./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.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 1dadd209c6e3ebdaafa15f295f1ec8ec38d24c8a1f9b514f05808fa8c7c3e21c --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 17:40:45,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 17:40:45,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 17:40:45,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 17:40:45,064 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 17:40:45,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 17:40:45,068 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 17:40:45,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 17:40:45,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 17:40:45,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 17:40:45,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 17:40:45,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 17:40:45,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 17:40:45,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 17:40:45,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 17:40:45,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 17:40:45,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 17:40:45,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 17:40:45,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 17:40:45,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 17:40:45,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 17:40:45,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 17:40:45,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 17:40:45,083 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 17:40:45,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 17:40:45,085 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 17:40:45,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 17:40:45,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 17:40:45,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 17:40:45,087 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 17:40:45,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 17:40:45,088 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 17:40:45,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 17:40:45,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 17:40:45,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 17:40:45,090 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 17:40:45,091 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 17:40:45,091 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 17:40:45,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 17:40:45,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 17:40:45,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 17:40:45,093 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 17:40:45,108 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 17:40:45,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 17:40:45,109 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 17:40:45,109 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 17:40:45,110 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 17:40:45,110 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 17:40:45,111 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 17:40:45,111 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 17:40:45,111 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 17:40:45,111 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 17:40:45,112 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 17:40:45,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 17:40:45,112 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 17:40:45,112 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 17:40:45,112 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 17:40:45,113 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 17:40:45,113 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 17:40:45,113 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 17:40:45,113 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 17:40:45,113 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 17:40:45,113 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 17:40:45,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:40:45,114 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 17:40:45,114 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 17:40:45,114 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 17:40:45,114 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 17:40:45,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 17:40:45,115 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 17:40:45,115 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 17:40:45,115 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 17:40:45,115 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 17:40:45,115 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1dadd209c6e3ebdaafa15f295f1ec8ec38d24c8a1f9b514f05808fa8c7c3e21c [2021-12-14 17:40:45,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 17:40:45,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 17:40:45,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 17:40:45,295 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 17:40:45,295 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 17:40:45,296 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2021-12-14 17:40:45,365 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adc89f131/f0db15876a60468fa8cf1f1289fa588b/FLAGc9dac077a [2021-12-14 17:40:45,889 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 17:40:45,891 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2021-12-14 17:40:45,921 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adc89f131/f0db15876a60468fa8cf1f1289fa588b/FLAGc9dac077a [2021-12-14 17:40:46,115 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adc89f131/f0db15876a60468fa8cf1f1289fa588b [2021-12-14 17:40:46,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 17:40:46,118 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 17:40:46,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 17:40:46,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 17:40:46,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 17:40:46,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:40:46" (1/1) ... [2021-12-14 17:40:46,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44ffea85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:40:46, skipping insertion in model container [2021-12-14 17:40:46,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:40:46" (1/1) ... [2021-12-14 17:40:46,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 17:40:46,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 17:40:46,845 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i[117505,117518] [2021-12-14 17:40:47,267 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:40:47,306 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 17:40:47,418 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i[117505,117518] [2021-12-14 17:40:47,590 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:40:47,651 INFO L208 MainTranslator]: Completed translation [2021-12-14 17:40:47,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:40:47 WrapperNode [2021-12-14 17:40:47,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 17:40:47,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 17:40:47,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 17:40:47,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 17:40:47,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:40:47" (1/1) ... [2021-12-14 17:40:47,728 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:40:47" (1/1) ... [2021-12-14 17:40:47,846 INFO L137 Inliner]: procedures = 229, calls = 2526, calls flagged for inlining = 102, calls inlined = 99, statements flattened = 4859 [2021-12-14 17:40:47,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 17:40:47,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 17:40:47,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 17:40:47,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 17:40:47,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:40:47" (1/1) ... [2021-12-14 17:40:47,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:40:47" (1/1) ... [2021-12-14 17:40:47,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:40:47" (1/1) ... [2021-12-14 17:40:47,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:40:47" (1/1) ... [2021-12-14 17:40:48,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:40:47" (1/1) ... [2021-12-14 17:40:48,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:40:47" (1/1) ... [2021-12-14 17:40:48,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:40:47" (1/1) ... [2021-12-14 17:40:48,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 17:40:48,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 17:40:48,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 17:40:48,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 17:40:48,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:40:47" (1/1) ... [2021-12-14 17:40:48,101 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:40:48,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:40:48,119 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) [2021-12-14 17:40:48,138 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 [2021-12-14 17:40:48,149 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-14 17:40:48,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-14 17:40:48,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-12-14 17:40:48,149 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-12-14 17:40:48,150 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-14 17:40:48,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 17:40:48,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 17:40:48,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 17:40:48,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 17:40:48,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-12-14 17:40:48,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-12-14 17:40:48,150 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_rel [2021-12-14 17:40:48,151 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_rel [2021-12-14 17:40:48,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_26 [2021-12-14 17:40:48,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_26 [2021-12-14 17:40:48,151 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-14 17:40:48,151 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-14 17:40:48,151 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2021-12-14 17:40:48,151 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2021-12-14 17:40:48,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 17:40:48,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 17:40:48,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2021-12-14 17:40:48,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2021-12-14 17:40:48,152 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2021-12-14 17:40:48,152 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2021-12-14 17:40:48,152 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2021-12-14 17:40:48,152 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2021-12-14 17:40:48,152 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 17:40:48,152 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 17:40:48,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 17:40:48,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 17:40:48,153 INFO L130 BoogieDeclarations]: Found specification of procedure imon_disconnect [2021-12-14 17:40:48,153 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_disconnect [2021-12-14 17:40:48,153 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2021-12-14 17:40:48,153 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2021-12-14 17:40:48,153 INFO L130 BoogieDeclarations]: Found specification of procedure rc_g_keycode_from_table [2021-12-14 17:40:48,153 INFO L138 BoogieDeclarations]: Found implementation of procedure rc_g_keycode_from_table [2021-12-14 17:40:48,153 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 17:40:48,153 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 17:40:48,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2021-12-14 17:40:48,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2021-12-14 17:40:48,154 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-14 17:40:48,154 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-14 17:40:48,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 17:40:48,155 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2021-12-14 17:40:48,155 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2021-12-14 17:40:48,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_10 [2021-12-14 17:40:48,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_10 [2021-12-14 17:40:48,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 17:40:48,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_11 [2021-12-14 17:40:48,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_11 [2021-12-14 17:40:48,155 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2021-12-14 17:40:48,155 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2021-12-14 17:40:48,156 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-14 17:40:48,156 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-14 17:40:48,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2021-12-14 17:40:48,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2021-12-14 17:40:48,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 17:40:48,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 17:40:48,158 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2021-12-14 17:40:48,158 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2021-12-14 17:40:48,158 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-14 17:40:48,158 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-14 17:40:48,158 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-14 17:40:48,158 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-14 17:40:48,158 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-14 17:40:48,159 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-14 17:40:48,159 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-14 17:40:48,159 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-14 17:40:48,159 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2021-12-14 17:40:48,159 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2021-12-14 17:40:48,159 INFO L130 BoogieDeclarations]: Found specification of procedure usb_rx_callback_intf1 [2021-12-14 17:40:48,160 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_rx_callback_intf1 [2021-12-14 17:40:48,160 INFO L130 BoogieDeclarations]: Found specification of procedure usb_rx_callback_intf0 [2021-12-14 17:40:48,160 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_rx_callback_intf0 [2021-12-14 17:40:48,160 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2021-12-14 17:40:48,160 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2021-12-14 17:40:48,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 17:40:48,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-14 17:40:48,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-14 17:40:48,161 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-14 17:40:48,161 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-14 17:40:48,161 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2021-12-14 17:40:48,161 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2021-12-14 17:40:48,161 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-14 17:40:48,161 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-14 17:40:48,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 17:40:48,161 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2021-12-14 17:40:48,161 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2021-12-14 17:40:48,162 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2021-12-14 17:40:48,162 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2021-12-14 17:40:48,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 17:40:48,162 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2021-12-14 17:40:48,163 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2021-12-14 17:40:48,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_7 [2021-12-14 17:40:48,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_7 [2021-12-14 17:40:48,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 17:40:48,163 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 17:40:48,164 INFO L130 BoogieDeclarations]: Found specification of procedure lcd_write [2021-12-14 17:40:48,164 INFO L138 BoogieDeclarations]: Found implementation of procedure lcd_write [2021-12-14 17:40:48,164 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-14 17:40:48,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-14 17:40:48,164 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-14 17:40:48,164 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-14 17:40:48,165 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 17:40:48,165 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 17:40:48,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 17:40:48,165 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2021-12-14 17:40:48,165 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2021-12-14 17:40:48,165 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2021-12-14 17:40:48,165 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2021-12-14 17:40:48,165 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2021-12-14 17:40:48,166 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2021-12-14 17:40:48,166 INFO L130 BoogieDeclarations]: Found specification of procedure imon_incoming_packet [2021-12-14 17:40:48,166 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_incoming_packet [2021-12-14 17:40:48,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 17:40:48,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 17:40:48,167 INFO L130 BoogieDeclarations]: Found specification of procedure imon_remote_key_lookup [2021-12-14 17:40:48,167 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_remote_key_lookup [2021-12-14 17:40:48,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 17:40:48,169 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2021-12-14 17:40:48,169 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2021-12-14 17:40:48,169 INFO L130 BoogieDeclarations]: Found specification of procedure tv2int [2021-12-14 17:40:48,170 INFO L138 BoogieDeclarations]: Found implementation of procedure tv2int [2021-12-14 17:40:48,171 INFO L130 BoogieDeclarations]: Found specification of procedure stabilize [2021-12-14 17:40:48,171 INFO L138 BoogieDeclarations]: Found implementation of procedure stabilize [2021-12-14 17:40:48,171 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2021-12-14 17:40:48,171 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2021-12-14 17:40:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_6 [2021-12-14 17:40:48,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_6 [2021-12-14 17:40:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-14 17:40:48,175 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-14 17:40:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 17:40:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure vfd_write [2021-12-14 17:40:48,176 INFO L138 BoogieDeclarations]: Found implementation of procedure vfd_write [2021-12-14 17:40:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-14 17:40:48,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-14 17:40:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 17:40:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2021-12-14 17:40:48,176 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2021-12-14 17:40:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-14 17:40:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2021-12-14 17:40:48,177 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2021-12-14 17:40:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure display_close [2021-12-14 17:40:48,177 INFO L138 BoogieDeclarations]: Found implementation of procedure display_close [2021-12-14 17:40:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 17:40:48,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 17:40:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2021-12-14 17:40:48,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2021-12-14 17:40:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2021-12-14 17:40:48,178 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2021-12-14 17:40:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2021-12-14 17:40:48,178 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2021-12-14 17:40:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure imon_find_endpoints [2021-12-14 17:40:48,178 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_find_endpoints [2021-12-14 17:40:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure display_open [2021-12-14 17:40:48,178 INFO L138 BoogieDeclarations]: Found implementation of procedure display_open [2021-12-14 17:40:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2021-12-14 17:40:48,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2021-12-14 17:40:48,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 17:40:48,179 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-12-14 17:40:48,179 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-12-14 17:40:48,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 17:40:48,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 17:40:48,658 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 17:40:48,660 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 17:40:51,409 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 17:40:59,411 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2021-12-14 17:41:01,899 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 17:41:01,918 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 17:41:01,919 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-14 17:41:01,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:41:01 BoogieIcfgContainer [2021-12-14 17:41:01,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 17:41:01,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 17:41:01,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 17:41:01,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 17:41:01,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:40:46" (1/3) ... [2021-12-14 17:41:01,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5859505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:41:01, skipping insertion in model container [2021-12-14 17:41:01,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:40:47" (2/3) ... [2021-12-14 17:41:01,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5859505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:41:01, skipping insertion in model container [2021-12-14 17:41:01,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:41:01" (3/3) ... [2021-12-14 17:41:01,927 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2021-12-14 17:41:01,931 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 17:41:01,932 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 17:41:01,975 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 17:41:01,982 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 [2021-12-14 17:41:01,982 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 17:41:02,027 INFO L276 IsEmpty]: Start isEmpty. Operand has 1488 states, 1096 states have (on average 1.3895985401459854) internal successors, (1523), 1127 states have internal predecessors, (1523), 319 states have call successors, (319), 73 states have call predecessors, (319), 71 states have return successors, (310), 305 states have call predecessors, (310), 310 states have call successors, (310) [2021-12-14 17:41:02,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-14 17:41:02,043 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:41:02,043 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:41:02,044 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:41:02,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:41:02,048 INFO L85 PathProgramCache]: Analyzing trace with hash 351694781, now seen corresponding path program 1 times [2021-12-14 17:41:02,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:41:02,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877975883] [2021-12-14 17:41:02,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:41:02,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:41:02,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:02,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:41:02,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:02,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:41:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:02,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:41:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:02,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:41:02,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:02,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:41:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:02,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:41:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:02,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:41:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:02,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:41:02,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:02,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:41:02,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:02,594 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-12-14 17:41:02,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:41:02,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877975883] [2021-12-14 17:41:02,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877975883] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:41:02,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:41:02,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:41:02,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845981483] [2021-12-14 17:41:02,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:41:02,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:41:02,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:41:02,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:41:02,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:41:02,628 INFO L87 Difference]: Start difference. First operand has 1488 states, 1096 states have (on average 1.3895985401459854) internal successors, (1523), 1127 states have internal predecessors, (1523), 319 states have call successors, (319), 73 states have call predecessors, (319), 71 states have return successors, (310), 305 states have call predecessors, (310), 310 states have call successors, (310) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-14 17:41:04,316 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:41:06,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:41:12,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:41:14,762 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 [] [2021-12-14 17:41:17,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:41:17,208 INFO L93 Difference]: Finished difference Result 4512 states and 6679 transitions. [2021-12-14 17:41:17,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:41:17,209 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 74 [2021-12-14 17:41:17,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:41:17,233 INFO L225 Difference]: With dead ends: 4512 [2021-12-14 17:41:17,233 INFO L226 Difference]: Without dead ends: 2999 [2021-12-14 17:41:17,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:41:17,250 INFO L933 BasicCegarLoop]: 2378 mSDtfsCounter, 2348 mSDsluCounter, 2956 mSDsCounter, 0 mSdLazyCounter, 1185 mSolverCounterSat, 739 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2589 SdHoareTripleChecker+Valid, 5334 SdHoareTripleChecker+Invalid, 1927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 739 IncrementalHoareTripleChecker+Valid, 1185 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2021-12-14 17:41:17,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2589 Valid, 5334 Invalid, 1927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [739 Valid, 1185 Invalid, 3 Unknown, 0 Unchecked, 14.3s Time] [2021-12-14 17:41:17,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2999 states. [2021-12-14 17:41:17,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2999 to 2875. [2021-12-14 17:41:17,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2875 states, 2137 states have (on average 1.3827795975666823) internal successors, (2955), 2173 states have internal predecessors, (2955), 597 states have call successors, (597), 141 states have call predecessors, (597), 140 states have return successors, (592), 582 states have call predecessors, (592), 592 states have call successors, (592) [2021-12-14 17:41:17,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 4144 transitions. [2021-12-14 17:41:17,448 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 4144 transitions. Word has length 74 [2021-12-14 17:41:17,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:41:17,450 INFO L470 AbstractCegarLoop]: Abstraction has 2875 states and 4144 transitions. [2021-12-14 17:41:17,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-14 17:41:17,450 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 4144 transitions. [2021-12-14 17:41:17,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-14 17:41:17,456 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:41:17,457 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:41:17,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 17:41:17,458 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:41:17,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:41:17,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1853548450, now seen corresponding path program 1 times [2021-12-14 17:41:17,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:41:17,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582044857] [2021-12-14 17:41:17,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:41:17,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:41:17,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:17,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:41:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:17,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:41:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:17,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:41:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:17,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:41:17,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:17,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:41:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:17,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:41:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:17,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:41:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:17,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:41:17,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:17,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:41:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:17,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 17:41:17,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:17,867 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-12-14 17:41:17,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:41:17,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582044857] [2021-12-14 17:41:17,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582044857] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:41:17,868 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:41:17,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:41:17,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133304406] [2021-12-14 17:41:17,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:41:17,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:41:17,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:41:17,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:41:17,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:41:17,870 INFO L87 Difference]: Start difference. First operand 2875 states and 4144 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-14 17:41:20,742 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 [] [2021-12-14 17:41:22,322 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:41:25,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:41:29,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:41:32,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:41:34,117 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:41:36,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:41:38,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:41:38,461 INFO L93 Difference]: Finished difference Result 8826 states and 13022 transitions. [2021-12-14 17:41:38,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:41:38,462 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 83 [2021-12-14 17:41:38,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:41:38,489 INFO L225 Difference]: With dead ends: 8826 [2021-12-14 17:41:38,490 INFO L226 Difference]: Without dead ends: 5974 [2021-12-14 17:41:38,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:41:38,502 INFO L933 BasicCegarLoop]: 2548 mSDtfsCounter, 2377 mSDsluCounter, 2992 mSDsCounter, 0 mSdLazyCounter, 1231 mSolverCounterSat, 715 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2608 SdHoareTripleChecker+Valid, 5540 SdHoareTripleChecker+Invalid, 1951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 715 IncrementalHoareTripleChecker+Valid, 1231 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2021-12-14 17:41:38,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2608 Valid, 5540 Invalid, 1951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [715 Valid, 1231 Invalid, 5 Unknown, 0 Unchecked, 20.3s Time] [2021-12-14 17:41:38,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5974 states. [2021-12-14 17:41:38,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5974 to 5768. [2021-12-14 17:41:38,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5768 states, 4289 states have (on average 1.3802751224061554) internal successors, (5920), 4359 states have internal predecessors, (5920), 1186 states have call successors, (1186), 281 states have call predecessors, (1186), 292 states have return successors, (1283), 1169 states have call predecessors, (1283), 1181 states have call successors, (1283) [2021-12-14 17:41:38,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 8389 transitions. [2021-12-14 17:41:38,696 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 8389 transitions. Word has length 83 [2021-12-14 17:41:38,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:41:38,698 INFO L470 AbstractCegarLoop]: Abstraction has 5768 states and 8389 transitions. [2021-12-14 17:41:38,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-14 17:41:38,699 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 8389 transitions. [2021-12-14 17:41:38,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-14 17:41:38,702 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:41:38,702 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:41:38,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 17:41:38,702 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:41:38,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:41:38,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1624832766, now seen corresponding path program 1 times [2021-12-14 17:41:38,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:41:38,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710423771] [2021-12-14 17:41:38,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:41:38,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:41:38,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:38,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:41:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:38,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:41:38,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:38,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:41:38,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:38,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:41:38,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:38,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:41:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:38,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:41:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:38,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:41:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:38,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:41:38,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:38,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:41:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:38,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 17:41:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:41:38,968 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-12-14 17:41:38,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:41:38,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710423771] [2021-12-14 17:41:38,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710423771] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:41:38,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:41:38,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:41:38,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734826358] [2021-12-14 17:41:38,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:41:38,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:41:38,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:41:38,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:41:38,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:41:38,971 INFO L87 Difference]: Start difference. First operand 5768 states and 8389 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-14 17:41:42,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:41:45,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:41:52,650 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []