02:16:13,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:16:13,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 02:16:13,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 02:16:13,408 INFO L87 Difference]: Start difference. First operand 2085 states and 2954 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-17 02:16:19,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:16:19,940 INFO L93 Difference]: Finished difference Result 5318 states and 7612 transitions. [2021-11-17 02:16:19,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 02:16:19,940 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 224 [2021-11-17 02:16:19,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:16:19,953 INFO L225 Difference]: With dead ends: 5318 [2021-11-17 02:16:19,953 INFO L226 Difference]: Without dead ends: 3277 [2021-11-17 02:16:19,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 02:16:19,958 INFO L933 BasicCegarLoop]: 1684 mSDtfsCounter, 1444 mSDsluCounter, 2831 mSDsCounter, 0 mSdLazyCounter, 1438 mSolverCounterSat, 1054 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1566 SdHoareTripleChecker+Valid, 4515 SdHoareTripleChecker+Invalid, 2492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1054 IncrementalHoareTripleChecker+Valid, 1438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-17 02:16:19,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1566 Valid, 4515 Invalid, 2492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1054 Valid, 1438 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2021-11-17 02:16:19,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3277 states. [2021-11-17 02:16:20,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3277 to 3025. [2021-11-17 02:16:20,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3025 states, 2132 states have (on average 1.344746716697936) internal successors, (2867), 2153 states have internal predecessors, (2867), 707 states have call successors, (707), 186 states have call predecessors, (707), 185 states have return successors, (700), 697 states have call predecessors, (700), 700 states have call successors, (700) [2021-11-17 02:16:20,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3025 states to 3025 states and 4274 transitions. [2021-11-17 02:16:20,047 INFO L78 Accepts]: Start accepts. Automaton has 3025 states and 4274 transitions. Word has length 224 [2021-11-17 02:16:20,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:16:20,048 INFO L470 AbstractCegarLoop]: Abstraction has 3025 states and 4274 transitions. [2021-11-17 02:16:20,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-17 02:16:20,049 INFO L276 IsEmpty]: Start isEmpty. Operand 3025 states and 4274 transitions. [2021-11-17 02:16:20,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-11-17 02:16:20,052 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:16:20,052 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:16:20,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 02:16:20,052 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:16:20,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:16:20,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1833405017, now seen corresponding path program 1 times [2021-11-17 02:16:20,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:16:20,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892453669] [2021-11-17 02:16:20,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:16:20,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:16:20,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:16:20,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:20,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:16:20,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:20,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:20,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:16:20,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:20,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:16:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:20,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:16:20,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:16:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:20,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:16:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:16:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:16:20,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:20,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:16:20,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:16:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 02:16:20,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 02:16:20,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 02:16:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 02:16:20,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 02:16:20,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 02:16:20,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 02:16:20,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:20,417 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-11-17 02:16:20,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:16:20,418 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892453669] [2021-11-17 02:16:20,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892453669] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:16:20,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:16:20,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 02:16:20,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209308984] [2021-11-17 02:16:20,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:16:20,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 02:16:20,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:16:20,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 02:16:20,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 02:16:20,420 INFO L87 Difference]: Start difference. First operand 3025 states and 4274 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-17 02:16:29,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:16:29,231 INFO L93 Difference]: Finished difference Result 9371 states and 13432 transitions. [2021-11-17 02:16:29,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 02:16:29,232 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 225 [2021-11-17 02:16:29,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:16:29,264 INFO L225 Difference]: With dead ends: 9371 [2021-11-17 02:16:29,264 INFO L226 Difference]: Without dead ends: 6400 [2021-11-17 02:16:29,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 02:16:29,277 INFO L933 BasicCegarLoop]: 1804 mSDtfsCounter, 1995 mSDsluCounter, 3702 mSDsCounter, 0 mSdLazyCounter, 2272 mSolverCounterSat, 1294 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2216 SdHoareTripleChecker+Valid, 5506 SdHoareTripleChecker+Invalid, 3566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1294 IncrementalHoareTripleChecker+Valid, 2272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2021-11-17 02:16:29,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2216 Valid, 5506 Invalid, 3566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1294 Valid, 2272 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2021-11-17 02:16:29,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6400 states. [2021-11-17 02:16:29,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6400 to 5924. [2021-11-17 02:16:29,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5924 states, 4185 states have (on average 1.3464755077658304) internal successors, (5635), 4220 states have internal predecessors, (5635), 1371 states have call successors, (1371), 368 states have call predecessors, (1371), 367 states have return successors, (1364), 1359 states have call predecessors, (1364), 1364 states have call successors, (1364) [2021-11-17 02:16:29,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5924 states to 5924 states and 8370 transitions. [2021-11-17 02:16:29,488 INFO L78 Accepts]: Start accepts. Automaton has 5924 states and 8370 transitions. Word has length 225 [2021-11-17 02:16:29,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:16:29,489 INFO L470 AbstractCegarLoop]: Abstraction has 5924 states and 8370 transitions. [2021-11-17 02:16:29,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-17 02:16:29,489 INFO L276 IsEmpty]: Start isEmpty. Operand 5924 states and 8370 transitions. [2021-11-17 02:16:29,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-11-17 02:16:29,491 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:16:29,491 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:16:29,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 02:16:29,491 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:16:29,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:16:29,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1824221697, now seen corresponding path program 1 times [2021-11-17 02:16:29,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:16:29,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70073800] [2021-11-17 02:16:29,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:16:29,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:16:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:16:29,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:29,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:29,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:16:29,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:29,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:16:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:29,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:29,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:16:29,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:29,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:29,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:16:29,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:29,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:29,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:16:29,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:29,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:29,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:16:29,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:29,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:29,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:16:29,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:29,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:29,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:16:29,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:29,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:29,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:16:29,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:16:29,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 02:16:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 02:16:29,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 02:16:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 02:16:29,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 02:16:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 02:16:29,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 02:16:29,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:29,828 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-11-17 02:16:29,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:16:29,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70073800] [2021-11-17 02:16:29,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70073800] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:16:29,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:16:29,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 02:16:29,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980303943] [2021-11-17 02:16:29,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:16:29,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 02:16:29,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:16:29,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 02:16:29,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 02:16:29,831 INFO L87 Difference]: Start difference. First operand 5924 states and 8370 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-17 02:16:39,118 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:16:40,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:16:40,660 INFO L93 Difference]: Finished difference Result 17672 states and 25250 transitions. [2021-11-17 02:16:40,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 02:16:40,661 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 229 [2021-11-17 02:16:40,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:16:40,711 INFO L225 Difference]: With dead ends: 17672 [2021-11-17 02:16:40,711 INFO L226 Difference]: Without dead ends: 11802 [2021-11-17 02:16:40,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 02:16:40,728 INFO L933 BasicCegarLoop]: 1859 mSDtfsCounter, 1941 mSDsluCounter, 3737 mSDsCounter, 0 mSdLazyCounter, 2220 mSolverCounterSat, 1202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2167 SdHoareTripleChecker+Valid, 5596 SdHoareTripleChecker+Invalid, 3422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1202 IncrementalHoareTripleChecker+Valid, 2220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2021-11-17 02:16:40,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2167 Valid, 5596 Invalid, 3422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1202 Valid, 2220 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2021-11-17 02:16:40,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11802 states. [2021-11-17 02:16:41,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11802 to 11004. [2021-11-17 02:16:41,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11004 states, 7811 states have (on average 1.345410318781206) internal successors, (10509), 7874 states have internal predecessors, (10509), 2501 states have call successors, (2501), 692 states have call predecessors, (2501), 691 states have return successors, (2494), 2485 states have call predecessors, (2494), 2494 states have call successors, (2494) [2021-11-17 02:16:41,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11004 states to 11004 states and 15504 transitions. [2021-11-17 02:16:41,081 INFO L78 Accepts]: Start accepts. Automaton has 11004 states and 15504 transitions. Word has length 229 [2021-11-17 02:16:41,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:16:41,081 INFO L470 AbstractCegarLoop]: Abstraction has 11004 states and 15504 transitions. [2021-11-17 02:16:41,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-17 02:16:41,084 INFO L276 IsEmpty]: Start isEmpty. Operand 11004 states and 15504 transitions. [2021-11-17 02:16:41,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-11-17 02:16:41,086 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:16:41,086 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:16:41,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 02:16:41,087 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:16:41,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:16:41,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1358278430, now seen corresponding path program 1 times [2021-11-17 02:16:41,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:16:41,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686343192] [2021-11-17 02:16:41,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:16:41,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:16:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:16:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:16:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:41,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:16:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:41,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:16:41,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:41,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:41,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:16:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:41,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:16:41,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:41,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:41,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:16:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:41,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:41,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:16:41,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:41,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:16:41,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:41,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:41,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:16:41,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:16:41,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 02:16:41,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 02:16:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 02:16:41,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 02:16:41,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 02:16:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 02:16:41,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 02:16:41,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 02:16:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:41,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:41,465 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-11-17 02:16:41,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:16:41,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686343192] [2021-11-17 02:16:41,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686343192] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:16:41,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:16:41,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 02:16:41,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772812715] [2021-11-17 02:16:41,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:16:41,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 02:16:41,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:16:41,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 02:16:41,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-17 02:16:41,467 INFO L87 Difference]: Start difference. First operand 11004 states and 15504 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 02:16:44,119 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:16:51,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:16:51,970 INFO L93 Difference]: Finished difference Result 33800 states and 48062 transitions. [2021-11-17 02:16:51,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 02:16:51,973 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 237 [2021-11-17 02:16:51,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:16:52,065 INFO L225 Difference]: With dead ends: 33800 [2021-11-17 02:16:52,065 INFO L226 Difference]: Without dead ends: 22850 [2021-11-17 02:16:52,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-17 02:16:52,102 INFO L933 BasicCegarLoop]: 1913 mSDtfsCounter, 2090 mSDsluCounter, 3997 mSDsCounter, 0 mSdLazyCounter, 2265 mSolverCounterSat, 1346 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2338 SdHoareTripleChecker+Valid, 5910 SdHoareTripleChecker+Invalid, 3611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1346 IncrementalHoareTripleChecker+Valid, 2265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2021-11-17 02:16:52,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2338 Valid, 5910 Invalid, 3611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1346 Valid, 2265 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2021-11-17 02:16:52,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22850 states. [2021-11-17 02:16:52,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22850 to 21158. [2021-11-17 02:16:52,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21158 states, 15069 states have (on average 1.3450793018780278) internal successors, (20269), 15190 states have internal predecessors, (20269), 4725 states have call successors, (4725), 1364 states have call predecessors, (4725), 1363 states have return successors, (4718), 4699 states have call predecessors, (4718), 4718 states have call successors, (4718) [2021-11-17 02:16:52,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21158 states to 21158 states and 29712 transitions. [2021-11-17 02:16:52,805 INFO L78 Accepts]: Start accepts. Automaton has 21158 states and 29712 transitions. Word has length 237 [2021-11-17 02:16:52,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:16:52,806 INFO L470 AbstractCegarLoop]: Abstraction has 21158 states and 29712 transitions. [2021-11-17 02:16:52,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 02:16:52,806 INFO L276 IsEmpty]: Start isEmpty. Operand 21158 states and 29712 transitions. [2021-11-17 02:16:52,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-11-17 02:16:52,809 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:16:52,809 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:16:52,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 02:16:52,809 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:16:52,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:16:52,809 INFO L85 PathProgramCache]: Analyzing trace with hash -353313936, now seen corresponding path program 1 times [2021-11-17 02:16:52,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:16:52,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228247469] [2021-11-17 02:16:52,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:16:52,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:16:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:52,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:16:52,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:52,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:52,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:52,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:16:52,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:52,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:52,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:52,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:52,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:52,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:16:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:52,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:52,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:52,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:16:52,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:52,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:52,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:52,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:16:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:52,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:52,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:52,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:16:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:52,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:52,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:52,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:52,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:16:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:53,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:53,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:53,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:53,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:16:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:53,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:53,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:53,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:53,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:16:53,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:53,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:53,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:16:53,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:53,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:16:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:53,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:16:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:53,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 02:16:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:53,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 02:16:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:53,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 02:16:53,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:53,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 02:16:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:53,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 02:16:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:53,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 02:16:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:53,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 02:16:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:53,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 02:16:53,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:53,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:16:53,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:16:53,104 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-11-17 02:16:53,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:16:53,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228247469] [2021-11-17 02:16:53,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228247469] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:16:53,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:16:53,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 02:16:53,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280272698] [2021-11-17 02:16:53,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:16:53,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 02:16:53,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:16:53,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 02:16:53,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-17 02:16:53,106 INFO L87 Difference]: Start difference. First operand 21158 states and 29712 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 02:16:56,202 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:16:59,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:16:59,698 INFO L93 Difference]: Finished difference Result 64224 states and 90693 transitions. [2021-11-17 02:16:59,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 02:16:59,699 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 237 [2021-11-17 02:16:59,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:16:59,857 INFO L225 Difference]: With dead ends: 64224 [2021-11-17 02:16:59,857 INFO L226 Difference]: Without dead ends: 43120 [2021-11-17 02:16:59,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-17 02:16:59,912 INFO L933 BasicCegarLoop]: 2007 mSDtfsCounter, 2563 mSDsluCounter, 3232 mSDsCounter, 0 mSdLazyCounter, 1559 mSolverCounterSat, 2279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2814 SdHoareTripleChecker+Valid, 5239 SdHoareTripleChecker+Invalid, 3838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2279 IncrementalHoareTripleChecker+Valid, 1559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-11-17 02:16:59,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2814 Valid, 5239 Invalid, 3838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2279 Valid, 1559 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2021-11-17 02:16:59,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43120 states. [2021-11-17 02:17:00,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43120 to 39814. [2021-11-17 02:17:01,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39814 states, 28154 states have (on average 1.3345883355828656) internal successors, (37574), 28391 states have internal predecessors, (37574), 8967 states have call successors, (8967), 2693 states have call predecessors, (8967), 2692 states have return successors, (8960), 8921 states have call predecessors, (8960), 8960 states have call successors, (8960) [2021-11-17 02:17:01,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39814 states to 39814 states and 55501 transitions. [2021-11-17 02:17:01,126 INFO L78 Accepts]: Start accepts. Automaton has 39814 states and 55501 transitions. Word has length 237 [2021-11-17 02:17:01,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:17:01,126 INFO L470 AbstractCegarLoop]: Abstraction has 39814 states and 55501 transitions. [2021-11-17 02:17:01,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 02:17:01,127 INFO L276 IsEmpty]: Start isEmpty. Operand 39814 states and 55501 transitions. [2021-11-17 02:17:01,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-11-17 02:17:01,128 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:17:01,128 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:17:01,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 02:17:01,129 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:17:01,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:17:01,129 INFO L85 PathProgramCache]: Analyzing trace with hash -694700025, now seen corresponding path program 1 times [2021-11-17 02:17:01,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:17:01,129 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376051535] [2021-11-17 02:17:01,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:17:01,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:17:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:17:01,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:17:01,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:01,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:01,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:17:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:01,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:17:01,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:01,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:17:01,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:01,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:17:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:17:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:01,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:01,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:17:01,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:01,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:01,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:17:01,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:01,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:17:01,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:17:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 02:17:01,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 02:17:01,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 02:17:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 02:17:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 02:17:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 02:17:01,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 02:17:01,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 02:17:01,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:01,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:01,553 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 810 trivial. 0 not checked. [2021-11-17 02:17:01,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:17:01,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376051535] [2021-11-17 02:17:01,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376051535] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:17:01,553 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:17:01,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 02:17:01,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263385409] [2021-11-17 02:17:01,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:17:01,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 02:17:01,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:17:01,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 02:17:01,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 02:17:01,556 INFO L87 Difference]: Start difference. First operand 39814 states and 55501 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 02:17:07,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:17:07,127 INFO L93 Difference]: Finished difference Result 49298 states and 67806 transitions. [2021-11-17 02:17:07,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 02:17:07,128 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 248 [2021-11-17 02:17:07,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:17:07,322 INFO L225 Difference]: With dead ends: 49298 [2021-11-17 02:17:07,322 INFO L226 Difference]: Without dead ends: 49294 [2021-11-17 02:17:07,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 02:17:07,349 INFO L933 BasicCegarLoop]: 1536 mSDtfsCounter, 1296 mSDsluCounter, 2091 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 770 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1418 SdHoareTripleChecker+Valid, 3627 SdHoareTripleChecker+Invalid, 1906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 770 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-17 02:17:07,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1418 Valid, 3627 Invalid, 1906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [770 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2021-11-17 02:17:07,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49294 states. [2021-11-17 02:17:08,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49294 to 45350. [2021-11-17 02:17:08,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45350 states, 32048 states have (on average 1.317118072890664) internal successors, (42211), 32283 states have internal predecessors, (42211), 9735 states have call successors, (9735), 3567 states have call predecessors, (9735), 3566 states have return successors, (9730), 9691 states have call predecessors, (9730), 9730 states have call successors, (9730) [2021-11-17 02:17:08,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45350 states to 45350 states and 61676 transitions. [2021-11-17 02:17:08,679 INFO L78 Accepts]: Start accepts. Automaton has 45350 states and 61676 transitions. Word has length 248 [2021-11-17 02:17:08,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:17:08,680 INFO L470 AbstractCegarLoop]: Abstraction has 45350 states and 61676 transitions. [2021-11-17 02:17:08,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 02:17:08,681 INFO L276 IsEmpty]: Start isEmpty. Operand 45350 states and 61676 transitions. [2021-11-17 02:17:08,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-11-17 02:17:08,682 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:17:08,682 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:17:08,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 02:17:08,682 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:17:08,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:17:08,683 INFO L85 PathProgramCache]: Analyzing trace with hash -61265610, now seen corresponding path program 1 times [2021-11-17 02:17:08,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:17:08,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138302481] [2021-11-17 02:17:08,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:17:08,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:17:08,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:08,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:17:09,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:09,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:17:09,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:09,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:09,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:17:09,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:09,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:17:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:09,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:09,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:17:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:09,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:17:09,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:09,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:17:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:09,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:17:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:09,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:17:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:09,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:09,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:17:09,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:17:09,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 02:17:09,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 02:17:09,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 02:17:09,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 02:17:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 02:17:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 02:17:09,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 02:17:09,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 02:17:09,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:09,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:09,174 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 810 trivial. 0 not checked. [2021-11-17 02:17:09,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:17:09,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138302481] [2021-11-17 02:17:09,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138302481] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:17:09,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:17:09,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 02:17:09,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043501637] [2021-11-17 02:17:09,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:17:09,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 02:17:09,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:17:09,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 02:17:09,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 02:17:09,177 INFO L87 Difference]: Start difference. First operand 45350 states and 61676 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 02:17:14,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:17:14,981 INFO L93 Difference]: Finished difference Result 115516 states and 157143 transitions. [2021-11-17 02:17:14,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 02:17:14,982 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 249 [2021-11-17 02:17:14,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:17:15,508 INFO L225 Difference]: With dead ends: 115516 [2021-11-17 02:17:15,509 INFO L226 Difference]: Without dead ends: 70224 [2021-11-17 02:17:15,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 02:17:15,605 INFO L933 BasicCegarLoop]: 1643 mSDtfsCounter, 1633 mSDsluCounter, 1928 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 1464 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1751 SdHoareTripleChecker+Valid, 3571 SdHoareTripleChecker+Invalid, 2348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1464 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-17 02:17:15,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1751 Valid, 3571 Invalid, 2348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1464 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2021-11-17 02:17:15,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70224 states. [2021-11-17 02:17:17,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70224 to 63975. [2021-11-17 02:17:17,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63975 states, 45198 states have (on average 1.3105668392406744) internal successors, (59235), 45836 states have internal predecessors, (59235), 13315 states have call successors, (13315), 5611 states have call predecessors, (13315), 5461 states have return successors, (13564), 12783 states have call predecessors, (13564), 13308 states have call successors, (13564) [2021-11-17 02:17:17,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63975 states to 63975 states and 86114 transitions. [2021-11-17 02:17:17,482 INFO L78 Accepts]: Start accepts. Automaton has 63975 states and 86114 transitions. Word has length 249 [2021-11-17 02:17:17,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:17:17,482 INFO L470 AbstractCegarLoop]: Abstraction has 63975 states and 86114 transitions. [2021-11-17 02:17:17,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 02:17:17,483 INFO L276 IsEmpty]: Start isEmpty. Operand 63975 states and 86114 transitions. [2021-11-17 02:17:17,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-11-17 02:17:17,484 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:17:17,484 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:17:17,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 02:17:17,484 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:17:17,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:17:17,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1899630358, now seen corresponding path program 1 times [2021-11-17 02:17:17,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:17:17,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150544505] [2021-11-17 02:17:17,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:17:17,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:17:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:17:17,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:17,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:17:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:17,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:17:17,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:17,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:17:17,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:17,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:17,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:17:17,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:17,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:17,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:17:17,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:17,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:17,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:17:17,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:17,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:17:17,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:17,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:17,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:17:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:17:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:17:17,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 02:17:17,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 02:17:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 02:17:17,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 02:17:17,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 02:17:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 02:17:17,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 02:17:17,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 02:17:17,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:17,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:17,830 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 810 trivial. 0 not checked. [2021-11-17 02:17:17,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:17:17,830 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150544505] [2021-11-17 02:17:17,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150544505] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:17:17,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:17:17,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 02:17:17,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731304590] [2021-11-17 02:17:17,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:17:17,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 02:17:17,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:17:17,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 02:17:17,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 02:17:17,832 INFO L87 Difference]: Start difference. First operand 63975 states and 86114 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 02:17:23,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:17:23,680 INFO L93 Difference]: Finished difference Result 69569 states and 94486 transitions. [2021-11-17 02:17:23,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 02:17:23,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 250 [2021-11-17 02:17:23,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:17:23,906 INFO L225 Difference]: With dead ends: 69569 [2021-11-17 02:17:23,906 INFO L226 Difference]: Without dead ends: 69559 [2021-11-17 02:17:23,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-17 02:17:23,937 INFO L933 BasicCegarLoop]: 1483 mSDtfsCounter, 1680 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 785 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1877 SdHoareTripleChecker+Valid, 2952 SdHoareTripleChecker+Invalid, 1666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 785 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-11-17 02:17:23,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1877 Valid, 2952 Invalid, 1666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [785 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2021-11-17 02:17:23,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69559 states. [2021-11-17 02:17:25,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69559 to 63967. [2021-11-17 02:17:25,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63967 states, 45191 states have (on average 1.3095085304596048) internal successors, (59178), 45828 states have internal predecessors, (59178), 13314 states have call successors, (13314), 5611 states have call predecessors, (13314), 5461 states have return successors, (13564), 12783 states have call predecessors, (13564), 13308 states have call successors, (13564) [2021-11-17 02:17:25,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63967 states to 63967 states and 86056 transitions. [2021-11-17 02:17:25,982 INFO L78 Accepts]: Start accepts. Automaton has 63967 states and 86056 transitions. Word has length 250 [2021-11-17 02:17:25,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:17:25,983 INFO L470 AbstractCegarLoop]: Abstraction has 63967 states and 86056 transitions. [2021-11-17 02:17:25,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 02:17:25,983 INFO L276 IsEmpty]: Start isEmpty. Operand 63967 states and 86056 transitions. [2021-11-17 02:17:25,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2021-11-17 02:17:25,985 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:17:25,986 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 4, 4, 4, 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] [2021-11-17 02:17:25,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 02:17:25,986 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:17:25,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:17:25,986 INFO L85 PathProgramCache]: Analyzing trace with hash -209990257, now seen corresponding path program 1 times [2021-11-17 02:17:25,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:17:25,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200805942] [2021-11-17 02:17:25,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:17:25,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:17:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:17:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:17:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:26,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:17:26,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:26,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:17:26,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:26,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:17:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:26,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:17:26,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:26,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:26,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:17:26,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:17:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:26,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:17:26,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:26,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:26,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:17:26,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:17:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 02:17:26,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 02:17:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 02:17:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 02:17:26,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 02:17:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 02:17:26,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 02:17:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 02:17:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:26,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:26,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-17 02:17:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-11-17 02:17:26,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:26,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 02:17:26,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 02:17:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 02:17:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-17 02:17:26,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-11-17 02:17:26,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:26,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2021-11-17 02:17:26,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:26,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:26,326 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 834 trivial. 0 not checked. [2021-11-17 02:17:26,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:17:26,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200805942] [2021-11-17 02:17:26,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200805942] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:17:26,327 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:17:26,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 02:17:26,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337574990] [2021-11-17 02:17:26,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:17:26,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 02:17:26,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:17:26,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 02:17:26,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 02:17:26,328 INFO L87 Difference]: Start difference. First operand 63967 states and 86056 transitions. Second operand has 8 states, 8 states have (on average 12.875) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (35), 7 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-17 02:17:32,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:17:32,643 INFO L93 Difference]: Finished difference Result 99661 states and 134391 transitions. [2021-11-17 02:17:32,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 02:17:32,644 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (35), 7 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 329 [2021-11-17 02:17:32,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:17:32,763 INFO L225 Difference]: With dead ends: 99661 [2021-11-17 02:17:32,764 INFO L226 Difference]: Without dead ends: 35736 [2021-11-17 02:17:32,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-11-17 02:17:32,897 INFO L933 BasicCegarLoop]: 1443 mSDtfsCounter, 1037 mSDsluCounter, 3071 mSDsCounter, 0 mSdLazyCounter, 1877 mSolverCounterSat, 1334 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1102 SdHoareTripleChecker+Valid, 4514 SdHoareTripleChecker+Invalid, 3211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1334 IncrementalHoareTripleChecker+Valid, 1877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-11-17 02:17:32,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1102 Valid, 4514 Invalid, 3211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1334 Valid, 1877 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2021-11-17 02:17:32,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35736 states. [2021-11-17 02:17:33,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35736 to 32285. [2021-11-17 02:17:33,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32285 states, 22791 states have (on average 1.3102540476503883) internal successors, (29862), 23118 states have internal predecessors, (29862), 6724 states have call successors, (6724), 2845 states have call predecessors, (6724), 2769 states have return successors, (6846), 6449 states have call predecessors, (6846), 6718 states have call successors, (6846) [2021-11-17 02:17:33,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32285 states to 32285 states and 43432 transitions. [2021-11-17 02:17:33,976 INFO L78 Accepts]: Start accepts. Automaton has 32285 states and 43432 transitions. Word has length 329 [2021-11-17 02:17:33,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:17:33,977 INFO L470 AbstractCegarLoop]: Abstraction has 32285 states and 43432 transitions. [2021-11-17 02:17:33,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (35), 7 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-17 02:17:33,977 INFO L276 IsEmpty]: Start isEmpty. Operand 32285 states and 43432 transitions. [2021-11-17 02:17:33,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2021-11-17 02:17:33,983 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:17:33,983 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 9, 9, 9, 9, 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] [2021-11-17 02:17:33,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 02:17:33,984 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:17:33,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:17:33,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1524175847, now seen corresponding path program 1 times [2021-11-17 02:17:33,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:17:33,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312682941] [2021-11-17 02:17:33,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:17:33,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:17:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:17:34,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:34,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:17:34,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:34,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:34,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:17:34,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:34,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:34,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:17:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:17:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:17:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:34,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:17:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:34,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:17:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:34,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:17:34,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:34,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:17:34,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:17:34,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 02:17:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 02:17:34,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 02:17:34,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 02:17:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 02:17:34,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 02:17:34,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 02:17:34,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 02:17:34,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:34,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:34,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-17 02:17:34,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:34,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:34,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-11-17 02:17:34,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-11-17 02:17:34,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:34,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:34,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 02:17:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:34,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 02:17:34,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:34,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-11-17 02:17:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:34,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:34,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-11-17 02:17:34,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:34,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-17 02:17:34,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:34,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-17 02:17:34,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-11-17 02:17:34,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:34,335 INFO L134 CoverageAnalysis]: Checked inductivity of 2324 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2322 trivial. 0 not checked. [2021-11-17 02:17:34,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:17:34,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312682941] [2021-11-17 02:17:34,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312682941] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:17:34,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:17:34,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 02:17:34,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796152751] [2021-11-17 02:17:34,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:17:34,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 02:17:34,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:17:34,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 02:17:34,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 02:17:34,337 INFO L87 Difference]: Start difference. First operand 32285 states and 43432 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (34), 6 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-17 02:17:41,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:17:41,184 INFO L93 Difference]: Finished difference Result 86472 states and 117400 transitions. [2021-11-17 02:17:41,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 02:17:41,184 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (34), 6 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 403 [2021-11-17 02:17:41,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:17:41,338 INFO L225 Difference]: With dead ends: 86472 [2021-11-17 02:17:41,338 INFO L226 Difference]: Without dead ends: 54295 [2021-11-17 02:17:41,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-11-17 02:17:41,407 INFO L933 BasicCegarLoop]: 1969 mSDtfsCounter, 2901 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 1758 mSolverCounterSat, 2505 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3160 SdHoareTripleChecker+Valid, 5117 SdHoareTripleChecker+Invalid, 4263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2505 IncrementalHoareTripleChecker+Valid, 1758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-11-17 02:17:41,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3160 Valid, 5117 Invalid, 4263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2505 Valid, 1758 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2021-11-17 02:17:41,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54295 states. [2021-11-17 02:17:42,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54295 to 48671. [2021-11-17 02:17:42,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48671 states, 34407 states have (on average 1.3085709303339437) internal successors, (45024), 35018 states have internal predecessors, (45024), 10034 states have call successors, (10034), 4221 states have call predecessors, (10034), 4229 states have return successors, (10348), 9623 states have call predecessors, (10348), 10028 states have call successors, (10348) [2021-11-17 02:17:42,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48671 states to 48671 states and 65406 transitions. [2021-11-17 02:17:42,818 INFO L78 Accepts]: Start accepts. Automaton has 48671 states and 65406 transitions. Word has length 403 [2021-11-17 02:17:42,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:17:42,818 INFO L470 AbstractCegarLoop]: Abstraction has 48671 states and 65406 transitions. [2021-11-17 02:17:42,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (34), 6 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-17 02:17:42,818 INFO L276 IsEmpty]: Start isEmpty. Operand 48671 states and 65406 transitions. [2021-11-17 02:17:42,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2021-11-17 02:17:42,822 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:17:42,822 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 9, 9, 9, 9, 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] [2021-11-17 02:17:42,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-17 02:17:42,823 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:17:42,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:17:42,823 INFO L85 PathProgramCache]: Analyzing trace with hash -89710132, now seen corresponding path program 1 times [2021-11-17 02:17:42,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:17:42,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523608126] [2021-11-17 02:17:42,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:17:42,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:17:42,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:42,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:17:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:42,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:42,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:42,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:42,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:42,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:17:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:42,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:42,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:42,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:42,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:42,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:17:42,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:42,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:42,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:42,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:17:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:43,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:43,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:17:43,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:43,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:17:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:43,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:43,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:17:43,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:43,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:17:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:43,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:43,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:17:43,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:43,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:17:43,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:17:43,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 02:17:43,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 02:17:43,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 02:17:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 02:17:43,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 02:17:43,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 02:17:43,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 02:17:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 02:17:43,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:43,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-17 02:17:43,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:43,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-11-17 02:17:43,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:43,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:43,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-11-17 02:17:43,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:43,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 02:17:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:43,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:43,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 02:17:43,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:43,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-11-17 02:17:43,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:43,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-11-17 02:17:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:43,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:43,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-17 02:17:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:43,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2021-11-17 02:17:43,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2021-11-17 02:17:43,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:43,411 INFO L134 CoverageAnalysis]: Checked inductivity of 2324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2324 trivial. 0 not checked. [2021-11-17 02:17:43,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:17:43,411 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523608126] [2021-11-17 02:17:43,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523608126] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:17:43,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:17:43,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 02:17:43,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999811898] [2021-11-17 02:17:43,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:17:43,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 02:17:43,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:17:43,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 02:17:43,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 02:17:43,413 INFO L87 Difference]: Start difference. First operand 48671 states and 65406 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 7 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-17 02:17:49,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:17:49,245 INFO L93 Difference]: Finished difference Result 102825 states and 139017 transitions. [2021-11-17 02:17:49,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 02:17:49,246 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 7 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 402 [2021-11-17 02:17:49,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:17:49,407 INFO L225 Difference]: With dead ends: 102825 [2021-11-17 02:17:49,408 INFO L226 Difference]: Without dead ends: 54262 [2021-11-17 02:17:49,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-11-17 02:17:49,494 INFO L933 BasicCegarLoop]: 1847 mSDtfsCounter, 2246 mSDsluCounter, 2582 mSDsCounter, 0 mSdLazyCounter, 1592 mSolverCounterSat, 1713 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2407 SdHoareTripleChecker+Valid, 4429 SdHoareTripleChecker+Invalid, 3305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1713 IncrementalHoareTripleChecker+Valid, 1592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-17 02:17:49,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2407 Valid, 4429 Invalid, 3305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1713 Valid, 1592 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-11-17 02:17:49,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54262 states. [2021-11-17 02:17:50,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54262 to 47672. [2021-11-17 02:17:50,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47672 states, 33915 states have (on average 1.3079758219077104) internal successors, (44360), 34237 states have internal predecessors, (44360), 9670 states have call successors, (9670), 4113 states have call predecessors, (9670), 4086 states have return successors, (9605), 9513 states have call predecessors, (9605), 9605 states have call successors, (9605) [2021-11-17 02:17:51,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47672 states to 47672 states and 63635 transitions. [2021-11-17 02:17:51,049 INFO L78 Accepts]: Start accepts. Automaton has 47672 states and 63635 transitions. Word has length 402 [2021-11-17 02:17:51,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:17:51,050 INFO L470 AbstractCegarLoop]: Abstraction has 47672 states and 63635 transitions. [2021-11-17 02:17:51,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 7 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-17 02:17:51,050 INFO L276 IsEmpty]: Start isEmpty. Operand 47672 states and 63635 transitions. [2021-11-17 02:17:51,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2021-11-17 02:17:51,057 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:17:51,058 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 9, 9, 9, 9, 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] [2021-11-17 02:17:51,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-17 02:17:51,058 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:17:51,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:17:51,059 INFO L85 PathProgramCache]: Analyzing trace with hash 277264619, now seen corresponding path program 1 times [2021-11-17 02:17:51,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:17:51,059 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860959487] [2021-11-17 02:17:51,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:17:51,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:17:51,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:17:51,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:51,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:17:51,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:51,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:51,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:17:51,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:51,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:51,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:17:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:51,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:17:51,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:51,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:17:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:51,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:17:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:51,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:51,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:17:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:51,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:51,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:17:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:51,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:17:51,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:17:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 02:17:51,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 02:17:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 02:17:51,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 02:17:51,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 02:17:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 02:17:51,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 02:17:51,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 02:17:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:51,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:51,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-17 02:17:51,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:51,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:51,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-11-17 02:17:51,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:51,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:51,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-11-17 02:17:51,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:51,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 02:17:51,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:51,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:51,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 02:17:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:51,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:51,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-11-17 02:17:51,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:51,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-11-17 02:17:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:51,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-17 02:17:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2021-11-17 02:17:51,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2021-11-17 02:17:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-11-17 02:17:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:51,454 INFO L134 CoverageAnalysis]: Checked inductivity of 2324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2324 trivial. 0 not checked. [2021-11-17 02:17:51,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:17:51,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860959487] [2021-11-17 02:17:51,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860959487] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:17:51,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:17:51,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 02:17:51,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65855791] [2021-11-17 02:17:51,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:17:51,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 02:17:51,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:17:51,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 02:17:51,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 02:17:51,456 INFO L87 Difference]: Start difference. First operand 47672 states and 63635 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (35), 8 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-17 02:17:57,362 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:18:02,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:18:02,267 INFO L93 Difference]: Finished difference Result 52176 states and 70195 transitions. [2021-11-17 02:18:02,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-17 02:18:02,267 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (35), 8 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 412 [2021-11-17 02:18:02,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:18:02,436 INFO L225 Difference]: With dead ends: 52176 [2021-11-17 02:18:02,436 INFO L226 Difference]: Without dead ends: 52173 [2021-11-17 02:18:02,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2021-11-17 02:18:02,456 INFO L933 BasicCegarLoop]: 1495 mSDtfsCounter, 1402 mSDsluCounter, 3527 mSDsCounter, 0 mSdLazyCounter, 3354 mSolverCounterSat, 1185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 5022 SdHoareTripleChecker+Invalid, 4539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1185 IncrementalHoareTripleChecker+Valid, 3354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-11-17 02:18:02,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1539 Valid, 5022 Invalid, 4539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1185 Valid, 3354 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2021-11-17 02:18:02,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52173 states. [2021-11-17 02:18:03,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52173 to 47671. [2021-11-17 02:18:03,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47671 states, 33915 states have (on average 1.3056169836355596) internal successors, (44280), 34236 states have internal predecessors, (44280), 9669 states have call successors, (9669), 4113 states have call predecessors, (9669), 4086 states have return successors, (9605), 9513 states have call predecessors, (9605), 9605 states have call successors, (9605) [2021-11-17 02:18:03,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47671 states to 47671 states and 63554 transitions. [2021-11-17 02:18:03,789 INFO L78 Accepts]: Start accepts. Automaton has 47671 states and 63554 transitions. Word has length 412 [2021-11-17 02:18:03,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:18:03,790 INFO L470 AbstractCegarLoop]: Abstraction has 47671 states and 63554 transitions. [2021-11-17 02:18:03,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (35), 8 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-17 02:18:03,790 INFO L276 IsEmpty]: Start isEmpty. Operand 47671 states and 63554 transitions. [2021-11-17 02:18:03,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2021-11-17 02:18:03,821 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:18:03,821 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 9, 9, 9, 9, 4, 4, 4, 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] [2021-11-17 02:18:03,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-17 02:18:03,822 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:18:03,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:18:03,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1103179962, now seen corresponding path program 1 times [2021-11-17 02:18:03,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:18:03,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163247128] [2021-11-17 02:18:03,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:18:03,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:18:03,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:18:04,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:04,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:18:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:18:04,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:04,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:18:04,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:04,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:18:04,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:18:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:18:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:04,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:18:04,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:04,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:18:04,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:04,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:18:04,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:18:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 02:18:04,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 02:18:04,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 02:18:04,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 02:18:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 02:18:04,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 02:18:04,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 02:18:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 02:18:04,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-17 02:18:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-11-17 02:18:04,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-11-17 02:18:04,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:04,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 02:18:04,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:04,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 02:18:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:04,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-11-17 02:18:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:04,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-11-17 02:18:04,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:04,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-17 02:18:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:04,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2021-11-17 02:18:04,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2021-11-17 02:18:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-11-17 02:18:04,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-11-17 02:18:04,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-17 02:18:04,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-11-17 02:18:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2021-11-17 02:18:04,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2021-11-17 02:18:04,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2021-11-17 02:18:04,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,302 INFO L134 CoverageAnalysis]: Checked inductivity of 2349 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2346 trivial. 0 not checked. [2021-11-17 02:18:04,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:18:04,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163247128] [2021-11-17 02:18:04,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163247128] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:18:04,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:18:04,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-17 02:18:04,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534481710] [2021-11-17 02:18:04,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:18:04,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 02:18:04,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:18:04,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 02:18:04,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-17 02:18:04,304 INFO L87 Difference]: Start difference. First operand 47671 states and 63554 transitions. Second operand has 10 states, 10 states have (on average 12.0) internal successors, (120), 5 states have internal predecessors, (120), 2 states have call successors, (45), 7 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2021-11-17 02:18:13,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:18:13,949 INFO L93 Difference]: Finished difference Result 99807 states and 133611 transitions. [2021-11-17 02:18:13,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-17 02:18:13,949 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 5 states have internal predecessors, (120), 2 states have call successors, (45), 7 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 470 [2021-11-17 02:18:13,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:18:14,130 INFO L225 Difference]: With dead ends: 99807 [2021-11-17 02:18:14,130 INFO L226 Difference]: Without dead ends: 52208 [2021-11-17 02:18:14,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2021-11-17 02:18:14,227 INFO L933 BasicCegarLoop]: 1438 mSDtfsCounter, 893 mSDsluCounter, 5844 mSDsCounter, 0 mSdLazyCounter, 3295 mSolverCounterSat, 1045 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 7282 SdHoareTripleChecker+Invalid, 4340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1045 IncrementalHoareTripleChecker+Valid, 3295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-11-17 02:18:14,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [958 Valid, 7282 Invalid, 4340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1045 Valid, 3295 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2021-11-17 02:18:14,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52208 states. [2021-11-17 02:18:15,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52208 to 47674. [2021-11-17 02:18:15,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47674 states, 33918 states have (on average 1.3052361577923226) internal successors, (44271), 34239 states have internal predecessors, (44271), 9669 states have call successors, (9669), 4113 states have call predecessors, (9669), 4086 states have return successors, (9605), 9513 states have call predecessors, (9605), 9605 states have call successors, (9605) [2021-11-17 02:18:15,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47674 states to 47674 states and 63545 transitions. [2021-11-17 02:18:15,771 INFO L78 Accepts]: Start accepts. Automaton has 47674 states and 63545 transitions. Word has length 470 [2021-11-17 02:18:15,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:18:15,772 INFO L470 AbstractCegarLoop]: Abstraction has 47674 states and 63545 transitions. [2021-11-17 02:18:15,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 5 states have internal predecessors, (120), 2 states have call successors, (45), 7 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2021-11-17 02:18:15,772 INFO L276 IsEmpty]: Start isEmpty. Operand 47674 states and 63545 transitions. [2021-11-17 02:18:15,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2021-11-17 02:18:15,804 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:18:15,804 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 9, 9, 9, 9, 4, 4, 4, 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] [2021-11-17 02:18:15,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-17 02:18:15,805 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:18:15,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:18:15,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1071542840, now seen corresponding path program 1 times [2021-11-17 02:18:15,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:18:15,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102452337] [2021-11-17 02:18:15,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:18:15,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:18:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:18:16,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:16,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:16,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:18:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:16,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:18:16,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:18:16,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:16,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:18:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:16,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:18:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:16,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:18:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:16,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:18:16,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:16,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:16,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:18:16,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:16,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:18:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:18:16,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 02:18:16,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 02:18:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 02:18:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 02:18:16,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 02:18:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 02:18:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 02:18:16,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 02:18:16,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:16,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-17 02:18:16,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:16,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-11-17 02:18:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:16,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:16,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-11-17 02:18:16,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:16,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 02:18:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 02:18:16,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:16,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:16,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-11-17 02:18:16,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:16,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-11-17 02:18:16,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:16,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-17 02:18:16,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2021-11-17 02:18:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2021-11-17 02:18:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:16,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-11-17 02:18:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-11-17 02:18:16,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-17 02:18:16,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-11-17 02:18:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2021-11-17 02:18:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2021-11-17 02:18:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2021-11-17 02:18:16,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:16,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:16,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2349 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2349 trivial. 0 not checked. [2021-11-17 02:18:16,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:18:16,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102452337] [2021-11-17 02:18:16,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102452337] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:18:16,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:18:16,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 02:18:16,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737339855] [2021-11-17 02:18:16,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:18:16,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 02:18:16,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:18:16,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 02:18:16,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-17 02:18:16,483 INFO L87 Difference]: Start difference. First operand 47674 states and 63545 transitions. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (45), 7 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2021-11-17 02:18:28,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:18:28,963 INFO L93 Difference]: Finished difference Result 129490 states and 182139 transitions. [2021-11-17 02:18:28,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 02:18:28,963 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (45), 7 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 470 [2021-11-17 02:18:28,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:18:29,182 INFO L225 Difference]: With dead ends: 129490 [2021-11-17 02:18:29,182 INFO L226 Difference]: Without dead ends: 81924 [2021-11-17 02:18:29,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-11-17 02:18:29,267 INFO L933 BasicCegarLoop]: 2298 mSDtfsCounter, 2228 mSDsluCounter, 7245 mSDsCounter, 0 mSdLazyCounter, 3719 mSolverCounterSat, 1310 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2471 SdHoareTripleChecker+Valid, 9543 SdHoareTripleChecker+Invalid, 5029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1310 IncrementalHoareTripleChecker+Valid, 3719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2021-11-17 02:18:29,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2471 Valid, 9543 Invalid, 5029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1310 Valid, 3719 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2021-11-17 02:18:29,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81924 states. [2021-11-17 02:18:30,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81924 to 47722. [2021-11-17 02:18:30,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47722 states, 33966 states have (on average 1.3040982158629217) internal successors, (44295), 34287 states have internal predecessors, (44295), 9669 states have call successors, (9669), 4113 states have call predecessors, (9669), 4086 states have return successors, (9605), 9513 states have call predecessors, (9605), 9605 states have call successors, (9605) [2021-11-17 02:18:31,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47722 states to 47722 states and 63569 transitions. [2021-11-17 02:18:31,050 INFO L78 Accepts]: Start accepts. Automaton has 47722 states and 63569 transitions. Word has length 470 [2021-11-17 02:18:31,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:18:31,050 INFO L470 AbstractCegarLoop]: Abstraction has 47722 states and 63569 transitions. [2021-11-17 02:18:31,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (45), 7 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2021-11-17 02:18:31,050 INFO L276 IsEmpty]: Start isEmpty. Operand 47722 states and 63569 transitions. [2021-11-17 02:18:31,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2021-11-17 02:18:31,085 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:18:31,085 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 9, 9, 9, 9, 4, 4, 4, 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] [2021-11-17 02:18:31,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-17 02:18:31,085 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:18:31,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:18:31,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1024051614, now seen corresponding path program 1 times [2021-11-17 02:18:31,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:18:31,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391050481] [2021-11-17 02:18:31,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:18:31,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:18:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:18:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:31,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:18:31,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:31,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:31,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:18:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:31,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:18:31,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:31,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:18:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:18:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:31,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:18:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:18:31,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:18:31,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:31,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:31,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:18:31,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:18:31,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 02:18:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 02:18:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 02:18:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 02:18:31,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 02:18:31,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 02:18:31,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 02:18:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 02:18:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:31,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:31,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-17 02:18:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:31,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-11-17 02:18:31,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:31,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-11-17 02:18:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:31,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:31,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 02:18:31,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:31,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:31,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 02:18:31,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:31,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-11-17 02:18:31,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-11-17 02:18:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:31,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:31,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-17 02:18:31,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:31,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:31,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2021-11-17 02:18:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2021-11-17 02:18:31,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:31,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-11-17 02:18:31,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-11-17 02:18:31,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-17 02:18:31,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-11-17 02:18:31,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2021-11-17 02:18:31,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:31,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2021-11-17 02:18:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:31,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:31,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 461 [2021-11-17 02:18:31,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:31,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:31,614 INFO L134 CoverageAnalysis]: Checked inductivity of 2349 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2349 trivial. 0 not checked. [2021-11-17 02:18:31,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:18:31,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391050481] [2021-11-17 02:18:31,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391050481] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:18:31,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:18:31,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 02:18:31,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321557851] [2021-11-17 02:18:31,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:18:31,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 02:18:31,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:18:31,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 02:18:31,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 02:18:31,616 INFO L87 Difference]: Start difference. First operand 47722 states and 63569 transitions. Second operand has 8 states, 8 states have (on average 15.25) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-17 02:18:38,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:18:38,581 INFO L93 Difference]: Finished difference Result 112623 states and 154425 transitions. [2021-11-17 02:18:38,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 02:18:38,581 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.25) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 476 [2021-11-17 02:18:38,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:18:38,750 INFO L225 Difference]: With dead ends: 112623 [2021-11-17 02:18:38,750 INFO L226 Difference]: Without dead ends: 65009 [2021-11-17 02:18:38,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-11-17 02:18:38,836 INFO L933 BasicCegarLoop]: 1932 mSDtfsCounter, 1547 mSDsluCounter, 3920 mSDsCounter, 0 mSdLazyCounter, 2039 mSolverCounterSat, 1341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1756 SdHoareTripleChecker+Valid, 5852 SdHoareTripleChecker+Invalid, 3380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1341 IncrementalHoareTripleChecker+Valid, 2039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-11-17 02:18:38,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1756 Valid, 5852 Invalid, 3380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1341 Valid, 2039 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2021-11-17 02:18:38,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65009 states. [2021-11-17 02:18:40,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65009 to 47770. [2021-11-17 02:18:40,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47770 states, 33990 states have (on average 1.3031774051191527) internal successors, (44295), 34311 states have internal predecessors, (44295), 9693 states have call successors, (9693), 4113 states have call predecessors, (9693), 4086 states have return successors, (9629), 9537 states have call predecessors, (9629), 9629 states have call successors, (9629) [2021-11-17 02:18:40,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47770 states to 47770 states and 63617 transitions. [2021-11-17 02:18:40,504 INFO L78 Accepts]: Start accepts. Automaton has 47770 states and 63617 transitions. Word has length 476 [2021-11-17 02:18:40,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:18:40,505 INFO L470 AbstractCegarLoop]: Abstraction has 47770 states and 63617 transitions. [2021-11-17 02:18:40,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.25) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-17 02:18:40,505 INFO L276 IsEmpty]: Start isEmpty. Operand 47770 states and 63617 transitions. [2021-11-17 02:18:40,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2021-11-17 02:18:40,534 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:18:40,534 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 9, 9, 9, 9, 4, 4, 4, 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] [2021-11-17 02:18:40,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-17 02:18:40,535 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:18:40,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:18:40,535 INFO L85 PathProgramCache]: Analyzing trace with hash -489238890, now seen corresponding path program 1 times [2021-11-17 02:18:40,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:18:40,535 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927169160] [2021-11-17 02:18:40,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:18:40,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:18:40,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:18:40,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:40,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:18:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:40,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:18:40,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:18:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:18:40,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:40,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:18:40,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:40,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:18:40,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:40,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:40,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:18:40,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:40,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:40,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:18:40,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:18:40,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:18:40,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 02:18:40,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 02:18:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 02:18:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 02:18:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 02:18:40,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 02:18:40,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 02:18:40,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 02:18:40,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:40,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:40,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-17 02:18:40,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:40,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:40,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-11-17 02:18:40,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:40,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:40,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-11-17 02:18:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:40,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 02:18:40,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 02:18:40,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:40,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:40,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-11-17 02:18:40,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:40,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-11-17 02:18:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:40,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-17 02:18:40,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:40,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2021-11-17 02:18:40,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2021-11-17 02:18:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-11-17 02:18:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-11-17 02:18:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-17 02:18:40,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-11-17 02:18:40,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2021-11-17 02:18:40,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2021-11-17 02:18:40,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:40,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 461 [2021-11-17 02:18:40,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:40,947 INFO L134 CoverageAnalysis]: Checked inductivity of 2349 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2349 trivial. 0 not checked. [2021-11-17 02:18:40,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:18:40,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927169160] [2021-11-17 02:18:40,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927169160] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:18:40,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:18:40,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 02:18:40,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380465808] [2021-11-17 02:18:40,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:18:40,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 02:18:40,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:18:40,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 02:18:40,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-17 02:18:40,949 INFO L87 Difference]: Start difference. First operand 47770 states and 63617 transitions. Second operand has 9 states, 9 states have (on average 14.0) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-17 02:18:44,285 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:18:50,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:18:50,943 INFO L93 Difference]: Finished difference Result 126841 states and 177680 transitions. [2021-11-17 02:18:50,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 02:18:50,944 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.0) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 480 [2021-11-17 02:18:50,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:18:51,188 INFO L225 Difference]: With dead ends: 126841 [2021-11-17 02:18:51,188 INFO L226 Difference]: Without dead ends: 79179 [2021-11-17 02:18:51,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-11-17 02:18:51,303 INFO L933 BasicCegarLoop]: 2185 mSDtfsCounter, 2284 mSDsluCounter, 5929 mSDsCounter, 0 mSdLazyCounter, 2827 mSolverCounterSat, 1550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2526 SdHoareTripleChecker+Valid, 8114 SdHoareTripleChecker+Invalid, 4377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1550 IncrementalHoareTripleChecker+Valid, 2827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2021-11-17 02:18:51,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2526 Valid, 8114 Invalid, 4377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1550 Valid, 2827 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2021-11-17 02:18:51,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79179 states. [2021-11-17 02:18:53,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79179 to 47250. [2021-11-17 02:18:53,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47250 states, 33666 states have (on average 1.301728747103903) internal successors, (43824), 33963 states have internal predecessors, (43824), 9570 states have call successors, (9570), 4040 states have call predecessors, (9570), 4013 states have return successors, (9507), 9438 states have call predecessors, (9507), 9507 states have call successors, (9507) [2021-11-17 02:18:53,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47250 states to 47250 states and 62901 transitions. [2021-11-17 02:18:53,327 INFO L78 Accepts]: Start accepts. Automaton has 47250 states and 62901 transitions. Word has length 480 [2021-11-17 02:18:53,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:18:53,327 INFO L470 AbstractCegarLoop]: Abstraction has 47250 states and 62901 transitions. [2021-11-17 02:18:53,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.0) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-17 02:18:53,328 INFO L276 IsEmpty]: Start isEmpty. Operand 47250 states and 62901 transitions. [2021-11-17 02:18:53,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2021-11-17 02:18:53,401 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:18:53,401 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 9, 9, 9, 9, 5, 5, 5, 3, 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] [2021-11-17 02:18:53,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-17 02:18:53,401 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:18:53,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:18:53,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1018155600, now seen corresponding path program 1 times [2021-11-17 02:18:53,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:18:53,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916447863] [2021-11-17 02:18:53,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:18:53,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:18:53,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:18:53,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:53,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:53,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:18:53,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:53,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:53,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:18:53,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:53,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:53,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:18:53,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:53,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:53,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:18:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:53,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:18:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:18:53,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:18:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:53,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:53,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:18:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:53,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:53,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:18:53,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:18:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 02:18:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 02:18:53,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 02:18:53,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 02:18:53,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 02:18:53,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 02:18:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 02:18:53,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 02:18:53,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-17 02:18:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:53,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:53,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-11-17 02:18:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-11-17 02:18:53,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:53,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:53,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 02:18:53,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:53,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:53,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 02:18:53,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:53,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-11-17 02:18:53,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:53,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:53,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-11-17 02:18:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:53,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-17 02:18:53,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2021-11-17 02:18:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2021-11-17 02:18:53,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:53,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-11-17 02:18:53,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-11-17 02:18:53,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-17 02:18:53,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-11-17 02:18:53,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2021-11-17 02:18:53,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:53,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:53,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2021-11-17 02:18:53,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2021-11-17 02:18:53,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:53,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2021-11-17 02:18:54,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:54,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2021-11-17 02:18:54,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:54,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2021-11-17 02:18:54,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:54,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:54,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:54,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2021-11-17 02:18:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:54,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2021-11-17 02:18:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:54,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 505 [2021-11-17 02:18:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:54,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 513 [2021-11-17 02:18:54,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:54,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2021-11-17 02:18:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:54,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2021-11-17 02:18:54,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:54,048 INFO L134 CoverageAnalysis]: Checked inductivity of 2382 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2376 trivial. 0 not checked. [2021-11-17 02:18:54,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:18:54,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916447863] [2021-11-17 02:18:54,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916447863] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:18:54,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:18:54,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-17 02:18:54,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100560532] [2021-11-17 02:18:54,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:18:54,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-17 02:18:54,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:18:54,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-17 02:18:54,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-17 02:18:54,051 INFO L87 Difference]: Start difference. First operand 47250 states and 62901 transitions. Second operand has 12 states, 12 states have (on average 13.916666666666666) internal successors, (167), 5 states have internal predecessors, (167), 3 states have call successors, (54), 9 states have call predecessors, (54), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2021-11-17 02:19:18,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:19:18,184 INFO L93 Difference]: Finished difference Result 144148 states and 193311 transitions. [2021-11-17 02:19:18,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-17 02:19:18,185 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 13.916666666666666) internal successors, (167), 5 states have internal predecessors, (167), 3 states have call successors, (54), 9 states have call predecessors, (54), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 548 [2021-11-17 02:19:18,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:19:18,677 INFO L225 Difference]: With dead ends: 144148 [2021-11-17 02:19:18,677 INFO L226 Difference]: Without dead ends: 97006 [2021-11-17 02:19:18,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=219, Invalid=837, Unknown=0, NotChecked=0, Total=1056 [2021-11-17 02:19:18,778 INFO L933 BasicCegarLoop]: 2726 mSDtfsCounter, 2887 mSDsluCounter, 11874 mSDsCounter, 0 mSdLazyCounter, 8192 mSolverCounterSat, 2216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3052 SdHoareTripleChecker+Valid, 14600 SdHoareTripleChecker+Invalid, 10408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2216 IncrementalHoareTripleChecker+Valid, 8192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2021-11-17 02:19:18,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3052 Valid, 14600 Invalid, 10408 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2216 Valid, 8192 Invalid, 0 Unknown, 0 Unchecked, 20.9s Time] [2021-11-17 02:19:18,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97006 states. [2021-11-17 02:19:21,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97006 to 84628. [2021-11-17 02:19:21,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84628 states, 60139 states have (on average 1.2988410183075874) internal successors, (78111), 60679 states have internal predecessors, (78111), 17270 states have call successors, (17270), 7245 states have call predecessors, (17270), 7218 states have return successors, (17207), 17039 states have call predecessors, (17207), 17207 states have call successors, (17207) [2021-11-17 02:19:21,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84628 states to 84628 states and 112588 transitions. [2021-11-17 02:19:21,997 INFO L78 Accepts]: Start accepts. Automaton has 84628 states and 112588 transitions. Word has length 548 [2021-11-17 02:19:21,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:19:21,998 INFO L470 AbstractCegarLoop]: Abstraction has 84628 states and 112588 transitions. [2021-11-17 02:19:21,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 13.916666666666666) internal successors, (167), 5 states have internal predecessors, (167), 3 states have call successors, (54), 9 states have call predecessors, (54), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2021-11-17 02:19:21,998 INFO L276 IsEmpty]: Start isEmpty. Operand 84628 states and 112588 transitions. [2021-11-17 02:19:22,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2021-11-17 02:19:22,092 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:19:22,093 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 9, 9, 9, 9, 5, 5, 5, 3, 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] [2021-11-17 02:19:22,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-17 02:19:22,093 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:19:22,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:19:22,093 INFO L85 PathProgramCache]: Analyzing trace with hash -2029272850, now seen corresponding path program 1 times [2021-11-17 02:19:22,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:19:22,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798686724] [2021-11-17 02:19:22,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:19:22,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:19:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:19:22,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:22,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:22,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:19:22,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:22,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:19:22,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:22,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:22,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:19:22,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:22,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:19:22,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:22,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:19:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:22,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:22,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:19:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:22,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:19:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:22,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:19:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:22,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:22,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:19:22,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:19:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 02:19:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 02:19:22,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 02:19:22,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 02:19:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 02:19:22,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 02:19:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 02:19:22,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 02:19:22,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:22,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:22,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-17 02:19:22,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:22,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-11-17 02:19:22,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:22,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:22,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-11-17 02:19:22,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:22,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:22,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 02:19:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:22,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 02:19:22,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-11-17 02:19:22,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:22,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-11-17 02:19:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:22,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:22,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-17 02:19:22,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2021-11-17 02:19:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2021-11-17 02:19:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-11-17 02:19:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-11-17 02:19:22,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-17 02:19:22,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-11-17 02:19:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2021-11-17 02:19:22,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:22,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:22,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2021-11-17 02:19:22,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:22,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2021-11-17 02:19:22,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2021-11-17 02:19:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2021-11-17 02:19:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2021-11-17 02:19:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:22,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2021-11-17 02:19:22,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2021-11-17 02:19:22,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 505 [2021-11-17 02:19:22,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 513 [2021-11-17 02:19:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2021-11-17 02:19:22,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2021-11-17 02:19:22,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:22,980 INFO L134 CoverageAnalysis]: Checked inductivity of 2382 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 2368 trivial. 0 not checked. [2021-11-17 02:19:22,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:19:22,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798686724] [2021-11-17 02:19:22,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798686724] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 02:19:22,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339163775] [2021-11-17 02:19:22,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:19:22,980 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:19:22,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 02:19:23,007 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 02:19:23,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-17 02:19:23,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:23,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 5690 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-17 02:19:23,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:19:24,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2382 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2376 trivial. 0 not checked. [2021-11-17 02:19:24,669 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 02:19:24,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339163775] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:19:24,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 02:19:24,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [14] total 15 [2021-11-17 02:19:24,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052159029] [2021-11-17 02:19:24,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:19:24,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 02:19:24,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:19:24,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 02:19:24,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-11-17 02:19:24,671 INFO L87 Difference]: Start difference. First operand 84628 states and 112588 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2021-11-17 02:19:27,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:19:27,428 INFO L93 Difference]: Finished difference Result 169484 states and 225709 transitions. [2021-11-17 02:19:27,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 02:19:27,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 548 [2021-11-17 02:19:27,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:19:27,851 INFO L225 Difference]: With dead ends: 169484 [2021-11-17 02:19:27,851 INFO L226 Difference]: Without dead ends: 84964 [2021-11-17 02:19:27,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 727 GetRequests, 714 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-11-17 02:19:27,996 INFO L933 BasicCegarLoop]: 1556 mSDtfsCounter, 6 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3103 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-17 02:19:27,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 3103 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-17 02:19:28,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84964 states. [2021-11-17 02:19:30,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84964 to 84964. [2021-11-17 02:19:30,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84964 states, 60475 states have (on average 1.3003555188094253) internal successors, (78639), 61015 states have internal predecessors, (78639), 17270 states have call successors, (17270), 7245 states have call predecessors, (17270), 7218 states have return successors, (17207), 17039 states have call predecessors, (17207), 17207 states have call successors, (17207) [2021-11-17 02:19:31,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84964 states to 84964 states and 113116 transitions. [2021-11-17 02:19:31,484 INFO L78 Accepts]: Start accepts. Automaton has 84964 states and 113116 transitions. Word has length 548 [2021-11-17 02:19:31,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:19:31,485 INFO L470 AbstractCegarLoop]: Abstraction has 84964 states and 113116 transitions. [2021-11-17 02:19:31,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2021-11-17 02:19:31,485 INFO L276 IsEmpty]: Start isEmpty. Operand 84964 states and 113116 transitions. [2021-11-17 02:19:31,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2021-11-17 02:19:31,599 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:19:31,599 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 9, 9, 9, 9, 5, 5, 5, 3, 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] [2021-11-17 02:19:31,625 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-17 02:19:31,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:19:31,808 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:19:31,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:19:31,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1264100331, now seen corresponding path program 1 times [2021-11-17 02:19:31,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:19:31,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251039262] [2021-11-17 02:19:31,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:19:31,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:19:32,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:19:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:32,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:19:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:32,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:19:32,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:32,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:32,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:19:32,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:32,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:19:32,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:32,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:19:32,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:32,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:19:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:32,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:32,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:19:32,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:19:32,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:32,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:19:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:19:32,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 02:19:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 02:19:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 02:19:32,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 02:19:32,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 02:19:32,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 02:19:32,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 02:19:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 02:19:32,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:32,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:32,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-17 02:19:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:32,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:32,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-11-17 02:19:32,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-11-17 02:19:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:32,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:32,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 02:19:32,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:32,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 02:19:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-11-17 02:19:32,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:32,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-11-17 02:19:32,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:32,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-17 02:19:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:32,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2021-11-17 02:19:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2021-11-17 02:19:32,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:32,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-11-17 02:19:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-11-17 02:19:32,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-17 02:19:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-11-17 02:19:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2021-11-17 02:19:32,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:32,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:32,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2021-11-17 02:19:32,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2021-11-17 02:19:32,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2021-11-17 02:19:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2021-11-17 02:19:32,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2021-11-17 02:19:32,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:32,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2021-11-17 02:19:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 02:19:32,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2021-11-17 02:19:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2021-11-17 02:19:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2021-11-17 02:19:32,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2021-11-17 02:19:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2021-11-17 02:19:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:32,684 INFO L134 CoverageAnalysis]: Checked inductivity of 2385 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 2371 trivial. 0 not checked. [2021-11-17 02:19:32,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:19:32,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251039262] [2021-11-17 02:19:32,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251039262] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 02:19:32,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253822173] [2021-11-17 02:19:32,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:19:32,685 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:19:32,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 02:19:32,686 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 02:19:32,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-17 02:19:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:33,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 5728 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-17 02:19:33,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:19:34,539 INFO L134 CoverageAnalysis]: Checked inductivity of 2385 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2379 trivial. 0 not checked. [2021-11-17 02:19:34,539 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 02:19:34,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253822173] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:19:34,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 02:19:34,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2021-11-17 02:19:34,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017314737] [2021-11-17 02:19:34,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:19:34,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 02:19:34,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:19:34,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 02:19:34,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-11-17 02:19:34,541 INFO L87 Difference]: Start difference. First operand 84964 states and 113116 transitions. Second operand has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 5 states have internal predecessors, (169), 3 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (52), 4 states have call predecessors, (52), 3 states have call successors, (52)