./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--gr_udc.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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--gr_udc.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 6932181a2a9c8d4d7c700844e1db6a95829edf2ea099e17754a10b04a114b5cd --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 18:24:18,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 18:24:18,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 18:24:18,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 18:24:18,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 18:24:18,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 18:24:18,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 18:24:18,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 18:24:18,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 18:24:18,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 18:24:18,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 18:24:18,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 18:24:18,710 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 18:24:18,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 18:24:18,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 18:24:18,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 18:24:18,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 18:24:18,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 18:24:18,721 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 18:24:18,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 18:24:18,728 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 18:24:18,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 18:24:18,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 18:24:18,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 18:24:18,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 18:24:18,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 18:24:18,738 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 18:24:18,739 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 18:24:18,740 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 18:24:18,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 18:24:18,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 18:24:18,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 18:24:18,744 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 18:24:18,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 18:24:18,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 18:24:18,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 18:24:18,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 18:24:18,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 18:24:18,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 18:24:18,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 18:24:18,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 18:24:18,751 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 18:24:18,782 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 18:24:18,783 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 18:24:18,783 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 18:24:18,783 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 18:24:18,784 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 18:24:18,784 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 18:24:18,785 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 18:24:18,785 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 18:24:18,785 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 18:24:18,786 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 18:24:18,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 18:24:18,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 18:24:18,787 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 18:24:18,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 18:24:18,787 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 18:24:18,787 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 18:24:18,787 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 18:24:18,788 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 18:24:18,788 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 18:24:18,788 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 18:24:18,788 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 18:24:18,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:24:18,789 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 18:24:18,789 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 18:24:18,789 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 18:24:18,789 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 18:24:18,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 18:24:18,790 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 18:24:18,790 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 18:24:18,790 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 18:24:18,790 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 18:24:18,790 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6932181a2a9c8d4d7c700844e1db6a95829edf2ea099e17754a10b04a114b5cd [2021-12-14 18:24:19,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 18:24:19,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 18:24:19,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 18:24:19,058 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 18:24:19,058 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 18:24:19,059 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i [2021-12-14 18:24:19,129 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af60bd0cf/f28fc40ed94f42cb876513b3051362af/FLAG253f41208 [2021-12-14 18:24:19,726 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 18:24:19,727 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i [2021-12-14 18:24:19,765 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af60bd0cf/f28fc40ed94f42cb876513b3051362af/FLAG253f41208 [2021-12-14 18:24:19,906 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af60bd0cf/f28fc40ed94f42cb876513b3051362af [2021-12-14 18:24:19,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 18:24:19,909 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 18:24:19,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 18:24:19,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 18:24:19,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 18:24:19,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:24:19" (1/1) ... [2021-12-14 18:24:19,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24850bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:24:19, skipping insertion in model container [2021-12-14 18:24:19,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:24:19" (1/1) ... [2021-12-14 18:24:19,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 18:24:20,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 18:24:21,330 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i[213066,213079] [2021-12-14 18:24:21,352 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:24:21,375 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 18:24:21,651 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i[213066,213079] [2021-12-14 18:24:21,660 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:24:21,743 INFO L208 MainTranslator]: Completed translation [2021-12-14 18:24:21,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:24:21 WrapperNode [2021-12-14 18:24:21,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 18:24:21,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 18:24:21,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 18:24:21,746 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 18:24:21,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:24:21" (1/1) ... [2021-12-14 18:24:21,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:24:21" (1/1) ... [2021-12-14 18:24:22,003 INFO L137 Inliner]: procedures = 222, calls = 2591, calls flagged for inlining = 88, calls inlined = 85, statements flattened = 5016 [2021-12-14 18:24:22,003 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 18:24:22,004 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 18:24:22,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 18:24:22,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 18:24:22,019 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:24:21" (1/1) ... [2021-12-14 18:24:22,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:24:21" (1/1) ... [2021-12-14 18:24:22,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:24:21" (1/1) ... [2021-12-14 18:24:22,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:24:21" (1/1) ... [2021-12-14 18:24:22,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:24:21" (1/1) ... [2021-12-14 18:24:22,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:24:21" (1/1) ... [2021-12-14 18:24:22,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:24:21" (1/1) ... [2021-12-14 18:24:22,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 18:24:22,301 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 18:24:22,301 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 18:24:22,302 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 18:24:22,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:24:21" (1/1) ... [2021-12-14 18:24:22,309 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:24:22,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:24:22,332 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 18:24:22,347 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 18:24:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure gr_free_dma_desc_chain [2021-12-14 18:24:22,371 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_free_dma_desc_chain [2021-12-14 18:24:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure gr_finish_request [2021-12-14 18:24:22,371 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_finish_request [2021-12-14 18:24:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 18:24:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure gr_queue [2021-12-14 18:24:22,372 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_queue [2021-12-14 18:24:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 18:24:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 18:24:22,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 18:24:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure seq_puts [2021-12-14 18:24:22,372 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_puts [2021-12-14 18:24:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 18:24:22,373 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 18:24:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_halt_wedge [2021-12-14 18:24:22,373 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_halt_wedge [2021-12-14 18:24:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-14 18:24:22,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-14 18:24:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 18:24:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 18:24:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-14 18:24:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-14 18:24:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure usb_speed_string [2021-12-14 18:24:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_speed_string [2021-12-14 18:24:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure gr_control_stall [2021-12-14 18:24:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_control_stall [2021-12-14 18:24:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure gr_stop_activity [2021-12-14 18:24:22,375 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_stop_activity [2021-12-14 18:24:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 18:24:22,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 18:24:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_enable [2021-12-14 18:24:22,375 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_enable [2021-12-14 18:24:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure gr_set_halt_wedge [2021-12-14 18:24:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_set_halt_wedge [2021-12-14 18:24:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 18:24:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 18:24:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2021-12-14 18:24:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2021-12-14 18:24:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 18:24:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 18:24:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure gr_queue_int [2021-12-14 18:24:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_queue_int [2021-12-14 18:24:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 18:24:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-14 18:24:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-14 18:24:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure gr_dequeue [2021-12-14 18:24:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_dequeue [2021-12-14 18:24:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_remove [2021-12-14 18:24:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_remove [2021-12-14 18:24:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32be [2021-12-14 18:24:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32be [2021-12-14 18:24:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq [2021-12-14 18:24:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq [2021-12-14 18:24:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 18:24:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-14 18:24:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-14 18:24:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-14 18:24:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-14 18:24:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0_setup [2021-12-14 18:24:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0_setup [2021-12-14 18:24:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-14 18:24:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-14 18:24:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 18:24:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 18:24:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure gr_alloc_request [2021-12-14 18:24:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_alloc_request [2021-12-14 18:24:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure gr_wakeup [2021-12-14 18:24:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_wakeup [2021-12-14 18:24:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-12-14 18:24:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-12-14 18:24:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_reset [2021-12-14 18:24:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_reset [2021-12-14 18:24:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure gr_udc_stop [2021-12-14 18:24:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_udc_stop [2021-12-14 18:24:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_nuke [2021-12-14 18:24:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_nuke [2021-12-14 18:24:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure gr_fifo_flush [2021-12-14 18:24:22,382 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_fifo_flush [2021-12-14 18:24:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_disable [2021-12-14 18:24:22,382 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_disable [2021-12-14 18:24:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-14 18:24:22,382 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-14 18:24:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0out_requeue [2021-12-14 18:24:22,383 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0out_requeue [2021-12-14 18:24:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure gr_vbus_connected [2021-12-14 18:24:22,383 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_vbus_connected [2021-12-14 18:24:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure gr_enable_vbus_detect [2021-12-14 18:24:22,383 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_enable_vbus_detect [2021-12-14 18:24:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 18:24:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-14 18:24:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-14 18:24:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 18:24:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure gr_irq_handler [2021-12-14 18:24:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_irq_handler [2021-12-14 18:24:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure gr_set_wedge [2021-12-14 18:24:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_set_wedge [2021-12-14 18:24:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_threaded_irq [2021-12-14 18:24:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_threaded_irq [2021-12-14 18:24:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure gr_dfs_open [2021-12-14 18:24:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_dfs_open [2021-12-14 18:24:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32be [2021-12-14 18:24:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32be [2021-12-14 18:24:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0_respond_empty [2021-12-14 18:24:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0_respond_empty [2021-12-14 18:24:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 18:24:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure gr_irq [2021-12-14 18:24:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_irq [2021-12-14 18:24:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_init [2021-12-14 18:24:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_init [2021-12-14 18:24:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2021-12-14 18:24:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2021-12-14 18:24:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-14 18:24:22,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-14 18:24:22,387 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-14 18:24:22,387 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-14 18:24:22,387 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0_respond [2021-12-14 18:24:22,387 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0_respond [2021-12-14 18:24:22,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 18:24:22,388 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-12-14 18:24:22,388 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2021-12-14 18:24:22,388 INFO L130 BoogieDeclarations]: Found specification of procedure gr_disable_interrupts_and_pullup [2021-12-14 18:24:22,388 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_disable_interrupts_and_pullup [2021-12-14 18:24:22,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 18:24:22,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 18:24:22,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-14 18:24:22,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-14 18:24:22,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 18:24:22,389 INFO L130 BoogieDeclarations]: Found specification of procedure gr_request_irq [2021-12-14 18:24:22,389 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_request_irq [2021-12-14 18:24:22,389 INFO L130 BoogieDeclarations]: Found specification of procedure gr_add_dma_desc [2021-12-14 18:24:22,389 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_add_dma_desc [2021-12-14 18:24:22,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-14 18:24:22,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-14 18:24:22,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 18:24:22,390 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_set_state [2021-12-14 18:24:22,390 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_set_state [2021-12-14 18:24:22,390 INFO L130 BoogieDeclarations]: Found specification of procedure gr_abort_dma [2021-12-14 18:24:22,390 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_abort_dma [2021-12-14 18:24:22,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 18:24:22,390 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0state_string [2021-12-14 18:24:22,391 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0state_string [2021-12-14 18:24:22,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-14 18:24:22,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-14 18:24:22,391 INFO L130 BoogieDeclarations]: Found specification of procedure gr_fifo_status [2021-12-14 18:24:22,391 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_fifo_status [2021-12-14 18:24:22,391 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:24:22,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:24:22,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2021-12-14 18:24:22,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2021-12-14 18:24:22,392 INFO L130 BoogieDeclarations]: Found specification of procedure gr_set_address [2021-12-14 18:24:22,392 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_set_address [2021-12-14 18:24:22,392 INFO L130 BoogieDeclarations]: Found specification of procedure gr_dbgprint_request [2021-12-14 18:24:22,392 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_dbgprint_request [2021-12-14 18:24:22,392 INFO L130 BoogieDeclarations]: Found specification of procedure gr_free_request [2021-12-14 18:24:22,392 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_free_request [2021-12-14 18:24:22,392 INFO L130 BoogieDeclarations]: Found specification of procedure gr_udc_start [2021-12-14 18:24:22,393 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_udc_start [2021-12-14 18:24:22,393 INFO L130 BoogieDeclarations]: Found specification of procedure gr_set_ep0state [2021-12-14 18:24:22,393 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_set_ep0state [2021-12-14 18:24:22,393 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2021-12-14 18:24:22,393 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2021-12-14 18:24:22,393 INFO L130 BoogieDeclarations]: Found specification of procedure gr_dma_advance [2021-12-14 18:24:22,393 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_dma_advance [2021-12-14 18:24:22,394 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2021-12-14 18:24:22,394 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2021-12-14 18:24:22,394 INFO L130 BoogieDeclarations]: Found specification of procedure of_property_read_u32_index [2021-12-14 18:24:22,394 INFO L138 BoogieDeclarations]: Found implementation of procedure of_property_read_u32_index [2021-12-14 18:24:22,394 INFO L130 BoogieDeclarations]: Found specification of procedure gr_get_frame [2021-12-14 18:24:22,394 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_get_frame [2021-12-14 18:24:22,394 INFO L130 BoogieDeclarations]: Found specification of procedure gr_probe [2021-12-14 18:24:22,394 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_probe [2021-12-14 18:24:22,395 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_set_maxpacket_limit [2021-12-14 18:24:22,395 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_set_maxpacket_limit [2021-12-14 18:24:22,395 INFO L130 BoogieDeclarations]: Found specification of procedure gr_remove [2021-12-14 18:24:22,395 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_remove [2021-12-14 18:24:22,395 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0_respond_u16 [2021-12-14 18:24:22,395 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0_respond_u16 [2021-12-14 18:24:22,395 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-14 18:24:22,396 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-14 18:24:22,396 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-14 18:24:22,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-14 18:24:22,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 18:24:22,396 INFO L130 BoogieDeclarations]: Found specification of procedure gr_start_dma [2021-12-14 18:24:22,396 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_start_dma [2021-12-14 18:24:22,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 18:24:22,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 18:24:22,397 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-14 18:24:22,397 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-14 18:24:22,959 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 18:24:22,962 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 18:24:23,896 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 18:24:26,438 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 18:24:26,453 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 18:24:26,454 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 18:24:26,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:24:26 BoogieIcfgContainer [2021-12-14 18:24:26,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 18:24:26,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 18:24:26,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 18:24:26,463 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 18:24:26,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:24:19" (1/3) ... [2021-12-14 18:24:26,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9be1a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:24:26, skipping insertion in model container [2021-12-14 18:24:26,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:24:21" (2/3) ... [2021-12-14 18:24:26,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9be1a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:24:26, skipping insertion in model container [2021-12-14 18:24:26,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:24:26" (3/3) ... [2021-12-14 18:24:26,466 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i [2021-12-14 18:24:26,470 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 18:24:26,471 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 18:24:26,518 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 18:24:26,551 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 18:24:26,552 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 18:24:26,607 INFO L276 IsEmpty]: Start isEmpty. Operand has 1488 states, 1049 states have (on average 1.3755958055290753) internal successors, (1443), 1093 states have internal predecessors, (1443), 352 states have call successors, (352), 86 states have call predecessors, (352), 85 states have return successors, (342), 330 states have call predecessors, (342), 342 states have call successors, (342) [2021-12-14 18:24:26,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-14 18:24:26,625 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:24:26,626 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:24:26,627 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:24:26,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:24:26,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1691222635, now seen corresponding path program 1 times [2021-12-14 18:24:26,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:24:26,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972246509] [2021-12-14 18:24:26,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:24:26,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:24:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:27,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:24:27,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:27,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:27,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:27,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:24:27,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:27,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:24:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:27,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:27,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:27,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:24:27,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:27,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:24:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:27,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:27,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:27,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:24:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:27,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:24:27,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:27,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:27,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:27,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:24:27,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:27,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 18:24:27,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:27,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:27,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:27,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 18:24:27,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:27,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:27,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:27,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 18:24:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:27,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:27,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:27,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-14 18:24:27,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:27,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:27,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:27,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-14 18:24:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:27,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:27,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 18:24:27,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:27,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:27,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:27,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-14 18:24:27,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:27,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:27,581 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2021-12-14 18:24:27,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:24:27,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972246509] [2021-12-14 18:24:27,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972246509] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:24:27,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:24:27,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:24:27,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616998250] [2021-12-14 18:24:27,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:24:27,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:24:27,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:24:27,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:24:27,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:24:27,617 INFO L87 Difference]: Start difference. First operand has 1488 states, 1049 states have (on average 1.3755958055290753) internal successors, (1443), 1093 states have internal predecessors, (1443), 352 states have call successors, (352), 86 states have call predecessors, (352), 85 states have return successors, (342), 330 states have call predecessors, (342), 342 states have call successors, (342) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-14 18:24:31,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:24:31,182 INFO L93 Difference]: Finished difference Result 3236 states and 4800 transitions. [2021-12-14 18:24:31,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 18:24:31,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 164 [2021-12-14 18:24:31,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:24:31,211 INFO L225 Difference]: With dead ends: 3236 [2021-12-14 18:24:31,211 INFO L226 Difference]: Without dead ends: 1731 [2021-12-14 18:24:31,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:24:31,229 INFO L933 BasicCegarLoop]: 1922 mSDtfsCounter, 1362 mSDsluCounter, 1771 mSDsCounter, 0 mSdLazyCounter, 1262 mSolverCounterSat, 989 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 3693 SdHoareTripleChecker+Invalid, 2251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 989 IncrementalHoareTripleChecker+Valid, 1262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-12-14 18:24:31,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1384 Valid, 3693 Invalid, 2251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [989 Valid, 1262 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-12-14 18:24:31,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2021-12-14 18:24:31,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1466. [2021-12-14 18:24:31,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1466 states, 1039 states have (on average 1.3647738209817133) internal successors, (1418), 1071 states have internal predecessors, (1418), 342 states have call successors, (342), 85 states have call predecessors, (342), 84 states have return successors, (341), 329 states have call predecessors, (341), 341 states have call successors, (341) [2021-12-14 18:24:31,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 2101 transitions. [2021-12-14 18:24:31,359 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 2101 transitions. Word has length 164 [2021-12-14 18:24:31,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:24:31,359 INFO L470 AbstractCegarLoop]: Abstraction has 1466 states and 2101 transitions. [2021-12-14 18:24:31,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-14 18:24:31,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 2101 transitions. [2021-12-14 18:24:31,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-14 18:24:31,367 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:24:31,367 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:24:31,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 18:24:31,368 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:24:31,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:24:31,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1874689437, now seen corresponding path program 1 times [2021-12-14 18:24:31,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:24:31,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388044014] [2021-12-14 18:24:31,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:24:31,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:24:31,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:31,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:24:31,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:31,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:31,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:24:31,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:31,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:24:31,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:31,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:31,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:31,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:24:31,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:31,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:24:31,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:31,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:31,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:31,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:24:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:31,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:24:31,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:31,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:31,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:31,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:24:31,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:31,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 18:24:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:31,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:31,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 18:24:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:31,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:31,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 18:24:31,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:31,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:31,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:31,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-14 18:24:31,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:31,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:31,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:31,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-14 18:24:31,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:31,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:31,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 18:24:31,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:31,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:31,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:31,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-14 18:24:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:31,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:31,906 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2021-12-14 18:24:31,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:24:31,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388044014] [2021-12-14 18:24:31,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388044014] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:24:31,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:24:31,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:24:31,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086608122] [2021-12-14 18:24:31,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:24:31,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:24:31,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:24:31,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:24:31,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:24:31,911 INFO L87 Difference]: Start difference. First operand 1466 states and 2101 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, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2021-12-14 18:24:38,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:24:38,012 INFO L93 Difference]: Finished difference Result 4731 states and 6875 transitions. [2021-12-14 18:24:38,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:24:38,012 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 164 [2021-12-14 18:24:38,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:24:38,075 INFO L225 Difference]: With dead ends: 4731 [2021-12-14 18:24:38,075 INFO L226 Difference]: Without dead ends: 3295 [2021-12-14 18:24:38,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-14 18:24:38,087 INFO L933 BasicCegarLoop]: 2118 mSDtfsCounter, 3921 mSDsluCounter, 4399 mSDsCounter, 0 mSdLazyCounter, 2965 mSolverCounterSat, 2014 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4116 SdHoareTripleChecker+Valid, 6517 SdHoareTripleChecker+Invalid, 4979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2014 IncrementalHoareTripleChecker+Valid, 2965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-12-14 18:24:38,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4116 Valid, 6517 Invalid, 4979 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2014 Valid, 2965 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2021-12-14 18:24:38,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3295 states. [2021-12-14 18:24:38,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3295 to 2784. [2021-12-14 18:24:38,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2784 states, 1979 states have (on average 1.3643254168772108) internal successors, (2700), 2042 states have internal predecessors, (2700), 641 states have call successors, (641), 164 states have call predecessors, (641), 163 states have return successors, (640), 616 states have call predecessors, (640), 640 states have call successors, (640) [2021-12-14 18:24:38,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2784 states to 2784 states and 3981 transitions. [2021-12-14 18:24:38,226 INFO L78 Accepts]: Start accepts. Automaton has 2784 states and 3981 transitions. Word has length 164 [2021-12-14 18:24:38,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:24:38,229 INFO L470 AbstractCegarLoop]: Abstraction has 2784 states and 3981 transitions. [2021-12-14 18:24:38,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2021-12-14 18:24:38,230 INFO L276 IsEmpty]: Start isEmpty. Operand 2784 states and 3981 transitions. [2021-12-14 18:24:38,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-12-14 18:24:38,246 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:24:38,247 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:24:38,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 18:24:38,247 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:24:38,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:24:38,248 INFO L85 PathProgramCache]: Analyzing trace with hash -804330205, now seen corresponding path program 1 times [2021-12-14 18:24:38,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:24:38,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494229879] [2021-12-14 18:24:38,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:24:38,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:24:38,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:24:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:24:38,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:24:38,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:38,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:24:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:24:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:38,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:24:38,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:24:38,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:24:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 18:24:38,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:38,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 18:24:38,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:38,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 18:24:38,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:38,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-14 18:24:38,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:38,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-14 18:24:38,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:38,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 18:24:38,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:38,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-14 18:24:38,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-14 18:24:38,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-14 18:24:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-14 18:24:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-14 18:24:38,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-14 18:24:38,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:38,854 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2021-12-14 18:24:38,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:24:38,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494229879] [2021-12-14 18:24:38,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494229879] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:24:38,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:24:38,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 18:24:38,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192569086] [2021-12-14 18:24:38,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:24:38,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 18:24:38,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:24:38,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 18:24:38,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-14 18:24:38,857 INFO L87 Difference]: Start difference. First operand 2784 states and 3981 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-14 18:24:47,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:24:47,057 INFO L93 Difference]: Finished difference Result 9681 states and 14153 transitions. [2021-12-14 18:24:47,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-14 18:24:47,058 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 233 [2021-12-14 18:24:47,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:24:47,117 INFO L225 Difference]: With dead ends: 9681 [2021-12-14 18:24:47,117 INFO L226 Difference]: Without dead ends: 6927 [2021-12-14 18:24:47,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-14 18:24:47,141 INFO L933 BasicCegarLoop]: 2063 mSDtfsCounter, 7252 mSDsluCounter, 6402 mSDsCounter, 0 mSdLazyCounter, 5228 mSolverCounterSat, 4628 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7557 SdHoareTripleChecker+Valid, 8465 SdHoareTripleChecker+Invalid, 9856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4628 IncrementalHoareTripleChecker+Valid, 5228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-12-14 18:24:47,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7557 Valid, 8465 Invalid, 9856 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4628 Valid, 5228 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2021-12-14 18:24:47,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6927 states. [2021-12-14 18:24:47,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6927 to 5537. [2021-12-14 18:24:47,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5537 states, 3940 states have (on average 1.365989847715736) internal successors, (5382), 4074 states have internal predecessors, (5382), 1269 states have call successors, (1269), 328 states have call predecessors, (1269), 327 states have return successors, (1268), 1212 states have call predecessors, (1268), 1268 states have call successors, (1268) [2021-12-14 18:24:47,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5537 states to 5537 states and 7919 transitions. [2021-12-14 18:24:47,455 INFO L78 Accepts]: Start accepts. Automaton has 5537 states and 7919 transitions. Word has length 233 [2021-12-14 18:24:47,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:24:47,456 INFO L470 AbstractCegarLoop]: Abstraction has 5537 states and 7919 transitions. [2021-12-14 18:24:47,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-14 18:24:47,456 INFO L276 IsEmpty]: Start isEmpty. Operand 5537 states and 7919 transitions. [2021-12-14 18:24:47,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-12-14 18:24:47,467 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:24:47,467 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:24:47,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 18:24:47,468 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:24:47,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:24:47,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1255652343, now seen corresponding path program 1 times [2021-12-14 18:24:47,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:24:47,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740101106] [2021-12-14 18:24:47,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:24:47,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:24:47,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:24:47,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:24:47,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:24:47,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:47,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:24:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:24:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:47,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:24:47,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:24:47,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:47,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:24:47,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 18:24:47,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:47,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 18:24:47,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 18:24:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:47,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-14 18:24:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-14 18:24:47,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:47,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 18:24:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:47,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-14 18:24:47,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-14 18:24:47,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-14 18:24:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:47,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-14 18:24:47,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:48,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-14 18:24:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:48,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-14 18:24:48,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:48,012 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2021-12-14 18:24:48,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:24:48,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740101106] [2021-12-14 18:24:48,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740101106] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:24:48,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:24:48,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 18:24:48,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687925207] [2021-12-14 18:24:48,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:24:48,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 18:24:48,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:24:48,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 18:24:48,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-14 18:24:48,015 INFO L87 Difference]: Start difference. First operand 5537 states and 7919 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-14 18:24:56,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:24:56,014 INFO L93 Difference]: Finished difference Result 19306 states and 28245 transitions. [2021-12-14 18:24:56,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-14 18:24:56,015 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 230 [2021-12-14 18:24:56,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:24:56,096 INFO L225 Difference]: With dead ends: 19306 [2021-12-14 18:24:56,097 INFO L226 Difference]: Without dead ends: 13799 [2021-12-14 18:24:56,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-14 18:24:56,127 INFO L933 BasicCegarLoop]: 2068 mSDtfsCounter, 6399 mSDsluCounter, 7113 mSDsCounter, 0 mSdLazyCounter, 6078 mSolverCounterSat, 3721 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6699 SdHoareTripleChecker+Valid, 9181 SdHoareTripleChecker+Invalid, 9799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3721 IncrementalHoareTripleChecker+Valid, 6078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-12-14 18:24:56,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6699 Valid, 9181 Invalid, 9799 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3721 Valid, 6078 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2021-12-14 18:24:56,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13799 states. [2021-12-14 18:24:56,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13799 to 11033. [2021-12-14 18:24:56,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11033 states, 7850 states have (on average 1.3653503184713376) internal successors, (10718), 8134 states have internal predecessors, (10718), 2525 states have call successors, (2525), 658 states have call predecessors, (2525), 657 states have return successors, (2544), 2392 states have call predecessors, (2544), 2524 states have call successors, (2544) [2021-12-14 18:24:56,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11033 states to 11033 states and 15787 transitions. [2021-12-14 18:24:56,746 INFO L78 Accepts]: Start accepts. Automaton has 11033 states and 15787 transitions. Word has length 230 [2021-12-14 18:24:56,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:24:56,747 INFO L470 AbstractCegarLoop]: Abstraction has 11033 states and 15787 transitions. [2021-12-14 18:24:56,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-14 18:24:56,748 INFO L276 IsEmpty]: Start isEmpty. Operand 11033 states and 15787 transitions. [2021-12-14 18:24:56,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-12-14 18:24:56,763 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:24:56,763 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:24:56,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 18:24:56,763 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:24:56,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:24:56,764 INFO L85 PathProgramCache]: Analyzing trace with hash 2042396900, now seen corresponding path program 1 times [2021-12-14 18:24:56,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:24:56,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834911953] [2021-12-14 18:24:56,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:24:56,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:24:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:24:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:57,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:24:57,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:24:57,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:24:57,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:24:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:57,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:24:57,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:24:57,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:57,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:24:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 18:24:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:57,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 18:24:57,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:57,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 18:24:57,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:57,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-14 18:24:57,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-14 18:24:57,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:57,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 18:24:57,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:57,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-14 18:24:57,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:24:57,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:24:57,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-14 18:24:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-14 18:24:57,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-14 18:24:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-14 18:24:57,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:24:57,269 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2021-12-14 18:24:57,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:24:57,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834911953] [2021-12-14 18:24:57,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834911953] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:24:57,270 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:24:57,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 18:24:57,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14714960] [2021-12-14 18:24:57,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:24:57,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 18:24:57,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:24:57,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 18:24:57,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-14 18:24:57,272 INFO L87 Difference]: Start difference. First operand 11033 states and 15787 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-14 18:25:03,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:25:03,445 INFO L93 Difference]: Finished difference Result 22865 states and 33271 transitions. [2021-12-14 18:25:03,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 18:25:03,446 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 234 [2021-12-14 18:25:03,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:25:03,527 INFO L225 Difference]: With dead ends: 22865 [2021-12-14 18:25:03,528 INFO L226 Difference]: Without dead ends: 13820 [2021-12-14 18:25:03,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2021-12-14 18:25:03,559 INFO L933 BasicCegarLoop]: 1733 mSDtfsCounter, 3965 mSDsluCounter, 5391 mSDsCounter, 0 mSdLazyCounter, 4299 mSolverCounterSat, 2260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4140 SdHoareTripleChecker+Valid, 7124 SdHoareTripleChecker+Invalid, 6559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2260 IncrementalHoareTripleChecker+Valid, 4299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-12-14 18:25:03,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4140 Valid, 7124 Invalid, 6559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2260 Valid, 4299 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2021-12-14 18:25:03,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13820 states. [2021-12-14 18:25:03,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13820 to 11049. [2021-12-14 18:25:04,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11049 states, 7866 states have (on average 1.3646071700991609) internal successors, (10734), 8146 states have internal predecessors, (10734), 2521 states have call successors, (2521), 662 states have call predecessors, (2521), 661 states have return successors, (2540), 2392 states have call predecessors, (2540), 2520 states have call successors, (2540) [2021-12-14 18:25:04,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11049 states to 11049 states and 15795 transitions. [2021-12-14 18:25:04,054 INFO L78 Accepts]: Start accepts. Automaton has 11049 states and 15795 transitions. Word has length 234 [2021-12-14 18:25:04,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:25:04,055 INFO L470 AbstractCegarLoop]: Abstraction has 11049 states and 15795 transitions. [2021-12-14 18:25:04,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-14 18:25:04,055 INFO L276 IsEmpty]: Start isEmpty. Operand 11049 states and 15795 transitions. [2021-12-14 18:25:04,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-12-14 18:25:04,068 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:25:04,069 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:25:04,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 18:25:04,069 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:25:04,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:25:04,070 INFO L85 PathProgramCache]: Analyzing trace with hash 438339210, now seen corresponding path program 1 times [2021-12-14 18:25:04,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:25:04,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461706158] [2021-12-14 18:25:04,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:25:04,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:25:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:25:04,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:04,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:25:04,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:04,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:25:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:04,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:04,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:25:04,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:25:04,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 18:25:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:04,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 18:25:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 18:25:04,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:04,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-14 18:25:04,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-14 18:25:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:04,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 18:25:04,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:04,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-14 18:25:04,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:25:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-14 18:25:04,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-14 18:25:04,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-14 18:25:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-14 18:25:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-14 18:25:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:25:04,650 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2021-12-14 18:25:04,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:25:04,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461706158] [2021-12-14 18:25:04,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461706158] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:25:04,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:25:04,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 18:25:04,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451161782] [2021-12-14 18:25:04,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:25:04,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 18:25:04,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:25:04,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 18:25:04,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-14 18:25:04,653 INFO L87 Difference]: Start difference. First operand 11049 states and 15795 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19)