./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash eefd235ee9286fb26972c9330c15c8716ca6eda0b1c2e20434464e9f78c9f154 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 15:04:11,718 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 15:04:11,720 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 15:04:11,764 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 15:04:11,765 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 15:04:11,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 15:04:11,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 15:04:11,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 15:04:11,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 15:04:11,769 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 15:04:11,769 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 15:04:11,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 15:04:11,771 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 15:04:11,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 15:04:11,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 15:04:11,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 15:04:11,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 15:04:11,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 15:04:11,779 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 15:04:11,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 15:04:11,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 15:04:11,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 15:04:11,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 15:04:11,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 15:04:11,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 15:04:11,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 15:04:11,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 15:04:11,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 15:04:11,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 15:04:11,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 15:04:11,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 15:04:11,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 15:04:11,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 15:04:11,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 15:04:11,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 15:04:11,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 15:04:11,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 15:04:11,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 15:04:11,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 15:04:11,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 15:04:11,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 15:04:11,793 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 15:04:11,810 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 15:04:11,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 15:04:11,810 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 15:04:11,810 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 15:04:11,811 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 15:04:11,811 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 15:04:11,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 15:04:11,811 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 15:04:11,812 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 15:04:11,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 15:04:11,812 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 15:04:11,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 15:04:11,812 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 15:04:11,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 15:04:11,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 15:04:11,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 15:04:11,813 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 15:04:11,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 15:04:11,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 15:04:11,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 15:04:11,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 15:04:11,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:04:11,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 15:04:11,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 15:04:11,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 15:04:11,814 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 15:04:11,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 15:04:11,814 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 15:04:11,814 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 15:04:11,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 15:04:11,815 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 15:04:11,815 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eefd235ee9286fb26972c9330c15c8716ca6eda0b1c2e20434464e9f78c9f154 [2021-12-22 15:04:12,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 15:04:12,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 15:04:12,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 15:04:12,020 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 15:04:12,022 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 15:04:12,023 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i [2021-12-22 15:04:12,079 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e47cada2d/647eea21b6ad4aefbae5160b756f6dda/FLAGf43c462e1 [2021-12-22 15:04:12,766 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 15:04:12,767 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i [2021-12-22 15:04:12,810 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e47cada2d/647eea21b6ad4aefbae5160b756f6dda/FLAGf43c462e1 [2021-12-22 15:04:13,114 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e47cada2d/647eea21b6ad4aefbae5160b756f6dda [2021-12-22 15:04:13,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 15:04:13,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 15:04:13,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 15:04:13,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 15:04:13,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 15:04:13,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:04:13" (1/1) ... [2021-12-22 15:04:13,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24b57a76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:13, skipping insertion in model container [2021-12-22 15:04:13,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:04:13" (1/1) ... [2021-12-22 15:04:13,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 15:04:13,239 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 15:04:14,798 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i[429142,429155] [2021-12-22 15:04:14,881 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:04:14,898 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 15:04:15,249 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i[429142,429155] [2021-12-22 15:04:15,254 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:04:15,357 INFO L208 MainTranslator]: Completed translation [2021-12-22 15:04:15,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:15 WrapperNode [2021-12-22 15:04:15,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 15:04:15,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 15:04:15,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 15:04:15,360 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 15:04:15,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:15" (1/1) ... [2021-12-22 15:04:15,461 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:15" (1/1) ... [2021-12-22 15:04:15,626 INFO L137 Inliner]: procedures = 276, calls = 3498, calls flagged for inlining = 107, calls inlined = 96, statements flattened = 6394 [2021-12-22 15:04:15,627 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 15:04:15,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 15:04:15,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 15:04:15,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 15:04:15,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:15" (1/1) ... [2021-12-22 15:04:15,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:15" (1/1) ... [2021-12-22 15:04:15,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:15" (1/1) ... [2021-12-22 15:04:15,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:15" (1/1) ... [2021-12-22 15:04:15,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:15" (1/1) ... [2021-12-22 15:04:15,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:15" (1/1) ... [2021-12-22 15:04:15,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:15" (1/1) ... [2021-12-22 15:04:15,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 15:04:15,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 15:04:15,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 15:04:15,839 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 15:04:15,840 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:15" (1/1) ... [2021-12-22 15:04:15,845 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:04:15,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:04:15,862 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) [2021-12-22 15:04:15,868 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 [2021-12-22 15:04:15,886 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_set_fw_ps_tdma [2021-12-22 15:04:15,886 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_set_fw_ps_tdma [2021-12-22 15:04:15,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 15:04:15,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 15:04:15,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 15:04:15,887 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 15:04:15,887 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_word [2021-12-22 15:04:15,887 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_word [2021-12-22 15:04:15,887 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_nomal_low_power [2021-12-22 15:04:15,887 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_nomal_low_power [2021-12-22 15:04:15,887 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_byte [2021-12-22 15:04:15,887 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_byte [2021-12-22 15:04:15,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 15:04:15,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 15:04:15,888 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_is_wifi_uplink [2021-12-22 15:04:15,888 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_is_wifi_uplink [2021-12-22 15:04:15,888 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_word [2021-12-22 15:04:15,888 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_word [2021-12-22 15:04:15,888 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_wifioff_hwcfg [2021-12-22 15:04:15,888 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_wifioff_hwcfg [2021-12-22 15:04:15,889 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_byte [2021-12-22 15:04:15,889 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_byte [2021-12-22 15:04:15,889 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~$Pointer$~TO~VOID [2021-12-22 15:04:15,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~$Pointer$~TO~VOID [2021-12-22 15:04:15,889 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 15:04:15,889 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 15:04:15,889 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_lps_notify [2021-12-22 15:04:15,889 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_lps_notify [2021-12-22 15:04:15,889 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_ps_tdma [2021-12-22 15:04:15,890 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_ps_tdma [2021-12-22 15:04:15,890 INFO L130 BoogieDeclarations]: Found specification of procedure ex_btc8723b2ant_media_status_notify [2021-12-22 15:04:15,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ex_btc8723b2ant_media_status_notify [2021-12-22 15:04:15,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 15:04:15,890 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_tdma_duration_adjust [2021-12-22 15:04:15,890 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_tdma_duration_adjust [2021-12-22 15:04:15,890 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_ignore_wlan_act [2021-12-22 15:04:15,890 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_ignore_wlan_act [2021-12-22 15:04:15,891 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_dword [2021-12-22 15:04:15,891 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_dword [2021-12-22 15:04:15,891 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_read_4byte [2021-12-22 15:04:15,891 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_read_4byte [2021-12-22 15:04:15,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 15:04:15,891 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_write_4byte [2021-12-22 15:04:15,891 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_write_4byte [2021-12-22 15:04:15,891 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_get_wifi_rssi [2021-12-22 15:04:15,892 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_get_wifi_rssi [2021-12-22 15:04:15,892 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u16~0~TO~VOID [2021-12-22 15:04:15,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u16~0~TO~VOID [2021-12-22 15:04:15,892 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_scan_notify [2021-12-22 15:04:15,892 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_scan_notify [2021-12-22 15:04:15,892 INFO L130 BoogieDeclarations]: Found specification of procedure ex_btc8723b2ant_init_hwconfig [2021-12-22 15:04:15,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ex_btc8723b2ant_init_hwconfig [2021-12-22 15:04:15,893 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_leave_low_power [2021-12-22 15:04:15,893 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_leave_low_power [2021-12-22 15:04:15,893 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2021-12-22 15:04:15,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2021-12-22 15:04:15,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 15:04:15,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 15:04:15,894 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_connect_notify [2021-12-22 15:04:15,895 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_connect_notify [2021-12-22 15:04:15,895 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_wifi_rssi_state [2021-12-22 15:04:15,895 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_wifi_rssi_state [2021-12-22 15:04:15,895 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u8~0~TO~VOID [2021-12-22 15:04:15,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u8~0~TO~VOID [2021-12-22 15:04:15,895 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_dec_bt_pwr [2021-12-22 15:04:15,895 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_dec_bt_pwr [2021-12-22 15:04:15,896 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_set_dac_swing_reg [2021-12-22 15:04:15,896 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_set_dac_swing_reg [2021-12-22 15:04:15,896 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2021-12-22 15:04:15,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2021-12-22 15:04:15,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 15:04:15,896 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_set_ant_path [2021-12-22 15:04:15,896 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_set_ant_path [2021-12-22 15:04:15,897 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_init_coex_dm [2021-12-22 15:04:15,897 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_init_coex_dm [2021-12-22 15:04:15,897 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_coex_alloff [2021-12-22 15:04:15,897 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_coex_alloff [2021-12-22 15:04:15,897 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~~u32~0~X~~u32~0~TO~VOID [2021-12-22 15:04:15,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~~u32~0~X~~u32~0~TO~VOID [2021-12-22 15:04:15,897 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_bt_rssi_state [2021-12-22 15:04:15,897 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_bt_rssi_state [2021-12-22 15:04:15,897 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b_coex_tbl_type [2021-12-22 15:04:15,898 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b_coex_tbl_type [2021-12-22 15:04:15,898 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2021-12-22 15:04:15,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2021-12-22 15:04:15,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 15:04:15,898 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_enter_lps [2021-12-22 15:04:15,898 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_enter_lps [2021-12-22 15:04:15,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 15:04:15,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 15:04:15,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-22 15:04:15,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-22 15:04:15,899 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2021-12-22 15:04:15,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2021-12-22 15:04:15,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 15:04:15,899 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_read_1byte [2021-12-22 15:04:15,899 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_read_1byte [2021-12-22 15:04:15,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-22 15:04:15,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-22 15:04:15,899 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_is_bt_coexist_available [2021-12-22 15:04:15,900 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_is_bt_coexist_available [2021-12-22 15:04:15,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 15:04:15,900 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_sw_mechanism1 [2021-12-22 15:04:15,900 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_sw_mechanism1 [2021-12-22 15:04:15,900 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_sw_mechanism2 [2021-12-22 15:04:15,900 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_sw_mechanism2 [2021-12-22 15:04:15,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 15:04:15,900 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_fw_dac_swing_lvl [2021-12-22 15:04:15,900 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_fw_dac_swing_lvl [2021-12-22 15:04:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-22 15:04:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_fill_h2c_cmd [2021-12-22 15:04:15,901 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_fill_h2c_cmd [2021-12-22 15:04:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b_need_dec_pwr [2021-12-22 15:04:15,901 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b_need_dec_pwr [2021-12-22 15:04:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_coex_table [2021-12-22 15:04:15,901 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_coex_table [2021-12-22 15:04:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_leave_lps [2021-12-22 15:04:15,902 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_leave_lps [2021-12-22 15:04:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_run_coexist_mechanism [2021-12-22 15:04:15,902 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_run_coexist_mechanism [2021-12-22 15:04:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~~bool~0 [2021-12-22 15:04:15,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~~bool~0 [2021-12-22 15:04:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_ips_notify [2021-12-22 15:04:15,902 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_ips_notify [2021-12-22 15:04:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_special_packet_notify [2021-12-22 15:04:15,902 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_special_packet_notify [2021-12-22 15:04:15,903 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_dword [2021-12-22 15:04:15,903 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_dword [2021-12-22 15:04:15,903 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_write_2byte [2021-12-22 15:04:15,903 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_write_2byte [2021-12-22 15:04:15,903 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_read_2byte [2021-12-22 15:04:15,903 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_read_2byte [2021-12-22 15:04:15,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 15:04:15,903 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_set [2021-12-22 15:04:15,903 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_set [2021-12-22 15:04:15,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 15:04:15,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 15:04:15,904 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-12-22 15:04:15,904 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-12-22 15:04:16,510 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 15:04:16,511 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 15:04:17,681 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 15:04:21,464 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 15:04:21,534 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 15:04:21,535 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-22 15:04:21,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:04:21 BoogieIcfgContainer [2021-12-22 15:04:21,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 15:04:21,544 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 15:04:21,544 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 15:04:21,547 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 15:04:21,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:04:13" (1/3) ... [2021-12-22 15:04:21,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cac4c87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:04:21, skipping insertion in model container [2021-12-22 15:04:21,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:15" (2/3) ... [2021-12-22 15:04:21,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cac4c87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:04:21, skipping insertion in model container [2021-12-22 15:04:21,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:04:21" (3/3) ... [2021-12-22 15:04:21,550 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i [2021-12-22 15:04:21,555 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 15:04:21,555 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 15:04:21,603 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 15:04:21,618 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 [2021-12-22 15:04:21,618 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 15:04:21,670 INFO L276 IsEmpty]: Start isEmpty. Operand has 2758 states, 1894 states have (on average 1.4614572333685323) internal successors, (2768), 2008 states have internal predecessors, (2768), 800 states have call successors, (800), 63 states have call predecessors, (800), 62 states have return successors, (797), 705 states have call predecessors, (797), 797 states have call successors, (797) [2021-12-22 15:04:21,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-22 15:04:21,676 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:04:21,676 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:04:21,677 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:04:21,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:04:21,680 INFO L85 PathProgramCache]: Analyzing trace with hash -489729425, now seen corresponding path program 1 times [2021-12-22 15:04:21,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:04:21,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759112189] [2021-12-22 15:04:21,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:04:21,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:04:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:22,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:04:22,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:22,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:22,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:22,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:22,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:22,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 15:04:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:22,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 15:04:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:22,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 15:04:22,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:22,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 15:04:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:22,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:04:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:22,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-22 15:04:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:22,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 15:04:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:22,262 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-22 15:04:22,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:04:22,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759112189] [2021-12-22 15:04:22,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759112189] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:04:22,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:04:22,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:04:22,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179215028] [2021-12-22 15:04:22,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:04:22,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:04:22,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:04:22,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:04:22,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:04:22,301 INFO L87 Difference]: Start difference. First operand has 2758 states, 1894 states have (on average 1.4614572333685323) internal successors, (2768), 2008 states have internal predecessors, (2768), 800 states have call successors, (800), 63 states have call predecessors, (800), 62 states have return successors, (797), 705 states have call predecessors, (797), 797 states have call successors, (797) Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-22 15:04:27,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:04:27,724 INFO L93 Difference]: Finished difference Result 5505 states and 8879 transitions. [2021-12-22 15:04:27,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 15:04:27,726 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 79 [2021-12-22 15:04:27,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:04:27,777 INFO L225 Difference]: With dead ends: 5505 [2021-12-22 15:04:27,777 INFO L226 Difference]: Without dead ends: 2719 [2021-12-22 15:04:27,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:04:27,835 INFO L933 BasicCegarLoop]: 4002 mSDtfsCounter, 1259 mSDsluCounter, 3745 mSDsCounter, 0 mSdLazyCounter, 2915 mSolverCounterSat, 1823 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1272 SdHoareTripleChecker+Valid, 7747 SdHoareTripleChecker+Invalid, 4738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1823 IncrementalHoareTripleChecker+Valid, 2915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:04:27,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1272 Valid, 7747 Invalid, 4738 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1823 Valid, 2915 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2021-12-22 15:04:27,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2021-12-22 15:04:28,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 2415. [2021-12-22 15:04:28,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2415 states, 1690 states have (on average 1.4585798816568047) internal successors, (2465), 1770 states have internal predecessors, (2465), 681 states have call successors, (681), 44 states have call predecessors, (681), 43 states have return successors, (678), 611 states have call predecessors, (678), 678 states have call successors, (678) [2021-12-22 15:04:28,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2415 states to 2415 states and 3824 transitions. [2021-12-22 15:04:28,123 INFO L78 Accepts]: Start accepts. Automaton has 2415 states and 3824 transitions. Word has length 79 [2021-12-22 15:04:28,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:04:28,123 INFO L470 AbstractCegarLoop]: Abstraction has 2415 states and 3824 transitions. [2021-12-22 15:04:28,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-22 15:04:28,124 INFO L276 IsEmpty]: Start isEmpty. Operand 2415 states and 3824 transitions. [2021-12-22 15:04:28,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-22 15:04:28,126 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:04:28,126 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:04:28,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 15:04:28,127 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:04:28,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:04:28,131 INFO L85 PathProgramCache]: Analyzing trace with hash 464210733, now seen corresponding path program 1 times [2021-12-22 15:04:28,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:04:28,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449234508] [2021-12-22 15:04:28,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:04:28,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:04:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:28,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:04:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:28,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:28,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:28,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:28,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 15:04:28,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:28,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 15:04:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:28,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 15:04:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:28,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 15:04:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:28,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:04:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:28,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-22 15:04:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:28,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 15:04:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:28,426 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-22 15:04:28,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:04:28,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449234508] [2021-12-22 15:04:28,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449234508] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:04:28,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:04:28,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:04:28,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061873327] [2021-12-22 15:04:28,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:04:28,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:04:28,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:04:28,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:04:28,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:04:28,432 INFO L87 Difference]: Start difference. First operand 2415 states and 3824 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-22 15:04:31,587 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:04:38,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:04:38,711 INFO L93 Difference]: Finished difference Result 7772 states and 12630 transitions. [2021-12-22 15:04:38,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:04:38,711 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 79 [2021-12-22 15:04:38,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:04:38,766 INFO L225 Difference]: With dead ends: 7772 [2021-12-22 15:04:38,766 INFO L226 Difference]: Without dead ends: 5381 [2021-12-22 15:04:38,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:04:38,798 INFO L933 BasicCegarLoop]: 4348 mSDtfsCounter, 6120 mSDsluCounter, 9520 mSDsCounter, 0 mSdLazyCounter, 5889 mSolverCounterSat, 3572 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6358 SdHoareTripleChecker+Valid, 13868 SdHoareTripleChecker+Invalid, 9462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3572 IncrementalHoareTripleChecker+Valid, 5889 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2021-12-22 15:04:38,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6358 Valid, 13868 Invalid, 9462 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3572 Valid, 5889 Invalid, 1 Unknown, 0 Unchecked, 9.8s Time] [2021-12-22 15:04:38,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5381 states. [2021-12-22 15:04:39,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5381 to 4777. [2021-12-22 15:04:39,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4777 states, 3346 states have (on average 1.4611476389719067) internal successors, (4889), 3504 states have internal predecessors, (4889), 1348 states have call successors, (1348), 83 states have call predecessors, (1348), 82 states have return successors, (1345), 1211 states have call predecessors, (1345), 1345 states have call successors, (1345) [2021-12-22 15:04:39,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4777 states to 4777 states and 7582 transitions. [2021-12-22 15:04:39,071 INFO L78 Accepts]: Start accepts. Automaton has 4777 states and 7582 transitions. Word has length 79 [2021-12-22 15:04:39,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:04:39,071 INFO L470 AbstractCegarLoop]: Abstraction has 4777 states and 7582 transitions. [2021-12-22 15:04:39,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-22 15:04:39,072 INFO L276 IsEmpty]: Start isEmpty. Operand 4777 states and 7582 transitions. [2021-12-22 15:04:39,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-22 15:04:39,075 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:04:39,075 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:04:39,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 15:04:39,076 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:04:39,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:04:39,076 INFO L85 PathProgramCache]: Analyzing trace with hash -770559364, now seen corresponding path program 1 times [2021-12-22 15:04:39,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:04:39,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792420013] [2021-12-22 15:04:39,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:04:39,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:04:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:39,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:04:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:39,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:39,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:39,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 15:04:39,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:39,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 15:04:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:39,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 15:04:39,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:39,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 15:04:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:39,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:04:39,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:39,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-22 15:04:39,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:39,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 15:04:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:39,404 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-22 15:04:39,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:04:39,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792420013] [2021-12-22 15:04:39,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792420013] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:04:39,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:04:39,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 15:04:39,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823929160] [2021-12-22 15:04:39,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:04:39,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 15:04:39,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:04:39,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 15:04:39,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-22 15:04:39,406 INFO L87 Difference]: Start difference. First operand 4777 states and 7582 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-22 15:04:40,809 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:04:41,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:04:47,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:04:47,235 INFO L93 Difference]: Finished difference Result 10133 states and 16383 transitions. [2021-12-22 15:04:47,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:04:47,235 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 82 [2021-12-22 15:04:47,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:04:47,292 INFO L225 Difference]: With dead ends: 10133 [2021-12-22 15:04:47,292 INFO L226 Difference]: Without dead ends: 5380 [2021-12-22 15:04:47,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-22 15:04:47,407 INFO L933 BasicCegarLoop]: 4041 mSDtfsCounter, 5424 mSDsluCounter, 7519 mSDsCounter, 0 mSdLazyCounter, 3988 mSolverCounterSat, 2086 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5651 SdHoareTripleChecker+Valid, 11560 SdHoareTripleChecker+Invalid, 6074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2086 IncrementalHoareTripleChecker+Valid, 3988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-12-22 15:04:47,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5651 Valid, 11560 Invalid, 6074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2086 Valid, 3988 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2021-12-22 15:04:47,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5380 states. [2021-12-22 15:04:47,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5380 to 4776. [2021-12-22 15:04:47,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4776 states, 3345 states have (on average 1.460388639760837) internal successors, (4885), 3503 states have internal predecessors, (4885), 1348 states have call successors, (1348), 83 states have call predecessors, (1348), 82 states have return successors, (1345), 1211 states have call predecessors, (1345), 1345 states have call successors, (1345) [2021-12-22 15:04:47,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4776 states to 4776 states and 7578 transitions. [2021-12-22 15:04:47,652 INFO L78 Accepts]: Start accepts. Automaton has 4776 states and 7578 transitions. Word has length 82 [2021-12-22 15:04:47,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:04:47,654 INFO L470 AbstractCegarLoop]: Abstraction has 4776 states and 7578 transitions. [2021-12-22 15:04:47,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-22 15:04:47,654 INFO L276 IsEmpty]: Start isEmpty. Operand 4776 states and 7578 transitions. [2021-12-22 15:04:47,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-22 15:04:47,659 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:04:47,659 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:04:47,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 15:04:47,659 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:04:47,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:04:47,660 INFO L85 PathProgramCache]: Analyzing trace with hash 599356899, now seen corresponding path program 1 times [2021-12-22 15:04:47,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:04:47,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221241402] [2021-12-22 15:04:47,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:04:47,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:04:47,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:47,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:04:47,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:47,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:47,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:47,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:47,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 15:04:47,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:47,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 15:04:47,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:47,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 15:04:47,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:47,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 15:04:47,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:47,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:04:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:47,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-22 15:04:47,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:47,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 15:04:47,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:47,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-22 15:04:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:47,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:47,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:47,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:47,982 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-12-22 15:04:47,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:04:47,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221241402] [2021-12-22 15:04:47,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221241402] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:04:47,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:04:47,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:04:47,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965494694] [2021-12-22 15:04:47,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:04:47,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:04:47,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:04:47,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:04:47,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:04:47,985 INFO L87 Difference]: Start difference. First operand 4776 states and 7578 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 15:04:52,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:04:52,580 INFO L93 Difference]: Finished difference Result 5382 states and 8832 transitions. [2021-12-22 15:04:52,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:04:52,580 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2021-12-22 15:04:52,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:04:52,630 INFO L225 Difference]: With dead ends: 5382 [2021-12-22 15:04:52,630 INFO L226 Difference]: Without dead ends: 5379 [2021-12-22 15:04:52,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:04:52,643 INFO L933 BasicCegarLoop]: 3579 mSDtfsCounter, 5325 mSDsluCounter, 3324 mSDsCounter, 0 mSdLazyCounter, 2864 mSolverCounterSat, 1970 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5546 SdHoareTripleChecker+Valid, 6903 SdHoareTripleChecker+Invalid, 4834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1970 IncrementalHoareTripleChecker+Valid, 2864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-12-22 15:04:52,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5546 Valid, 6903 Invalid, 4834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1970 Valid, 2864 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-12-22 15:04:52,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5379 states. [2021-12-22 15:04:52,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5379 to 4775. [2021-12-22 15:04:52,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4775 states, 3345 states have (on average 1.4600896860986547) internal successors, (4884), 3502 states have internal predecessors, (4884), 1347 states have call successors, (1347), 83 states have call predecessors, (1347), 82 states have return successors, (1345), 1211 states have call predecessors, (1345), 1345 states have call successors, (1345) [2021-12-22 15:04:52,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4775 states to 4775 states and 7576 transitions. [2021-12-22 15:04:52,906 INFO L78 Accepts]: Start accepts. Automaton has 4775 states and 7576 transitions. Word has length 106 [2021-12-22 15:04:52,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:04:52,906 INFO L470 AbstractCegarLoop]: Abstraction has 4775 states and 7576 transitions. [2021-12-22 15:04:52,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 15:04:52,907 INFO L276 IsEmpty]: Start isEmpty. Operand 4775 states and 7576 transitions. [2021-12-22 15:04:52,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-22 15:04:52,911 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:04:52,911 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:04:52,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 15:04:52,911 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:04:52,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:04:52,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1398746776, now seen corresponding path program 1 times [2021-12-22 15:04:52,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:04:52,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393817344] [2021-12-22 15:04:52,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:04:52,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:04:52,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:53,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:04:53,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:53,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:53,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:53,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:53,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:53,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 15:04:53,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:53,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 15:04:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:53,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 15:04:53,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:53,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 15:04:53,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:53,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:04:53,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:53,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-22 15:04:53,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:53,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 15:04:53,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:53,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-22 15:04:53,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:53,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:53,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:53,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:53,285 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-12-22 15:04:53,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:04:53,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393817344] [2021-12-22 15:04:53,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393817344] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:04:53,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:04:53,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:04:53,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359513502] [2021-12-22 15:04:53,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:04:53,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:04:53,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:04:53,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:04:53,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:04:53,287 INFO L87 Difference]: Start difference. First operand 4775 states and 7576 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 15:04:55,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:04:57,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:05:01,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:05:01,831 INFO L93 Difference]: Finished difference Result 5381 states and 8830 transitions. [2021-12-22 15:05:01,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:05:01,831 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 107 [2021-12-22 15:05:01,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:05:01,885 INFO L225 Difference]: With dead ends: 5381 [2021-12-22 15:05:01,886 INFO L226 Difference]: Without dead ends: 5378 [2021-12-22 15:05:01,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:05:01,898 INFO L933 BasicCegarLoop]: 3582 mSDtfsCounter, 4954 mSDsluCounter, 4919 mSDsCounter, 0 mSdLazyCounter, 4060 mSolverCounterSat, 1948 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5174 SdHoareTripleChecker+Valid, 8501 SdHoareTripleChecker+Invalid, 6008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1948 IncrementalHoareTripleChecker+Valid, 4060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-12-22 15:05:01,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5174 Valid, 8501 Invalid, 6008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1948 Valid, 4060 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2021-12-22 15:05:01,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5378 states. [2021-12-22 15:05:02,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5378 to 4774. [2021-12-22 15:05:02,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4774 states, 3345 states have (on average 1.4597907324364723) internal successors, (4883), 3501 states have internal predecessors, (4883), 1346 states have call successors, (1346), 83 states have call predecessors, (1346), 82 states have return successors, (1345), 1211 states have call predecessors, (1345), 1345 states have call successors, (1345) [2021-12-22 15:05:02,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4774 states to 4774 states and 7574 transitions. [2021-12-22 15:05:02,197 INFO L78 Accepts]: Start accepts. Automaton has 4774 states and 7574 transitions. Word has length 107 [2021-12-22 15:05:02,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:05:02,198 INFO L470 AbstractCegarLoop]: Abstraction has 4774 states and 7574 transitions. [2021-12-22 15:05:02,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 15:05:02,199 INFO L276 IsEmpty]: Start isEmpty. Operand 4774 states and 7574 transitions. [2021-12-22 15:05:02,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-22 15:05:02,200 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:05:02,200 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:05:02,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 15:05:02,201 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:05:02,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:05:02,201 INFO L85 PathProgramCache]: Analyzing trace with hash 410034054, now seen corresponding path program 1 times [2021-12-22 15:05:02,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:05:02,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829175341] [2021-12-22 15:05:02,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:05:02,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:05:02,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:05:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:02,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 15:05:02,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 15:05:02,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 15:05:02,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 15:05:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:05:02,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-22 15:05:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 15:05:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-22 15:05:02,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:02,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:02,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,467 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-12-22 15:05:02,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:05:02,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829175341] [2021-12-22 15:05:02,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829175341] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:05:02,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:05:02,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:05:02,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515970975] [2021-12-22 15:05:02,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:05:02,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:05:02,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:05:02,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:05:02,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:05:02,469 INFO L87 Difference]: Start difference. First operand 4774 states and 7574 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 15:05:04,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:05:09,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:05:09,107 INFO L93 Difference]: Finished difference Result 5378 states and 8827 transitions. [2021-12-22 15:05:09,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:05:09,107 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), 3 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2021-12-22 15:05:09,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:05:09,111 INFO L225 Difference]: With dead ends: 5378 [2021-12-22 15:05:09,111 INFO L226 Difference]: Without dead ends: 0 [2021-12-22 15:05:09,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:05:09,148 INFO L933 BasicCegarLoop]: 3577 mSDtfsCounter, 4944 mSDsluCounter, 4895 mSDsCounter, 0 mSdLazyCounter, 4059 mSolverCounterSat, 1945 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5172 SdHoareTripleChecker+Valid, 8472 SdHoareTripleChecker+Invalid, 6004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1945 IncrementalHoareTripleChecker+Valid, 4059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-12-22 15:05:09,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5172 Valid, 8472 Invalid, 6004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1945 Valid, 4059 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2021-12-22 15:05:09,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-22 15:05:09,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-22 15:05:09,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 15:05:09,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-22 15:05:09,150 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 108 [2021-12-22 15:05:09,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:05:09,150 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 15:05:09,150 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), 3 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 15:05:09,150 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-22 15:05:09,151 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-22 15:05:09,153 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-22 15:05:09,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 15:05:09,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.