./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 ae007674 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-ae00767 [2021-12-28 04:22:09,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 04:22:09,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 04:22:09,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 04:22:09,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 04:22:09,737 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 04:22:09,739 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 04:22:09,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 04:22:09,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 04:22:09,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 04:22:09,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 04:22:09,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 04:22:09,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 04:22:09,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 04:22:09,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 04:22:09,765 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 04:22:09,766 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 04:22:09,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 04:22:09,768 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 04:22:09,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 04:22:09,773 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 04:22:09,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 04:22:09,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 04:22:09,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 04:22:09,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 04:22:09,781 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 04:22:09,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 04:22:09,783 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 04:22:09,783 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 04:22:09,784 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 04:22:09,784 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 04:22:09,785 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 04:22:09,786 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 04:22:09,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 04:22:09,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 04:22:09,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 04:22:09,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 04:22:09,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 04:22:09,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 04:22:09,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 04:22:09,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 04:22:09,795 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 04:22:09,830 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 04:22:09,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 04:22:09,832 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 04:22:09,832 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 04:22:09,833 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 04:22:09,833 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 04:22:09,834 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 04:22:09,834 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 04:22:09,835 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 04:22:09,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 04:22:09,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 04:22:09,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 04:22:09,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 04:22:09,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 04:22:09,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 04:22:09,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 04:22:09,837 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 04:22:09,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 04:22:09,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 04:22:09,837 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 04:22:09,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 04:22:09,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:22:09,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 04:22:09,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 04:22:09,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 04:22:09,839 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 04:22:09,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 04:22:09,839 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 04:22:09,839 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 04:22:09,839 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 04:22:09,840 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eefd235ee9286fb26972c9330c15c8716ca6eda0b1c2e20434464e9f78c9f154 [2021-12-28 04:22:10,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 04:22:10,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 04:22:10,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 04:22:10,136 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 04:22:10,136 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 04:22:10,138 INFO L432 ainManager$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 [2021-12-28 04:22:10,201 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/708aa3dc0/23ca5adeeac54a1fac3e84256187338d/FLAGebe3f53b0 [2021-12-28 04:22:10,979 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 04:22:10,979 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 [2021-12-28 04:22:11,043 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/708aa3dc0/23ca5adeeac54a1fac3e84256187338d/FLAGebe3f53b0 [2021-12-28 04:22:11,509 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/708aa3dc0/23ca5adeeac54a1fac3e84256187338d [2021-12-28 04:22:11,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 04:22:11,512 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 04:22:11,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 04:22:11,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 04:22:11,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 04:22:11,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:22:11" (1/1) ... [2021-12-28 04:22:11,531 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@471b6ecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:22:11, skipping insertion in model container [2021-12-28 04:22:11,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:22:11" (1/1) ... [2021-12-28 04:22:11,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 04:22:11,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 04:22:13,545 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] [2021-12-28 04:22:13,657 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:22:13,685 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 04:22:14,369 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] [2021-12-28 04:22:14,375 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:22:14,511 INFO L208 MainTranslator]: Completed translation [2021-12-28 04:22:14,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:22:14 WrapperNode [2021-12-28 04:22:14,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 04:22:14,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 04:22:14,514 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 04:22:14,515 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 04:22:14,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:22:14" (1/1) ... [2021-12-28 04:22:14,627 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:22:14" (1/1) ... [2021-12-28 04:22:14,812 INFO L137 Inliner]: procedures = 276, calls = 3498, calls flagged for inlining = 107, calls inlined = 96, statements flattened = 6394 [2021-12-28 04:22:14,813 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 04:22:14,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 04:22:14,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 04:22:14,814 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 04:22:14,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:22:14" (1/1) ... [2021-12-28 04:22:14,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:22:14" (1/1) ... [2021-12-28 04:22:14,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:22:14" (1/1) ... [2021-12-28 04:22:14,883 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:22:14" (1/1) ... [2021-12-28 04:22:15,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:22:14" (1/1) ... [2021-12-28 04:22:15,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:22:14" (1/1) ... [2021-12-28 04:22:15,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:22:14" (1/1) ... [2021-12-28 04:22:15,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 04:22:15,227 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 04:22:15,227 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 04:22:15,227 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 04:22:15,228 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:22:14" (1/1) ... [2021-12-28 04:22:15,234 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:22:15,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:22:15,260 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) [2021-12-28 04:22:15,285 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 [2021-12-28 04:22:15,299 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_set_fw_ps_tdma [2021-12-28 04:22:15,300 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_set_fw_ps_tdma [2021-12-28 04:22:15,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 04:22:15,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 04:22:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-28 04:22:15,301 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-28 04:22:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_word [2021-12-28 04:22:15,301 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_word [2021-12-28 04:22:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_nomal_low_power [2021-12-28 04:22:15,301 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_nomal_low_power [2021-12-28 04:22:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_byte [2021-12-28 04:22:15,302 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_byte [2021-12-28 04:22:15,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 04:22:15,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 04:22:15,302 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_is_wifi_uplink [2021-12-28 04:22:15,302 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_is_wifi_uplink [2021-12-28 04:22:15,302 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_word [2021-12-28 04:22:15,303 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_word [2021-12-28 04:22:15,303 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_wifioff_hwcfg [2021-12-28 04:22:15,303 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_wifioff_hwcfg [2021-12-28 04:22:15,303 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_byte [2021-12-28 04:22:15,303 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_byte [2021-12-28 04:22:15,304 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~$Pointer$~TO~VOID [2021-12-28 04:22:15,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~$Pointer$~TO~VOID [2021-12-28 04:22:15,304 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 04:22:15,304 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 04:22:15,304 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_lps_notify [2021-12-28 04:22:15,304 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_lps_notify [2021-12-28 04:22:15,304 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_ps_tdma [2021-12-28 04:22:15,305 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_ps_tdma [2021-12-28 04:22:15,305 INFO L130 BoogieDeclarations]: Found specification of procedure ex_btc8723b2ant_media_status_notify [2021-12-28 04:22:15,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ex_btc8723b2ant_media_status_notify [2021-12-28 04:22:15,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 04:22:15,305 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_tdma_duration_adjust [2021-12-28 04:22:15,305 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_tdma_duration_adjust [2021-12-28 04:22:15,305 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_ignore_wlan_act [2021-12-28 04:22:15,306 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_ignore_wlan_act [2021-12-28 04:22:15,306 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_dword [2021-12-28 04:22:15,306 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_dword [2021-12-28 04:22:15,306 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_read_4byte [2021-12-28 04:22:15,307 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_read_4byte [2021-12-28 04:22:15,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 04:22:15,307 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_write_4byte [2021-12-28 04:22:15,307 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_write_4byte [2021-12-28 04:22:15,307 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_get_wifi_rssi [2021-12-28 04:22:15,307 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_get_wifi_rssi [2021-12-28 04:22:15,308 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u16~0~TO~VOID [2021-12-28 04:22:15,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u16~0~TO~VOID [2021-12-28 04:22:15,308 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_scan_notify [2021-12-28 04:22:15,308 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_scan_notify [2021-12-28 04:22:15,308 INFO L130 BoogieDeclarations]: Found specification of procedure ex_btc8723b2ant_init_hwconfig [2021-12-28 04:22:15,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ex_btc8723b2ant_init_hwconfig [2021-12-28 04:22:15,309 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_leave_low_power [2021-12-28 04:22:15,309 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_leave_low_power [2021-12-28 04:22:15,309 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2021-12-28 04:22:15,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2021-12-28 04:22:15,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 04:22:15,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 04:22:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_connect_notify [2021-12-28 04:22:15,311 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_connect_notify [2021-12-28 04:22:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_wifi_rssi_state [2021-12-28 04:22:15,312 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_wifi_rssi_state [2021-12-28 04:22:15,312 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u8~0~TO~VOID [2021-12-28 04:22:15,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u8~0~TO~VOID [2021-12-28 04:22:15,312 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_dec_bt_pwr [2021-12-28 04:22:15,312 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_dec_bt_pwr [2021-12-28 04:22:15,312 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_set_dac_swing_reg [2021-12-28 04:22:15,312 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_set_dac_swing_reg [2021-12-28 04:22:15,313 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2021-12-28 04:22:15,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2021-12-28 04:22:15,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 04:22:15,313 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_set_ant_path [2021-12-28 04:22:15,313 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_set_ant_path [2021-12-28 04:22:15,314 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_init_coex_dm [2021-12-28 04:22:15,314 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_init_coex_dm [2021-12-28 04:22:15,314 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_coex_alloff [2021-12-28 04:22:15,314 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_coex_alloff [2021-12-28 04:22:15,314 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~~u32~0~X~~u32~0~TO~VOID [2021-12-28 04:22:15,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~~u32~0~X~~u32~0~TO~VOID [2021-12-28 04:22:15,315 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_bt_rssi_state [2021-12-28 04:22:15,315 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_bt_rssi_state [2021-12-28 04:22:15,315 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b_coex_tbl_type [2021-12-28 04:22:15,315 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b_coex_tbl_type [2021-12-28 04:22:15,315 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2021-12-28 04:22:15,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2021-12-28 04:22:15,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 04:22:15,316 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_enter_lps [2021-12-28 04:22:15,316 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_enter_lps [2021-12-28 04:22:15,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 04:22:15,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 04:22:15,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-28 04:22:15,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-28 04:22:15,317 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2021-12-28 04:22:15,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2021-12-28 04:22:15,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 04:22:15,318 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_read_1byte [2021-12-28 04:22:15,318 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_read_1byte [2021-12-28 04:22:15,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-28 04:22:15,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-28 04:22:15,319 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_is_bt_coexist_available [2021-12-28 04:22:15,319 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_is_bt_coexist_available [2021-12-28 04:22:15,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 04:22:15,320 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_sw_mechanism1 [2021-12-28 04:22:15,320 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_sw_mechanism1 [2021-12-28 04:22:15,320 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_sw_mechanism2 [2021-12-28 04:22:15,320 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_sw_mechanism2 [2021-12-28 04:22:15,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 04:22:15,321 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_fw_dac_swing_lvl [2021-12-28 04:22:15,321 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_fw_dac_swing_lvl [2021-12-28 04:22:15,321 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-28 04:22:15,321 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_fill_h2c_cmd [2021-12-28 04:22:15,321 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_fill_h2c_cmd [2021-12-28 04:22:15,321 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b_need_dec_pwr [2021-12-28 04:22:15,322 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b_need_dec_pwr [2021-12-28 04:22:15,322 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_coex_table [2021-12-28 04:22:15,322 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_coex_table [2021-12-28 04:22:15,322 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_leave_lps [2021-12-28 04:22:15,322 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_leave_lps [2021-12-28 04:22:15,323 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_run_coexist_mechanism [2021-12-28 04:22:15,323 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_run_coexist_mechanism [2021-12-28 04:22:15,325 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~~bool~0 [2021-12-28 04:22:15,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~~bool~0 [2021-12-28 04:22:15,326 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_ips_notify [2021-12-28 04:22:15,326 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_ips_notify [2021-12-28 04:22:15,327 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_special_packet_notify [2021-12-28 04:22:15,328 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_special_packet_notify [2021-12-28 04:22:15,328 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_dword [2021-12-28 04:22:15,328 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_dword [2021-12-28 04:22:15,328 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_write_2byte [2021-12-28 04:22:15,333 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_write_2byte [2021-12-28 04:22:15,333 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_read_2byte [2021-12-28 04:22:15,333 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_read_2byte [2021-12-28 04:22:15,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 04:22:15,334 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_set [2021-12-28 04:22:15,334 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_set [2021-12-28 04:22:15,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 04:22:15,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 04:22:15,334 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-12-28 04:22:15,334 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-12-28 04:22:16,059 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 04:22:16,062 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 04:22:17,528 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 04:22:21,901 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 04:22:21,933 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 04:22:21,933 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-28 04:22:21,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:22:21 BoogieIcfgContainer [2021-12-28 04:22:21,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 04:22:21,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 04:22:21,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 04:22:21,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 04:22:21,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:22:11" (1/3) ... [2021-12-28 04:22:21,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7400cb29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:22:21, skipping insertion in model container [2021-12-28 04:22:21,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:22:14" (2/3) ... [2021-12-28 04:22:21,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7400cb29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:22:21, skipping insertion in model container [2021-12-28 04:22:21,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:22:21" (3/3) ... [2021-12-28 04:22:21,944 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 [2021-12-28 04:22:21,948 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 04:22:21,948 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 04:22:22,002 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 04:22:22,008 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 [2021-12-28 04:22:22,008 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 04:22:22,135 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) [2021-12-28 04:22:22,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-28 04:22:22,143 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:22:22,143 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] [2021-12-28 04:22:22,144 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:22:22,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:22:22,153 INFO L85 PathProgramCache]: Analyzing trace with hash -489729425, now seen corresponding path program 1 times [2021-12-28 04:22:22,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:22:22,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415657220] [2021-12-28 04:22:22,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:22:22,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:22:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:22,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:22:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:22,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:22:22,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:22,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:22:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:22,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 04:22:22,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:22,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 04:22:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:22,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 04:22:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:22,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 04:22:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:22,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:22:22,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:22,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-28 04:22:22,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:22,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 04:22:22,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:22,987 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-28 04:22:22,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:22:22,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415657220] [2021-12-28 04:22:22,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415657220] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:22:22,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:22:22,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 04:22:22,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79473187] [2021-12-28 04:22:22,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:22:22,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 04:22:22,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:22:23,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 04:22:23,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:22:23,035 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) [2021-12-28 04:22:29,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:22:29,072 INFO L93 Difference]: Finished difference Result 5505 states and 8879 transitions. [2021-12-28 04:22:29,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 04:22:29,075 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 [2021-12-28 04:22:29,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:22:29,132 INFO L225 Difference]: With dead ends: 5505 [2021-12-28 04:22:29,132 INFO L226 Difference]: Without dead ends: 2719 [2021-12-28 04:22:29,204 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 [2021-12-28 04:22:29,208 INFO L933 BasicCegarLoop]: 4000 mSDtfsCounter, 1259 mSDsluCounter, 3741 mSDsCounter, 0 mSdLazyCounter, 2915 mSolverCounterSat, 1823 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1272 SdHoareTripleChecker+Valid, 7741 SdHoareTripleChecker+Invalid, 4738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1823 IncrementalHoareTripleChecker+Valid, 2915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-12-28 04:22:29,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1272 Valid, 7741 Invalid, 4738 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1823 Valid, 2915 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2021-12-28 04:22:29,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2021-12-28 04:22:29,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 2415. [2021-12-28 04:22:29,464 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) [2021-12-28 04:22:29,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2415 states to 2415 states and 3824 transitions. [2021-12-28 04:22:29,501 INFO L78 Accepts]: Start accepts. Automaton has 2415 states and 3824 transitions. Word has length 79 [2021-12-28 04:22:29,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:22:29,501 INFO L470 AbstractCegarLoop]: Abstraction has 2415 states and 3824 transitions. [2021-12-28 04:22:29,501 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) [2021-12-28 04:22:29,502 INFO L276 IsEmpty]: Start isEmpty. Operand 2415 states and 3824 transitions. [2021-12-28 04:22:29,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-28 04:22:29,504 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:22:29,505 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] [2021-12-28 04:22:29,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 04:22:29,505 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:22:29,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:22:29,506 INFO L85 PathProgramCache]: Analyzing trace with hash 464210733, now seen corresponding path program 1 times [2021-12-28 04:22:29,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:22:29,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54016605] [2021-12-28 04:22:29,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:22:29,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:22:29,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:29,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:22:29,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:29,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:22:29,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:29,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:22:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:29,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 04:22:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:29,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 04:22:29,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:29,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 04:22:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:29,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 04:22:29,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:29,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:22:29,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:29,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-28 04:22:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:29,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 04:22:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:29,928 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-28 04:22:29,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:22:29,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54016605] [2021-12-28 04:22:29,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54016605] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:22:29,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:22:29,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:22:29,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745787840] [2021-12-28 04:22:29,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:22:29,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:22:29,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:22:29,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:22:29,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:22:29,934 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) [2021-12-28 04:22:39,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:22:39,978 INFO L93 Difference]: Finished difference Result 7772 states and 12630 transitions. [2021-12-28 04:22:39,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:22:39,979 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 [2021-12-28 04:22:39,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:22:40,067 INFO L225 Difference]: With dead ends: 7772 [2021-12-28 04:22:40,067 INFO L226 Difference]: Without dead ends: 5381 [2021-12-28 04:22:40,109 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 [2021-12-28 04:22:40,110 INFO L933 BasicCegarLoop]: 4335 mSDtfsCounter, 6120 mSDsluCounter, 9193 mSDsCounter, 0 mSdLazyCounter, 6175 mSolverCounterSat, 3572 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6368 SdHoareTripleChecker+Valid, 13528 SdHoareTripleChecker+Invalid, 9747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3572 IncrementalHoareTripleChecker+Valid, 6175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-12-28 04:22:40,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6368 Valid, 13528 Invalid, 9747 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3572 Valid, 6175 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2021-12-28 04:22:40,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5381 states. [2021-12-28 04:22:40,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5381 to 4777. [2021-12-28 04:22:40,393 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) [2021-12-28 04:22:40,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4777 states to 4777 states and 7582 transitions. [2021-12-28 04:22:40,432 INFO L78 Accepts]: Start accepts. Automaton has 4777 states and 7582 transitions. Word has length 79 [2021-12-28 04:22:40,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:22:40,432 INFO L470 AbstractCegarLoop]: Abstraction has 4777 states and 7582 transitions. [2021-12-28 04:22:40,433 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) [2021-12-28 04:22:40,433 INFO L276 IsEmpty]: Start isEmpty. Operand 4777 states and 7582 transitions. [2021-12-28 04:22:40,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-28 04:22:40,439 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:22:40,440 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] [2021-12-28 04:22:40,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 04:22:40,440 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:22:40,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:22:40,441 INFO L85 PathProgramCache]: Analyzing trace with hash -770559364, now seen corresponding path program 1 times [2021-12-28 04:22:40,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:22:40,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657435499] [2021-12-28 04:22:40,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:22:40,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:22:40,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:40,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:22:40,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:40,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:22:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:40,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:22:40,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:40,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 04:22:40,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:40,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 04:22:40,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:40,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 04:22:40,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:40,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 04:22:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:40,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:22:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:40,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-28 04:22:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:40,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 04:22:40,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:40,809 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-28 04:22:40,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:22:40,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657435499] [2021-12-28 04:22:40,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657435499] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:22:40,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:22:40,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 04:22:40,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687126764] [2021-12-28 04:22:40,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:22:40,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 04:22:40,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:22:40,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 04:22:40,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:22:40,812 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) [2021-12-28 04:22:42,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:22:49,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:22:49,635 INFO L93 Difference]: Finished difference Result 10133 states and 16383 transitions. [2021-12-28 04:22:49,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 04:22:49,639 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 [2021-12-28 04:22:49,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:22:49,707 INFO L225 Difference]: With dead ends: 10133 [2021-12-28 04:22:49,708 INFO L226 Difference]: Without dead ends: 5380 [2021-12-28 04:22:49,757 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 [2021-12-28 04:22:49,758 INFO L933 BasicCegarLoop]: 4037 mSDtfsCounter, 5424 mSDsluCounter, 7236 mSDsCounter, 0 mSdLazyCounter, 4262 mSolverCounterSat, 2084 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5655 SdHoareTripleChecker+Valid, 11273 SdHoareTripleChecker+Invalid, 6346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2084 IncrementalHoareTripleChecker+Valid, 4262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2021-12-28 04:22:49,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5655 Valid, 11273 Invalid, 6346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2084 Valid, 4262 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2021-12-28 04:22:49,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5380 states. [2021-12-28 04:22:50,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5380 to 4776. [2021-12-28 04:22:50,112 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) [2021-12-28 04:22:50,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4776 states to 4776 states and 7578 transitions. [2021-12-28 04:22:50,153 INFO L78 Accepts]: Start accepts. Automaton has 4776 states and 7578 transitions. Word has length 82 [2021-12-28 04:22:50,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:22:50,155 INFO L470 AbstractCegarLoop]: Abstraction has 4776 states and 7578 transitions. [2021-12-28 04:22:50,156 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) [2021-12-28 04:22:50,156 INFO L276 IsEmpty]: Start isEmpty. Operand 4776 states and 7578 transitions. [2021-12-28 04:22:50,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-28 04:22:50,160 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:22:50,161 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] [2021-12-28 04:22:50,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 04:22:50,161 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:22:50,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:22:50,162 INFO L85 PathProgramCache]: Analyzing trace with hash 599356899, now seen corresponding path program 1 times [2021-12-28 04:22:50,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:22:50,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055001658] [2021-12-28 04:22:50,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:22:50,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:22:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:50,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:22:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:50,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:22:50,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:50,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:22:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:50,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 04:22:50,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:50,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 04:22:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:50,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 04:22:50,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:50,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 04:22:50,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:50,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:22:50,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:50,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-28 04:22:50,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:50,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 04:22:50,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:50,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 04:22:50,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:50,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:22:50,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:50,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:22:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:50,535 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-12-28 04:22:50,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:22:50,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055001658] [2021-12-28 04:22:50,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055001658] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:22:50,536 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:22:50,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:22:50,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166964886] [2021-12-28 04:22:50,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:22:50,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:22:50,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:22:50,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:22:50,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:22:50,539 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) [2021-12-28 04:22:55,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:22:55,371 INFO L93 Difference]: Finished difference Result 5382 states and 8832 transitions. [2021-12-28 04:22:55,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:22:55,372 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 [2021-12-28 04:22:55,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:22:55,431 INFO L225 Difference]: With dead ends: 5382 [2021-12-28 04:22:55,432 INFO L226 Difference]: Without dead ends: 5379 [2021-12-28 04:22:55,442 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 [2021-12-28 04:22:55,442 INFO L933 BasicCegarLoop]: 3576 mSDtfsCounter, 5325 mSDsluCounter, 3318 mSDsCounter, 0 mSdLazyCounter, 2864 mSolverCounterSat, 1970 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5549 SdHoareTripleChecker+Valid, 6894 SdHoareTripleChecker+Invalid, 4834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1970 IncrementalHoareTripleChecker+Valid, 2864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-12-28 04:22:55,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5549 Valid, 6894 Invalid, 4834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1970 Valid, 2864 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-12-28 04:22:55,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5379 states. [2021-12-28 04:22:55,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5379 to 4775. [2021-12-28 04:22:55,766 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) [2021-12-28 04:22:55,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4775 states to 4775 states and 7576 transitions. [2021-12-28 04:22:55,804 INFO L78 Accepts]: Start accepts. Automaton has 4775 states and 7576 transitions. Word has length 106 [2021-12-28 04:22:55,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:22:55,805 INFO L470 AbstractCegarLoop]: Abstraction has 4775 states and 7576 transitions. [2021-12-28 04:22:55,805 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) [2021-12-28 04:22:55,805 INFO L276 IsEmpty]: Start isEmpty. Operand 4775 states and 7576 transitions. [2021-12-28 04:22:55,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-28 04:22:55,811 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:22:55,811 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] [2021-12-28 04:22:55,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 04:22:55,812 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:22:55,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:22:55,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1398746776, now seen corresponding path program 1 times [2021-12-28 04:22:55,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:22:55,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077118171] [2021-12-28 04:22:55,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:22:55,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:22:55,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:56,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:22:56,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:56,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:22:56,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:56,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:22:56,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:56,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 04:22:56,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:56,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 04:22:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:56,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 04:22:56,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:56,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 04:22:56,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:56,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:22:56,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:56,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-28 04:22:56,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:56,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 04:22:56,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:56,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 04:22:56,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:56,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:22:56,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:56,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:22:56,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:22:56,241 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-12-28 04:22:56,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:22:56,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077118171] [2021-12-28 04:22:56,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077118171] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:22:56,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:22:56,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:22:56,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529641391] [2021-12-28 04:22:56,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:22:56,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:22:56,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:22:56,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:22:56,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:22:56,244 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) [2021-12-28 04:22:57,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:22:59,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:23:04,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:23:04,102 INFO L93 Difference]: Finished difference Result 5381 states and 8830 transitions. [2021-12-28 04:23:04,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:23:04,103 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 [2021-12-28 04:23:04,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:23:04,157 INFO L225 Difference]: With dead ends: 5381 [2021-12-28 04:23:04,158 INFO L226 Difference]: Without dead ends: 5378 [2021-12-28 04:23:04,167 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 [2021-12-28 04:23:04,168 INFO L933 BasicCegarLoop]: 3580 mSDtfsCounter, 4954 mSDsluCounter, 4913 mSDsCounter, 0 mSdLazyCounter, 4060 mSolverCounterSat, 1948 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5176 SdHoareTripleChecker+Valid, 8493 SdHoareTripleChecker+Invalid, 6008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1948 IncrementalHoareTripleChecker+Valid, 4060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-12-28 04:23:04,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5176 Valid, 8493 Invalid, 6008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1948 Valid, 4060 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2021-12-28 04:23:04,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5378 states. [2021-12-28 04:23:04,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5378 to 4774. [2021-12-28 04:23:04,429 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) [2021-12-28 04:23:04,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4774 states to 4774 states and 7574 transitions. [2021-12-28 04:23:04,467 INFO L78 Accepts]: Start accepts. Automaton has 4774 states and 7574 transitions. Word has length 107 [2021-12-28 04:23:04,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:23:04,468 INFO L470 AbstractCegarLoop]: Abstraction has 4774 states and 7574 transitions. [2021-12-28 04:23:04,468 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) [2021-12-28 04:23:04,469 INFO L276 IsEmpty]: Start isEmpty. Operand 4774 states and 7574 transitions. [2021-12-28 04:23:04,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-28 04:23:04,470 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:23:04,470 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] [2021-12-28 04:23:04,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 04:23:04,471 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:23:04,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:23:04,471 INFO L85 PathProgramCache]: Analyzing trace with hash 410034054, now seen corresponding path program 1 times [2021-12-28 04:23:04,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:23:04,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591487873] [2021-12-28 04:23:04,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:23:04,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:23:04,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:23:04,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:23:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:23:04,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:23:04,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:23:04,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:23:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:23:04,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 04:23:04,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:23:04,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 04:23:04,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:23:04,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 04:23:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:23:04,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 04:23:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:23:04,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 04:23:04,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:23:04,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-28 04:23:04,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:23:04,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 04:23:04,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:23:04,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 04:23:04,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:23:04,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:23:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:23:04,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:23:04,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:23:04,775 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-12-28 04:23:04,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:23:04,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591487873] [2021-12-28 04:23:04,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591487873] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:23:04,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:23:04,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:23:04,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097739193] [2021-12-28 04:23:04,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:23:04,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:23:04,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:23:04,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:23:04,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:23:04,777 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) [2021-12-28 04:23:07,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []