./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--scsi--initio.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--initio.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 bca836bbe3a531e36018faf0b4374aec0682953aa5034dcc910310719152fdea --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 15:16:24,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 15:16:24,728 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 15:16:24,772 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 15:16:24,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 15:16:24,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 15:16:24,777 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 15:16:24,780 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 15:16:24,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 15:16:24,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 15:16:24,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 15:16:24,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 15:16:24,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 15:16:24,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 15:16:24,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 15:16:24,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 15:16:24,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 15:16:24,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 15:16:24,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 15:16:24,804 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 15:16:24,805 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 15:16:24,806 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 15:16:24,807 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 15:16:24,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 15:16:24,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 15:16:24,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 15:16:24,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 15:16:24,816 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 15:16:24,816 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 15:16:24,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 15:16:24,817 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 15:16:24,818 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 15:16:24,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 15:16:24,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 15:16:24,821 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 15:16:24,821 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 15:16:24,822 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 15:16:24,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 15:16:24,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 15:16:24,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 15:16:24,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 15:16:24,825 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 15:16:24,855 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 15:16:24,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 15:16:24,856 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 15:16:24,856 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 15:16:24,856 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 15:16:24,857 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 15:16:24,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 15:16:24,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 15:16:24,857 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 15:16:24,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 15:16:24,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 15:16:24,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 15:16:24,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 15:16:24,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 15:16:24,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 15:16:24,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 15:16:24,858 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 15:16:24,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 15:16:24,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 15:16:24,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 15:16:24,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 15:16:24,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:16:24,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 15:16:24,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 15:16:24,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 15:16:24,859 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 15:16:24,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 15:16:24,860 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 15:16:24,860 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 15:16:24,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 15:16:24,861 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 15:16:24,861 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bca836bbe3a531e36018faf0b4374aec0682953aa5034dcc910310719152fdea [2021-12-22 15:16:25,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 15:16:25,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 15:16:25,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 15:16:25,120 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 15:16:25,121 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 15:16:25,123 INFO L432 ainManager$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--scsi--initio.ko-entry_point.cil.out.i [2021-12-22 15:16:25,204 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fbb4c97c/6821c2d11e3e42a593cae5007660768e/FLAGb758b891c [2021-12-22 15:16:25,879 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 15:16:25,880 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--scsi--initio.ko-entry_point.cil.out.i [2021-12-22 15:16:25,925 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fbb4c97c/6821c2d11e3e42a593cae5007660768e/FLAGb758b891c [2021-12-22 15:16:26,219 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fbb4c97c/6821c2d11e3e42a593cae5007660768e [2021-12-22 15:16:26,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 15:16:26,223 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 15:16:26,226 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 15:16:26,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 15:16:26,229 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 15:16:26,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:16:26" (1/1) ... [2021-12-22 15:16:26,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@638b1139 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:16:26, skipping insertion in model container [2021-12-22 15:16:26,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:16:26" (1/1) ... [2021-12-22 15:16:26,239 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 15:16:26,359 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 15:16:27,981 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--scsi--initio.ko-entry_point.cil.out.i[238430,238443] [2021-12-22 15:16:28,041 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:16:28,076 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 15:16:28,487 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--scsi--initio.ko-entry_point.cil.out.i[238430,238443] [2021-12-22 15:16:28,494 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:16:28,561 INFO L208 MainTranslator]: Completed translation [2021-12-22 15:16:28,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:16:28 WrapperNode [2021-12-22 15:16:28,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 15:16:28,565 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 15:16:28,565 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 15:16:28,566 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 15:16:28,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:16:28" (1/1) ... [2021-12-22 15:16:28,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:16:28" (1/1) ... [2021-12-22 15:16:28,844 INFO L137 Inliner]: procedures = 213, calls = 1959, calls flagged for inlining = 114, calls inlined = 111, statements flattened = 4536 [2021-12-22 15:16:28,844 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 15:16:28,845 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 15:16:28,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 15:16:28,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 15:16:28,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:16:28" (1/1) ... [2021-12-22 15:16:28,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:16:28" (1/1) ... [2021-12-22 15:16:28,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:16:28" (1/1) ... [2021-12-22 15:16:28,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:16:28" (1/1) ... [2021-12-22 15:16:29,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:16:28" (1/1) ... [2021-12-22 15:16:29,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:16:28" (1/1) ... [2021-12-22 15:16:29,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:16:28" (1/1) ... [2021-12-22 15:16:29,136 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 15:16:29,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 15:16:29,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 15:16:29,138 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 15:16:29,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:16:28" (1/1) ... [2021-12-22 15:16:29,150 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:16:29,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:16:29,177 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 15:16:29,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 15:16:29,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 15:16:29,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 15:16:29,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 15:16:29,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 15:16:29,230 INFO L130 BoogieDeclarations]: Found specification of procedure initio_status_msg [2021-12-22 15:16:29,230 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_status_msg [2021-12-22 15:16:29,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 15:16:29,231 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 15:16:29,231 INFO L130 BoogieDeclarations]: Found specification of procedure initio_select_atn_stop [2021-12-22 15:16:29,231 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_select_atn_stop [2021-12-22 15:16:29,231 INFO L130 BoogieDeclarations]: Found specification of procedure initio_msgin_accept [2021-12-22 15:16:29,231 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_msgin_accept [2021-12-22 15:16:29,232 INFO L130 BoogieDeclarations]: Found specification of procedure initio_remove_one [2021-12-22 15:16:29,232 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_remove_one [2021-12-22 15:16:29,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-22 15:16:29,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-22 15:16:29,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 15:16:29,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 15:16:29,233 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bufflen [2021-12-22 15:16:29,233 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bufflen [2021-12-22 15:16:29,233 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-22 15:16:29,233 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-22 15:16:29,233 INFO L130 BoogieDeclarations]: Found specification of procedure int_initio_scsi_rst [2021-12-22 15:16:29,233 INFO L138 BoogieDeclarations]: Found implementation of procedure int_initio_scsi_rst [2021-12-22 15:16:29,233 INFO L130 BoogieDeclarations]: Found specification of procedure initio_abort_srb [2021-12-22 15:16:29,234 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_abort_srb [2021-12-22 15:16:29,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 15:16:29,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 15:16:29,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_3 [2021-12-22 15:16:29,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_3 [2021-12-22 15:16:29,234 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-22 15:16:29,235 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-22 15:16:29,235 INFO L130 BoogieDeclarations]: Found specification of procedure initio_next_state [2021-12-22 15:16:29,235 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_next_state [2021-12-22 15:16:29,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 15:16:29,235 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 15:16:29,235 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 15:16:29,236 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 15:16:29,236 INFO L130 BoogieDeclarations]: Found specification of procedure initio_unlink_pend_scb [2021-12-22 15:16:29,236 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_unlink_pend_scb [2021-12-22 15:16:29,236 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 15:16:29,237 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 15:16:29,237 INFO L130 BoogieDeclarations]: Found specification of procedure initio_append_busy_scb [2021-12-22 15:16:29,237 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_append_busy_scb [2021-12-22 15:16:29,237 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-22 15:16:29,238 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-22 15:16:29,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 15:16:29,238 INFO L130 BoogieDeclarations]: Found specification of procedure initio_msgout_reject [2021-12-22 15:16:29,238 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_msgout_reject [2021-12-22 15:16:29,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 15:16:29,238 INFO L130 BoogieDeclarations]: Found specification of procedure initio_se2_rd_all [2021-12-22 15:16:29,239 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_se2_rd_all [2021-12-22 15:16:29,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-22 15:16:29,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-22 15:16:29,239 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 15:16:29,240 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 15:16:29,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 15:16:29,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 15:16:29,241 INFO L130 BoogieDeclarations]: Found specification of procedure initio_release_scb [2021-12-22 15:16:29,242 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_release_scb [2021-12-22 15:16:29,242 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_scsi [2021-12-22 15:16:29,242 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_scsi [2021-12-22 15:16:29,242 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-22 15:16:29,242 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-22 15:16:29,243 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-12-22 15:16:29,243 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-12-22 15:16:29,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 15:16:29,243 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-22 15:16:29,243 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-22 15:16:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure initio_msgout_abort_targ [2021-12-22 15:16:29,244 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_msgout_abort_targ [2021-12-22 15:16:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-22 15:16:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-22 15:16:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 15:16:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure initio_se2_instr [2021-12-22 15:16:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_se2_instr [2021-12-22 15:16:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 15:16:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure initio_find_first_pend_scb [2021-12-22 15:16:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_find_first_pend_scb [2021-12-22 15:16:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-22 15:16:29,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-22 15:16:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure initio_unlink_busy_scb [2021-12-22 15:16:29,246 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_unlink_busy_scb [2021-12-22 15:16:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure initio_wait_done_disc [2021-12-22 15:16:29,246 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_wait_done_disc [2021-12-22 15:16:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-22 15:16:29,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-22 15:16:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 15:16:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-22 15:16:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-22 15:16:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure initio_stop_bm [2021-12-22 15:16:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_stop_bm [2021-12-22 15:16:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-12-22 15:16:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-12-22 15:16:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure wait_tulip [2021-12-22 15:16:29,249 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_tulip [2021-12-22 15:16:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 15:16:29,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 15:16:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure initio_pop_busy_scb [2021-12-22 15:16:29,250 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_pop_busy_scb [2021-12-22 15:16:29,250 INFO L130 BoogieDeclarations]: Found specification of procedure initio_bad_seq [2021-12-22 15:16:29,250 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_bad_seq [2021-12-22 15:16:29,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-22 15:16:29,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-22 15:16:29,251 INFO L130 BoogieDeclarations]: Found specification of procedure int_initio_resel [2021-12-22 15:16:29,251 INFO L138 BoogieDeclarations]: Found implementation of procedure int_initio_resel [2021-12-22 15:16:29,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 15:16:29,251 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-22 15:16:29,252 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-22 15:16:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 15:16:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure initio_msgout_abort_tag [2021-12-22 15:16:29,252 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_msgout_abort_tag [2021-12-22 15:16:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-22 15:16:29,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-22 15:16:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 15:16:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-22 15:16:29,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-22 15:16:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2021-12-22 15:16:29,254 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2021-12-22 15:16:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure initio_reset_scsi [2021-12-22 15:16:29,256 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_reset_scsi [2021-12-22 15:16:29,257 INFO L130 BoogieDeclarations]: Found specification of procedure initio_append_done_scb [2021-12-22 15:16:29,257 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_append_done_scb [2021-12-22 15:16:29,258 INFO L130 BoogieDeclarations]: Found specification of procedure initio_append_pend_scb [2021-12-22 15:16:29,259 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_append_pend_scb [2021-12-22 15:16:29,259 INFO L130 BoogieDeclarations]: Found specification of procedure initio_msgin [2021-12-22 15:16:29,259 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_msgin [2021-12-22 15:16:29,259 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-22 15:16:29,264 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-22 15:16:29,265 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_main [2021-12-22 15:16:29,265 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_main [2021-12-22 15:16:29,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 15:16:29,265 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-22 15:16:29,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-22 15:16:29,265 INFO L130 BoogieDeclarations]: Found specification of procedure int_initio_busfree [2021-12-22 15:16:29,265 INFO L138 BoogieDeclarations]: Found implementation of procedure int_initio_busfree [2021-12-22 15:16:29,266 INFO L130 BoogieDeclarations]: Found specification of procedure initio_sync_done [2021-12-22 15:16:29,266 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_sync_done [2021-12-22 15:16:29,266 INFO L130 BoogieDeclarations]: Found specification of procedure initio_wait_disc [2021-12-22 15:16:29,266 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_wait_disc [2021-12-22 15:16:29,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 15:16:29,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 15:16:29,266 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2021-12-22 15:16:29,267 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2021-12-22 15:16:29,991 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 15:16:29,994 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 15:16:30,272 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 15:16:38,325 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 15:16:38,341 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 15:16:38,341 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 15:16:38,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:16:38 BoogieIcfgContainer [2021-12-22 15:16:38,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 15:16:38,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 15:16:38,347 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 15:16:38,353 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 15:16:38,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:16:26" (1/3) ... [2021-12-22 15:16:38,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc9adeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:16:38, skipping insertion in model container [2021-12-22 15:16:38,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:16:28" (2/3) ... [2021-12-22 15:16:38,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc9adeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:16:38, skipping insertion in model container [2021-12-22 15:16:38,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:16:38" (3/3) ... [2021-12-22 15:16:38,380 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--initio.ko-entry_point.cil.out.i [2021-12-22 15:16:38,385 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 15:16:38,385 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 15:16:38,442 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 15:16:38,446 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 15:16:38,446 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 15:16:38,498 INFO L276 IsEmpty]: Start isEmpty. Operand has 1793 states, 1215 states have (on average 1.3333333333333333) internal successors, (1620), 1250 states have internal predecessors, (1620), 513 states have call successors, (513), 64 states have call predecessors, (513), 63 states have return successors, (507), 501 states have call predecessors, (507), 507 states have call successors, (507) [2021-12-22 15:16:38,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-22 15:16:38,515 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:16:38,516 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2021-12-22 15:16:38,517 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:16:38,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:16:38,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1560347786, now seen corresponding path program 1 times [2021-12-22 15:16:38,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:16:38,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337206858] [2021-12-22 15:16:38,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:16:38,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:16:38,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:39,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:16:39,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:39,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:16:39,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:39,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:16:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:39,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:16:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:39,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:16:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:39,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:16:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:39,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:16:39,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:39,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:16:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:39,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:16:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:39,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:16:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:39,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 15:16:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:39,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:16:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:39,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:16:39,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:39,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 15:16:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:39,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-22 15:16:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:39,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-22 15:16:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:39,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 15:16:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:39,284 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-22 15:16:39,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:16:39,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337206858] [2021-12-22 15:16:39,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337206858] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:16:39,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:16:39,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:16:39,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12445930] [2021-12-22 15:16:39,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:16:39,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:16:39,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:16:39,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:16:39,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:16:39,331 INFO L87 Difference]: Start difference. First operand has 1793 states, 1215 states have (on average 1.3333333333333333) internal successors, (1620), 1250 states have internal predecessors, (1620), 513 states have call successors, (513), 64 states have call predecessors, (513), 63 states have return successors, (507), 501 states have call predecessors, (507), 507 states have call successors, (507) Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 15:16:42,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:16:44,820 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:16:52,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:16:52,959 INFO L93 Difference]: Finished difference Result 3882 states and 5785 transitions. [2021-12-22 15:16:52,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:16:52,961 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 128 [2021-12-22 15:16:52,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:16:52,998 INFO L225 Difference]: With dead ends: 3882 [2021-12-22 15:16:52,999 INFO L226 Difference]: Without dead ends: 2074 [2021-12-22 15:16:53,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-22 15:16:53,031 INFO L933 BasicCegarLoop]: 2036 mSDtfsCounter, 1990 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 5496 mSolverCounterSat, 1567 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2351 SdHoareTripleChecker+Valid, 3157 SdHoareTripleChecker+Invalid, 7065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1567 IncrementalHoareTripleChecker+Valid, 5496 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2021-12-22 15:16:53,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2351 Valid, 3157 Invalid, 7065 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1567 Valid, 5496 Invalid, 2 Unknown, 0 Unchecked, 13.1s Time] [2021-12-22 15:16:53,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2074 states. [2021-12-22 15:16:53,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2074 to 1773. [2021-12-22 15:16:53,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1773 states, 1203 states have (on average 1.3258520365752287) internal successors, (1595), 1230 states have internal predecessors, (1595), 507 states have call successors, (507), 63 states have call predecessors, (507), 62 states have return successors, (506), 500 states have call predecessors, (506), 506 states have call successors, (506) [2021-12-22 15:16:53,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1773 states to 1773 states and 2608 transitions. [2021-12-22 15:16:53,348 INFO L78 Accepts]: Start accepts. Automaton has 1773 states and 2608 transitions. Word has length 128 [2021-12-22 15:16:53,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:16:53,349 INFO L470 AbstractCegarLoop]: Abstraction has 1773 states and 2608 transitions. [2021-12-22 15:16:53,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 15:16:53,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1773 states and 2608 transitions. [2021-12-22 15:16:53,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-22 15:16:53,356 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:16:53,357 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2021-12-22 15:16:53,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 15:16:53,357 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:16:53,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:16:53,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1164560638, now seen corresponding path program 1 times [2021-12-22 15:16:53,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:16:53,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252124839] [2021-12-22 15:16:53,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:16:53,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:16:53,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:53,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:16:53,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:53,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:16:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:53,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:16:53,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:53,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:16:53,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:53,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:16:53,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:53,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:16:53,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:53,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:16:53,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:53,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:16:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:53,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:16:53,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:53,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:16:53,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:53,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 15:16:53,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:53,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:16:53,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:53,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:16:53,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:53,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 15:16:53,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:53,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-22 15:16:53,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:53,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-22 15:16:53,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:53,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 15:16:53,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:16:53,725 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-22 15:16:53,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:16:53,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252124839] [2021-12-22 15:16:53,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252124839] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:16:53,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:16:53,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 15:16:53,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630111501] [2021-12-22 15:16:53,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:16:53,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 15:16:53,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:16:53,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 15:16:53,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-22 15:16:53,729 INFO L87 Difference]: Start difference. First operand 1773 states and 2608 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 15:16:58,158 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:17:00,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:17:02,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:17:11,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:17:13,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:17:13,555 INFO L93 Difference]: Finished difference Result 5609 states and 8344 transitions. [2021-12-22 15:17:13,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 15:17:13,563 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 128 [2021-12-22 15:17:13,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:17:13,593 INFO L225 Difference]: With dead ends: 5609 [2021-12-22 15:17:13,594 INFO L226 Difference]: Without dead ends: 3852 [2021-12-22 15:17:13,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-22 15:17:13,607 INFO L933 BasicCegarLoop]: 2462 mSDtfsCounter, 5098 mSDsluCounter, 1715 mSDsCounter, 0 mSdLazyCounter, 7630 mSolverCounterSat, 4007 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5494 SdHoareTripleChecker+Valid, 4177 SdHoareTripleChecker+Invalid, 11640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4007 IncrementalHoareTripleChecker+Valid, 7630 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2021-12-22 15:17:13,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5494 Valid, 4177 Invalid, 11640 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4007 Valid, 7630 Invalid, 3 Unknown, 0 Unchecked, 19.2s Time] [2021-12-22 15:17:13,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3852 states. [2021-12-22 15:17:13,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3852 to 3274. [2021-12-22 15:17:13,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3274 states, 2229 states have (on average 1.3283983849259757) internal successors, (2961), 2278 states have internal predecessors, (2961), 926 states have call successors, (926), 119 states have call predecessors, (926), 118 states have return successors, (925), 914 states have call predecessors, (925), 925 states have call successors, (925) [2021-12-22 15:17:13,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3274 states to 3274 states and 4812 transitions. [2021-12-22 15:17:13,858 INFO L78 Accepts]: Start accepts. Automaton has 3274 states and 4812 transitions. Word has length 128 [2021-12-22 15:17:13,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:17:13,860 INFO L470 AbstractCegarLoop]: Abstraction has 3274 states and 4812 transitions. [2021-12-22 15:17:13,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 15:17:13,861 INFO L276 IsEmpty]: Start isEmpty. Operand 3274 states and 4812 transitions. [2021-12-22 15:17:13,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-22 15:17:13,873 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:17:13,873 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:17:13,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 15:17:13,876 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:17:13,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:17:13,877 INFO L85 PathProgramCache]: Analyzing trace with hash 2047937129, now seen corresponding path program 1 times [2021-12-22 15:17:13,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:17:13,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520671458] [2021-12-22 15:17:13,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:17:13,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:17:13,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:17:14,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:17:14,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:17:14,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:17:14,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:17:14,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:17:14,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:17:14,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:17:14,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:17:14,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:17:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:17:14,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:17:14,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:17:14,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:17:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:17:14,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:17:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:17:14,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:17:14,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:17:14,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:17:14,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:17:14,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 15:17:14,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:17:14,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:17:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:17:14,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:17:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:17:14,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 15:17:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:17:14,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-22 15:17:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:17:14,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:17:14,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:17:14,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:17:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:17:14,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-22 15:17:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:17:14,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-22 15:17:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:17:14,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-22 15:17:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:17:14,318 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-12-22 15:17:14,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:17:14,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520671458] [2021-12-22 15:17:14,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520671458] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:17:14,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:17:14,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 15:17:14,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713977754] [2021-12-22 15:17:14,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:17:14,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 15:17:14,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:17:14,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 15:17:14,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-22 15:17:14,322 INFO L87 Difference]: Start difference. First operand 3274 states and 4812 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-22 15:17:17,493 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 [] [2021-12-22 15:17:19,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:17:21,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:17:23,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []