./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--ttusb-budget--dvb-ttusb-budget.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 fa270183f30c4108ea2b2e80e3a005f959ee3ae47a4a31957eaa79c7226d5c4e --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 16:34:28,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 16:34:28,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 16:34:28,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 16:34:28,678 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 16:34:28,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 16:34:28,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 16:34:28,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 16:34:28,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 16:34:28,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 16:34:28,691 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 16:34:28,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 16:34:28,693 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 16:34:28,695 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 16:34:28,696 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 16:34:28,698 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 16:34:28,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 16:34:28,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 16:34:28,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 16:34:28,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 16:34:28,708 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 16:34:28,709 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 16:34:28,710 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 16:34:28,711 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 16:34:28,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 16:34:28,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 16:34:28,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 16:34:28,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 16:34:28,718 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 16:34:28,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 16:34:28,719 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 16:34:28,719 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 16:34:28,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 16:34:28,721 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 16:34:28,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 16:34:28,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 16:34:28,723 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 16:34:28,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 16:34:28,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 16:34:28,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 16:34:28,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 16:34:28,726 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 16:34:28,747 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 16:34:28,748 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 16:34:28,748 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 16:34:28,748 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 16:34:28,749 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 16:34:28,749 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 16:34:28,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 16:34:28,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 16:34:28,750 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 16:34:28,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 16:34:28,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 16:34:28,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 16:34:28,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 16:34:28,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 16:34:28,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 16:34:28,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 16:34:28,751 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 16:34:28,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 16:34:28,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 16:34:28,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 16:34:28,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 16:34:28,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:34:28,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 16:34:28,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 16:34:28,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 16:34:28,753 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 16:34:28,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 16:34:28,754 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 16:34:28,754 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 16:34:28,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 16:34:28,755 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 16:34:28,755 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa270183f30c4108ea2b2e80e3a005f959ee3ae47a4a31957eaa79c7226d5c4e [2021-12-21 16:34:28,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 16:34:28,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 16:34:29,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 16:34:29,001 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 16:34:29,002 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 16:34:29,003 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko-entry_point.cil.out.i [2021-12-21 16:34:29,060 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adc99ca0d/273a7128f2454260b93c27019a3a5278/FLAG6ea183f9e [2021-12-21 16:34:29,832 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 16:34:29,833 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko-entry_point.cil.out.i [2021-12-21 16:34:29,873 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adc99ca0d/273a7128f2454260b93c27019a3a5278/FLAG6ea183f9e [2021-12-21 16:34:30,083 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adc99ca0d/273a7128f2454260b93c27019a3a5278 [2021-12-21 16:34:30,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 16:34:30,086 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 16:34:30,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 16:34:30,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 16:34:30,091 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 16:34:30,092 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:34:30" (1/1) ... [2021-12-21 16:34:30,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50f0c7ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:34:30, skipping insertion in model container [2021-12-21 16:34:30,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:34:30" (1/1) ... [2021-12-21 16:34:30,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 16:34:30,191 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 16:34:31,395 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko-entry_point.cil.out.i[277190,277203] [2021-12-21 16:34:31,608 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:34:31,666 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 16:34:31,896 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko-entry_point.cil.out.i[277190,277203] [2021-12-21 16:34:31,914 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:34:31,975 INFO L208 MainTranslator]: Completed translation [2021-12-21 16:34:31,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:34:31 WrapperNode [2021-12-21 16:34:31,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 16:34:31,978 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 16:34:31,978 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 16:34:31,978 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 16:34:31,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:34:31" (1/1) ... [2021-12-21 16:34:32,072 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:34:31" (1/1) ... [2021-12-21 16:34:32,187 INFO L137 Inliner]: procedures = 225, calls = 1809, calls flagged for inlining = 92, calls inlined = 81, statements flattened = 3779 [2021-12-21 16:34:32,188 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 16:34:32,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 16:34:32,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 16:34:32,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 16:34:32,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:34:31" (1/1) ... [2021-12-21 16:34:32,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:34:31" (1/1) ... [2021-12-21 16:34:32,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:34:31" (1/1) ... [2021-12-21 16:34:32,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:34:31" (1/1) ... [2021-12-21 16:34:32,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:34:31" (1/1) ... [2021-12-21 16:34:32,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:34:31" (1/1) ... [2021-12-21 16:34:32,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:34:31" (1/1) ... [2021-12-21 16:34:32,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 16:34:32,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 16:34:32,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 16:34:32,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 16:34:32,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:34:31" (1/1) ... [2021-12-21 16:34:32,419 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:34:32,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:34:32,441 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) [2021-12-21 16:34:32,454 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 [2021-12-21 16:34:32,478 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-21 16:34:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-21 16:34:32,479 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-21 16:34:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-21 16:34:32,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 16:34:32,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 16:34:32,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 16:34:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 16:34:32,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-21 16:34:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-21 16:34:32,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_semusb_of_ttusb [2021-12-21 16:34:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_semusb_of_ttusb [2021-12-21 16:34:32,480 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2021-12-21 16:34:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2021-12-21 16:34:32,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 16:34:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 16:34:32,480 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-21 16:34:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-21 16:34:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-21 16:34:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-21 16:34:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_put [2021-12-21 16:34:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_put [2021-12-21 16:34:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-21 16:34:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-21 16:34:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-21 16:34:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-21 16:34:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2021-12-21 16:34:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2021-12-21 16:34:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-21 16:34:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-21 16:34:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 16:34:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-21 16:34:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 16:34:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure tda1004x_writereg [2021-12-21 16:34:32,483 INFO L138 BoogieDeclarations]: Found implementation of procedure tda1004x_writereg [2021-12-21 16:34:32,483 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2021-12-21 16:34:32,483 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2021-12-21 16:34:32,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 16:34:32,483 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2021-12-21 16:34:32,484 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2021-12-21 16:34:32,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 16:34:32,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_semi2c_of_ttusb [2021-12-21 16:34:32,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_semi2c_of_ttusb [2021-12-21 16:34:32,484 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-21 16:34:32,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-21 16:34:32,484 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-21 16:34:32,485 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-21 16:34:32,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 16:34:32,485 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-21 16:34:32,485 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-21 16:34:32,485 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-21 16:34:32,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-21 16:34:32,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 16:34:32,485 INFO L130 BoogieDeclarations]: Found specification of procedure master_xfer [2021-12-21 16:34:32,486 INFO L138 BoogieDeclarations]: Found implementation of procedure master_xfer [2021-12-21 16:34:32,486 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2021-12-21 16:34:32,486 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2021-12-21 16:34:32,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 16:34:32,487 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_frontend_detach [2021-12-21 16:34:32,487 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_frontend_detach [2021-12-21 16:34:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-21 16:34:32,488 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-21 16:34:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2021-12-21 16:34:32,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2021-12-21 16:34:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-21 16:34:32,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-21 16:34:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_stop_iso_xfer [2021-12-21 16:34:32,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_stop_iso_xfer [2021-12-21 16:34:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-21 16:34:32,489 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-21 16:34:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 16:34:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2021-12-21 16:34:32,489 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2021-12-21 16:34:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-21 16:34:32,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-21 16:34:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_cmd [2021-12-21 16:34:32,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_cmd [2021-12-21 16:34:32,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 16:34:32,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-21 16:34:32,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-21 16:34:32,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 16:34:32,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-21 16:34:32,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-21 16:34:32,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 16:34:32,491 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_get [2021-12-21 16:34:32,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_get [2021-12-21 16:34:32,491 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2021-12-21 16:34:32,491 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2021-12-21 16:34:32,492 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2021-12-21 16:34:32,492 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2021-12-21 16:34:32,492 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_del_adapter [2021-12-21 16:34:32,492 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_del_adapter [2021-12-21 16:34:32,492 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_result [2021-12-21 16:34:32,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_result [2021-12-21 16:34:32,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_semi2c_of_ttusb [2021-12-21 16:34:32,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_semi2c_of_ttusb [2021-12-21 16:34:32,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 16:34:32,493 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_free_iso_urbs [2021-12-21 16:34:32,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_free_iso_urbs [2021-12-21 16:34:32,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 16:34:32,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 16:34:32,991 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 16:34:32,993 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 16:34:33,588 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 16:34:41,392 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 16:34:41,404 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 16:34:41,407 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 16:34:41,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:34:41 BoogieIcfgContainer [2021-12-21 16:34:41,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 16:34:41,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 16:34:41,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 16:34:41,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 16:34:41,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 04:34:30" (1/3) ... [2021-12-21 16:34:41,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a7bc13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:34:41, skipping insertion in model container [2021-12-21 16:34:41,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:34:31" (2/3) ... [2021-12-21 16:34:41,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a7bc13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:34:41, skipping insertion in model container [2021-12-21 16:34:41,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:34:41" (3/3) ... [2021-12-21 16:34:41,417 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--ttusb-budget--dvb-ttusb-budget.ko-entry_point.cil.out.i [2021-12-21 16:34:41,421 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 16:34:41,424 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 16:34:41,460 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 16:34:41,464 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 [2021-12-21 16:34:41,465 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 16:34:41,488 INFO L276 IsEmpty]: Start isEmpty. Operand has 838 states, 620 states have (on average 1.4016129032258065) internal successors, (869), 648 states have internal predecessors, (869), 175 states have call successors, (175), 42 states have call predecessors, (175), 41 states have return successors, (169), 169 states have call predecessors, (169), 169 states have call successors, (169) [2021-12-21 16:34:41,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-12-21 16:34:41,498 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:34:41,499 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:34:41,499 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:34:41,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:34:41,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1865142948, now seen corresponding path program 1 times [2021-12-21 16:34:41,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:34:41,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391439057] [2021-12-21 16:34:41,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:34:41,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:34:41,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:41,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:34:41,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:42,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:34:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:42,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:34:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:42,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:34:42,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:42,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:34:42,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:42,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:34:42,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:42,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:34:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:42,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:34:42,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:42,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:34:42,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:42,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:34:42,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:42,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:34:42,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:42,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:34:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:42,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:34:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:42,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:34:42,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:42,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:34:42,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:42,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 16:34:42,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:42,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:34:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:42,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:34:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:42,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-21 16:34:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:42,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:34:42,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:42,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-21 16:34:42,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:42,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:34:42,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:42,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-21 16:34:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:42,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:34:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:42,415 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2021-12-21 16:34:42,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:34:42,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391439057] [2021-12-21 16:34:42,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391439057] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:34:42,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:34:42,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 16:34:42,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687348365] [2021-12-21 16:34:42,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:34:42,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 16:34:42,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:34:42,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 16:34:42,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:34:42,444 INFO L87 Difference]: Start difference. First operand has 838 states, 620 states have (on average 1.4016129032258065) internal successors, (869), 648 states have internal predecessors, (869), 175 states have call successors, (175), 42 states have call predecessors, (175), 41 states have return successors, (169), 169 states have call predecessors, (169), 169 states have call successors, (169) Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-21 16:34:47,571 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 [] [2021-12-21 16:34:49,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:34:52,609 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:34:54,635 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:34:56,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:34:59,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:34:59,127 INFO L93 Difference]: Finished difference Result 1710 states and 2586 transitions. [2021-12-21 16:34:59,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 16:34:59,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 146 [2021-12-21 16:34:59,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:34:59,153 INFO L225 Difference]: With dead ends: 1710 [2021-12-21 16:34:59,153 INFO L226 Difference]: Without dead ends: 864 [2021-12-21 16:34:59,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:34:59,170 INFO L933 BasicCegarLoop]: 1169 mSDtfsCounter, 278 mSDsluCounter, 1903 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 385 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 3072 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 385 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2021-12-21 16:34:59,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 3072 Invalid, 1235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [385 Valid, 845 Invalid, 5 Unknown, 0 Unchecked, 16.5s Time] [2021-12-21 16:34:59,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2021-12-21 16:34:59,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 825. [2021-12-21 16:34:59,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 615 states have (on average 1.3853658536585365) internal successors, (852), 635 states have internal predecessors, (852), 169 states have call successors, (169), 41 states have call predecessors, (169), 40 states have return successors, (159), 159 states have call predecessors, (159), 159 states have call successors, (159) [2021-12-21 16:34:59,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1180 transitions. [2021-12-21 16:34:59,274 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1180 transitions. Word has length 146 [2021-12-21 16:34:59,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:34:59,274 INFO L470 AbstractCegarLoop]: Abstraction has 825 states and 1180 transitions. [2021-12-21 16:34:59,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-21 16:34:59,275 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1180 transitions. [2021-12-21 16:34:59,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-12-21 16:34:59,277 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:34:59,278 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:34:59,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 16:34:59,278 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:34:59,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:34:59,279 INFO L85 PathProgramCache]: Analyzing trace with hash -218311248, now seen corresponding path program 1 times [2021-12-21 16:34:59,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:34:59,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638972048] [2021-12-21 16:34:59,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:34:59,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:34:59,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:59,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:34:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:59,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:34:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:59,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:34:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:59,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:34:59,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:59,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:34:59,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:59,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:34:59,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:59,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:34:59,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:59,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:34:59,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:59,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:34:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:59,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:34:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:59,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:34:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:59,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:34:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:59,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:34:59,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:59,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:34:59,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:59,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:34:59,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:59,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 16:34:59,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:59,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:34:59,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:59,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:34:59,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:59,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-21 16:34:59,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:59,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:34:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:59,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-21 16:34:59,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:59,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:34:59,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:59,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-21 16:34:59,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:59,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:34:59,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:34:59,897 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2021-12-21 16:34:59,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:34:59,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638972048] [2021-12-21 16:34:59,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638972048] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:34:59,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:34:59,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:34:59,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70809514] [2021-12-21 16:34:59,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:34:59,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:34:59,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:34:59,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:34:59,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:34:59,901 INFO L87 Difference]: Start difference. First operand 825 states and 1180 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2021-12-21 16:35:04,801 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:35:06,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:35:10,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:35:12,675 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:35:14,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:35:17,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:35:19,833 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:35:21,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:35:21,932 INFO L93 Difference]: Finished difference Result 2474 states and 3611 transitions. [2021-12-21 16:35:21,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 16:35:21,933 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 146 [2021-12-21 16:35:21,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:35:21,941 INFO L225 Difference]: With dead ends: 2474 [2021-12-21 16:35:21,941 INFO L226 Difference]: Without dead ends: 1675 [2021-12-21 16:35:21,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:35:21,945 INFO L933 BasicCegarLoop]: 1299 mSDtfsCounter, 1628 mSDsluCounter, 2353 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 820 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1751 SdHoareTripleChecker+Valid, 3652 SdHoareTripleChecker+Invalid, 1853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 820 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2021-12-21 16:35:21,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1751 Valid, 3652 Invalid, 1853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [820 Valid, 1026 Invalid, 7 Unknown, 0 Unchecked, 21.7s Time] [2021-12-21 16:35:21,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2021-12-21 16:35:21,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 1593. [2021-12-21 16:35:21,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1197 states have (on average 1.3893065998329157) internal successors, (1663), 1228 states have internal predecessors, (1663), 316 states have call successors, (316), 80 states have call predecessors, (316), 79 states have return successors, (306), 306 states have call predecessors, (306), 306 states have call successors, (306) [2021-12-21 16:35:22,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 2285 transitions. [2021-12-21 16:35:22,004 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 2285 transitions. Word has length 146 [2021-12-21 16:35:22,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:35:22,004 INFO L470 AbstractCegarLoop]: Abstraction has 1593 states and 2285 transitions. [2021-12-21 16:35:22,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2021-12-21 16:35:22,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 2285 transitions. [2021-12-21 16:35:22,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-21 16:35:22,007 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:35:22,007 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:35:22,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 16:35:22,007 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:35:22,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:35:22,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1388631459, now seen corresponding path program 1 times [2021-12-21 16:35:22,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:35:22,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509439954] [2021-12-21 16:35:22,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:35:22,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:35:22,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:35:22,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:35:22,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:35:22,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:35:22,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:35:22,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:35:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:35:22,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:35:22,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:35:22,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:35:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:35:22,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:35:22,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:35:22,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:35:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:35:22,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:35:22,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:35:22,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:35:22,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:35:22,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:35:22,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:35:22,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:35:22,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:35:22,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:35:22,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:35:22,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:35:22,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:35:22,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:35:22,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:35:22,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:35:22,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:35:22,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 16:35:22,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:35:22,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:35:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:35:22,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:35:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:35:22,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-21 16:35:22,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:35:22,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:35:22,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:35:22,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-21 16:35:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:35:22,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:35:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:35:22,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-21 16:35:22,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:35:22,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:35:22,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:35:22,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 16:35:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:35:22,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-21 16:35:22,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:35:22,567 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2021-12-21 16:35:22,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:35:22,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509439954] [2021-12-21 16:35:22,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509439954] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:35:22,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:35:22,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:35:22,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012205052] [2021-12-21 16:35:22,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:35:22,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:35:22,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:35:22,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:35:22,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:35:22,570 INFO L87 Difference]: Start difference. First operand 1593 states and 2285 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-21 16:35:27,933 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 [] [2021-12-21 16:35:30,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:35:34,424 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:35:36,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:35:38,442 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []