./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-43_2a-drivers--isdn--gigaset--bas_gigaset.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-43_2a-drivers--isdn--gigaset--bas_gigaset.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 4b829e0b1083ca135908ac8582697cf0831b43587b46e1b9cc42429c7a2c7866 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 04:26:56,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 04:26:56,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 04:26:56,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 04:26:56,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 04:26:56,788 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 04:26:56,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 04:26:56,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 04:26:56,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 04:26:56,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 04:26:56,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 04:26:56,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 04:26:56,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 04:26:56,801 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 04:26:56,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 04:26:56,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 04:26:56,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 04:26:56,809 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 04:26:56,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 04:26:56,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 04:26:56,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 04:26:56,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 04:26:56,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 04:26:56,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 04:26:56,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 04:26:56,828 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 04:26:56,828 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 04:26:56,829 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 04:26:56,830 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 04:26:56,830 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 04:26:56,831 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 04:26:56,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 04:26:56,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 04:26:56,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 04:26:56,836 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 04:26:56,836 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 04:26:56,837 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 04:26:56,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 04:26:56,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 04:26:56,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 04:26:56,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 04:26:56,840 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 04:26:56,866 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 04:26:56,866 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 04:26:56,867 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 04:26:56,868 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 04:26:56,868 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 04:26:56,869 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 04:26:56,870 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 04:26:56,870 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 04:26:56,870 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 04:26:56,870 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 04:26:56,871 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 04:26:56,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 04:26:56,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 04:26:56,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 04:26:56,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 04:26:56,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 04:26:56,873 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 04:26:56,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 04:26:56,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 04:26:56,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 04:26:56,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 04:26:56,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:26:56,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 04:26:56,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 04:26:56,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 04:26:56,874 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 04:26:56,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 04:26:56,875 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 04:26:56,875 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 04:26:56,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 04:26:56,875 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b829e0b1083ca135908ac8582697cf0831b43587b46e1b9cc42429c7a2c7866 [2021-12-28 04:26:57,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 04:26:57,156 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 04:26:57,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 04:26:57,159 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 04:26:57,170 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 04:26:57,171 INFO L432 ainManager$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-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2021-12-28 04:26:57,219 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91897c1df/983ec2fa9370434c9625a89f7138668f/FLAGbe87d961c [2021-12-28 04:26:57,915 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 04:26:57,915 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2021-12-28 04:26:57,962 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91897c1df/983ec2fa9370434c9625a89f7138668f/FLAGbe87d961c [2021-12-28 04:26:58,013 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91897c1df/983ec2fa9370434c9625a89f7138668f [2021-12-28 04:26:58,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 04:26:58,021 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 04:26:58,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 04:26:58,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 04:26:58,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 04:26:58,026 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:26:58" (1/1) ... [2021-12-28 04:26:58,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2626d81e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:26:58, skipping insertion in model container [2021-12-28 04:26:58,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:26:58" (1/1) ... [2021-12-28 04:26:58,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 04:26:58,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 04:27:00,315 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-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i[378939,378952] [2021-12-28 04:27:00,377 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:27:00,477 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 04:27:00,842 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-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i[378939,378952] [2021-12-28 04:27:00,847 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:27:00,978 INFO L208 MainTranslator]: Completed translation [2021-12-28 04:27:00,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:27:00 WrapperNode [2021-12-28 04:27:00,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 04:27:00,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 04:27:00,981 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 04:27:00,981 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 04:27:01,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:27:00" (1/1) ... [2021-12-28 04:27:01,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:27:00" (1/1) ... [2021-12-28 04:27:01,352 INFO L137 Inliner]: procedures = 341, calls = 3940, calls flagged for inlining = 136, calls inlined = 92, statements flattened = 5421 [2021-12-28 04:27:01,352 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 04:27:01,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 04:27:01,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 04:27:01,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 04:27:01,359 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:27:00" (1/1) ... [2021-12-28 04:27:01,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:27:00" (1/1) ... [2021-12-28 04:27:01,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:27:00" (1/1) ... [2021-12-28 04:27:01,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:27:00" (1/1) ... [2021-12-28 04:27:01,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:27:00" (1/1) ... [2021-12-28 04:27:01,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:27:00" (1/1) ... [2021-12-28 04:27:01,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:27:00" (1/1) ... [2021-12-28 04:27:01,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 04:27:01,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 04:27:01,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 04:27:01,667 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 04:27:01,668 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:27:00" (1/1) ... [2021-12-28 04:27:01,674 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:27:01,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:27:01,702 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 04:27:01,747 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 04:27:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2021-12-28 04:27:01,761 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2021-12-28 04:27:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freebcshw [2021-12-28 04:27:01,761 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freebcshw [2021-12-28 04:27:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-28 04:27:01,762 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-28 04:27:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_modem_ctrl [2021-12-28 04:27:01,762 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_modem_ctrl [2021-12-28 04:27:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-28 04:27:01,762 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-28 04:27:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_reinitbcshw [2021-12-28 04:27:01,762 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_reinitbcshw [2021-12-28 04:27:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 04:27:01,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 04:27:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-28 04:27:01,763 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-28 04:27:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2021-12-28 04:27:01,763 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2021-12-28 04:27:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_brkchars [2021-12-28 04:27:01,763 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_brkchars [2021-12-28 04:27:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2021-12-28 04:27:01,763 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2021-12-28 04:27:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2021-12-28 04:27:01,764 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2021-12-28 04:27:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-28 04:27:01,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-28 04:27:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 04:27:01,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 04:27:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_close_bchannel [2021-12-28 04:27:01,764 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_close_bchannel [2021-12-28 04:27:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_resume [2021-12-28 04:27:01,765 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_resume [2021-12-28 04:27:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_baud_rate [2021-12-28 04:27:01,765 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_baud_rate [2021-12-28 04:27:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure freeurbs [2021-12-28 04:27:01,765 INFO L138 BoogieDeclarations]: Found implementation of procedure freeurbs [2021-12-28 04:27:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_bchannel_down [2021-12-28 04:27:01,765 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_bchannel_down [2021-12-28 04:27:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-12-28 04:27:01,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-12-28 04:27:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 04:27:01,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 04:27:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure start_cbsend [2021-12-28 04:27:01,766 INFO L138 BoogieDeclarations]: Found implementation of procedure start_cbsend [2021-12-28 04:27:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-28 04:27:01,766 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-28 04:27:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2021-12-28 04:27:01,767 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2021-12-28 04:27:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 04:27:01,767 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 04:27:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-12-28 04:27:01,767 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-12-28 04:27:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_line_ctrl [2021-12-28 04:27:01,767 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_line_ctrl [2021-12-28 04:27:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2021-12-28 04:27:01,768 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2021-12-28 04:27:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure usb_queue_reset_device [2021-12-28 04:27:01,768 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_queue_reset_device [2021-12-28 04:27:01,769 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 04:27:01,769 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 04:27:01,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2021-12-28 04:27:01,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2021-12-28 04:27:01,769 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_room [2021-12-28 04:27:01,770 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_room [2021-12-28 04:27:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2021-12-28 04:27:01,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2021-12-28 04:27:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_3 [2021-12-28 04:27:01,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_3 [2021-12-28 04:27:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 04:27:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_5 [2021-12-28 04:27:01,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_5 [2021-12-28 04:27:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-28 04:27:01,771 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-28 04:27:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2021-12-28 04:27:01,771 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2021-12-28 04:27:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure check_pending [2021-12-28 04:27:01,771 INFO L138 BoogieDeclarations]: Found implementation of procedure check_pending [2021-12-28 04:27:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-28 04:27:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 04:27:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure error_hangup [2021-12-28 04:27:01,771 INFO L138 BoogieDeclarations]: Found implementation of procedure error_hangup [2021-12-28 04:27:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freedriver [2021-12-28 04:27:01,772 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freedriver [2021-12-28 04:27:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_send_skb [2021-12-28 04:27:01,772 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_send_skb [2021-12-28 04:27:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_chars_in_buffer [2021-12-28 04:27:01,772 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_chars_in_buffer [2021-12-28 04:27:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 04:27:01,772 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 04:27:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure req_submit [2021-12-28 04:27:01,773 INFO L138 BoogieDeclarations]: Found implementation of procedure req_submit [2021-12-28 04:27:01,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 04:27:01,773 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2021-12-28 04:27:01,773 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2021-12-28 04:27:01,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 04:27:01,773 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2021-12-28 04:27:01,773 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2021-12-28 04:27:01,773 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-12-28 04:27:01,773 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-12-28 04:27:01,774 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-28 04:27:01,774 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-28 04:27:01,774 INFO L130 BoogieDeclarations]: Found specification of procedure complete_cb [2021-12-28 04:27:01,774 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_cb [2021-12-28 04:27:01,774 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-28 04:27:01,774 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-28 04:27:01,774 INFO L130 BoogieDeclarations]: Found specification of procedure stopurbs [2021-12-28 04:27:01,774 INFO L138 BoogieDeclarations]: Found implementation of procedure stopurbs [2021-12-28 04:27:01,774 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecshw [2021-12-28 04:27:01,775 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecshw [2021-12-28 04:27:01,775 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-28 04:27:01,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-28 04:27:01,775 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2021-12-28 04:27:01,775 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2021-12-28 04:27:01,775 INFO L130 BoogieDeclarations]: Found specification of procedure int_in_work [2021-12-28 04:27:01,775 INFO L138 BoogieDeclarations]: Found implementation of procedure int_in_work [2021-12-28 04:27:01,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 04:27:01,775 INFO L130 BoogieDeclarations]: Found specification of procedure dump_urb [2021-12-28 04:27:01,776 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_urb [2021-12-28 04:27:01,776 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-28 04:27:01,776 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-28 04:27:01,776 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-28 04:27:01,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-28 04:27:01,776 INFO L130 BoogieDeclarations]: Found specification of procedure atwrite_submit [2021-12-28 04:27:01,776 INFO L138 BoogieDeclarations]: Found implementation of procedure atwrite_submit [2021-12-28 04:27:01,776 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_3 [2021-12-28 04:27:01,777 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_3 [2021-12-28 04:27:01,777 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-28 04:27:01,777 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-28 04:27:01,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-28 04:27:01,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-28 04:27:01,777 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-12-28 04:27:01,777 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-12-28 04:27:01,777 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcshw [2021-12-28 04:27:01,777 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcshw [2021-12-28 04:27:01,778 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 04:27:01,778 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 04:27:01,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 04:27:01,778 INFO L130 BoogieDeclarations]: Found specification of procedure get_usb_rcmsg [2021-12-28 04:27:01,778 INFO L138 BoogieDeclarations]: Found implementation of procedure get_usb_rcmsg [2021-12-28 04:27:01,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 04:27:01,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 04:27:01,778 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initbcshw [2021-12-28 04:27:01,778 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initbcshw [2021-12-28 04:27:01,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-28 04:27:01,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-28 04:27:01,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 04:27:01,779 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-28 04:27:01,779 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-28 04:27:01,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-28 04:27:01,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-28 04:27:01,779 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2021-12-28 04:27:01,779 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2021-12-28 04:27:01,779 INFO L130 BoogieDeclarations]: Found specification of procedure error_reset [2021-12-28 04:27:01,780 INFO L138 BoogieDeclarations]: Found implementation of procedure error_reset [2021-12-28 04:27:01,780 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_input [2021-12-28 04:27:01,780 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_input [2021-12-28 04:27:01,780 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecs [2021-12-28 04:27:01,780 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecs [2021-12-28 04:27:01,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 04:27:01,780 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_suspend [2021-12-28 04:27:01,780 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_suspend [2021-12-28 04:27:01,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 04:27:01,781 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2021-12-28 04:27:01,781 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2021-12-28 04:27:01,781 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-12-28 04:27:01,781 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-12-28 04:27:01,781 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-12-28 04:27:01,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-12-28 04:27:01,781 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-28 04:27:01,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-28 04:27:01,781 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_disconnect [2021-12-28 04:27:01,781 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_disconnect [2021-12-28 04:27:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-28 04:27:01,782 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-28 04:27:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-28 04:27:01,782 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-28 04:27:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-12-28 04:27:01,782 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-12-28 04:27:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure update_basstate [2021-12-28 04:27:01,782 INFO L138 BoogieDeclarations]: Found implementation of procedure update_basstate [2021-12-28 04:27:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-12-28 04:27:01,783 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-12-28 04:27:01,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 04:27:01,783 INFO L130 BoogieDeclarations]: Found specification of procedure atread_submit [2021-12-28 04:27:01,783 INFO L138 BoogieDeclarations]: Found implementation of procedure atread_submit [2021-12-28 04:27:01,783 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_init_bchannel [2021-12-28 04:27:01,783 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_init_bchannel [2021-12-28 04:27:01,783 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-28 04:27:01,783 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-28 04:27:01,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 04:27:01,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 04:27:02,280 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 04:27:02,282 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 04:27:02,473 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 04:27:07,869 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 04:27:07,885 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 04:27:07,885 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 04:27:07,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:27:07 BoogieIcfgContainer [2021-12-28 04:27:07,889 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 04:27:07,890 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 04:27:07,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 04:27:07,893 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 04:27:07,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:26:58" (1/3) ... [2021-12-28 04:27:07,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f0c35c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:27:07, skipping insertion in model container [2021-12-28 04:27:07,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:27:00" (2/3) ... [2021-12-28 04:27:07,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f0c35c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:27:07, skipping insertion in model container [2021-12-28 04:27:07,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:27:07" (3/3) ... [2021-12-28 04:27:07,895 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2021-12-28 04:27:07,899 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 04:27:07,899 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 04:27:07,946 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 04:27:07,952 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 04:27:07,952 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 04:27:08,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 1584 states, 1098 states have (on average 1.3597449908925319) internal successors, (1493), 1142 states have internal predecessors, (1493), 396 states have call successors, (396), 89 states have call predecessors, (396), 88 states have return successors, (387), 368 states have call predecessors, (387), 387 states have call successors, (387) [2021-12-28 04:27:08,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-12-28 04:27:08,018 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:27:08,019 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:08,020 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:27:08,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:27:08,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1429373024, now seen corresponding path program 1 times [2021-12-28 04:27:08,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:27:08,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225986767] [2021-12-28 04:27:08,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:27:08,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:27:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:08,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:27:08,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:08,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:08,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:08,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:08,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:27:08,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:08,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:08,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:08,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:08,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:27:08,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:08,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:08,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:08,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:08,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:27:08,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:08,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:08,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:08,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:08,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:27:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:09,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:09,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:09,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:09,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 04:27:09,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:09,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:09,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 04:27:09,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:09,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:09,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:09,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 04:27:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:09,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:09,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 04:27:09,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:09,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:09,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:27:09,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:09,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:09,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:09,253 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-12-28 04:27:09,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:27:09,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225986767] [2021-12-28 04:27:09,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225986767] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:27:09,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:27:09,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 04:27:09,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143837845] [2021-12-28 04:27:09,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:27:09,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 04:27:09,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:27:09,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 04:27:09,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:27:09,320 INFO L87 Difference]: Start difference. First operand has 1584 states, 1098 states have (on average 1.3597449908925319) internal successors, (1493), 1142 states have internal predecessors, (1493), 396 states have call successors, (396), 89 states have call predecessors, (396), 88 states have return successors, (387), 368 states have call predecessors, (387), 387 states have call successors, (387) Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-28 04:27:13,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:27:13,353 INFO L93 Difference]: Finished difference Result 3312 states and 4895 transitions. [2021-12-28 04:27:13,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 04:27:13,356 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 163 [2021-12-28 04:27:13,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:27:13,385 INFO L225 Difference]: With dead ends: 3312 [2021-12-28 04:27:13,385 INFO L226 Difference]: Without dead ends: 1671 [2021-12-28 04:27:13,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 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 04:27:13,423 INFO L933 BasicCegarLoop]: 2113 mSDtfsCounter, 1011 mSDsluCounter, 1956 mSDsCounter, 0 mSdLazyCounter, 1233 mSolverCounterSat, 1019 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 4069 SdHoareTripleChecker+Invalid, 2252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1019 IncrementalHoareTripleChecker+Valid, 1233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-28 04:27:13,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1019 Valid, 4069 Invalid, 2252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1019 Valid, 1233 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-12-28 04:27:13,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2021-12-28 04:27:13,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1522. [2021-12-28 04:27:13,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1522 states, 1058 states have (on average 1.3534971644612477) internal successors, (1432), 1091 states have internal predecessors, (1432), 377 states have call successors, (377), 87 states have call predecessors, (377), 86 states have return successors, (376), 357 states have call predecessors, (376), 376 states have call successors, (376) [2021-12-28 04:27:13,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1522 states to 1522 states and 2185 transitions. [2021-12-28 04:27:13,602 INFO L78 Accepts]: Start accepts. Automaton has 1522 states and 2185 transitions. Word has length 163 [2021-12-28 04:27:13,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:27:13,603 INFO L470 AbstractCegarLoop]: Abstraction has 1522 states and 2185 transitions. [2021-12-28 04:27:13,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-28 04:27:13,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1522 states and 2185 transitions. [2021-12-28 04:27:13,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-12-28 04:27:13,606 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:27:13,607 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:13,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 04:27:13,607 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:27:13,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:27:13,608 INFO L85 PathProgramCache]: Analyzing trace with hash 184814678, now seen corresponding path program 1 times [2021-12-28 04:27:13,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:27:13,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520144767] [2021-12-28 04:27:13,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:27:13,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:27:13,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:13,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:27:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:13,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:13,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:13,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:13,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:13,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:27:13,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:13,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:13,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:13,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:13,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:27:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:13,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:13,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:27:14,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:14,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:27:14,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:14,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 04:27:14,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 04:27:14,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:14,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 04:27:14,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:14,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 04:27:14,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:14,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:27:14,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:14,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:14,223 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-12-28 04:27:14,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:27:14,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520144767] [2021-12-28 04:27:14,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520144767] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:27:14,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:27:14,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:27:14,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617150484] [2021-12-28 04:27:14,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:27:14,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:27:14,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:27:14,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:27:14,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:27:14,226 INFO L87 Difference]: Start difference. First operand 1522 states and 2185 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2021-12-28 04:27:20,237 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:27:21,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:27:21,552 INFO L93 Difference]: Finished difference Result 4193 states and 6061 transitions. [2021-12-28 04:27:21,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:27:21,557 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 163 [2021-12-28 04:27:21,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:27:21,571 INFO L225 Difference]: With dead ends: 4193 [2021-12-28 04:27:21,572 INFO L226 Difference]: Without dead ends: 2704 [2021-12-28 04:27:21,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:27:21,581 INFO L933 BasicCegarLoop]: 2223 mSDtfsCounter, 2714 mSDsluCounter, 3321 mSDsCounter, 0 mSdLazyCounter, 2412 mSolverCounterSat, 1681 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2866 SdHoareTripleChecker+Valid, 5544 SdHoareTripleChecker+Invalid, 4094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1681 IncrementalHoareTripleChecker+Valid, 2412 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2021-12-28 04:27:21,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2866 Valid, 5544 Invalid, 4094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1681 Valid, 2412 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2021-12-28 04:27:21,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2704 states. [2021-12-28 04:27:21,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2704 to 2463. [2021-12-28 04:27:21,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2463 states, 1720 states have (on average 1.3569767441860465) internal successors, (2334), 1782 states have internal predecessors, (2334), 598 states have call successors, (598), 145 states have call predecessors, (598), 144 states have return successors, (597), 560 states have call predecessors, (597), 597 states have call successors, (597) [2021-12-28 04:27:21,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2463 states to 2463 states and 3529 transitions. [2021-12-28 04:27:21,670 INFO L78 Accepts]: Start accepts. Automaton has 2463 states and 3529 transitions. Word has length 163 [2021-12-28 04:27:21,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:27:21,672 INFO L470 AbstractCegarLoop]: Abstraction has 2463 states and 3529 transitions. [2021-12-28 04:27:21,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2021-12-28 04:27:21,672 INFO L276 IsEmpty]: Start isEmpty. Operand 2463 states and 3529 transitions. [2021-12-28 04:27:21,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-28 04:27:21,677 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:27:21,677 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:21,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 04:27:21,678 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:27:21,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:27:21,678 INFO L85 PathProgramCache]: Analyzing trace with hash 971820423, now seen corresponding path program 1 times [2021-12-28 04:27:21,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:27:21,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411549582] [2021-12-28 04:27:21,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:27:21,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:27:21,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:21,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:27:21,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:21,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:21,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:21,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:21,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:27:21,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:21,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:21,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:21,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:21,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:22,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:27:22,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:22,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:22,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:22,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:22,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:27:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:22,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:22,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:22,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:22,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:22,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:27:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:22,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:22,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:22,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:22,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:22,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 04:27:22,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:22,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:22,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 04:27:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:22,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:22,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:22,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 04:27:22,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:22,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:22,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:22,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 04:27:22,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:22,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:22,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:22,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:27:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:22,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:22,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:22,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-28 04:27:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:22,167 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-12-28 04:27:22,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:27:22,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411549582] [2021-12-28 04:27:22,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411549582] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:27:22,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:27:22,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:27:22,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956262197] [2021-12-28 04:27:22,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:27:22,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:27:22,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:27:22,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:27:22,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:27:22,170 INFO L87 Difference]: Start difference. First operand 2463 states and 3529 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 04:27:27,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:27:27,944 INFO L93 Difference]: Finished difference Result 7010 states and 10136 transitions. [2021-12-28 04:27:27,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:27:27,945 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 167 [2021-12-28 04:27:27,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:27:27,968 INFO L225 Difference]: With dead ends: 7010 [2021-12-28 04:27:27,969 INFO L226 Difference]: Without dead ends: 4584 [2021-12-28 04:27:27,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:27:27,980 INFO L933 BasicCegarLoop]: 2362 mSDtfsCounter, 3217 mSDsluCounter, 3423 mSDsCounter, 0 mSdLazyCounter, 2501 mSolverCounterSat, 1882 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3382 SdHoareTripleChecker+Valid, 5785 SdHoareTripleChecker+Invalid, 4383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1882 IncrementalHoareTripleChecker+Valid, 2501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-12-28 04:27:27,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3382 Valid, 5785 Invalid, 4383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1882 Valid, 2501 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2021-12-28 04:27:27,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4584 states. [2021-12-28 04:27:28,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4584 to 4154. [2021-12-28 04:27:28,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4154 states, 2913 states have (on average 1.3724682457947133) internal successors, (3998), 3037 states have internal predecessors, (3998), 988 states have call successors, (988), 253 states have call predecessors, (988), 252 states have return successors, (987), 913 states have call predecessors, (987), 987 states have call successors, (987) [2021-12-28 04:27:28,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4154 states to 4154 states and 5973 transitions. [2021-12-28 04:27:28,098 INFO L78 Accepts]: Start accepts. Automaton has 4154 states and 5973 transitions. Word has length 167 [2021-12-28 04:27:28,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:27:28,098 INFO L470 AbstractCegarLoop]: Abstraction has 4154 states and 5973 transitions. [2021-12-28 04:27:28,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 04:27:28,099 INFO L276 IsEmpty]: Start isEmpty. Operand 4154 states and 5973 transitions. [2021-12-28 04:27:28,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-28 04:27:28,100 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:27:28,101 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:28,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 04:27:28,101 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:27:28,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:27:28,101 INFO L85 PathProgramCache]: Analyzing trace with hash -999731685, now seen corresponding path program 1 times [2021-12-28 04:27:28,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:27:28,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986700820] [2021-12-28 04:27:28,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:27:28,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:27:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:28,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:27:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:28,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:28,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:28,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:28,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:28,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:27:28,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:28,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:28,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:28,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:28,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:28,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:27:28,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:28,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:28,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:28,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:28,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:28,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:27:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:28,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:28,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:28,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:28,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:27:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:28,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:28,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:28,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:28,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:28,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 04:27:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:28,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:28,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 04:27:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:28,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:28,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 04:27:28,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:28,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:28,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:28,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 04:27:28,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:28,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:28,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:28,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:27:28,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:28,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:28,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:28,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-28 04:27:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:28,678 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-12-28 04:27:28,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:27:28,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986700820] [2021-12-28 04:27:28,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986700820] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:27:28,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:27:28,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:27:28,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665599612] [2021-12-28 04:27:28,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:27:28,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:27:28,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:27:28,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:27:28,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:27:28,681 INFO L87 Difference]: Start difference. First operand 4154 states and 5973 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 04:27:32,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:27:32,018 INFO L93 Difference]: Finished difference Result 5086 states and 7324 transitions. [2021-12-28 04:27:32,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:27:32,018 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 167 [2021-12-28 04:27:32,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:27:32,046 INFO L225 Difference]: With dead ends: 5086 [2021-12-28 04:27:32,046 INFO L226 Difference]: Without dead ends: 5083 [2021-12-28 04:27:32,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:27:32,052 INFO L933 BasicCegarLoop]: 2126 mSDtfsCounter, 3218 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 1061 mSolverCounterSat, 1740 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3389 SdHoareTripleChecker+Valid, 3374 SdHoareTripleChecker+Invalid, 2801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1740 IncrementalHoareTripleChecker+Valid, 1061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-12-28 04:27:32,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3389 Valid, 3374 Invalid, 2801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1740 Valid, 1061 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-12-28 04:27:32,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5083 states. [2021-12-28 04:27:32,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5083 to 4610. [2021-12-28 04:27:32,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4610 states, 3261 states have (on average 1.380558111008893) internal successors, (4502), 3391 states have internal predecessors, (4502), 1038 states have call successors, (1038), 319 states have call predecessors, (1038), 310 states have return successors, (1039), 953 states have call predecessors, (1039), 1037 states have call successors, (1039) [2021-12-28 04:27:32,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4610 states to 4610 states and 6579 transitions. [2021-12-28 04:27:32,194 INFO L78 Accepts]: Start accepts. Automaton has 4610 states and 6579 transitions. Word has length 167 [2021-12-28 04:27:32,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:27:32,196 INFO L470 AbstractCegarLoop]: Abstraction has 4610 states and 6579 transitions. [2021-12-28 04:27:32,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 04:27:32,196 INFO L276 IsEmpty]: Start isEmpty. Operand 4610 states and 6579 transitions. [2021-12-28 04:27:32,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-12-28 04:27:32,200 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:27:32,201 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:27:32,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 04:27:32,201 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:27:32,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:27:32,201 INFO L85 PathProgramCache]: Analyzing trace with hash 524624507, now seen corresponding path program 1 times [2021-12-28 04:27:32,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:27:32,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826966980] [2021-12-28 04:27:32,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:27:32,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:27:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:27:32,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:32,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:32,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:27:32,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:32,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:32,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:27:32,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:32,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:27:32,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:32,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:27:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:32,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 04:27:32,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:32,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 04:27:32,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:32,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 04:27:32,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:32,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 04:27:32,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:27:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-28 04:27:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-28 04:27:32,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-28 04:27:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-28 04:27:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-28 04:27:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-28 04:27:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:32,912 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2021-12-28 04:27:32,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:27:32,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826966980] [2021-12-28 04:27:32,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826966980] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:27:32,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:27:32,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-28 04:27:32,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570321633] [2021-12-28 04:27:32,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:27:32,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-28 04:27:32,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:27:32,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-28 04:27:32,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-12-28 04:27:32,914 INFO L87 Difference]: Start difference. First operand 4610 states and 6579 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-28 04:27:37,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:27:37,843 INFO L93 Difference]: Finished difference Result 10110 states and 14595 transitions. [2021-12-28 04:27:37,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-28 04:27:37,843 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 213 [2021-12-28 04:27:37,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:27:37,873 INFO L225 Difference]: With dead ends: 10110 [2021-12-28 04:27:37,873 INFO L226 Difference]: Without dead ends: 5547 [2021-12-28 04:27:37,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2021-12-28 04:27:37,890 INFO L933 BasicCegarLoop]: 1897 mSDtfsCounter, 4322 mSDsluCounter, 2322 mSDsCounter, 0 mSdLazyCounter, 2118 mSolverCounterSat, 3043 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4540 SdHoareTripleChecker+Valid, 4219 SdHoareTripleChecker+Invalid, 5161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3043 IncrementalHoareTripleChecker+Valid, 2118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-12-28 04:27:37,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4540 Valid, 4219 Invalid, 5161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3043 Valid, 2118 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-12-28 04:27:37,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5547 states. [2021-12-28 04:27:38,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5547 to 4614. [2021-12-28 04:27:38,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4614 states, 3266 states have (on average 1.3775260257195345) internal successors, (4499), 3394 states have internal predecessors, (4499), 1034 states have call successors, (1034), 320 states have call predecessors, (1034), 313 states have return successors, (1037), 953 states have call predecessors, (1037), 1033 states have call successors, (1037) [2021-12-28 04:27:38,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4614 states to 4614 states and 6570 transitions. [2021-12-28 04:27:38,177 INFO L78 Accepts]: Start accepts. Automaton has 4614 states and 6570 transitions. Word has length 213 [2021-12-28 04:27:38,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:27:38,178 INFO L470 AbstractCegarLoop]: Abstraction has 4614 states and 6570 transitions. [2021-12-28 04:27:38,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-28 04:27:38,179 INFO L276 IsEmpty]: Start isEmpty. Operand 4614 states and 6570 transitions. [2021-12-28 04:27:38,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-12-28 04:27:38,185 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:27:38,186 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:27:38,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 04:27:38,186 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:27:38,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:27:38,188 INFO L85 PathProgramCache]: Analyzing trace with hash 673112347, now seen corresponding path program 1 times [2021-12-28 04:27:38,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:27:38,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820029031] [2021-12-28 04:27:38,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:27:38,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:27:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:27:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:27:38,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:38,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:27:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:38,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:27:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:38,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:27:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:38,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:38,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 04:27:38,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:38,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 04:27:38,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:38,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 04:27:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:38,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 04:27:38,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:27:38,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:38,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-28 04:27:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-28 04:27:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:38,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:38,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-28 04:27:38,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-28 04:27:38,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-28 04:27:38,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-28 04:27:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:38,672 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2021-12-28 04:27:38,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:27:38,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820029031] [2021-12-28 04:27:38,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820029031] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:27:38,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:27:38,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-28 04:27:38,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467146764] [2021-12-28 04:27:38,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:27:38,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-28 04:27:38,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:27:38,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-28 04:27:38,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-12-28 04:27:38,676 INFO L87 Difference]: Start difference. First operand 4614 states and 6570 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-28 04:27:45,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:27:45,027 INFO L93 Difference]: Finished difference Result 10106 states and 14559 transitions. [2021-12-28 04:27:45,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-28 04:27:45,028 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 212 [2021-12-28 04:27:45,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:27:45,104 INFO L225 Difference]: With dead ends: 10106 [2021-12-28 04:27:45,105 INFO L226 Difference]: Without dead ends: 5543 [2021-12-28 04:27:45,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2021-12-28 04:27:45,134 INFO L933 BasicCegarLoop]: 1893 mSDtfsCounter, 4206 mSDsluCounter, 3230 mSDsCounter, 0 mSdLazyCounter, 3202 mSolverCounterSat, 2993 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4423 SdHoareTripleChecker+Valid, 5123 SdHoareTripleChecker+Invalid, 6195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2993 IncrementalHoareTripleChecker+Valid, 3202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2021-12-28 04:27:45,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4423 Valid, 5123 Invalid, 6195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2993 Valid, 3202 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2021-12-28 04:27:45,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5543 states. [2021-12-28 04:27:45,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5543 to 4610. [2021-12-28 04:27:45,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4610 states, 3266 states have (on average 1.3763012859767298) internal successors, (4495), 3390 states have internal predecessors, (4495), 1030 states have call successors, (1030), 320 states have call predecessors, (1030), 313 states have return successors, (1033), 953 states have call predecessors, (1033), 1029 states have call successors, (1033) [2021-12-28 04:27:45,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4610 states to 4610 states and 6558 transitions. [2021-12-28 04:27:45,357 INFO L78 Accepts]: Start accepts. Automaton has 4610 states and 6558 transitions. Word has length 212 [2021-12-28 04:27:45,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:27:45,358 INFO L470 AbstractCegarLoop]: Abstraction has 4610 states and 6558 transitions. [2021-12-28 04:27:45,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-28 04:27:45,358 INFO L276 IsEmpty]: Start isEmpty. Operand 4610 states and 6558 transitions. [2021-12-28 04:27:45,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-12-28 04:27:45,363 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:27:45,364 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:27:45,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 04:27:45,364 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:27:45,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:27:45,365 INFO L85 PathProgramCache]: Analyzing trace with hash 194956422, now seen corresponding path program 1 times [2021-12-28 04:27:45,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:27:45,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528183175] [2021-12-28 04:27:45,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:27:45,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:27:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:27:45,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:27:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:45,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:45,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:27:45,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:45,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:27:45,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:45,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:27:45,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:45,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:45,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 04:27:45,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:45,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 04:27:45,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:45,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 04:27:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:45,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 04:27:45,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:45,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 04:27:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:45,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-28 04:27:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:45,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:45,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-28 04:27:45,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-28 04:27:45,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-28 04:27:45,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-28 04:27:45,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-28 04:27:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:45,802 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2021-12-28 04:27:45,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:27:45,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528183175] [2021-12-28 04:27:45,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528183175] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:27:45,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:27:45,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-28 04:27:45,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476277127] [2021-12-28 04:27:45,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:27:45,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-28 04:27:45,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:27:45,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-28 04:27:45,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-12-28 04:27:45,805 INFO L87 Difference]: Start difference. First operand 4610 states and 6558 transitions. Second operand has 10 states, 10 states have (on average 7.6) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (26), 7 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21)