./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.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 0991342cd9e67cbadb964d86a1516812eb3aa45e84d4674c09b8e10a19f475c1 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 17:38:25,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 17:38:25,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 17:38:25,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 17:38:25,750 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 17:38:25,751 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 17:38:25,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 17:38:25,753 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 17:38:25,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 17:38:25,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 17:38:25,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 17:38:25,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 17:38:25,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 17:38:25,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 17:38:25,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 17:38:25,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 17:38:25,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 17:38:25,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 17:38:25,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 17:38:25,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 17:38:25,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 17:38:25,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 17:38:25,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 17:38:25,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 17:38:25,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 17:38:25,768 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 17:38:25,768 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 17:38:25,769 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 17:38:25,769 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 17:38:25,770 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 17:38:25,770 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 17:38:25,771 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 17:38:25,772 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 17:38:25,772 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 17:38:25,773 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 17:38:25,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 17:38:25,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 17:38:25,774 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 17:38:25,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 17:38:25,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 17:38:25,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 17:38:25,776 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 17:38:25,798 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 17:38:25,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 17:38:25,800 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 17:38:25,800 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 17:38:25,801 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 17:38:25,801 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 17:38:25,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 17:38:25,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 17:38:25,802 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 17:38:25,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 17:38:25,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 17:38:25,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 17:38:25,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 17:38:25,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 17:38:25,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 17:38:25,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 17:38:25,803 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 17:38:25,803 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 17:38:25,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 17:38:25,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 17:38:25,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 17:38:25,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:38:25,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 17:38:25,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 17:38:25,804 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 17:38:25,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 17:38:25,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 17:38:25,805 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 17:38:25,805 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 17:38:25,805 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 17:38:25,805 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 17:38:25,805 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0991342cd9e67cbadb964d86a1516812eb3aa45e84d4674c09b8e10a19f475c1 [2021-12-14 17:38:26,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 17:38:26,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 17:38:26,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 17:38:26,024 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 17:38:26,024 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 17:38:26,025 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2021-12-14 17:38:26,066 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/859c8150c/70fce07e868145a39a41363819b8e8ec/FLAGfab87f487 [2021-12-14 17:38:26,726 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 17:38:26,726 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2021-12-14 17:38:26,767 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/859c8150c/70fce07e868145a39a41363819b8e8ec/FLAGfab87f487 [2021-12-14 17:38:27,100 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/859c8150c/70fce07e868145a39a41363819b8e8ec [2021-12-14 17:38:27,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 17:38:27,104 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 17:38:27,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 17:38:27,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 17:38:27,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 17:38:27,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:38:27" (1/1) ... [2021-12-14 17:38:27,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5582497f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:27, skipping insertion in model container [2021-12-14 17:38:27,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:38:27" (1/1) ... [2021-12-14 17:38:27,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 17:38:27,204 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 17:38:28,952 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i[339370,339383] [2021-12-14 17:38:29,073 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:38:29,102 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 17:38:29,414 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i[339370,339383] [2021-12-14 17:38:29,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:38:29,513 INFO L208 MainTranslator]: Completed translation [2021-12-14 17:38:29,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:29 WrapperNode [2021-12-14 17:38:29,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 17:38:29,516 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 17:38:29,516 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 17:38:29,516 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 17:38:29,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:29" (1/1) ... [2021-12-14 17:38:29,613 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:29" (1/1) ... [2021-12-14 17:38:29,765 INFO L137 Inliner]: procedures = 326, calls = 4469, calls flagged for inlining = 131, calls inlined = 121, statements flattened = 8803 [2021-12-14 17:38:29,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 17:38:29,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 17:38:29,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 17:38:29,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 17:38:29,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:29" (1/1) ... [2021-12-14 17:38:29,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:29" (1/1) ... [2021-12-14 17:38:29,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:29" (1/1) ... [2021-12-14 17:38:29,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:29" (1/1) ... [2021-12-14 17:38:30,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:29" (1/1) ... [2021-12-14 17:38:30,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:29" (1/1) ... [2021-12-14 17:38:30,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:29" (1/1) ... [2021-12-14 17:38:30,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 17:38:30,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 17:38:30,140 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 17:38:30,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 17:38:30,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:29" (1/1) ... [2021-12-14 17:38:30,147 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:38:30,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:38:30,177 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 17:38:30,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 17:38:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_ohci [2021-12-14 17:38:30,213 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_ohci [2021-12-14 17:38:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-14 17:38:30,213 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-14 17:38:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2021-12-14 17:38:30,213 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2021-12-14 17:38:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2021-12-14 17:38:30,213 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2021-12-14 17:38:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure start_ed_unlink [2021-12-14 17:38:30,213 INFO L138 BoogieDeclarations]: Found implementation of procedure start_ed_unlink [2021-12-14 17:38:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_status [2021-12-14 17:38:30,214 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_status [2021-12-14 17:38:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-12-14 17:38:30,214 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-12-14 17:38:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_suspend [2021-12-14 17:38:30,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_suspend [2021-12-14 17:38:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_alloc [2021-12-14 17:38:30,215 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_alloc [2021-12-14 17:38:30,215 INFO L130 BoogieDeclarations]: Found specification of procedure show_list [2021-12-14 17:38:30,215 INFO L138 BoogieDeclarations]: Found implementation of procedure show_list [2021-12-14 17:38:30,215 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_probe [2021-12-14 17:38:30,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_probe [2021-12-14 17:38:30,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 17:38:30,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 17:38:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-14 17:38:30,216 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-14 17:38:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpup [2021-12-14 17:38:30,216 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpup [2021-12-14 17:38:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure hcfs2string [2021-12-14 17:38:30,216 INFO L138 BoogieDeclarations]: Found implementation of procedure hcfs2string [2021-12-14 17:38:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_zfmicro [2021-12-14 17:38:30,216 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_zfmicro [2021-12-14 17:38:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure usb_disabled [2021-12-14 17:38:30,217 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_disabled [2021-12-14 17:38:30,217 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_status_data [2021-12-14 17:38:30,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_status_data [2021-12-14 17:38:30,217 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_reset [2021-12-14 17:38:30,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_reset [2021-12-14 17:38:30,217 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_shutdown [2021-12-14 17:38:30,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_shutdown [2021-12-14 17:38:30,218 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 17:38:30,218 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 17:38:30,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 17:38:30,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 17:38:30,218 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_intr_mask [2021-12-14 17:38:30,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_intr_mask [2021-12-14 17:38:30,218 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_buffer [2021-12-14 17:38:30,218 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_buffer [2021-12-14 17:38:30,218 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_writel [2021-12-14 17:38:30,219 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_writel [2021-12-14 17:38:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-14 17:38:30,219 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-14 17:38:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 17:38:30,219 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 17:38:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hwPSWp [2021-12-14 17:38:30,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hwPSWp [2021-12-14 17:38:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_resume [2021-12-14 17:38:30,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_resume [2021-12-14 17:38:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_suspend [2021-12-14 17:38:30,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_suspend [2021-12-14 17:38:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure debug_output [2021-12-14 17:38:30,279 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_output [2021-12-14 17:38:30,279 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-14 17:38:30,279 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-14 17:38:30,279 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-14 17:38:30,279 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-14 17:38:30,279 INFO L130 BoogieDeclarations]: Found specification of procedure ed_schedule [2021-12-14 17:38:30,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_schedule [2021-12-14 17:38:30,279 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hcd_init [2021-12-14 17:38:30,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hcd_init [2021-12-14 17:38:30,280 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_roothub [2021-12-14 17:38:30,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_roothub [2021-12-14 17:38:30,280 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2021-12-14 17:38:30,280 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2021-12-14 17:38:30,280 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-14 17:38:30,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-14 17:38:30,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 17:38:30,280 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_stop [2021-12-14 17:38:30,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_stop [2021-12-14 17:38:30,280 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-14 17:38:30,280 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-14 17:38:30,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 17:38:30,280 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2021-12-14 17:38:30,280 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2021-12-14 17:38:30,280 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_remove [2021-12-14 17:38:30,280 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_remove [2021-12-14 17:38:30,280 INFO L130 BoogieDeclarations]: Found specification of procedure check_ed [2021-12-14 17:38:30,280 INFO L138 BoogieDeclarations]: Found implementation of procedure check_ed [2021-12-14 17:38:30,280 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_restart [2021-12-14 17:38:30,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_restart [2021-12-14 17:38:30,281 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_nec [2021-12-14 17:38:30,281 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_nec [2021-12-14 17:38:30,281 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-14 17:38:30,281 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-14 17:38:30,281 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2021-12-14 17:38:30,281 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2021-12-14 17:38:30,281 INFO L130 BoogieDeclarations]: Found specification of procedure td_free [2021-12-14 17:38:30,281 INFO L138 BoogieDeclarations]: Found implementation of procedure td_free [2021-12-14 17:38:30,281 INFO L130 BoogieDeclarations]: Found specification of procedure broken_suspend [2021-12-14 17:38:30,281 INFO L138 BoogieDeclarations]: Found implementation of procedure broken_suspend [2021-12-14 17:38:30,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 17:38:30,281 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_resume [2021-12-14 17:38:30,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_resume [2021-12-14 17:38:30,281 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_platform_shutdown [2021-12-14 17:38:30,281 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_platform_shutdown [2021-12-14 17:38:30,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 17:38:30,281 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_portstatus [2021-12-14 17:38:30,281 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_portstatus [2021-12-14 17:38:30,282 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-12-14 17:38:30,282 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-12-14 17:38:30,282 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hc_died [2021-12-14 17:38:30,282 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hc_died [2021-12-14 17:38:30,282 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_remove [2021-12-14 17:38:30,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_remove [2021-12-14 17:38:30,282 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-12-14 17:38:30,282 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-12-14 17:38:30,282 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-14 17:38:30,282 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-14 17:38:30,282 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2021-12-14 17:38:30,282 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2021-12-14 17:38:30,282 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-14 17:38:30,282 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-14 17:38:30,282 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-14 17:38:30,282 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-14 17:38:30,282 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-14 17:38:30,282 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-14 17:38:30,282 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_resume [2021-12-14 17:38:30,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_resume [2021-12-14 17:38:30,283 INFO L130 BoogieDeclarations]: Found specification of procedure ed_free [2021-12-14 17:38:30,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_free [2021-12-14 17:38:30,283 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-14 17:38:30,283 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-14 17:38:30,283 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2021-12-14 17:38:30,283 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2021-12-14 17:38:30,283 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_start [2021-12-14 17:38:30,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_start [2021-12-14 17:38:30,283 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump [2021-12-14 17:38:30,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump [2021-12-14 17:38:30,283 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_frame_no [2021-12-14 17:38:30,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_frame_no [2021-12-14 17:38:30,283 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-14 17:38:30,283 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-14 17:38:30,283 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-14 17:38:30,283 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-14 17:38:30,283 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-14 17:38:30,283 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-14 17:38:30,283 INFO L130 BoogieDeclarations]: Found specification of procedure sb800_prefetch [2021-12-14 17:38:30,283 INFO L138 BoogieDeclarations]: Found implementation of procedure sb800_prefetch [2021-12-14 17:38:30,284 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_control [2021-12-14 17:38:30,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_control [2021-12-14 17:38:30,284 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2021-12-14 17:38:30,284 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2021-12-14 17:38:30,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 17:38:30,284 INFO L130 BoogieDeclarations]: Found specification of procedure finish_urb [2021-12-14 17:38:30,284 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_urb [2021-12-14 17:38:30,284 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_suspend [2021-12-14 17:38:30,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_suspend [2021-12-14 17:38:30,284 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_a [2021-12-14 17:38:30,284 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_a [2021-12-14 17:38:30,284 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_irq [2021-12-14 17:38:30,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_irq [2021-12-14 17:38:30,284 INFO L130 BoogieDeclarations]: Found specification of procedure rh_state_string [2021-12-14 17:38:30,284 INFO L138 BoogieDeclarations]: Found implementation of procedure rh_state_string [2021-12-14 17:38:30,284 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_b [2021-12-14 17:38:30,284 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_b [2021-12-14 17:38:30,284 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_enqueue [2021-12-14 17:38:30,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_enqueue [2021-12-14 17:38:30,284 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_start_port_reset [2021-12-14 17:38:30,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_start_port_reset [2021-12-14 17:38:30,285 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_to_hcd [2021-12-14 17:38:30,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_to_hcd [2021-12-14 17:38:30,285 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_start [2021-12-14 17:38:30,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_start [2021-12-14 17:38:30,285 INFO L130 BoogieDeclarations]: Found specification of procedure td_alloc [2021-12-14 17:38:30,285 INFO L138 BoogieDeclarations]: Found implementation of procedure td_alloc [2021-12-14 17:38:30,285 INFO L130 BoogieDeclarations]: Found specification of procedure find_head [2021-12-14 17:38:30,285 INFO L138 BoogieDeclarations]: Found implementation of procedure find_head [2021-12-14 17:38:30,285 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 17:38:30,285 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 17:38:30,285 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_run [2021-12-14 17:38:30,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_run [2021-12-14 17:38:30,285 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2021-12-14 17:38:30,285 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2021-12-14 17:38:30,285 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_endpoint_disable [2021-12-14 17:38:30,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_endpoint_disable [2021-12-14 17:38:30,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 17:38:30,285 INFO L130 BoogieDeclarations]: Found specification of procedure takeback_td [2021-12-14 17:38:30,286 INFO L138 BoogieDeclarations]: Found implementation of procedure takeback_td [2021-12-14 17:38:30,286 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdprefetch [2021-12-14 17:38:30,286 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdprefetch [2021-12-14 17:38:30,286 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-14 17:38:30,286 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-14 17:38:30,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 17:38:30,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 17:38:30,286 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_readl [2021-12-14 17:38:30,286 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_readl [2021-12-14 17:38:30,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 17:38:30,286 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2021-12-14 17:38:30,286 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2021-12-14 17:38:30,286 INFO L130 BoogieDeclarations]: Found specification of procedure dl_done_list [2021-12-14 17:38:30,286 INFO L138 BoogieDeclarations]: Found implementation of procedure dl_done_list [2021-12-14 17:38:30,286 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_poll_rh_status [2021-12-14 17:38:30,286 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_poll_rh_status [2021-12-14 17:38:30,286 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-14 17:38:30,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-14 17:38:30,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 17:38:30,287 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_reinit [2021-12-14 17:38:30,287 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_reinit [2021-12-14 17:38:30,287 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2021-12-14 17:38:30,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2021-12-14 17:38:30,287 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-14 17:38:30,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-14 17:38:30,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 17:38:30,288 INFO L130 BoogieDeclarations]: Found specification of procedure td_done [2021-12-14 17:38:30,288 INFO L138 BoogieDeclarations]: Found implementation of procedure td_done [2021-12-14 17:38:30,288 INFO L130 BoogieDeclarations]: Found specification of procedure td_fill [2021-12-14 17:38:30,288 INFO L138 BoogieDeclarations]: Found implementation of procedure td_fill [2021-12-14 17:38:30,289 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_dequeue [2021-12-14 17:38:30,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_dequeue [2021-12-14 17:38:30,289 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 17:38:30,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 17:38:30,289 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_init [2021-12-14 17:38:30,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_init [2021-12-14 17:38:30,290 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-14 17:38:30,290 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-14 17:38:30,290 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc16 [2021-12-14 17:38:30,290 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc16 [2021-12-14 17:38:30,291 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-14 17:38:30,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-14 17:38:30,291 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdiso [2021-12-14 17:38:30,291 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdiso [2021-12-14 17:38:30,291 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2021-12-14 17:38:30,291 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2021-12-14 17:38:30,292 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-14 17:38:30,292 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-14 17:38:30,292 INFO L130 BoogieDeclarations]: Found specification of procedure ed_deschedule [2021-12-14 17:38:30,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_deschedule [2021-12-14 17:38:30,292 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_resume_root_hub [2021-12-14 17:38:30,292 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_resume_root_hub [2021-12-14 17:38:30,292 INFO L130 BoogieDeclarations]: Found specification of procedure urb_free_priv [2021-12-14 17:38:30,293 INFO L138 BoogieDeclarations]: Found implementation of procedure urb_free_priv [2021-12-14 17:38:30,293 INFO L130 BoogieDeclarations]: Found specification of procedure finish_unlinks [2021-12-14 17:38:30,293 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_unlinks [2021-12-14 17:38:30,293 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpu [2021-12-14 17:38:30,293 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpu [2021-12-14 17:38:30,293 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2021-12-14 17:38:30,294 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2021-12-14 17:38:30,295 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_status [2021-12-14 17:38:30,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_status [2021-12-14 17:38:30,296 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_print_eds [2021-12-14 17:38:30,296 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_print_eds [2021-12-14 17:38:30,297 INFO L130 BoogieDeclarations]: Found specification of procedure debug_close [2021-12-14 17:38:30,297 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_close [2021-12-14 17:38:30,297 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_get_frame [2021-12-14 17:38:30,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_get_frame [2021-12-14 17:38:30,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2021-12-14 17:38:30,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2021-12-14 17:38:30,301 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 17:38:30,301 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 17:38:30,301 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-14 17:38:30,301 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-14 17:38:30,302 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc32 [2021-12-14 17:38:30,302 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc32 [2021-12-14 17:38:30,302 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-14 17:38:30,302 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-14 17:38:30,302 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_usb_reset [2021-12-14 17:38:30,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_usb_reset [2021-12-14 17:38:30,302 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_resume [2021-12-14 17:38:30,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_resume [2021-12-14 17:38:30,302 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-12-14 17:38:30,302 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-12-14 17:38:30,303 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-14 17:38:30,303 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-14 17:38:30,303 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_suspend [2021-12-14 17:38:30,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_suspend [2021-12-14 17:38:30,303 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_reset [2021-12-14 17:38:30,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_reset [2021-12-14 17:38:30,303 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_shutdown [2021-12-14 17:38:30,303 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_shutdown [2021-12-14 17:38:30,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 17:38:30,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 17:38:30,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 17:38:30,304 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2021-12-14 17:38:30,304 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2021-12-14 17:38:31,150 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 17:38:31,153 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 17:38:36,376 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 17:38:36,398 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 17:38:36,398 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-14 17:38:36,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:38:36 BoogieIcfgContainer [2021-12-14 17:38:36,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 17:38:36,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 17:38:36,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 17:38:36,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 17:38:36,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:38:27" (1/3) ... [2021-12-14 17:38:36,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73151a0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:38:36, skipping insertion in model container [2021-12-14 17:38:36,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:29" (2/3) ... [2021-12-14 17:38:36,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73151a0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:38:36, skipping insertion in model container [2021-12-14 17:38:36,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:38:36" (3/3) ... [2021-12-14 17:38:36,410 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2021-12-14 17:38:36,415 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 17:38:36,415 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 17:38:36,453 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 17:38:36,458 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 17:38:36,458 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 17:38:36,507 INFO L276 IsEmpty]: Start isEmpty. Operand has 3313 states, 2331 states have (on average 1.3951093951093951) internal successors, (3252), 2402 states have internal predecessors, (3252), 848 states have call successors, (848), 136 states have call predecessors, (848), 136 states have return successors, (848), 839 states have call predecessors, (848), 848 states have call successors, (848) [2021-12-14 17:38:36,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-14 17:38:36,511 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:38:36,512 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:38:36,512 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:38:36,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:38:36,516 INFO L85 PathProgramCache]: Analyzing trace with hash -825410595, now seen corresponding path program 1 times [2021-12-14 17:38:36,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:38:36,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858184503] [2021-12-14 17:38:36,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:38:36,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:38:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:38:36,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:38:36,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:38:36,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858184503] [2021-12-14 17:38:36,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858184503] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:38:36,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:38:36,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 17:38:36,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770503466] [2021-12-14 17:38:36,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:38:36,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 17:38:36,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:38:36,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 17:38:36,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:38:36,958 INFO L87 Difference]: Start difference. First operand has 3313 states, 2331 states have (on average 1.3951093951093951) internal successors, (3252), 2402 states have internal predecessors, (3252), 848 states have call successors, (848), 136 states have call predecessors, (848), 136 states have return successors, (848), 839 states have call predecessors, (848), 848 states have call successors, (848) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 17:38:37,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:38:37,371 INFO L93 Difference]: Finished difference Result 9883 states and 15013 transitions. [2021-12-14 17:38:37,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 17:38:37,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-12-14 17:38:37,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:38:37,508 INFO L225 Difference]: With dead ends: 9883 [2021-12-14 17:38:37,523 INFO L226 Difference]: Without dead ends: 6563 [2021-12-14 17:38:37,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:38:37,547 INFO L933 BasicCegarLoop]: 7168 mSDtfsCounter, 4872 mSDsluCounter, 4897 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4872 SdHoareTripleChecker+Valid, 12065 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 17:38:37,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4872 Valid, 12065 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 17:38:37,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6563 states. [2021-12-14 17:38:37,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6563 to 6549. [2021-12-14 17:38:37,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6549 states, 4600 states have (on average 1.393695652173913) internal successors, (6411), 4734 states have internal predecessors, (6411), 1678 states have call successors, (1678), 271 states have call predecessors, (1678), 270 states have return successors, (1672), 1653 states have call predecessors, (1672), 1672 states have call successors, (1672) [2021-12-14 17:38:37,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6549 states to 6549 states and 9761 transitions. [2021-12-14 17:38:37,835 INFO L78 Accepts]: Start accepts. Automaton has 6549 states and 9761 transitions. Word has length 14 [2021-12-14 17:38:37,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:38:37,836 INFO L470 AbstractCegarLoop]: Abstraction has 6549 states and 9761 transitions. [2021-12-14 17:38:37,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 17:38:37,836 INFO L276 IsEmpty]: Start isEmpty. Operand 6549 states and 9761 transitions. [2021-12-14 17:38:37,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-14 17:38:37,838 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:38:37,839 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:38:37,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 17:38:37,839 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:38:37,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:38:37,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1327585593, now seen corresponding path program 1 times [2021-12-14 17:38:37,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:38:37,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778444590] [2021-12-14 17:38:37,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:38:37,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:38:37,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:38:38,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:38:38,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:38:38,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778444590] [2021-12-14 17:38:38,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778444590] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:38:38,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:38:38,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 17:38:38,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924592200] [2021-12-14 17:38:38,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:38:38,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 17:38:38,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:38:38,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 17:38:38,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:38:38,078 INFO L87 Difference]: Start difference. First operand 6549 states and 9761 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 17:38:38,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:38:38,467 INFO L93 Difference]: Finished difference Result 19597 states and 29203 transitions. [2021-12-14 17:38:38,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 17:38:38,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-12-14 17:38:38,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:38:38,649 INFO L225 Difference]: With dead ends: 19597 [2021-12-14 17:38:38,650 INFO L226 Difference]: Without dead ends: 13051 [2021-12-14 17:38:38,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:38:38,682 INFO L933 BasicCegarLoop]: 6326 mSDtfsCounter, 4864 mSDsluCounter, 4891 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4864 SdHoareTripleChecker+Valid, 11217 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 17:38:38,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4864 Valid, 11217 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 17:38:38,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13051 states. [2021-12-14 17:38:39,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13051 to 13037. [2021-12-14 17:38:39,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13037 states, 9154 states have (on average 1.392724492025344) internal successors, (12749), 9418 states have internal predecessors, (12749), 3342 states have call successors, (3342), 541 states have call predecessors, (3342), 540 states have return successors, (3336), 3297 states have call predecessors, (3336), 3336 states have call successors, (3336) [2021-12-14 17:38:39,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13037 states to 13037 states and 19427 transitions. [2021-12-14 17:38:39,164 INFO L78 Accepts]: Start accepts. Automaton has 13037 states and 19427 transitions. Word has length 16 [2021-12-14 17:38:39,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:38:39,164 INFO L470 AbstractCegarLoop]: Abstraction has 13037 states and 19427 transitions. [2021-12-14 17:38:39,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 17:38:39,165 INFO L276 IsEmpty]: Start isEmpty. Operand 13037 states and 19427 transitions. [2021-12-14 17:38:39,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-14 17:38:39,167 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:38:39,167 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:38:39,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 17:38:39,167 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:38:39,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:38:39,169 INFO L85 PathProgramCache]: Analyzing trace with hash -269818897, now seen corresponding path program 1 times [2021-12-14 17:38:39,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:38:39,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336087868] [2021-12-14 17:38:39,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:38:39,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:38:39,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:38:39,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:38:39,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:38:39,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336087868] [2021-12-14 17:38:39,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336087868] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:38:39,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:38:39,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 17:38:39,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263220179] [2021-12-14 17:38:39,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:38:39,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 17:38:39,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:38:39,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 17:38:39,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:38:39,408 INFO L87 Difference]: Start difference. First operand 13037 states and 19427 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 17:38:40,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:38:40,220 INFO L93 Difference]: Finished difference Result 38959 states and 58058 transitions. [2021-12-14 17:38:40,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 17:38:40,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-12-14 17:38:40,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:38:40,432 INFO L225 Difference]: With dead ends: 38959 [2021-12-14 17:38:40,433 INFO L226 Difference]: Without dead ends: 25925 [2021-12-14 17:38:40,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:38:40,521 INFO L933 BasicCegarLoop]: 6747 mSDtfsCounter, 4862 mSDsluCounter, 4891 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4862 SdHoareTripleChecker+Valid, 11638 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-14 17:38:40,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4862 Valid, 11638 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-14 17:38:40,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25925 states. [2021-12-14 17:38:41,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25925 to 25911. [2021-12-14 17:38:41,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25911 states, 18183 states have (on average 1.3920695154814937) internal successors, (25312), 18706 states have internal predecessors, (25312), 6654 states have call successors, (6654), 1074 states have call predecessors, (6654), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2021-12-14 17:38:41,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25911 states to 25911 states and 38614 transitions. [2021-12-14 17:38:41,667 INFO L78 Accepts]: Start accepts. Automaton has 25911 states and 38614 transitions. Word has length 18 [2021-12-14 17:38:41,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:38:41,668 INFO L470 AbstractCegarLoop]: Abstraction has 25911 states and 38614 transitions. [2021-12-14 17:38:41,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 17:38:41,668 INFO L276 IsEmpty]: Start isEmpty. Operand 25911 states and 38614 transitions. [2021-12-14 17:38:41,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-14 17:38:41,673 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:38:41,673 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:38:41,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 17:38:41,674 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:38:41,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:38:41,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1935095309, now seen corresponding path program 1 times [2021-12-14 17:38:41,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:38:41,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225572848] [2021-12-14 17:38:41,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:38:41,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:38:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:38:41,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 17:38:41,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:38:41,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:38:41,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:38:41,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225572848] [2021-12-14 17:38:41,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225572848] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:38:41,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:38:41,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:38:41,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855052457] [2021-12-14 17:38:41,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:38:41,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:38:41,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:38:41,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:38:41,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:38:41,898 INFO L87 Difference]: Start difference. First operand 25911 states and 38614 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 17:38:42,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:38:42,669 INFO L93 Difference]: Finished difference Result 51854 states and 77278 transitions. [2021-12-14 17:38:42,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:38:42,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-12-14 17:38:42,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:38:42,821 INFO L225 Difference]: With dead ends: 51854 [2021-12-14 17:38:42,821 INFO L226 Difference]: Without dead ends: 25946 [2021-12-14 17:38:42,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:38:42,937 INFO L933 BasicCegarLoop]: 4906 mSDtfsCounter, 22 mSDsluCounter, 9807 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 14713 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 17:38:42,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 14713 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 17:38:42,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25946 states. [2021-12-14 17:38:43,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25946 to 25914. [2021-12-14 17:38:43,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25914 states, 18186 states have (on average 1.392004838887056) internal successors, (25315), 18709 states have internal predecessors, (25315), 6654 states have call successors, (6654), 1074 states have call predecessors, (6654), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2021-12-14 17:38:43,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25914 states to 25914 states and 38617 transitions. [2021-12-14 17:38:43,966 INFO L78 Accepts]: Start accepts. Automaton has 25914 states and 38617 transitions. Word has length 29 [2021-12-14 17:38:43,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:38:43,967 INFO L470 AbstractCegarLoop]: Abstraction has 25914 states and 38617 transitions. [2021-12-14 17:38:43,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 17:38:43,967 INFO L276 IsEmpty]: Start isEmpty. Operand 25914 states and 38617 transitions. [2021-12-14 17:38:43,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-14 17:38:43,971 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:38:43,971 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:38:43,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 17:38:43,971 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:38:43,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:38:43,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1992353611, now seen corresponding path program 1 times [2021-12-14 17:38:43,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:38:43,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192429583] [2021-12-14 17:38:43,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:38:43,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:38:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:38:44,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 17:38:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:38:44,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:38:44,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:38:44,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192429583] [2021-12-14 17:38:44,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192429583] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:38:44,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:38:44,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 17:38:44,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38344823] [2021-12-14 17:38:44,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:38:44,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 17:38:44,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:38:44,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 17:38:44,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:38:44,193 INFO L87 Difference]: Start difference. First operand 25914 states and 38617 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 17:38:44,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:38:44,761 INFO L93 Difference]: Finished difference Result 25916 states and 38618 transitions. [2021-12-14 17:38:44,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 17:38:44,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-12-14 17:38:44,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:38:44,874 INFO L225 Difference]: With dead ends: 25916 [2021-12-14 17:38:44,875 INFO L226 Difference]: Without dead ends: 25913 [2021-12-14 17:38:44,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:38:44,889 INFO L933 BasicCegarLoop]: 4906 mSDtfsCounter, 4884 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4884 SdHoareTripleChecker+Valid, 4906 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 17:38:44,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4884 Valid, 4906 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 17:38:44,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25913 states. [2021-12-14 17:38:45,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25913 to 25913. [2021-12-14 17:38:45,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25913 states, 18186 states have (on average 1.391949851534147) internal successors, (25314), 18708 states have internal predecessors, (25314), 6653 states have call successors, (6653), 1074 states have call predecessors, (6653), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2021-12-14 17:38:45,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25913 states to 25913 states and 38615 transitions. [2021-12-14 17:38:45,734 INFO L78 Accepts]: Start accepts. Automaton has 25913 states and 38615 transitions. Word has length 29 [2021-12-14 17:38:45,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:38:45,735 INFO L470 AbstractCegarLoop]: Abstraction has 25913 states and 38615 transitions. [2021-12-14 17:38:45,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 17:38:45,735 INFO L276 IsEmpty]: Start isEmpty. Operand 25913 states and 38615 transitions. [2021-12-14 17:38:45,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-14 17:38:45,737 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:38:45,737 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:38:45,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 17:38:45,738 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:38:45,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:38:45,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1631933668, now seen corresponding path program 1 times [2021-12-14 17:38:45,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:38:45,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422955603] [2021-12-14 17:38:45,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:38:45,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:38:45,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:38:45,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 17:38:45,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:38:45,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:38:45,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:38:45,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422955603] [2021-12-14 17:38:45,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422955603] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:38:45,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:38:45,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 17:38:45,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046952746] [2021-12-14 17:38:45,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:38:45,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 17:38:45,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:38:45,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 17:38:45,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:38:45,915 INFO L87 Difference]: Start difference. First operand 25913 states and 38615 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 17:38:46,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:38:46,498 INFO L93 Difference]: Finished difference Result 25915 states and 38616 transitions. [2021-12-14 17:38:46,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 17:38:46,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-12-14 17:38:46,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:38:46,644 INFO L225 Difference]: With dead ends: 25915 [2021-12-14 17:38:46,645 INFO L226 Difference]: Without dead ends: 25912 [2021-12-14 17:38:46,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:38:46,760 INFO L933 BasicCegarLoop]: 4904 mSDtfsCounter, 4881 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4881 SdHoareTripleChecker+Valid, 4904 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 17:38:46,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4881 Valid, 4904 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 17:38:46,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25912 states. [2021-12-14 17:38:47,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25912 to 25912. [2021-12-14 17:38:47,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25912 states, 18186 states have (on average 1.3918948641812383) internal successors, (25313), 18707 states have internal predecessors, (25313), 6652 states have call successors, (6652), 1074 states have call predecessors, (6652), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2021-12-14 17:38:47,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25912 states to 25912 states and 38613 transitions. [2021-12-14 17:38:47,752 INFO L78 Accepts]: Start accepts. Automaton has 25912 states and 38613 transitions. Word has length 30 [2021-12-14 17:38:47,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:38:47,752 INFO L470 AbstractCegarLoop]: Abstraction has 25912 states and 38613 transitions. [2021-12-14 17:38:47,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 17:38:47,753 INFO L276 IsEmpty]: Start isEmpty. Operand 25912 states and 38613 transitions. [2021-12-14 17:38:47,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-14 17:38:47,757 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:38:47,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:38:47,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 17:38:47,758 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:38:47,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:38:47,759 INFO L85 PathProgramCache]: Analyzing trace with hash -951145106, now seen corresponding path program 1 times [2021-12-14 17:38:47,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:38:47,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17445228] [2021-12-14 17:38:47,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:38:47,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:38:48,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:38:48,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 17:38:48,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:38:48,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:38:48,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:38:48,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17445228] [2021-12-14 17:38:48,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17445228] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:38:48,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:38:48,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 17:38:48,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725429616] [2021-12-14 17:38:48,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:38:48,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 17:38:48,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:38:48,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 17:38:48,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:38:48,192 INFO L87 Difference]: Start difference. First operand 25912 states and 38613 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 17:38:48,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:38:48,969 INFO L93 Difference]: Finished difference Result 40287 states and 59265 transitions. [2021-12-14 17:38:48,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 17:38:48,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-12-14 17:38:48,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:38:49,155 INFO L225 Difference]: With dead ends: 40287 [2021-12-14 17:38:49,155 INFO L226 Difference]: Without dead ends: 40283 [2021-12-14 17:38:49,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:38:49,175 INFO L933 BasicCegarLoop]: 5455 mSDtfsCounter, 4844 mSDsluCounter, 2979 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4844 SdHoareTripleChecker+Valid, 8434 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 17:38:49,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4844 Valid, 8434 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 17:38:49,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40283 states. [2021-12-14 17:38:50,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40283 to 40281. [2021-12-14 17:38:50,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40281 states, 28147 states have (on average 1.3720467545386719) internal successors, (38619), 28925 states have internal predecessors, (38619), 10318 states have call successors, (10318), 1816 states have call predecessors, (10318), 1815 states have return successors, (10316), 10202 states have call predecessors, (10316), 10316 states have call successors, (10316) [2021-12-14 17:38:50,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40281 states to 40281 states and 59253 transitions. [2021-12-14 17:38:50,637 INFO L78 Accepts]: Start accepts. Automaton has 40281 states and 59253 transitions. Word has length 31 [2021-12-14 17:38:50,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:38:50,637 INFO L470 AbstractCegarLoop]: Abstraction has 40281 states and 59253 transitions. [2021-12-14 17:38:50,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 17:38:50,638 INFO L276 IsEmpty]: Start isEmpty. Operand 40281 states and 59253 transitions. [2021-12-14 17:38:50,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-14 17:38:50,640 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:38:50,641 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:38:50,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 17:38:50,641 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:38:50,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:38:50,641 INFO L85 PathProgramCache]: Analyzing trace with hash 577796391, now seen corresponding path program 1 times [2021-12-14 17:38:50,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:38:50,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212424378] [2021-12-14 17:38:50,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:38:50,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:38:50,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:38:50,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 17:38:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:38:50,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:38:50,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:38:50,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212424378] [2021-12-14 17:38:50,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212424378] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:38:50,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:38:50,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 17:38:50,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550758981] [2021-12-14 17:38:50,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:38:50,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 17:38:50,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:38:50,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 17:38:50,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:38:50,854 INFO L87 Difference]: Start difference. First operand 40281 states and 59253 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 17:38:51,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:38:51,725 INFO L93 Difference]: Finished difference Result 40283 states and 59254 transitions. [2021-12-14 17:38:51,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 17:38:51,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-12-14 17:38:51,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:38:52,079 INFO L225 Difference]: With dead ends: 40283 [2021-12-14 17:38:52,079 INFO L226 Difference]: Without dead ends: 40191 [2021-12-14 17:38:52,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:38:52,104 INFO L933 BasicCegarLoop]: 4899 mSDtfsCounter, 4873 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4873 SdHoareTripleChecker+Valid, 4899 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 17:38:52,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4873 Valid, 4899 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 17:38:52,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40191 states. [2021-12-14 17:38:53,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40191 to 40191. [2021-12-14 17:38:53,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40191 states, 28098 states have (on average 1.3718414122001565) internal successors, (38546), 28868 states have internal predecessors, (38546), 10285 states have call successors, (10285), 1808 states have call predecessors, (10285), 1807 states have return successors, (10284), 10177 states have call predecessors, (10284), 10284 states have call successors, (10284) [2021-12-14 17:38:53,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40191 states to 40191 states and 59115 transitions. [2021-12-14 17:38:53,387 INFO L78 Accepts]: Start accepts. Automaton has 40191 states and 59115 transitions. Word has length 32 [2021-12-14 17:38:53,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:38:53,387 INFO L470 AbstractCegarLoop]: Abstraction has 40191 states and 59115 transitions. [2021-12-14 17:38:53,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 17:38:53,387 INFO L276 IsEmpty]: Start isEmpty. Operand 40191 states and 59115 transitions. [2021-12-14 17:38:53,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-14 17:38:53,406 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:38:53,406 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:38:53,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-14 17:38:53,407 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:38:53,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:38:53,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1062285101, now seen corresponding path program 1 times [2021-12-14 17:38:53,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:38:53,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277279703] [2021-12-14 17:38:53,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:38:53,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:38:53,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:38:53,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 17:38:53,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:38:53,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-14 17:38:53,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:38:53,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-14 17:38:53,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:38:53,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:38:53,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:38:53,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:38:53,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:38:53,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:38:53,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:38:53,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-14 17:38:53,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:38:53,665 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:38:53,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:38:53,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277279703] [2021-12-14 17:38:53,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277279703] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:38:53,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:38:53,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:38:53,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849251381] [2021-12-14 17:38:53,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:38:53,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:38:53,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:38:53,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:38:53,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:38:53,668 INFO L87 Difference]: Start difference. First operand 40191 states and 59115 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-14 17:39:00,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:39:00,745 INFO L93 Difference]: Finished difference Result 108621 states and 161333 transitions. [2021-12-14 17:39:00,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:39:00,746 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 75 [2021-12-14 17:39:00,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:39:01,331 INFO L225 Difference]: With dead ends: 108621 [2021-12-14 17:39:01,331 INFO L226 Difference]: Without dead ends: 68433 [2021-12-14 17:39:01,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:39:01,488 INFO L933 BasicCegarLoop]: 9321 mSDtfsCounter, 5727 mSDsluCounter, 9205 mSDsCounter, 0 mSdLazyCounter, 2856 mSolverCounterSat, 1858 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6550 SdHoareTripleChecker+Valid, 18526 SdHoareTripleChecker+Invalid, 4714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1858 IncrementalHoareTripleChecker+Valid, 2856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-12-14 17:39:01,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6550 Valid, 18526 Invalid, 4714 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1858 Valid, 2856 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2021-12-14 17:39:01,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68433 states. [2021-12-14 17:39:03,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68433 to 59224. [2021-12-14 17:39:03,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59224 states, 41416 states have (on average 1.372416457407765) internal successors, (56840), 42552 states have internal predecessors, (56840), 15153 states have call successors, (15153), 2655 states have call predecessors, (15153), 2654 states have return successors, (15152), 14994 states have call predecessors, (15152), 15152 states have call successors, (15152) [2021-12-14 17:39:03,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59224 states to 59224 states and 87145 transitions. [2021-12-14 17:39:03,973 INFO L78 Accepts]: Start accepts. Automaton has 59224 states and 87145 transitions. Word has length 75 [2021-12-14 17:39:03,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:39:03,975 INFO L470 AbstractCegarLoop]: Abstraction has 59224 states and 87145 transitions. [2021-12-14 17:39:03,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-14 17:39:03,975 INFO L276 IsEmpty]: Start isEmpty. Operand 59224 states and 87145 transitions. [2021-12-14 17:39:03,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-14 17:39:03,991 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:39:03,991 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:39:03,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-14 17:39:03,991 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:39:03,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:39:03,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1311107985, now seen corresponding path program 1 times [2021-12-14 17:39:03,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:39:03,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878957343] [2021-12-14 17:39:03,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:39:03,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:39:04,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:04,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 17:39:04,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:04,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-14 17:39:04,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:04,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-14 17:39:04,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:04,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:39:04,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:04,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:39:04,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:04,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:39:04,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:04,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-14 17:39:04,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:04,240 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:39:04,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:39:04,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878957343] [2021-12-14 17:39:04,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878957343] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:39:04,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:39:04,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:39:04,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304033887] [2021-12-14 17:39:04,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:39:04,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:39:04,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:39:04,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:39:04,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:39:04,242 INFO L87 Difference]: Start difference. First operand 59224 states and 87145 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-14 17:39:11,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:39:11,510 INFO L93 Difference]: Finished difference Result 159432 states and 236929 transitions. [2021-12-14 17:39:11,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:39:11,510 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 77 [2021-12-14 17:39:11,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:39:12,181 INFO L225 Difference]: With dead ends: 159432 [2021-12-14 17:39:12,182 INFO L226 Difference]: Without dead ends: 100211 [2021-12-14 17:39:12,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:39:12,451 INFO L933 BasicCegarLoop]: 9362 mSDtfsCounter, 5696 mSDsluCounter, 9221 mSDsCounter, 0 mSdLazyCounter, 2856 mSolverCounterSat, 1850 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6517 SdHoareTripleChecker+Valid, 18583 SdHoareTripleChecker+Invalid, 4706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1850 IncrementalHoareTripleChecker+Valid, 2856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-12-14 17:39:12,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6517 Valid, 18583 Invalid, 4706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1850 Valid, 2856 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-12-14 17:39:12,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100211 states. [2021-12-14 17:39:15,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100211 to 86716. [2021-12-14 17:39:15,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86716 states, 60662 states have (on average 1.3732484916422143) internal successors, (83304), 62328 states have internal predecessors, (83304), 22185 states have call successors, (22185), 3869 states have call predecessors, (22185), 3868 states have return successors, (22184), 21952 states have call predecessors, (22184), 22184 states have call successors, (22184) [2021-12-14 17:39:16,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86716 states to 86716 states and 127673 transitions. [2021-12-14 17:39:16,164 INFO L78 Accepts]: Start accepts. Automaton has 86716 states and 127673 transitions. Word has length 77 [2021-12-14 17:39:16,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:39:16,165 INFO L470 AbstractCegarLoop]: Abstraction has 86716 states and 127673 transitions. [2021-12-14 17:39:16,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-14 17:39:16,165 INFO L276 IsEmpty]: Start isEmpty. Operand 86716 states and 127673 transitions. [2021-12-14 17:39:16,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-14 17:39:16,190 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:39:16,190 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:39:16,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-14 17:39:16,190 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:39:16,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:39:16,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1878818405, now seen corresponding path program 1 times [2021-12-14 17:39:16,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:39:16,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077072514] [2021-12-14 17:39:16,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:39:16,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:39:16,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:16,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 17:39:16,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:16,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-14 17:39:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:16,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-14 17:39:16,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:16,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:39:16,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:16,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:39:16,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:16,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:39:16,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:16,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 17:39:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:16,417 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:39:16,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:39:16,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077072514] [2021-12-14 17:39:16,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077072514] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:39:16,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:39:16,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:39:16,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031191540] [2021-12-14 17:39:16,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:39:16,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:39:16,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:39:16,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:39:16,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:39:16,420 INFO L87 Difference]: Start difference. First operand 86716 states and 127673 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)