./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 6c24879c 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-?-6c24879 [2022-07-12 12:14:57,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 12:14:57,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 12:14:57,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 12:14:57,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 12:14:57,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 12:14:57,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 12:14:57,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 12:14:57,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 12:14:57,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 12:14:57,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 12:14:57,747 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 12:14:57,747 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 12:14:57,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 12:14:57,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 12:14:57,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 12:14:57,754 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 12:14:57,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 12:14:57,758 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 12:14:57,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 12:14:57,763 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 12:14:57,780 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 12:14:57,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 12:14:57,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 12:14:57,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 12:14:57,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 12:14:57,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 12:14:57,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 12:14:57,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 12:14:57,789 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 12:14:57,790 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 12:14:57,790 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 12:14:57,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 12:14:57,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 12:14:57,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 12:14:57,794 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 12:14:57,794 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 12:14:57,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 12:14:57,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 12:14:57,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 12:14:57,795 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 12:14:57,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 12:14:57,798 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 12:14:57,853 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 12:14:57,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 12:14:57,854 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 12:14:57,854 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 12:14:57,855 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 12:14:57,855 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 12:14:57,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 12:14:57,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 12:14:57,856 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 12:14:57,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 12:14:57,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 12:14:57,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 12:14:57,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 12:14:57,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 12:14:57,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 12:14:57,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 12:14:57,858 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 12:14:57,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 12:14:57,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 12:14:57,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 12:14:57,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 12:14:57,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:14:57,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 12:14:57,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 12:14:57,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 12:14:57,875 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 12:14:57,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 12:14:57,876 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 12:14:57,876 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 12:14:57,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 12:14:57,876 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0991342cd9e67cbadb964d86a1516812eb3aa45e84d4674c09b8e10a19f475c1 [2022-07-12 12:14:58,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 12:14:58,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 12:14:58,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 12:14:58,288 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 12:14:58,288 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 12:14:58,290 INFO L432 ainManager$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 [2022-07-12 12:14:58,365 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5eae52913/0a12434c947e4d19950b01fcfd5a75fa/FLAG462b69f44 [2022-07-12 12:14:59,664 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 12:14:59,665 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 [2022-07-12 12:14:59,784 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5eae52913/0a12434c947e4d19950b01fcfd5a75fa/FLAG462b69f44 [2022-07-12 12:14:59,958 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5eae52913/0a12434c947e4d19950b01fcfd5a75fa [2022-07-12 12:14:59,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 12:14:59,968 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 12:14:59,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 12:14:59,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 12:14:59,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 12:14:59,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:14:59" (1/1) ... [2022-07-12 12:14:59,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c77c345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:14:59, skipping insertion in model container [2022-07-12 12:14:59,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:14:59" (1/1) ... [2022-07-12 12:14:59,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 12:15:00,174 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:15:04,336 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] [2022-07-12 12:15:04,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:15:04,691 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 12:15:05,440 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] [2022-07-12 12:15:05,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:15:05,609 INFO L208 MainTranslator]: Completed translation [2022-07-12 12:15:05,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:15:05 WrapperNode [2022-07-12 12:15:05,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 12:15:05,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 12:15:05,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 12:15:05,613 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 12:15:05,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:15:05" (1/1) ... [2022-07-12 12:15:05,836 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:15:05" (1/1) ... [2022-07-12 12:15:06,276 INFO L137 Inliner]: procedures = 326, calls = 4469, calls flagged for inlining = 131, calls inlined = 121, statements flattened = 9217 [2022-07-12 12:15:06,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 12:15:06,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 12:15:06,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 12:15:06,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 12:15:06,287 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:15:05" (1/1) ... [2022-07-12 12:15:06,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:15:05" (1/1) ... [2022-07-12 12:15:06,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:15:05" (1/1) ... [2022-07-12 12:15:06,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:15:05" (1/1) ... [2022-07-12 12:15:06,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:15:05" (1/1) ... [2022-07-12 12:15:06,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:15:05" (1/1) ... [2022-07-12 12:15:06,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:15:05" (1/1) ... [2022-07-12 12:15:07,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 12:15:07,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 12:15:07,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 12:15:07,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 12:15:07,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:15:05" (1/1) ... [2022-07-12 12:15:07,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:15:07,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:15:07,209 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) [2022-07-12 12:15:07,255 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 [2022-07-12 12:15:07,289 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_ohci [2022-07-12 12:15:07,290 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_ohci [2022-07-12 12:15:07,290 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-12 12:15:07,290 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-12 12:15:07,290 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-07-12 12:15:07,290 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-07-12 12:15:07,291 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2022-07-12 12:15:07,291 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2022-07-12 12:15:07,291 INFO L130 BoogieDeclarations]: Found specification of procedure start_ed_unlink [2022-07-12 12:15:07,291 INFO L138 BoogieDeclarations]: Found implementation of procedure start_ed_unlink [2022-07-12 12:15:07,291 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_status [2022-07-12 12:15:07,291 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_status [2022-07-12 12:15:07,291 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-07-12 12:15:07,292 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-07-12 12:15:07,292 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_suspend [2022-07-12 12:15:07,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_suspend [2022-07-12 12:15:07,292 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_alloc [2022-07-12 12:15:07,292 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_alloc [2022-07-12 12:15:07,292 INFO L130 BoogieDeclarations]: Found specification of procedure show_list [2022-07-12 12:15:07,292 INFO L138 BoogieDeclarations]: Found implementation of procedure show_list [2022-07-12 12:15:07,292 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_probe [2022-07-12 12:15:07,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_probe [2022-07-12 12:15:07,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 12:15:07,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 12:15:07,307 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-07-12 12:15:07,307 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-07-12 12:15:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpup [2022-07-12 12:15:07,308 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpup [2022-07-12 12:15:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure hcfs2string [2022-07-12 12:15:07,308 INFO L138 BoogieDeclarations]: Found implementation of procedure hcfs2string [2022-07-12 12:15:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_zfmicro [2022-07-12 12:15:07,308 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_zfmicro [2022-07-12 12:15:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure usb_disabled [2022-07-12 12:15:07,309 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_disabled [2022-07-12 12:15:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_status_data [2022-07-12 12:15:07,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_status_data [2022-07-12 12:15:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_reset [2022-07-12 12:15:07,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_reset [2022-07-12 12:15:07,310 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_shutdown [2022-07-12 12:15:07,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_shutdown [2022-07-12 12:15:07,310 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 12:15:07,310 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 12:15:07,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 12:15:07,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 12:15:07,310 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_intr_mask [2022-07-12 12:15:07,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_intr_mask [2022-07-12 12:15:07,311 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_buffer [2022-07-12 12:15:07,311 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_buffer [2022-07-12 12:15:07,311 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_writel [2022-07-12 12:15:07,312 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_writel [2022-07-12 12:15:07,312 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-12 12:15:07,312 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-12 12:15:07,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 12:15:07,312 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 12:15:07,313 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hwPSWp [2022-07-12 12:15:07,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hwPSWp [2022-07-12 12:15:07,313 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_resume [2022-07-12 12:15:07,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_resume [2022-07-12 12:15:07,314 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_suspend [2022-07-12 12:15:07,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_suspend [2022-07-12 12:15:07,315 INFO L130 BoogieDeclarations]: Found specification of procedure debug_output [2022-07-12 12:15:07,315 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_output [2022-07-12 12:15:07,315 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-12 12:15:07,315 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-12 12:15:07,315 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 12:15:07,315 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 12:15:07,316 INFO L130 BoogieDeclarations]: Found specification of procedure ed_schedule [2022-07-12 12:15:07,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_schedule [2022-07-12 12:15:07,316 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hcd_init [2022-07-12 12:15:07,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hcd_init [2022-07-12 12:15:07,316 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_roothub [2022-07-12 12:15:07,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_roothub [2022-07-12 12:15:07,317 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2022-07-12 12:15:07,317 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2022-07-12 12:15:07,317 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-12 12:15:07,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-12 12:15:07,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 12:15:07,318 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_stop [2022-07-12 12:15:07,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_stop [2022-07-12 12:15:07,318 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-12 12:15:07,318 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-12 12:15:07,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 12:15:07,319 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2022-07-12 12:15:07,319 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2022-07-12 12:15:07,319 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_remove [2022-07-12 12:15:07,319 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_remove [2022-07-12 12:15:07,319 INFO L130 BoogieDeclarations]: Found specification of procedure check_ed [2022-07-12 12:15:07,319 INFO L138 BoogieDeclarations]: Found implementation of procedure check_ed [2022-07-12 12:15:07,319 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_restart [2022-07-12 12:15:07,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_restart [2022-07-12 12:15:07,320 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_nec [2022-07-12 12:15:07,321 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_nec [2022-07-12 12:15:07,321 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 12:15:07,321 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 12:15:07,321 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2022-07-12 12:15:07,321 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2022-07-12 12:15:07,322 INFO L130 BoogieDeclarations]: Found specification of procedure td_free [2022-07-12 12:15:07,322 INFO L138 BoogieDeclarations]: Found implementation of procedure td_free [2022-07-12 12:15:07,322 INFO L130 BoogieDeclarations]: Found specification of procedure broken_suspend [2022-07-12 12:15:07,323 INFO L138 BoogieDeclarations]: Found implementation of procedure broken_suspend [2022-07-12 12:15:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 12:15:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_resume [2022-07-12 12:15:07,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_resume [2022-07-12 12:15:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_platform_shutdown [2022-07-12 12:15:07,324 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_platform_shutdown [2022-07-12 12:15:07,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 12:15:07,324 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_portstatus [2022-07-12 12:15:07,324 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_portstatus [2022-07-12 12:15:07,324 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-07-12 12:15:07,324 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-07-12 12:15:07,324 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hc_died [2022-07-12 12:15:07,324 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hc_died [2022-07-12 12:15:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_remove [2022-07-12 12:15:07,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_remove [2022-07-12 12:15:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-07-12 12:15:07,325 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-07-12 12:15:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-12 12:15:07,326 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-12 12:15:07,326 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-07-12 12:15:07,328 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-07-12 12:15:07,329 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-12 12:15:07,329 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-12 12:15:07,329 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-12 12:15:07,329 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-12 12:15:07,331 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-12 12:15:07,331 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-12 12:15:07,331 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_resume [2022-07-12 12:15:07,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_resume [2022-07-12 12:15:07,337 INFO L130 BoogieDeclarations]: Found specification of procedure ed_free [2022-07-12 12:15:07,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_free [2022-07-12 12:15:07,337 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-12 12:15:07,337 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-12 12:15:07,338 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2022-07-12 12:15:07,338 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2022-07-12 12:15:07,338 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_start [2022-07-12 12:15:07,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_start [2022-07-12 12:15:07,338 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump [2022-07-12 12:15:07,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump [2022-07-12 12:15:07,338 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_frame_no [2022-07-12 12:15:07,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_frame_no [2022-07-12 12:15:07,338 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 12:15:07,339 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 12:15:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-07-12 12:15:07,339 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-07-12 12:15:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-12 12:15:07,339 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-12 12:15:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure sb800_prefetch [2022-07-12 12:15:07,339 INFO L138 BoogieDeclarations]: Found implementation of procedure sb800_prefetch [2022-07-12 12:15:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_control [2022-07-12 12:15:07,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_control [2022-07-12 12:15:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2022-07-12 12:15:07,340 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2022-07-12 12:15:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 12:15:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure finish_urb [2022-07-12 12:15:07,355 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_urb [2022-07-12 12:15:07,355 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_suspend [2022-07-12 12:15:07,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_suspend [2022-07-12 12:15:07,356 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_a [2022-07-12 12:15:07,356 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_a [2022-07-12 12:15:07,356 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_irq [2022-07-12 12:15:07,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_irq [2022-07-12 12:15:07,356 INFO L130 BoogieDeclarations]: Found specification of procedure rh_state_string [2022-07-12 12:15:07,356 INFO L138 BoogieDeclarations]: Found implementation of procedure rh_state_string [2022-07-12 12:15:07,356 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_b [2022-07-12 12:15:07,356 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_b [2022-07-12 12:15:07,357 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_enqueue [2022-07-12 12:15:07,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_enqueue [2022-07-12 12:15:07,357 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_start_port_reset [2022-07-12 12:15:07,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_start_port_reset [2022-07-12 12:15:07,357 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_to_hcd [2022-07-12 12:15:07,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_to_hcd [2022-07-12 12:15:07,357 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_start [2022-07-12 12:15:07,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_start [2022-07-12 12:15:07,358 INFO L130 BoogieDeclarations]: Found specification of procedure td_alloc [2022-07-12 12:15:07,358 INFO L138 BoogieDeclarations]: Found implementation of procedure td_alloc [2022-07-12 12:15:07,358 INFO L130 BoogieDeclarations]: Found specification of procedure find_head [2022-07-12 12:15:07,358 INFO L138 BoogieDeclarations]: Found implementation of procedure find_head [2022-07-12 12:15:07,359 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 12:15:07,359 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 12:15:07,359 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_run [2022-07-12 12:15:07,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_run [2022-07-12 12:15:07,359 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-07-12 12:15:07,359 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-07-12 12:15:07,359 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_endpoint_disable [2022-07-12 12:15:07,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_endpoint_disable [2022-07-12 12:15:07,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 12:15:07,360 INFO L130 BoogieDeclarations]: Found specification of procedure takeback_td [2022-07-12 12:15:07,360 INFO L138 BoogieDeclarations]: Found implementation of procedure takeback_td [2022-07-12 12:15:07,360 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdprefetch [2022-07-12 12:15:07,360 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdprefetch [2022-07-12 12:15:07,360 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-12 12:15:07,360 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-12 12:15:07,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 12:15:07,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 12:15:07,361 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_readl [2022-07-12 12:15:07,361 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_readl [2022-07-12 12:15:07,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 12:15:07,361 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2022-07-12 12:15:07,361 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2022-07-12 12:15:07,361 INFO L130 BoogieDeclarations]: Found specification of procedure dl_done_list [2022-07-12 12:15:07,361 INFO L138 BoogieDeclarations]: Found implementation of procedure dl_done_list [2022-07-12 12:15:07,362 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_poll_rh_status [2022-07-12 12:15:07,362 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_poll_rh_status [2022-07-12 12:15:07,362 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-12 12:15:07,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-12 12:15:07,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 12:15:07,362 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_reinit [2022-07-12 12:15:07,362 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_reinit [2022-07-12 12:15:07,362 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2022-07-12 12:15:07,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2022-07-12 12:15:07,363 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 12:15:07,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 12:15:07,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 12:15:07,363 INFO L130 BoogieDeclarations]: Found specification of procedure td_done [2022-07-12 12:15:07,363 INFO L138 BoogieDeclarations]: Found implementation of procedure td_done [2022-07-12 12:15:07,363 INFO L130 BoogieDeclarations]: Found specification of procedure td_fill [2022-07-12 12:15:07,363 INFO L138 BoogieDeclarations]: Found implementation of procedure td_fill [2022-07-12 12:15:07,364 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_dequeue [2022-07-12 12:15:07,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_dequeue [2022-07-12 12:15:07,364 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 12:15:07,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 12:15:07,364 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_init [2022-07-12 12:15:07,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_init [2022-07-12 12:15:07,364 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-12 12:15:07,364 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-12 12:15:07,365 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc16 [2022-07-12 12:15:07,365 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc16 [2022-07-12 12:15:07,365 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-12 12:15:07,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-12 12:15:07,365 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdiso [2022-07-12 12:15:07,365 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdiso [2022-07-12 12:15:07,365 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2022-07-12 12:15:07,365 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2022-07-12 12:15:07,366 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-12 12:15:07,366 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-12 12:15:07,366 INFO L130 BoogieDeclarations]: Found specification of procedure ed_deschedule [2022-07-12 12:15:07,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_deschedule [2022-07-12 12:15:07,366 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_resume_root_hub [2022-07-12 12:15:07,366 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_resume_root_hub [2022-07-12 12:15:07,366 INFO L130 BoogieDeclarations]: Found specification of procedure urb_free_priv [2022-07-12 12:15:07,366 INFO L138 BoogieDeclarations]: Found implementation of procedure urb_free_priv [2022-07-12 12:15:07,367 INFO L130 BoogieDeclarations]: Found specification of procedure finish_unlinks [2022-07-12 12:15:07,367 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_unlinks [2022-07-12 12:15:07,367 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpu [2022-07-12 12:15:07,367 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpu [2022-07-12 12:15:07,368 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2022-07-12 12:15:07,370 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2022-07-12 12:15:07,371 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_status [2022-07-12 12:15:07,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_status [2022-07-12 12:15:07,371 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_print_eds [2022-07-12 12:15:07,371 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_print_eds [2022-07-12 12:15:07,371 INFO L130 BoogieDeclarations]: Found specification of procedure debug_close [2022-07-12 12:15:07,371 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_close [2022-07-12 12:15:07,371 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_get_frame [2022-07-12 12:15:07,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_get_frame [2022-07-12 12:15:07,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2022-07-12 12:15:07,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2022-07-12 12:15:07,373 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 12:15:07,373 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 12:15:07,373 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-12 12:15:07,373 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-12 12:15:07,373 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc32 [2022-07-12 12:15:07,373 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc32 [2022-07-12 12:15:07,374 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-12 12:15:07,374 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-12 12:15:07,374 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_usb_reset [2022-07-12 12:15:07,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_usb_reset [2022-07-12 12:15:07,374 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_resume [2022-07-12 12:15:07,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_resume [2022-07-12 12:15:07,374 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-12 12:15:07,375 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-12 12:15:07,375 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-12 12:15:07,375 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-12 12:15:07,375 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_suspend [2022-07-12 12:15:07,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_suspend [2022-07-12 12:15:07,375 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_reset [2022-07-12 12:15:07,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_reset [2022-07-12 12:15:07,376 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_shutdown [2022-07-12 12:15:07,376 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_shutdown [2022-07-12 12:15:07,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 12:15:07,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 12:15:07,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 12:15:07,376 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2022-07-12 12:15:07,376 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2022-07-12 12:15:08,858 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 12:15:08,873 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 12:15:21,258 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 12:15:21,320 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 12:15:21,320 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-12 12:15:21,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:15:21 BoogieIcfgContainer [2022-07-12 12:15:21,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 12:15:21,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 12:15:21,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 12:15:21,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 12:15:21,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 12:14:59" (1/3) ... [2022-07-12 12:15:21,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bcaf34c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:15:21, skipping insertion in model container [2022-07-12 12:15:21,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:15:05" (2/3) ... [2022-07-12 12:15:21,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bcaf34c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:15:21, skipping insertion in model container [2022-07-12 12:15:21,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:15:21" (3/3) ... [2022-07-12 12:15:21,342 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2022-07-12 12:15:21,356 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 12:15:21,357 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 12:15:21,528 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 12:15:21,536 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@70b20dbb, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3c11cdc4 [2022-07-12 12:15:21,536 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 12:15:21,561 INFO L276 IsEmpty]: Start isEmpty. Operand has 3516 states, 2534 states have (on average 1.436069455406472) internal successors, (3639), 2605 states have internal predecessors, (3639), 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) [2022-07-12 12:15:21,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-12 12:15:21,586 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:15:21,587 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:15:21,587 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:15:21,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:15:21,601 INFO L85 PathProgramCache]: Analyzing trace with hash -358052195, now seen corresponding path program 1 times [2022-07-12 12:15:21,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:15:21,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191167038] [2022-07-12 12:15:21,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:15:21,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:15:22,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:15:22,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:15:22,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:15:22,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191167038] [2022-07-12 12:15:22,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191167038] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:15:22,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:15:22,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:15:22,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044840209] [2022-07-12 12:15:22,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:15:22,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:15:22,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:15:22,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:15:22,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:15:22,853 INFO L87 Difference]: Start difference. First operand has 3516 states, 2534 states have (on average 1.436069455406472) internal successors, (3639), 2605 states have internal predecessors, (3639), 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) [2022-07-12 12:15:24,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:15:24,180 INFO L93 Difference]: Finished difference Result 10492 states and 16246 transitions. [2022-07-12 12:15:24,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:15:24,186 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 [2022-07-12 12:15:24,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:15:24,332 INFO L225 Difference]: With dead ends: 10492 [2022-07-12 12:15:24,333 INFO L226 Difference]: Without dead ends: 6969 [2022-07-12 12:15:24,414 INFO L412 NwaCegarLoop]: 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 [2022-07-12 12:15:24,419 INFO L413 NwaCegarLoop]: 6969 mSDtfsCounter, 5154 mSDsluCounter, 5179 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5154 SdHoareTripleChecker+Valid, 12148 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 12:15:24,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5154 Valid, 12148 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 12:15:24,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6969 states. [2022-07-12 12:15:25,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6969 to 6955. [2022-07-12 12:15:25,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6955 states, 5006 states have (on average 1.3933280063923292) internal successors, (6975), 5140 states have internal predecessors, (6975), 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) [2022-07-12 12:15:25,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6955 states to 6955 states and 10325 transitions. [2022-07-12 12:15:25,369 INFO L78 Accepts]: Start accepts. Automaton has 6955 states and 10325 transitions. Word has length 14 [2022-07-12 12:15:25,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:15:25,376 INFO L495 AbstractCegarLoop]: Abstraction has 6955 states and 10325 transitions. [2022-07-12 12:15:25,377 INFO L496 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) [2022-07-12 12:15:25,377 INFO L276 IsEmpty]: Start isEmpty. Operand 6955 states and 10325 transitions. [2022-07-12 12:15:25,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-12 12:15:25,384 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:15:25,384 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:15:25,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 12:15:25,384 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:15:25,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:15:25,385 INFO L85 PathProgramCache]: Analyzing trace with hash -687216903, now seen corresponding path program 1 times [2022-07-12 12:15:25,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:15:25,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828928522] [2022-07-12 12:15:25,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:15:25,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:15:25,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:15:26,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:15:26,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:15:26,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828928522] [2022-07-12 12:15:26,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828928522] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:15:26,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:15:26,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:15:26,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857132765] [2022-07-12 12:15:26,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:15:26,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:15:26,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:15:26,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:15:26,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:15:26,049 INFO L87 Difference]: Start difference. First operand 6955 states and 10325 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) [2022-07-12 12:15:27,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:15:27,207 INFO L93 Difference]: Finished difference Result 20815 states and 30895 transitions. [2022-07-12 12:15:27,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:15:27,208 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 [2022-07-12 12:15:27,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:15:27,367 INFO L225 Difference]: With dead ends: 20815 [2022-07-12 12:15:27,367 INFO L226 Difference]: Without dead ends: 13863 [2022-07-12 12:15:27,482 INFO L412 NwaCegarLoop]: 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 [2022-07-12 12:15:27,484 INFO L413 NwaCegarLoop]: 6437 mSDtfsCounter, 5146 mSDsluCounter, 5173 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5146 SdHoareTripleChecker+Valid, 11610 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 12:15:27,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5146 Valid, 11610 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 12:15:27,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13863 states. [2022-07-12 12:15:28,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13863 to 13849. [2022-07-12 12:15:28,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13849 states, 9966 states have (on average 1.3924342765402369) internal successors, (13877), 10230 states have internal predecessors, (13877), 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) [2022-07-12 12:15:28,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13849 states to 13849 states and 20555 transitions. [2022-07-12 12:15:28,842 INFO L78 Accepts]: Start accepts. Automaton has 13849 states and 20555 transitions. Word has length 16 [2022-07-12 12:15:28,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:15:28,847 INFO L495 AbstractCegarLoop]: Abstraction has 13849 states and 20555 transitions. [2022-07-12 12:15:28,847 INFO L496 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) [2022-07-12 12:15:28,848 INFO L276 IsEmpty]: Start isEmpty. Operand 13849 states and 20555 transitions. [2022-07-12 12:15:28,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-12 12:15:28,850 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:15:28,850 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:15:28,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 12:15:28,850 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:15:28,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:15:28,871 INFO L85 PathProgramCache]: Analyzing trace with hash 360574127, now seen corresponding path program 1 times [2022-07-12 12:15:28,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:15:28,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123880619] [2022-07-12 12:15:28,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:15:28,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:15:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:15:29,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:15:29,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:15:29,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123880619] [2022-07-12 12:15:29,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123880619] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:15:29,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:15:29,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:15:29,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271123950] [2022-07-12 12:15:29,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:15:29,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:15:29,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:15:29,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:15:29,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:15:29,576 INFO L87 Difference]: Start difference. First operand 13849 states and 20555 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) [2022-07-12 12:15:31,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:15:31,112 INFO L93 Difference]: Finished difference Result 41395 states and 61442 transitions. [2022-07-12 12:15:31,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:15:31,113 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 [2022-07-12 12:15:31,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:15:31,643 INFO L225 Difference]: With dead ends: 41395 [2022-07-12 12:15:31,644 INFO L226 Difference]: Without dead ends: 27549 [2022-07-12 12:15:31,769 INFO L412 NwaCegarLoop]: 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 [2022-07-12 12:15:31,771 INFO L413 NwaCegarLoop]: 7623 mSDtfsCounter, 5144 mSDsluCounter, 5173 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5144 SdHoareTripleChecker+Valid, 12796 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:15:31,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5144 Valid, 12796 Invalid, 17 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 12:15:31,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27549 states. [2022-07-12 12:15:33,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27549 to 27535. [2022-07-12 12:15:33,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27535 states, 19807 states have (on average 1.3918311707982027) internal successors, (27568), 20330 states have internal predecessors, (27568), 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) [2022-07-12 12:15:34,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27535 states to 27535 states and 40870 transitions. [2022-07-12 12:15:34,225 INFO L78 Accepts]: Start accepts. Automaton has 27535 states and 40870 transitions. Word has length 18 [2022-07-12 12:15:34,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:15:34,226 INFO L495 AbstractCegarLoop]: Abstraction has 27535 states and 40870 transitions. [2022-07-12 12:15:34,226 INFO L496 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) [2022-07-12 12:15:34,227 INFO L276 IsEmpty]: Start isEmpty. Operand 27535 states and 40870 transitions. [2022-07-12 12:15:34,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-12 12:15:34,231 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:15:34,231 INFO L195 NwaCegarLoop]: 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] [2022-07-12 12:15:34,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 12:15:34,232 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:15:34,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:15:34,232 INFO L85 PathProgramCache]: Analyzing trace with hash 230013637, now seen corresponding path program 1 times [2022-07-12 12:15:34,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:15:34,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853720500] [2022-07-12 12:15:34,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:15:34,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:15:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:15:34,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 12:15:34,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:15:34,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:15:34,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:15:34,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853720500] [2022-07-12 12:15:34,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853720500] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:15:34,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:15:34,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:15:34,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140747861] [2022-07-12 12:15:34,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:15:34,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:15:34,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:15:34,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:15:34,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:15:34,949 INFO L87 Difference]: Start difference. First operand 27535 states and 40870 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) [2022-07-12 12:15:36,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:15:36,341 INFO L93 Difference]: Finished difference Result 27558 states and 40898 transitions. [2022-07-12 12:15:36,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:15:36,342 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 [2022-07-12 12:15:36,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:15:36,587 INFO L225 Difference]: With dead ends: 27558 [2022-07-12 12:15:36,588 INFO L226 Difference]: Without dead ends: 27547 [2022-07-12 12:15:36,610 INFO L412 NwaCegarLoop]: 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 [2022-07-12 12:15:36,627 INFO L413 NwaCegarLoop]: 5203 mSDtfsCounter, 5186 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5186 SdHoareTripleChecker+Valid, 5216 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 12:15:36,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5186 Valid, 5216 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 12:15:36,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27547 states. [2022-07-12 12:15:38,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27547 to 27536. [2022-07-12 12:15:38,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27536 states, 19808 states have (on average 1.3918113893376414) internal successors, (27569), 20331 states have internal predecessors, (27569), 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) [2022-07-12 12:15:38,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27536 states to 27536 states and 40871 transitions. [2022-07-12 12:15:38,767 INFO L78 Accepts]: Start accepts. Automaton has 27536 states and 40871 transitions. Word has length 29 [2022-07-12 12:15:38,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:15:38,768 INFO L495 AbstractCegarLoop]: Abstraction has 27536 states and 40871 transitions. [2022-07-12 12:15:38,768 INFO L496 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) [2022-07-12 12:15:38,769 INFO L276 IsEmpty]: Start isEmpty. Operand 27536 states and 40871 transitions. [2022-07-12 12:15:38,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-12 12:15:38,773 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:15:38,773 INFO L195 NwaCegarLoop]: 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] [2022-07-12 12:15:38,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 12:15:38,774 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:15:38,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:15:38,774 INFO L85 PathProgramCache]: Analyzing trace with hash 287271939, now seen corresponding path program 1 times [2022-07-12 12:15:38,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:15:38,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499956710] [2022-07-12 12:15:38,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:15:38,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:15:38,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:15:39,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 12:15:39,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:15:39,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:15:39,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:15:39,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499956710] [2022-07-12 12:15:39,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499956710] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:15:39,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:15:39,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:15:39,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804085685] [2022-07-12 12:15:39,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:15:39,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:15:39,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:15:39,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:15:39,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:15:39,250 INFO L87 Difference]: Start difference. First operand 27536 states and 40871 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) [2022-07-12 12:15:40,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:15:40,413 INFO L93 Difference]: Finished difference Result 27538 states and 40872 transitions. [2022-07-12 12:15:40,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:15:40,414 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 [2022-07-12 12:15:40,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:15:40,700 INFO L225 Difference]: With dead ends: 27538 [2022-07-12 12:15:40,701 INFO L226 Difference]: Without dead ends: 27535 [2022-07-12 12:15:40,735 INFO L412 NwaCegarLoop]: 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 [2022-07-12 12:15:40,751 INFO L413 NwaCegarLoop]: 5188 mSDtfsCounter, 5166 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5166 SdHoareTripleChecker+Valid, 5188 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 [2022-07-12 12:15:40,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5166 Valid, 5188 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 12:15:40,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27535 states. [2022-07-12 12:15:42,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27535 to 27535. [2022-07-12 12:15:42,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27535 states, 19808 states have (on average 1.3917609046849757) internal successors, (27568), 20330 states have internal predecessors, (27568), 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) [2022-07-12 12:15:42,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27535 states to 27535 states and 40869 transitions. [2022-07-12 12:15:42,900 INFO L78 Accepts]: Start accepts. Automaton has 27535 states and 40869 transitions. Word has length 29 [2022-07-12 12:15:42,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:15:42,903 INFO L495 AbstractCegarLoop]: Abstraction has 27535 states and 40869 transitions. [2022-07-12 12:15:42,903 INFO L496 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) [2022-07-12 12:15:42,903 INFO L276 IsEmpty]: Start isEmpty. Operand 27535 states and 40869 transitions. [2022-07-12 12:15:42,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-12 12:15:42,909 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:15:42,910 INFO L195 NwaCegarLoop]: 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] [2022-07-12 12:15:42,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 12:15:42,921 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:15:42,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:15:42,922 INFO L85 PathProgramCache]: Analyzing trace with hash 314027652, now seen corresponding path program 1 times [2022-07-12 12:15:42,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:15:42,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296813522] [2022-07-12 12:15:42,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:15:43,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:15:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:15:43,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 12:15:43,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:15:43,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:15:43,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:15:43,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296813522] [2022-07-12 12:15:43,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296813522] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:15:43,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:15:43,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:15:43,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413774517] [2022-07-12 12:15:43,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:15:43,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:15:43,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:15:43,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:15:43,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:15:43,723 INFO L87 Difference]: Start difference. First operand 27535 states and 40869 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) [2022-07-12 12:15:44,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:15:44,941 INFO L93 Difference]: Finished difference Result 27537 states and 40870 transitions. [2022-07-12 12:15:44,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:15:44,942 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 [2022-07-12 12:15:44,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:15:45,326 INFO L225 Difference]: With dead ends: 27537 [2022-07-12 12:15:45,327 INFO L226 Difference]: Without dead ends: 27534 [2022-07-12 12:15:45,424 INFO L412 NwaCegarLoop]: 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 [2022-07-12 12:15:45,440 INFO L413 NwaCegarLoop]: 5186 mSDtfsCounter, 5163 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5163 SdHoareTripleChecker+Valid, 5186 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 [2022-07-12 12:15:45,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5163 Valid, 5186 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 12:15:45,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27534 states. [2022-07-12 12:15:47,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27534 to 27534. [2022-07-12 12:15:47,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27534 states, 19808 states have (on average 1.3917104200323103) internal successors, (27567), 20329 states have internal predecessors, (27567), 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) [2022-07-12 12:15:47,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27534 states to 27534 states and 40867 transitions. [2022-07-12 12:15:47,762 INFO L78 Accepts]: Start accepts. Automaton has 27534 states and 40867 transitions. Word has length 30 [2022-07-12 12:15:47,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:15:47,763 INFO L495 AbstractCegarLoop]: Abstraction has 27534 states and 40867 transitions. [2022-07-12 12:15:47,763 INFO L496 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) [2022-07-12 12:15:47,763 INFO L276 IsEmpty]: Start isEmpty. Operand 27534 states and 40867 transitions. [2022-07-12 12:15:47,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-12 12:15:47,779 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:15:47,779 INFO L195 NwaCegarLoop]: 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] [2022-07-12 12:15:47,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 12:15:47,780 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:15:47,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:15:47,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1143459622, now seen corresponding path program 1 times [2022-07-12 12:15:47,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:15:47,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676019288] [2022-07-12 12:15:47,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:15:47,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:15:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:15:48,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 12:15:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:15:48,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:15:48,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:15:48,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676019288] [2022-07-12 12:15:48,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676019288] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:15:48,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:15:48,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:15:48,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700867550] [2022-07-12 12:15:48,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:15:48,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:15:48,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:15:48,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:15:48,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:15:48,116 INFO L87 Difference]: Start difference. First operand 27534 states and 40867 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) [2022-07-12 12:15:49,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:15:49,916 INFO L93 Difference]: Finished difference Result 42791 states and 62688 transitions. [2022-07-12 12:15:49,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:15:49,932 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 [2022-07-12 12:15:49,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:15:50,592 INFO L225 Difference]: With dead ends: 42791 [2022-07-12 12:15:50,592 INFO L226 Difference]: Without dead ends: 42787 [2022-07-12 12:15:50,689 INFO L412 NwaCegarLoop]: 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 [2022-07-12 12:15:50,690 INFO L413 NwaCegarLoop]: 6167 mSDtfsCounter, 5126 mSDsluCounter, 3146 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5126 SdHoareTripleChecker+Valid, 9313 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 [2022-07-12 12:15:50,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5126 Valid, 9313 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 12:15:50,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42787 states. [2022-07-12 12:15:53,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42787 to 42785. [2022-07-12 12:15:53,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42785 states, 30651 states have (on average 1.3716355094450425) internal successors, (42042), 31429 states have internal predecessors, (42042), 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) [2022-07-12 12:15:54,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42785 states to 42785 states and 62676 transitions. [2022-07-12 12:15:54,265 INFO L78 Accepts]: Start accepts. Automaton has 42785 states and 62676 transitions. Word has length 31 [2022-07-12 12:15:54,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:15:54,266 INFO L495 AbstractCegarLoop]: Abstraction has 42785 states and 62676 transitions. [2022-07-12 12:15:54,267 INFO L496 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) [2022-07-12 12:15:54,267 INFO L276 IsEmpty]: Start isEmpty. Operand 42785 states and 62676 transitions. [2022-07-12 12:15:54,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-12 12:15:54,271 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:15:54,271 INFO L195 NwaCegarLoop]: 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] [2022-07-12 12:15:54,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 12:15:54,272 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:15:54,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:15:54,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1086051783, now seen corresponding path program 1 times [2022-07-12 12:15:54,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:15:54,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971067763] [2022-07-12 12:15:54,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:15:54,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:15:54,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:15:54,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 12:15:54,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:15:54,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:15:54,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:15:54,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971067763] [2022-07-12 12:15:54,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971067763] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:15:54,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:15:54,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:15:54,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590423897] [2022-07-12 12:15:54,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:15:54,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:15:54,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:15:54,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:15:54,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:15:54,932 INFO L87 Difference]: Start difference. First operand 42785 states and 62676 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) [2022-07-12 12:15:56,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:15:56,130 INFO L93 Difference]: Finished difference Result 42787 states and 62677 transitions. [2022-07-12 12:15:56,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:15:56,138 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 [2022-07-12 12:15:56,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:15:56,945 INFO L225 Difference]: With dead ends: 42787 [2022-07-12 12:15:56,945 INFO L226 Difference]: Without dead ends: 42698 [2022-07-12 12:15:56,983 INFO L412 NwaCegarLoop]: 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 [2022-07-12 12:15:56,984 INFO L413 NwaCegarLoop]: 5181 mSDtfsCounter, 5155 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5155 SdHoareTripleChecker+Valid, 5181 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 12:15:56,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5155 Valid, 5181 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 12:15:57,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42698 states. [2022-07-12 12:15:58,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42698 to 42697. [2022-07-12 12:15:58,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42697 states, 30604 states have (on average 1.371683440073193) internal successors, (41979), 31374 states have internal predecessors, (41979), 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) [2022-07-12 12:15:59,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42697 states to 42697 states and 62548 transitions. [2022-07-12 12:15:59,096 INFO L78 Accepts]: Start accepts. Automaton has 42697 states and 62548 transitions. Word has length 32 [2022-07-12 12:15:59,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:15:59,098 INFO L495 AbstractCegarLoop]: Abstraction has 42697 states and 62548 transitions. [2022-07-12 12:15:59,098 INFO L496 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) [2022-07-12 12:15:59,098 INFO L276 IsEmpty]: Start isEmpty. Operand 42697 states and 62548 transitions. [2022-07-12 12:15:59,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-12 12:15:59,114 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:15:59,114 INFO L195 NwaCegarLoop]: 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] [2022-07-12 12:15:59,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 12:15:59,114 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:15:59,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:15:59,115 INFO L85 PathProgramCache]: Analyzing trace with hash -481476166, now seen corresponding path program 1 times [2022-07-12 12:15:59,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:15:59,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598081216] [2022-07-12 12:15:59,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:15:59,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:15:59,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:15:59,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 12:15:59,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:15:59,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 12:15:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:15:59,919 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:15:59,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:15:59,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598081216] [2022-07-12 12:15:59,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598081216] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:15:59,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:15:59,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:15:59,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299898662] [2022-07-12 12:15:59,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:15:59,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:15:59,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:15:59,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:15:59,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:15:59,922 INFO L87 Difference]: Start difference. First operand 42697 states and 62548 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 12:16:02,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:16:02,023 INFO L93 Difference]: Finished difference Result 85415 states and 125125 transitions. [2022-07-12 12:16:02,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 12:16:02,030 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2022-07-12 12:16:02,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:16:02,470 INFO L225 Difference]: With dead ends: 85415 [2022-07-12 12:16:02,470 INFO L226 Difference]: Without dead ends: 42697 [2022-07-12 12:16:02,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:16:02,831 INFO L413 NwaCegarLoop]: 5159 mSDtfsCounter, 3 mSDsluCounter, 10312 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 15471 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:16:02,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 15471 Invalid, 12 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 12:16:02,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42697 states. [2022-07-12 12:16:04,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42697 to 42697. [2022-07-12 12:16:05,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42697 states, 30604 states have (on average 1.3714220363351195) internal successors, (41971), 31374 states have internal predecessors, (41971), 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) [2022-07-12 12:16:05,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42697 states to 42697 states and 62540 transitions. [2022-07-12 12:16:05,360 INFO L78 Accepts]: Start accepts. Automaton has 42697 states and 62540 transitions. Word has length 48 [2022-07-12 12:16:05,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:16:05,362 INFO L495 AbstractCegarLoop]: Abstraction has 42697 states and 62540 transitions. [2022-07-12 12:16:05,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 12:16:05,363 INFO L276 IsEmpty]: Start isEmpty. Operand 42697 states and 62540 transitions. [2022-07-12 12:16:05,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-12 12:16:05,427 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:16:05,428 INFO L195 NwaCegarLoop]: 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] [2022-07-12 12:16:05,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 12:16:05,428 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:16:05,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:16:05,429 INFO L85 PathProgramCache]: Analyzing trace with hash -766261442, now seen corresponding path program 1 times [2022-07-12 12:16:05,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:16:05,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954963914] [2022-07-12 12:16:05,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:16:05,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:16:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:06,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 12:16:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:06,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 12:16:06,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:06,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 12:16:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:06,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:16:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:06,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:16:06,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:06,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:16:06,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:06,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 12:16:06,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:06,263 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:16:06,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:16:06,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954963914] [2022-07-12 12:16:06,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954963914] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:16:06,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:16:06,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:16:06,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842582866] [2022-07-12 12:16:06,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:16:06,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:16:06,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:16:06,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:16:06,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:16:06,267 INFO L87 Difference]: Start difference. First operand 42697 states and 62540 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) [2022-07-12 12:16:18,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:16:18,177 INFO L93 Difference]: Finished difference Result 115753 states and 171080 transitions. [2022-07-12 12:16:18,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:16:18,178 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 [2022-07-12 12:16:18,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:16:19,024 INFO L225 Difference]: With dead ends: 115753 [2022-07-12 12:16:19,030 INFO L226 Difference]: Without dead ends: 73059 [2022-07-12 12:16:19,238 INFO L412 NwaCegarLoop]: 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 [2022-07-12 12:16:19,239 INFO L413 NwaCegarLoop]: 9992 mSDtfsCounter, 6163 mSDsluCounter, 9373 mSDsCounter, 0 mSdLazyCounter, 3495 mSolverCounterSat, 1841 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6982 SdHoareTripleChecker+Valid, 19365 SdHoareTripleChecker+Invalid, 5336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1841 IncrementalHoareTripleChecker+Valid, 3495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:16:19,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6982 Valid, 19365 Invalid, 5336 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1841 Valid, 3495 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2022-07-12 12:16:19,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73059 states. [2022-07-12 12:16:22,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73059 to 62920. [2022-07-12 12:16:22,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62920 states, 45112 states have (on average 1.372007448129101) internal successors, (61894), 46248 states have internal predecessors, (61894), 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) [2022-07-12 12:16:23,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62920 states to 62920 states and 92199 transitions. [2022-07-12 12:16:23,109 INFO L78 Accepts]: Start accepts. Automaton has 62920 states and 92199 transitions. Word has length 77 [2022-07-12 12:16:23,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:16:23,110 INFO L495 AbstractCegarLoop]: Abstraction has 62920 states and 92199 transitions. [2022-07-12 12:16:23,111 INFO L496 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) [2022-07-12 12:16:23,111 INFO L276 IsEmpty]: Start isEmpty. Operand 62920 states and 92199 transitions. [2022-07-12 12:16:23,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-12 12:16:23,164 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:16:23,164 INFO L195 NwaCegarLoop]: 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] [2022-07-12 12:16:23,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 12:16:23,165 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:16:23,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:16:23,165 INFO L85 PathProgramCache]: Analyzing trace with hash -465588126, now seen corresponding path program 1 times [2022-07-12 12:16:23,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:16:23,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517213771] [2022-07-12 12:16:23,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:16:23,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:16:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:23,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 12:16:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:23,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 12:16:23,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:23,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 12:16:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:23,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:16:23,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:23,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:16:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:23,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:16:23,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:23,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 12:16:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:23,589 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:16:23,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:16:23,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517213771] [2022-07-12 12:16:23,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517213771] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:16:23,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:16:23,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:16:23,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704476445] [2022-07-12 12:16:23,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:16:23,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:16:23,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:16:23,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:16:23,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:16:23,592 INFO L87 Difference]: Start difference. First operand 62920 states and 92199 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) [2022-07-12 12:16:34,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:16:34,779 INFO L93 Difference]: Finished difference Result 169908 states and 251255 transitions. [2022-07-12 12:16:34,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:16:34,779 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 [2022-07-12 12:16:34,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:16:36,167 INFO L225 Difference]: With dead ends: 169908 [2022-07-12 12:16:36,168 INFO L226 Difference]: Without dead ends: 106991 [2022-07-12 12:16:36,421 INFO L412 NwaCegarLoop]: 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 [2022-07-12 12:16:36,422 INFO L413 NwaCegarLoop]: 9909 mSDtfsCounter, 6201 mSDsluCounter, 9327 mSDsCounter, 0 mSdLazyCounter, 3495 mSolverCounterSat, 1855 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7022 SdHoareTripleChecker+Valid, 19236 SdHoareTripleChecker+Invalid, 5350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1855 IncrementalHoareTripleChecker+Valid, 3495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-07-12 12:16:36,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7022 Valid, 19236 Invalid, 5350 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1855 Valid, 3495 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-07-12 12:16:36,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106991 states. [2022-07-12 12:16:40,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106991 to 92134. [2022-07-12 12:16:40,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92134 states, 66080 states have (on average 1.3728510895883776) internal successors, (90718), 67746 states have internal predecessors, (90718), 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) [2022-07-12 12:16:41,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92134 states to 92134 states and 135087 transitions. [2022-07-12 12:16:41,451 INFO L78 Accepts]: Start accepts. Automaton has 92134 states and 135087 transitions. Word has length 75 [2022-07-12 12:16:41,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:16:41,452 INFO L495 AbstractCegarLoop]: Abstraction has 92134 states and 135087 transitions. [2022-07-12 12:16:41,452 INFO L496 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) [2022-07-12 12:16:41,452 INFO L276 IsEmpty]: Start isEmpty. Operand 92134 states and 135087 transitions. [2022-07-12 12:16:41,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-12 12:16:41,469 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:16:41,469 INFO L195 NwaCegarLoop]: 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] [2022-07-12 12:16:41,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 12:16:41,470 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:16:41,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:16:41,470 INFO L85 PathProgramCache]: Analyzing trace with hash -159959948, now seen corresponding path program 1 times [2022-07-12 12:16:41,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:16:41,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732951903] [2022-07-12 12:16:41,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:16:41,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:16:41,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:41,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 12:16:41,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:41,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 12:16:41,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:41,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 12:16:41,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:41,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:16:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:41,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:16:41,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:41,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:16:41,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:41,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 12:16:41,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:41,789 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:16:41,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:16:41,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732951903] [2022-07-12 12:16:41,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732951903] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:16:41,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:16:41,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:16:41,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875551334] [2022-07-12 12:16:41,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:16:41,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:16:41,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:16:41,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:16:41,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:16:41,791 INFO L87 Difference]: Start difference. First operand 92134 states and 135087 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) [2022-07-12 12:16:51,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:16:51,999 INFO L93 Difference]: Finished difference Result 247430 states and 366180 transitions. [2022-07-12 12:16:51,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:16:52,000 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 79 [2022-07-12 12:16:52,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:16:53,250 INFO L225 Difference]: With dead ends: 247430 [2022-07-12 12:16:53,250 INFO L226 Difference]: Without dead ends: 155299 [2022-07-12 12:16:53,555 INFO L412 NwaCegarLoop]: 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 [2022-07-12 12:16:53,556 INFO L413 NwaCegarLoop]: 10017 mSDtfsCounter, 6168 mSDsluCounter, 9404 mSDsCounter, 0 mSdLazyCounter, 3495 mSolverCounterSat, 1839 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6987 SdHoareTripleChecker+Valid, 19421 SdHoareTripleChecker+Invalid, 5334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1839 IncrementalHoareTripleChecker+Valid, 3495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-07-12 12:16:53,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6987 Valid, 19421 Invalid, 5334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1839 Valid, 3495 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-07-12 12:16:53,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155299 states. [2022-07-12 12:16:58,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155299 to 133715. [2022-07-12 12:16:58,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133715 states, 95943 states have (on average 1.374076274454624) internal successors, (131833), 98366 states have internal predecessors, (131833), 32195 states have call successors, (32195), 5577 states have call predecessors, (32195), 5576 states have return successors, (32194), 31856 states have call predecessors, (32194), 32194 states have call successors, (32194) [2022-07-12 12:16:59,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133715 states to 133715 states and 196222 transitions. [2022-07-12 12:16:59,493 INFO L78 Accepts]: Start accepts. Automaton has 133715 states and 196222 transitions. Word has length 79 [2022-07-12 12:16:59,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:16:59,494 INFO L495 AbstractCegarLoop]: Abstraction has 133715 states and 196222 transitions. [2022-07-12 12:16:59,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2022-07-12 12:16:59,495 INFO L276 IsEmpty]: Start isEmpty. Operand 133715 states and 196222 transitions. [2022-07-12 12:16:59,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-12 12:16:59,532 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:16:59,532 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:16:59,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 12:16:59,533 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:16:59,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:16:59,533 INFO L85 PathProgramCache]: Analyzing trace with hash -646528785, now seen corresponding path program 1 times [2022-07-12 12:16:59,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:16:59,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746200210] [2022-07-12 12:16:59,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:16:59,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:16:59,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:59,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 12:16:59,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:59,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 12:16:59,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:59,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 12:16:59,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:59,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:16:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:59,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:16:59,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:59,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:16:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:59,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 12:16:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:59,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:16:59,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:59,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:16:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:59,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:16:59,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:59,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:16:59,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:59,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-12 12:16:59,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:16:59,926 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-12 12:16:59,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:16:59,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746200210] [2022-07-12 12:16:59,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746200210] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:16:59,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:16:59,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:16:59,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827890897] [2022-07-12 12:16:59,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:16:59,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:16:59,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:16:59,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:16:59,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:16:59,929 INFO L87 Difference]: Start difference. First operand 133715 states and 196222 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12)