./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 eb692b52 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-?-eb692b5 [2022-07-19 23:17:10,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 23:17:10,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 23:17:10,507 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 23:17:10,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 23:17:10,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 23:17:10,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 23:17:10,518 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 23:17:10,520 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 23:17:10,523 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 23:17:10,524 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 23:17:10,527 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 23:17:10,528 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 23:17:10,533 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 23:17:10,533 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 23:17:10,534 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 23:17:10,535 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 23:17:10,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 23:17:10,536 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 23:17:10,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 23:17:10,539 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 23:17:10,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 23:17:10,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 23:17:10,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 23:17:10,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 23:17:10,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 23:17:10,552 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 23:17:10,553 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 23:17:10,554 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 23:17:10,555 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 23:17:10,556 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 23:17:10,557 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 23:17:10,558 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 23:17:10,559 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 23:17:10,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 23:17:10,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 23:17:10,561 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 23:17:10,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 23:17:10,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 23:17:10,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 23:17:10,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 23:17:10,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 23:17:10,563 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-19 23:17:10,584 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 23:17:10,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 23:17:10,590 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 23:17:10,590 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 23:17:10,591 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 23:17:10,591 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 23:17:10,591 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 23:17:10,592 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 23:17:10,592 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 23:17:10,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 23:17:10,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 23:17:10,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 23:17:10,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 23:17:10,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 23:17:10,594 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 23:17:10,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 23:17:10,594 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 23:17:10,594 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 23:17:10,595 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 23:17:10,595 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 23:17:10,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 23:17:10,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:17:10,596 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 23:17:10,597 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 23:17:10,598 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 23:17:10,598 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 23:17:10,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 23:17:10,598 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 23:17:10,598 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 23:17:10,599 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 23:17:10,599 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0991342cd9e67cbadb964d86a1516812eb3aa45e84d4674c09b8e10a19f475c1 [2022-07-19 23:17:10,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 23:17:10,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 23:17:10,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 23:17:10,858 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 23:17:10,859 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 23:17:10,860 INFO L432 ainManager$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 [2022-07-19 23:17:10,912 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/024760cea/72cead2a1f2e4724a3b40b359a8e9176/FLAG20d106464 [2022-07-19 23:17:11,651 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 23:17:11,652 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 [2022-07-19 23:17:11,705 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/024760cea/72cead2a1f2e4724a3b40b359a8e9176/FLAG20d106464 [2022-07-19 23:17:11,937 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/024760cea/72cead2a1f2e4724a3b40b359a8e9176 [2022-07-19 23:17:11,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 23:17:11,940 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 23:17:11,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 23:17:11,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 23:17:11,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 23:17:11,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:17:11" (1/1) ... [2022-07-19 23:17:11,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62fb1cac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:17:11, skipping insertion in model container [2022-07-19 23:17:11,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:17:11" (1/1) ... [2022-07-19 23:17:11,954 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 23:17:12,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 23:17:14,324 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] [2022-07-19 23:17:14,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:17:14,485 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 23:17:14,850 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] [2022-07-19 23:17:14,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:17:14,948 INFO L208 MainTranslator]: Completed translation [2022-07-19 23:17:14,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:17:14 WrapperNode [2022-07-19 23:17:14,951 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 23:17:14,952 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 23:17:14,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 23:17:14,952 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 23:17:14,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:17:14" (1/1) ... [2022-07-19 23:17:15,058 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:17:14" (1/1) ... [2022-07-19 23:17:15,329 INFO L137 Inliner]: procedures = 326, calls = 4469, calls flagged for inlining = 131, calls inlined = 121, statements flattened = 9217 [2022-07-19 23:17:15,330 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 23:17:15,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 23:17:15,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 23:17:15,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 23:17:15,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:17:14" (1/1) ... [2022-07-19 23:17:15,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:17:14" (1/1) ... [2022-07-19 23:17:15,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:17:14" (1/1) ... [2022-07-19 23:17:15,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:17:14" (1/1) ... [2022-07-19 23:17:15,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:17:14" (1/1) ... [2022-07-19 23:17:15,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:17:14" (1/1) ... [2022-07-19 23:17:15,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:17:14" (1/1) ... [2022-07-19 23:17:15,761 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 23:17:15,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 23:17:15,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 23:17:15,763 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 23:17:15,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:17:14" (1/1) ... [2022-07-19 23:17:15,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:17:15,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:17:15,797 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) [2022-07-19 23:17:15,819 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 [2022-07-19 23:17:15,839 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_ohci [2022-07-19 23:17:15,840 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_ohci [2022-07-19 23:17:15,840 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-19 23:17:15,840 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-19 23:17:15,840 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-07-19 23:17:15,840 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-07-19 23:17:15,840 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2022-07-19 23:17:15,840 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2022-07-19 23:17:15,841 INFO L130 BoogieDeclarations]: Found specification of procedure start_ed_unlink [2022-07-19 23:17:15,841 INFO L138 BoogieDeclarations]: Found implementation of procedure start_ed_unlink [2022-07-19 23:17:15,841 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_status [2022-07-19 23:17:15,841 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_status [2022-07-19 23:17:15,841 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-07-19 23:17:15,841 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-07-19 23:17:15,841 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_suspend [2022-07-19 23:17:15,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_suspend [2022-07-19 23:17:15,842 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_alloc [2022-07-19 23:17:15,842 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_alloc [2022-07-19 23:17:15,842 INFO L130 BoogieDeclarations]: Found specification of procedure show_list [2022-07-19 23:17:15,842 INFO L138 BoogieDeclarations]: Found implementation of procedure show_list [2022-07-19 23:17:15,842 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_probe [2022-07-19 23:17:15,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_probe [2022-07-19 23:17:15,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-19 23:17:15,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-19 23:17:15,843 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-07-19 23:17:15,843 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-07-19 23:17:15,843 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpup [2022-07-19 23:17:15,843 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpup [2022-07-19 23:17:15,843 INFO L130 BoogieDeclarations]: Found specification of procedure hcfs2string [2022-07-19 23:17:15,843 INFO L138 BoogieDeclarations]: Found implementation of procedure hcfs2string [2022-07-19 23:17:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_zfmicro [2022-07-19 23:17:15,844 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_zfmicro [2022-07-19 23:17:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure usb_disabled [2022-07-19 23:17:15,844 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_disabled [2022-07-19 23:17:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_status_data [2022-07-19 23:17:15,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_status_data [2022-07-19 23:17:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_reset [2022-07-19 23:17:15,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_reset [2022-07-19 23:17:15,845 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_shutdown [2022-07-19 23:17:15,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_shutdown [2022-07-19 23:17:15,845 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-19 23:17:15,845 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-19 23:17:15,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-19 23:17:15,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-19 23:17:15,846 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_intr_mask [2022-07-19 23:17:15,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_intr_mask [2022-07-19 23:17:15,846 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_buffer [2022-07-19 23:17:15,846 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_buffer [2022-07-19 23:17:15,847 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_writel [2022-07-19 23:17:15,847 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_writel [2022-07-19 23:17:15,847 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-19 23:17:15,847 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-19 23:17:15,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-19 23:17:15,848 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-19 23:17:15,848 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hwPSWp [2022-07-19 23:17:15,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hwPSWp [2022-07-19 23:17:15,848 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_resume [2022-07-19 23:17:15,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_resume [2022-07-19 23:17:15,849 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_suspend [2022-07-19 23:17:15,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_suspend [2022-07-19 23:17:15,850 INFO L130 BoogieDeclarations]: Found specification of procedure debug_output [2022-07-19 23:17:15,850 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_output [2022-07-19 23:17:15,850 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-19 23:17:15,850 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-19 23:17:15,850 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-19 23:17:15,851 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-19 23:17:15,851 INFO L130 BoogieDeclarations]: Found specification of procedure ed_schedule [2022-07-19 23:17:15,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_schedule [2022-07-19 23:17:15,851 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hcd_init [2022-07-19 23:17:15,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hcd_init [2022-07-19 23:17:15,851 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_roothub [2022-07-19 23:17:15,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_roothub [2022-07-19 23:17:15,852 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2022-07-19 23:17:15,852 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2022-07-19 23:17:15,852 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-19 23:17:15,852 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-19 23:17:15,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 23:17:15,853 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_stop [2022-07-19 23:17:15,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_stop [2022-07-19 23:17:15,853 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-19 23:17:15,853 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-19 23:17:15,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-19 23:17:15,853 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2022-07-19 23:17:15,854 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2022-07-19 23:17:15,854 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_remove [2022-07-19 23:17:15,854 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_remove [2022-07-19 23:17:15,854 INFO L130 BoogieDeclarations]: Found specification of procedure check_ed [2022-07-19 23:17:15,854 INFO L138 BoogieDeclarations]: Found implementation of procedure check_ed [2022-07-19 23:17:15,854 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_restart [2022-07-19 23:17:15,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_restart [2022-07-19 23:17:15,855 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_nec [2022-07-19 23:17:15,855 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_nec [2022-07-19 23:17:15,855 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-19 23:17:15,856 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-19 23:17:15,856 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2022-07-19 23:17:15,856 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2022-07-19 23:17:15,856 INFO L130 BoogieDeclarations]: Found specification of procedure td_free [2022-07-19 23:17:15,857 INFO L138 BoogieDeclarations]: Found implementation of procedure td_free [2022-07-19 23:17:15,857 INFO L130 BoogieDeclarations]: Found specification of procedure broken_suspend [2022-07-19 23:17:15,857 INFO L138 BoogieDeclarations]: Found implementation of procedure broken_suspend [2022-07-19 23:17:15,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 23:17:15,858 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_resume [2022-07-19 23:17:15,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_resume [2022-07-19 23:17:15,858 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_platform_shutdown [2022-07-19 23:17:15,858 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_platform_shutdown [2022-07-19 23:17:15,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-19 23:17:15,858 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_portstatus [2022-07-19 23:17:15,859 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_portstatus [2022-07-19 23:17:15,859 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-07-19 23:17:15,859 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-07-19 23:17:15,859 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hc_died [2022-07-19 23:17:15,859 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hc_died [2022-07-19 23:17:15,860 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_remove [2022-07-19 23:17:15,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_remove [2022-07-19 23:17:15,860 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-07-19 23:17:15,860 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-07-19 23:17:15,860 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-19 23:17:15,861 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-19 23:17:15,861 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-07-19 23:17:15,863 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-07-19 23:17:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-19 23:17:15,864 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-19 23:17:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-19 23:17:15,866 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-19 23:17:15,866 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-19 23:17:15,866 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-19 23:17:15,866 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_resume [2022-07-19 23:17:15,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_resume [2022-07-19 23:17:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure ed_free [2022-07-19 23:17:15,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_free [2022-07-19 23:17:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-19 23:17:15,872 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-19 23:17:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2022-07-19 23:17:15,872 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2022-07-19 23:17:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_start [2022-07-19 23:17:15,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_start [2022-07-19 23:17:15,873 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump [2022-07-19 23:17:15,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump [2022-07-19 23:17:15,873 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_frame_no [2022-07-19 23:17:15,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_frame_no [2022-07-19 23:17:15,873 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-19 23:17:15,873 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-19 23:17:15,873 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-07-19 23:17:15,874 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-07-19 23:17:15,874 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-19 23:17:15,874 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-19 23:17:15,874 INFO L130 BoogieDeclarations]: Found specification of procedure sb800_prefetch [2022-07-19 23:17:15,874 INFO L138 BoogieDeclarations]: Found implementation of procedure sb800_prefetch [2022-07-19 23:17:15,874 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_control [2022-07-19 23:17:15,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_control [2022-07-19 23:17:15,874 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2022-07-19 23:17:15,874 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2022-07-19 23:17:15,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 23:17:15,875 INFO L130 BoogieDeclarations]: Found specification of procedure finish_urb [2022-07-19 23:17:15,875 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_urb [2022-07-19 23:17:15,875 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_suspend [2022-07-19 23:17:15,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_suspend [2022-07-19 23:17:15,875 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_a [2022-07-19 23:17:15,875 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_a [2022-07-19 23:17:15,876 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_irq [2022-07-19 23:17:15,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_irq [2022-07-19 23:17:15,876 INFO L130 BoogieDeclarations]: Found specification of procedure rh_state_string [2022-07-19 23:17:15,876 INFO L138 BoogieDeclarations]: Found implementation of procedure rh_state_string [2022-07-19 23:17:15,876 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_b [2022-07-19 23:17:15,876 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_b [2022-07-19 23:17:15,877 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_enqueue [2022-07-19 23:17:15,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_enqueue [2022-07-19 23:17:15,877 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_start_port_reset [2022-07-19 23:17:15,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_start_port_reset [2022-07-19 23:17:15,877 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_to_hcd [2022-07-19 23:17:15,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_to_hcd [2022-07-19 23:17:15,877 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_start [2022-07-19 23:17:15,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_start [2022-07-19 23:17:15,878 INFO L130 BoogieDeclarations]: Found specification of procedure td_alloc [2022-07-19 23:17:15,878 INFO L138 BoogieDeclarations]: Found implementation of procedure td_alloc [2022-07-19 23:17:15,878 INFO L130 BoogieDeclarations]: Found specification of procedure find_head [2022-07-19 23:17:15,878 INFO L138 BoogieDeclarations]: Found implementation of procedure find_head [2022-07-19 23:17:15,878 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-19 23:17:15,879 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-19 23:17:15,879 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_run [2022-07-19 23:17:15,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_run [2022-07-19 23:17:15,879 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-07-19 23:17:15,879 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-07-19 23:17:15,879 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_endpoint_disable [2022-07-19 23:17:15,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_endpoint_disable [2022-07-19 23:17:15,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 23:17:15,880 INFO L130 BoogieDeclarations]: Found specification of procedure takeback_td [2022-07-19 23:17:15,880 INFO L138 BoogieDeclarations]: Found implementation of procedure takeback_td [2022-07-19 23:17:15,880 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdprefetch [2022-07-19 23:17:15,880 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdprefetch [2022-07-19 23:17:15,880 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-19 23:17:15,880 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-19 23:17:15,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-19 23:17:15,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-19 23:17:15,881 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_readl [2022-07-19 23:17:15,881 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_readl [2022-07-19 23:17:15,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 23:17:15,881 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2022-07-19 23:17:15,881 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2022-07-19 23:17:15,881 INFO L130 BoogieDeclarations]: Found specification of procedure dl_done_list [2022-07-19 23:17:15,881 INFO L138 BoogieDeclarations]: Found implementation of procedure dl_done_list [2022-07-19 23:17:15,881 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_poll_rh_status [2022-07-19 23:17:15,881 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_poll_rh_status [2022-07-19 23:17:15,882 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-19 23:17:15,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-19 23:17:15,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 23:17:15,882 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_reinit [2022-07-19 23:17:15,882 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_reinit [2022-07-19 23:17:15,882 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2022-07-19 23:17:15,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2022-07-19 23:17:15,882 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-19 23:17:15,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-19 23:17:15,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-19 23:17:15,883 INFO L130 BoogieDeclarations]: Found specification of procedure td_done [2022-07-19 23:17:15,883 INFO L138 BoogieDeclarations]: Found implementation of procedure td_done [2022-07-19 23:17:15,883 INFO L130 BoogieDeclarations]: Found specification of procedure td_fill [2022-07-19 23:17:15,883 INFO L138 BoogieDeclarations]: Found implementation of procedure td_fill [2022-07-19 23:17:15,883 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_dequeue [2022-07-19 23:17:15,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_dequeue [2022-07-19 23:17:15,884 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-19 23:17:15,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-19 23:17:15,884 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_init [2022-07-19 23:17:15,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_init [2022-07-19 23:17:15,884 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-19 23:17:15,884 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-19 23:17:15,884 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc16 [2022-07-19 23:17:15,884 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc16 [2022-07-19 23:17:15,884 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-19 23:17:15,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-19 23:17:15,885 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdiso [2022-07-19 23:17:15,885 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdiso [2022-07-19 23:17:15,885 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2022-07-19 23:17:15,885 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2022-07-19 23:17:15,885 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-19 23:17:15,885 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-19 23:17:15,885 INFO L130 BoogieDeclarations]: Found specification of procedure ed_deschedule [2022-07-19 23:17:15,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_deschedule [2022-07-19 23:17:15,886 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_resume_root_hub [2022-07-19 23:17:15,886 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_resume_root_hub [2022-07-19 23:17:15,886 INFO L130 BoogieDeclarations]: Found specification of procedure urb_free_priv [2022-07-19 23:17:15,886 INFO L138 BoogieDeclarations]: Found implementation of procedure urb_free_priv [2022-07-19 23:17:15,886 INFO L130 BoogieDeclarations]: Found specification of procedure finish_unlinks [2022-07-19 23:17:15,886 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_unlinks [2022-07-19 23:17:15,886 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpu [2022-07-19 23:17:15,887 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpu [2022-07-19 23:17:15,887 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2022-07-19 23:17:15,891 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2022-07-19 23:17:15,891 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_status [2022-07-19 23:17:15,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_status [2022-07-19 23:17:15,891 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_print_eds [2022-07-19 23:17:15,891 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_print_eds [2022-07-19 23:17:15,891 INFO L130 BoogieDeclarations]: Found specification of procedure debug_close [2022-07-19 23:17:15,891 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_close [2022-07-19 23:17:15,891 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_get_frame [2022-07-19 23:17:15,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_get_frame [2022-07-19 23:17:15,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2022-07-19 23:17:15,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2022-07-19 23:17:15,893 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-19 23:17:15,893 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-19 23:17:15,893 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-19 23:17:15,894 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-19 23:17:15,894 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc32 [2022-07-19 23:17:15,894 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc32 [2022-07-19 23:17:15,894 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-19 23:17:15,894 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-19 23:17:15,894 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_usb_reset [2022-07-19 23:17:15,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_usb_reset [2022-07-19 23:17:15,894 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_resume [2022-07-19 23:17:15,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_resume [2022-07-19 23:17:15,895 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-19 23:17:15,895 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-19 23:17:15,895 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-19 23:17:15,895 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-19 23:17:15,895 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_suspend [2022-07-19 23:17:15,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_suspend [2022-07-19 23:17:15,895 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_reset [2022-07-19 23:17:15,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_reset [2022-07-19 23:17:15,896 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_shutdown [2022-07-19 23:17:15,896 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_shutdown [2022-07-19 23:17:15,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 23:17:15,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 23:17:15,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 23:17:15,896 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2022-07-19 23:17:15,896 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2022-07-19 23:17:16,905 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 23:17:16,909 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 23:17:24,218 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 23:17:24,242 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 23:17:24,243 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-19 23:17:24,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:17:24 BoogieIcfgContainer [2022-07-19 23:17:24,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 23:17:24,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 23:17:24,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 23:17:24,255 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 23:17:24,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:17:11" (1/3) ... [2022-07-19 23:17:24,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@168dc538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:17:24, skipping insertion in model container [2022-07-19 23:17:24,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:17:14" (2/3) ... [2022-07-19 23:17:24,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@168dc538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:17:24, skipping insertion in model container [2022-07-19 23:17:24,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:17:24" (3/3) ... [2022-07-19 23:17:24,259 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2022-07-19 23:17:24,274 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 23:17:24,275 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 23:17:24,382 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 23:17:24,389 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@1ba5e25f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@22c2c4f7 [2022-07-19 23:17:24,389 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 23:17:24,402 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) [2022-07-19 23:17:24,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-19 23:17:24,411 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:17:24,411 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:17:24,412 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:17:24,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:17:24,416 INFO L85 PathProgramCache]: Analyzing trace with hash -358052195, now seen corresponding path program 1 times [2022-07-19 23:17:24,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:17:24,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581036472] [2022-07-19 23:17:24,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:17:24,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:17:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:17:25,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:17:25,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:17:25,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581036472] [2022-07-19 23:17:25,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581036472] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:17:25,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:17:25,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:17:25,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925621601] [2022-07-19 23:17:25,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:17:25,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:17:25,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:17:25,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:17:25,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:17:25,233 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) [2022-07-19 23:17:25,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:17:25,838 INFO L93 Difference]: Finished difference Result 10492 states and 16246 transitions. [2022-07-19 23:17:25,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:17:25,841 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 [2022-07-19 23:17:25,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:17:25,930 INFO L225 Difference]: With dead ends: 10492 [2022-07-19 23:17:25,930 INFO L226 Difference]: Without dead ends: 6969 [2022-07-19 23:17:25,978 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 [2022-07-19 23:17:25,981 INFO L413 NwaCegarLoop]: 6969 mSDtfsCounter, 5154 mSDsluCounter, 5179 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 23:17:25,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5154 Valid, 12148 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 23:17:26,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6969 states. [2022-07-19 23:17:26,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6969 to 6955. [2022-07-19 23:17:26,395 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) [2022-07-19 23:17:26,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6955 states to 6955 states and 10325 transitions. [2022-07-19 23:17:26,454 INFO L78 Accepts]: Start accepts. Automaton has 6955 states and 10325 transitions. Word has length 14 [2022-07-19 23:17:26,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:17:26,455 INFO L495 AbstractCegarLoop]: Abstraction has 6955 states and 10325 transitions. [2022-07-19 23:17:26,455 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) [2022-07-19 23:17:26,455 INFO L276 IsEmpty]: Start isEmpty. Operand 6955 states and 10325 transitions. [2022-07-19 23:17:26,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-19 23:17:26,459 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:17:26,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:17:26,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 23:17:26,459 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:17:26,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:17:26,460 INFO L85 PathProgramCache]: Analyzing trace with hash -687216903, now seen corresponding path program 1 times [2022-07-19 23:17:26,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:17:26,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333641274] [2022-07-19 23:17:26,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:17:26,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:17:26,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:17:26,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:17:26,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:17:26,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333641274] [2022-07-19 23:17:26,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333641274] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:17:26,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:17:26,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:17:26,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547890688] [2022-07-19 23:17:26,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:17:26,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:17:26,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:17:26,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:17:26,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:17:26,719 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) [2022-07-19 23:17:27,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:17:27,280 INFO L93 Difference]: Finished difference Result 20815 states and 30895 transitions. [2022-07-19 23:17:27,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:17:27,280 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 [2022-07-19 23:17:27,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:17:27,399 INFO L225 Difference]: With dead ends: 20815 [2022-07-19 23:17:27,399 INFO L226 Difference]: Without dead ends: 13863 [2022-07-19 23:17:27,450 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 [2022-07-19 23:17:27,451 INFO L413 NwaCegarLoop]: 6437 mSDtfsCounter, 5146 mSDsluCounter, 5173 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5146 SdHoareTripleChecker+Valid, 11610 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 23:17:27,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5146 Valid, 11610 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 23:17:27,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13863 states. [2022-07-19 23:17:27,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13863 to 13849. [2022-07-19 23:17:27,962 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) [2022-07-19 23:17:28,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13849 states to 13849 states and 20555 transitions. [2022-07-19 23:17:28,051 INFO L78 Accepts]: Start accepts. Automaton has 13849 states and 20555 transitions. Word has length 16 [2022-07-19 23:17:28,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:17:28,051 INFO L495 AbstractCegarLoop]: Abstraction has 13849 states and 20555 transitions. [2022-07-19 23:17:28,052 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) [2022-07-19 23:17:28,052 INFO L276 IsEmpty]: Start isEmpty. Operand 13849 states and 20555 transitions. [2022-07-19 23:17:28,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-19 23:17:28,057 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:17:28,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:17:28,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 23:17:28,057 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:17:28,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:17:28,065 INFO L85 PathProgramCache]: Analyzing trace with hash 360574127, now seen corresponding path program 1 times [2022-07-19 23:17:28,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:17:28,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193821920] [2022-07-19 23:17:28,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:17:28,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:17:28,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:17:28,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:17:28,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:17:28,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193821920] [2022-07-19 23:17:28,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193821920] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:17:28,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:17:28,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:17:28,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975785569] [2022-07-19 23:17:28,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:17:28,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:17:28,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:17:28,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:17:28,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:17:28,446 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) [2022-07-19 23:17:29,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:17:29,317 INFO L93 Difference]: Finished difference Result 41395 states and 61442 transitions. [2022-07-19 23:17:29,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:17:29,318 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 [2022-07-19 23:17:29,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:17:29,614 INFO L225 Difference]: With dead ends: 41395 [2022-07-19 23:17:29,614 INFO L226 Difference]: Without dead ends: 27549 [2022-07-19 23:17:29,726 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 [2022-07-19 23:17:29,729 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, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 23:17:29,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5144 Valid, 12796 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 23:17:29,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27549 states. [2022-07-19 23:17:30,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27549 to 27535. [2022-07-19 23:17:30,852 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) [2022-07-19 23:17:31,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27535 states to 27535 states and 40870 transitions. [2022-07-19 23:17:31,052 INFO L78 Accepts]: Start accepts. Automaton has 27535 states and 40870 transitions. Word has length 18 [2022-07-19 23:17:31,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:17:31,053 INFO L495 AbstractCegarLoop]: Abstraction has 27535 states and 40870 transitions. [2022-07-19 23:17:31,053 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) [2022-07-19 23:17:31,054 INFO L276 IsEmpty]: Start isEmpty. Operand 27535 states and 40870 transitions. [2022-07-19 23:17:31,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-19 23:17:31,060 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:17:31,060 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] [2022-07-19 23:17:31,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 23:17:31,060 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:17:31,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:17:31,061 INFO L85 PathProgramCache]: Analyzing trace with hash 230013637, now seen corresponding path program 1 times [2022-07-19 23:17:31,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:17:31,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947285400] [2022-07-19 23:17:31,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:17:31,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:17:31,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:17:31,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 23:17:31,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:17:31,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:17:31,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:17:31,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947285400] [2022-07-19 23:17:31,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947285400] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:17:31,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:17:31,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:17:31,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177725123] [2022-07-19 23:17:31,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:17:31,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:17:31,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:17:31,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:17:31,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:17:31,474 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) [2022-07-19 23:17:32,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:17:32,015 INFO L93 Difference]: Finished difference Result 27558 states and 40898 transitions. [2022-07-19 23:17:32,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:17:32,016 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 [2022-07-19 23:17:32,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:17:32,254 INFO L225 Difference]: With dead ends: 27558 [2022-07-19 23:17:32,254 INFO L226 Difference]: Without dead ends: 27547 [2022-07-19 23:17:32,291 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 [2022-07-19 23:17:32,292 INFO L413 NwaCegarLoop]: 5203 mSDtfsCounter, 5186 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 23:17:32,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5186 Valid, 5216 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 23:17:32,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27547 states. [2022-07-19 23:17:33,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27547 to 27536. [2022-07-19 23:17:33,317 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) [2022-07-19 23:17:33,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27536 states to 27536 states and 40871 transitions. [2022-07-19 23:17:33,486 INFO L78 Accepts]: Start accepts. Automaton has 27536 states and 40871 transitions. Word has length 29 [2022-07-19 23:17:33,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:17:33,487 INFO L495 AbstractCegarLoop]: Abstraction has 27536 states and 40871 transitions. [2022-07-19 23:17:33,487 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) [2022-07-19 23:17:33,487 INFO L276 IsEmpty]: Start isEmpty. Operand 27536 states and 40871 transitions. [2022-07-19 23:17:33,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-19 23:17:33,492 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:17:33,492 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] [2022-07-19 23:17:33,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 23:17:33,493 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:17:33,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:17:33,493 INFO L85 PathProgramCache]: Analyzing trace with hash 287271939, now seen corresponding path program 1 times [2022-07-19 23:17:33,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:17:33,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389358799] [2022-07-19 23:17:33,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:17:33,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:17:33,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:17:33,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 23:17:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:17:33,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:17:33,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:17:33,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389358799] [2022-07-19 23:17:33,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389358799] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:17:33,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:17:33,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:17:33,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513580595] [2022-07-19 23:17:33,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:17:33,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:17:33,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:17:33,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:17:33,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:17:33,907 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) [2022-07-19 23:17:34,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:17:34,571 INFO L93 Difference]: Finished difference Result 27538 states and 40872 transitions. [2022-07-19 23:17:34,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:17:34,571 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 [2022-07-19 23:17:34,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:17:34,874 INFO L225 Difference]: With dead ends: 27538 [2022-07-19 23:17:34,874 INFO L226 Difference]: Without dead ends: 27535 [2022-07-19 23:17:34,891 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 [2022-07-19 23:17:34,892 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 [2022-07-19 23:17:34,892 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] [2022-07-19 23:17:34,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27535 states. [2022-07-19 23:17:35,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27535 to 27535. [2022-07-19 23:17:35,823 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) [2022-07-19 23:17:36,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27535 states to 27535 states and 40869 transitions. [2022-07-19 23:17:36,003 INFO L78 Accepts]: Start accepts. Automaton has 27535 states and 40869 transitions. Word has length 29 [2022-07-19 23:17:36,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:17:36,004 INFO L495 AbstractCegarLoop]: Abstraction has 27535 states and 40869 transitions. [2022-07-19 23:17:36,004 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) [2022-07-19 23:17:36,005 INFO L276 IsEmpty]: Start isEmpty. Operand 27535 states and 40869 transitions. [2022-07-19 23:17:36,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-19 23:17:36,008 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:17:36,008 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] [2022-07-19 23:17:36,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 23:17:36,009 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:17:36,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:17:36,009 INFO L85 PathProgramCache]: Analyzing trace with hash 314027652, now seen corresponding path program 1 times [2022-07-19 23:17:36,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:17:36,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685724092] [2022-07-19 23:17:36,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:17:36,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:17:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:17:36,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 23:17:36,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:17:36,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:17:36,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:17:36,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685724092] [2022-07-19 23:17:36,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685724092] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:17:36,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:17:36,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:17:36,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896915321] [2022-07-19 23:17:36,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:17:36,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:17:36,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:17:36,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:17:36,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:17:36,299 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) [2022-07-19 23:17:37,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:17:37,164 INFO L93 Difference]: Finished difference Result 27537 states and 40870 transitions. [2022-07-19 23:17:37,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:17:37,164 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 [2022-07-19 23:17:37,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:17:37,352 INFO L225 Difference]: With dead ends: 27537 [2022-07-19 23:17:37,352 INFO L226 Difference]: Without dead ends: 27534 [2022-07-19 23:17:37,374 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 [2022-07-19 23:17:37,377 INFO L413 NwaCegarLoop]: 5186 mSDtfsCounter, 5163 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 23:17:37,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5163 Valid, 5186 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 23:17:37,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27534 states. [2022-07-19 23:17:38,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27534 to 27534. [2022-07-19 23:17:38,237 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) [2022-07-19 23:17:38,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27534 states to 27534 states and 40867 transitions. [2022-07-19 23:17:38,425 INFO L78 Accepts]: Start accepts. Automaton has 27534 states and 40867 transitions. Word has length 30 [2022-07-19 23:17:38,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:17:38,426 INFO L495 AbstractCegarLoop]: Abstraction has 27534 states and 40867 transitions. [2022-07-19 23:17:38,426 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) [2022-07-19 23:17:38,426 INFO L276 IsEmpty]: Start isEmpty. Operand 27534 states and 40867 transitions. [2022-07-19 23:17:38,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-19 23:17:38,432 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:17:38,432 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] [2022-07-19 23:17:38,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 23:17:38,432 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:17:38,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:17:38,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1143459622, now seen corresponding path program 1 times [2022-07-19 23:17:38,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:17:38,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334434739] [2022-07-19 23:17:38,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:17:38,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:17:38,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:17:39,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 23:17:39,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:17:39,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:17:39,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:17:39,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334434739] [2022-07-19 23:17:39,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334434739] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:17:39,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:17:39,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:17:39,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47810188] [2022-07-19 23:17:39,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:17:39,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:17:39,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:17:39,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:17:39,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:17:39,085 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) [2022-07-19 23:17:40,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:17:40,066 INFO L93 Difference]: Finished difference Result 42791 states and 62688 transitions. [2022-07-19 23:17:40,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:17:40,067 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 [2022-07-19 23:17:40,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:17:40,399 INFO L225 Difference]: With dead ends: 42791 [2022-07-19 23:17:40,400 INFO L226 Difference]: Without dead ends: 42787 [2022-07-19 23:17:40,438 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 [2022-07-19 23:17:40,440 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 [2022-07-19 23:17:40,440 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] [2022-07-19 23:17:40,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42787 states. [2022-07-19 23:17:41,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42787 to 42785. [2022-07-19 23:17:41,850 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) [2022-07-19 23:17:42,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42785 states to 42785 states and 62676 transitions. [2022-07-19 23:17:42,023 INFO L78 Accepts]: Start accepts. Automaton has 42785 states and 62676 transitions. Word has length 31 [2022-07-19 23:17:42,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:17:42,024 INFO L495 AbstractCegarLoop]: Abstraction has 42785 states and 62676 transitions. [2022-07-19 23:17:42,024 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) [2022-07-19 23:17:42,024 INFO L276 IsEmpty]: Start isEmpty. Operand 42785 states and 62676 transitions. [2022-07-19 23:17:42,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-19 23:17:42,028 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:17:42,028 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] [2022-07-19 23:17:42,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 23:17:42,028 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:17:42,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:17:42,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1086051783, now seen corresponding path program 1 times [2022-07-19 23:17:42,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:17:42,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541229072] [2022-07-19 23:17:42,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:17:42,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:17:42,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:17:42,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 23:17:42,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:17:42,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:17:42,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:17:42,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541229072] [2022-07-19 23:17:42,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541229072] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:17:42,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:17:42,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:17:42,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504271728] [2022-07-19 23:17:42,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:17:42,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:17:42,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:17:42,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:17:42,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:17:42,330 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) [2022-07-19 23:17:43,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:17:43,260 INFO L93 Difference]: Finished difference Result 42787 states and 62677 transitions. [2022-07-19 23:17:43,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:17:43,267 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 [2022-07-19 23:17:43,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:17:43,562 INFO L225 Difference]: With dead ends: 42787 [2022-07-19 23:17:43,563 INFO L226 Difference]: Without dead ends: 42698 [2022-07-19 23:17:43,619 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 [2022-07-19 23:17:43,620 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 23:17:43,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5155 Valid, 5181 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 23:17:43,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42698 states. [2022-07-19 23:17:45,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42698 to 42697. [2022-07-19 23:17:45,061 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) [2022-07-19 23:17:45,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42697 states to 42697 states and 62548 transitions. [2022-07-19 23:17:45,397 INFO L78 Accepts]: Start accepts. Automaton has 42697 states and 62548 transitions. Word has length 32 [2022-07-19 23:17:45,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:17:45,398 INFO L495 AbstractCegarLoop]: Abstraction has 42697 states and 62548 transitions. [2022-07-19 23:17:45,398 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) [2022-07-19 23:17:45,398 INFO L276 IsEmpty]: Start isEmpty. Operand 42697 states and 62548 transitions. [2022-07-19 23:17:45,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-19 23:17:45,411 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:17:45,411 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] [2022-07-19 23:17:45,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 23:17:45,412 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:17:45,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:17:45,412 INFO L85 PathProgramCache]: Analyzing trace with hash -481476166, now seen corresponding path program 1 times [2022-07-19 23:17:45,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:17:45,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285236313] [2022-07-19 23:17:45,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:17:45,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:17:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:17:45,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 23:17:45,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:17:45,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 23:17:45,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:17:45,652 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:17:45,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:17:45,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285236313] [2022-07-19 23:17:45,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285236313] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:17:45,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:17:45,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:17:45,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492569374] [2022-07-19 23:17:45,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:17:45,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:17:45,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:17:45,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:17:45,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:17:45,655 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) [2022-07-19 23:17:46,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:17:46,908 INFO L93 Difference]: Finished difference Result 85415 states and 125125 transitions. [2022-07-19 23:17:46,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 23:17:46,909 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 [2022-07-19 23:17:46,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:17:47,138 INFO L225 Difference]: With dead ends: 85415 [2022-07-19 23:17:47,138 INFO L226 Difference]: Without dead ends: 42697 [2022-07-19 23:17:47,466 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 [2022-07-19 23:17:47,468 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, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 23:17:47,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 15471 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 23:17:47,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42697 states. [2022-07-19 23:17:48,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42697 to 42697. [2022-07-19 23:17:48,651 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) [2022-07-19 23:17:48,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42697 states to 42697 states and 62540 transitions. [2022-07-19 23:17:48,863 INFO L78 Accepts]: Start accepts. Automaton has 42697 states and 62540 transitions. Word has length 48 [2022-07-19 23:17:48,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:17:48,864 INFO L495 AbstractCegarLoop]: Abstraction has 42697 states and 62540 transitions. [2022-07-19 23:17:48,864 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) [2022-07-19 23:17:48,864 INFO L276 IsEmpty]: Start isEmpty. Operand 42697 states and 62540 transitions. [2022-07-19 23:17:48,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-19 23:17:48,886 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:17:48,887 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] [2022-07-19 23:17:48,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 23:17:48,888 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:17:48,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:17:48,888 INFO L85 PathProgramCache]: Analyzing trace with hash -766261442, now seen corresponding path program 1 times [2022-07-19 23:17:48,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:17:48,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815948490] [2022-07-19 23:17:48,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:17:48,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:17:49,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:17:49,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 23:17:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:17:49,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 23:17:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:17:49,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-19 23:17:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:17:49,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:17:49,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:17:49,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:17:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:17:49,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:17:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:17:49,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 23:17:49,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:17:49,449 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:17:49,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:17:49,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815948490] [2022-07-19 23:17:49,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815948490] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:17:49,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:17:49,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:17:49,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710794637] [2022-07-19 23:17:49,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:17:49,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:17:49,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:17:49,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:17:49,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:17:49,453 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) [2022-07-19 23:17:57,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:17:57,948 INFO L93 Difference]: Finished difference Result 115753 states and 171080 transitions. [2022-07-19 23:17:57,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:17:57,948 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 [2022-07-19 23:17:57,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:17:58,526 INFO L225 Difference]: With dead ends: 115753 [2022-07-19 23:17:58,526 INFO L226 Difference]: Without dead ends: 73059 [2022-07-19 23:17:58,667 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 [2022-07-19 23:17:58,668 INFO L413 NwaCegarLoop]: 9986 mSDtfsCounter, 6149 mSDsluCounter, 9343 mSDsCounter, 0 mSdLazyCounter, 3495 mSolverCounterSat, 1839 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6972 SdHoareTripleChecker+Valid, 19329 SdHoareTripleChecker+Invalid, 5334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1839 IncrementalHoareTripleChecker+Valid, 3495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-07-19 23:17:58,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6972 Valid, 19329 Invalid, 5334 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1839 Valid, 3495 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-07-19 23:17:58,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73059 states. [2022-07-19 23:18:00,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73059 to 62920. [2022-07-19 23:18:00,958 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) [2022-07-19 23:18:01,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62920 states to 62920 states and 92199 transitions. [2022-07-19 23:18:01,536 INFO L78 Accepts]: Start accepts. Automaton has 62920 states and 92199 transitions. Word has length 77 [2022-07-19 23:18:01,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:18:01,536 INFO L495 AbstractCegarLoop]: Abstraction has 62920 states and 92199 transitions. [2022-07-19 23:18:01,536 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) [2022-07-19 23:18:01,536 INFO L276 IsEmpty]: Start isEmpty. Operand 62920 states and 92199 transitions. [2022-07-19 23:18:01,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-19 23:18:01,553 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:18:01,553 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] [2022-07-19 23:18:01,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-19 23:18:01,553 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:18:01,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:18:01,554 INFO L85 PathProgramCache]: Analyzing trace with hash -465588126, now seen corresponding path program 1 times [2022-07-19 23:18:01,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:18:01,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536619273] [2022-07-19 23:18:01,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:18:01,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:18:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:01,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 23:18:01,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:01,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 23:18:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:01,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-19 23:18:01,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:01,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:18:01,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:01,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:18:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:01,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:18:01,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:01,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-19 23:18:01,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:01,877 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:18:01,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:18:01,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536619273] [2022-07-19 23:18:01,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536619273] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:18:01,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:18:01,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:18:01,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279219331] [2022-07-19 23:18:01,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:18:01,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:18:01,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:18:01,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:18:01,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:18:01,880 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) [2022-07-19 23:18:11,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:18:11,282 INFO L93 Difference]: Finished difference Result 169908 states and 251255 transitions. [2022-07-19 23:18:11,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:18:11,283 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 [2022-07-19 23:18:11,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:18:12,240 INFO L225 Difference]: With dead ends: 169908 [2022-07-19 23:18:12,240 INFO L226 Difference]: Without dead ends: 106991 [2022-07-19 23:18:12,481 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 [2022-07-19 23:18:12,481 INFO L413 NwaCegarLoop]: 10006 mSDtfsCounter, 6150 mSDsluCounter, 9362 mSDsCounter, 0 mSdLazyCounter, 3495 mSolverCounterSat, 1840 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6969 SdHoareTripleChecker+Valid, 19368 SdHoareTripleChecker+Invalid, 5335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1840 IncrementalHoareTripleChecker+Valid, 3495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-07-19 23:18:12,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6969 Valid, 19368 Invalid, 5335 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1840 Valid, 3495 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-07-19 23:18:12,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106991 states. [2022-07-19 23:18:15,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106991 to 92134. [2022-07-19 23:18:15,622 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) [2022-07-19 23:18:16,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92134 states to 92134 states and 135087 transitions. [2022-07-19 23:18:16,294 INFO L78 Accepts]: Start accepts. Automaton has 92134 states and 135087 transitions. Word has length 75 [2022-07-19 23:18:16,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:18:16,295 INFO L495 AbstractCegarLoop]: Abstraction has 92134 states and 135087 transitions. [2022-07-19 23:18:16,295 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) [2022-07-19 23:18:16,295 INFO L276 IsEmpty]: Start isEmpty. Operand 92134 states and 135087 transitions. [2022-07-19 23:18:16,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-19 23:18:16,311 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:18:16,311 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] [2022-07-19 23:18:16,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-19 23:18:16,311 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:18:16,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:18:16,312 INFO L85 PathProgramCache]: Analyzing trace with hash -159959948, now seen corresponding path program 1 times [2022-07-19 23:18:16,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:18:16,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940033480] [2022-07-19 23:18:16,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:18:16,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:18:16,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:16,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 23:18:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:16,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 23:18:16,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:16,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-19 23:18:16,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:16,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:18:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:16,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:18:16,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:16,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:18:16,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:16,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-19 23:18:16,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:16,582 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:18:16,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:18:16,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940033480] [2022-07-19 23:18:16,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940033480] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:18:16,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:18:16,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:18:16,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355608626] [2022-07-19 23:18:16,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:18:16,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:18:16,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:18:16,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:18:16,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:18:16,585 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) [2022-07-19 23:18:27,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:18:27,386 INFO L93 Difference]: Finished difference Result 247430 states and 366180 transitions. [2022-07-19 23:18:27,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:18:27,386 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 [2022-07-19 23:18:27,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:18:28,507 INFO L225 Difference]: With dead ends: 247430 [2022-07-19 23:18:28,507 INFO L226 Difference]: Without dead ends: 155299 [2022-07-19 23:18:29,168 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 [2022-07-19 23:18:29,169 INFO L413 NwaCegarLoop]: 9915 mSDtfsCounter, 6194 mSDsluCounter, 9332 mSDsCounter, 0 mSdLazyCounter, 3496 mSolverCounterSat, 1851 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7014 SdHoareTripleChecker+Valid, 19247 SdHoareTripleChecker+Invalid, 5347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1851 IncrementalHoareTripleChecker+Valid, 3496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-07-19 23:18:29,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7014 Valid, 19247 Invalid, 5347 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1851 Valid, 3496 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-07-19 23:18:29,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155299 states. [2022-07-19 23:18:33,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155299 to 133715. [2022-07-19 23:18:34,108 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) [2022-07-19 23:18:34,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133715 states to 133715 states and 196222 transitions. [2022-07-19 23:18:34,882 INFO L78 Accepts]: Start accepts. Automaton has 133715 states and 196222 transitions. Word has length 79 [2022-07-19 23:18:34,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:18:34,883 INFO L495 AbstractCegarLoop]: Abstraction has 133715 states and 196222 transitions. [2022-07-19 23:18:34,883 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) [2022-07-19 23:18:34,883 INFO L276 IsEmpty]: Start isEmpty. Operand 133715 states and 196222 transitions. [2022-07-19 23:18:34,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-19 23:18:34,922 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:18:34,922 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] [2022-07-19 23:18:34,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-19 23:18:34,922 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:18:34,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:18:34,923 INFO L85 PathProgramCache]: Analyzing trace with hash -646528785, now seen corresponding path program 1 times [2022-07-19 23:18:34,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:18:34,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836894898] [2022-07-19 23:18:34,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:18:34,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:18:35,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:35,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 23:18:35,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:35,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 23:18:35,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:35,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-19 23:18:35,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:35,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:18:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:35,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:18:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:35,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:18:35,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:35,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-19 23:18:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:35,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:18:35,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:35,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:18:35,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:35,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:18:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:35,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:18:35,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:35,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-19 23:18:35,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:18:35,795 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-19 23:18:35,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:18:35,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836894898] [2022-07-19 23:18:35,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836894898] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:18:35,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:18:35,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 23:18:35,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731005727] [2022-07-19 23:18:35,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:18:35,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 23:18:35,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:18:35,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 23:18:35,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:18:35,797 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)