./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 c3fed411 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-tmp.no-commuhash-c3fed41 [2021-12-16 03:52:36,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 03:52:36,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 03:52:36,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 03:52:36,643 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 03:52:36,644 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 03:52:36,645 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 03:52:36,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 03:52:36,651 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 03:52:36,652 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 03:52:36,653 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 03:52:36,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 03:52:36,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 03:52:36,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 03:52:36,658 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 03:52:36,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 03:52:36,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 03:52:36,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 03:52:36,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 03:52:36,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 03:52:36,674 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 03:52:36,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 03:52:36,678 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 03:52:36,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 03:52:36,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 03:52:36,682 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 03:52:36,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 03:52:36,683 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 03:52:36,684 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 03:52:36,685 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 03:52:36,685 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 03:52:36,686 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 03:52:36,686 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 03:52:36,687 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 03:52:36,688 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 03:52:36,689 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 03:52:36,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 03:52:36,690 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 03:52:36,690 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 03:52:36,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 03:52:36,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 03:52:36,692 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 03:52:36,713 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 03:52:36,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 03:52:36,714 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 03:52:36,714 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 03:52:36,715 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 03:52:36,715 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 03:52:36,716 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 03:52:36,716 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 03:52:36,716 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 03:52:36,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 03:52:36,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 03:52:36,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 03:52:36,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 03:52:36,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 03:52:36,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 03:52:36,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 03:52:36,718 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 03:52:36,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 03:52:36,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 03:52:36,718 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 03:52:36,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 03:52:36,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:52:36,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 03:52:36,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 03:52:36,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 03:52:36,719 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 03:52:36,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 03:52:36,720 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 03:52:36,720 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 03:52:36,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 03:52:36,720 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 03:52:36,720 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0991342cd9e67cbadb964d86a1516812eb3aa45e84d4674c09b8e10a19f475c1 [2021-12-16 03:52:36,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 03:52:36,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 03:52:36,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 03:52:36,977 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 03:52:36,978 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 03:52:36,979 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2021-12-16 03:52:37,052 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78823bc09/557ad8701f6346b6a91b7a60d26dec5f/FLAG5400a9dde [2021-12-16 03:52:37,746 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 03:52:37,747 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2021-12-16 03:52:37,798 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78823bc09/557ad8701f6346b6a91b7a60d26dec5f/FLAG5400a9dde [2021-12-16 03:52:38,051 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78823bc09/557ad8701f6346b6a91b7a60d26dec5f [2021-12-16 03:52:38,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 03:52:38,056 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 03:52:38,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 03:52:38,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 03:52:38,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 03:52:38,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:52:38" (1/1) ... [2021-12-16 03:52:38,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46c17e2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:52:38, skipping insertion in model container [2021-12-16 03:52:38,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:52:38" (1/1) ... [2021-12-16 03:52:38,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 03:52:38,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 03:52:40,137 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i[339370,339383] [2021-12-16 03:52:40,271 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:52:40,297 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 03:52:40,606 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i[339370,339383] [2021-12-16 03:52:40,615 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:52:40,704 INFO L208 MainTranslator]: Completed translation [2021-12-16 03:52:40,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:52:40 WrapperNode [2021-12-16 03:52:40,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 03:52:40,707 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 03:52:40,707 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 03:52:40,707 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 03:52:40,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:52:40" (1/1) ... [2021-12-16 03:52:40,842 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:52:40" (1/1) ... [2021-12-16 03:52:41,101 INFO L137 Inliner]: procedures = 326, calls = 4469, calls flagged for inlining = 131, calls inlined = 121, statements flattened = 8803 [2021-12-16 03:52:41,101 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 03:52:41,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 03:52:41,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 03:52:41,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 03:52:41,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:52:40" (1/1) ... [2021-12-16 03:52:41,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:52:40" (1/1) ... [2021-12-16 03:52:41,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:52:40" (1/1) ... [2021-12-16 03:52:41,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:52:40" (1/1) ... [2021-12-16 03:52:41,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:52:40" (1/1) ... [2021-12-16 03:52:41,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:52:40" (1/1) ... [2021-12-16 03:52:41,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:52:40" (1/1) ... [2021-12-16 03:52:41,499 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 03:52:41,500 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 03:52:41,500 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 03:52:41,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 03:52:41,501 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:52:40" (1/1) ... [2021-12-16 03:52:41,507 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:52:41,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:52:41,565 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-16 03:52:41,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-16 03:52:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_ohci [2021-12-16 03:52:41,637 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_ohci [2021-12-16 03:52:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-16 03:52:41,637 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-16 03:52:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2021-12-16 03:52:41,637 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2021-12-16 03:52:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2021-12-16 03:52:41,638 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2021-12-16 03:52:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure start_ed_unlink [2021-12-16 03:52:41,638 INFO L138 BoogieDeclarations]: Found implementation of procedure start_ed_unlink [2021-12-16 03:52:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_status [2021-12-16 03:52:41,638 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_status [2021-12-16 03:52:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-12-16 03:52:41,638 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-12-16 03:52:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_suspend [2021-12-16 03:52:41,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_suspend [2021-12-16 03:52:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_alloc [2021-12-16 03:52:41,639 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_alloc [2021-12-16 03:52:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure show_list [2021-12-16 03:52:41,639 INFO L138 BoogieDeclarations]: Found implementation of procedure show_list [2021-12-16 03:52:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_probe [2021-12-16 03:52:41,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_probe [2021-12-16 03:52:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 03:52:41,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 03:52:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-16 03:52:41,640 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-16 03:52:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpup [2021-12-16 03:52:41,640 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpup [2021-12-16 03:52:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure hcfs2string [2021-12-16 03:52:41,640 INFO L138 BoogieDeclarations]: Found implementation of procedure hcfs2string [2021-12-16 03:52:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_zfmicro [2021-12-16 03:52:41,641 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_zfmicro [2021-12-16 03:52:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure usb_disabled [2021-12-16 03:52:41,641 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_disabled [2021-12-16 03:52:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_status_data [2021-12-16 03:52:41,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_status_data [2021-12-16 03:52:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_reset [2021-12-16 03:52:41,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_reset [2021-12-16 03:52:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_shutdown [2021-12-16 03:52:41,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_shutdown [2021-12-16 03:52:41,642 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-16 03:52:41,642 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-16 03:52:41,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-16 03:52:41,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-16 03:52:41,642 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_intr_mask [2021-12-16 03:52:41,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_intr_mask [2021-12-16 03:52:41,642 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_buffer [2021-12-16 03:52:41,642 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_buffer [2021-12-16 03:52:41,642 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_writel [2021-12-16 03:52:41,643 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_writel [2021-12-16 03:52:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-16 03:52:41,643 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-16 03:52:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-16 03:52:41,643 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-16 03:52:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hwPSWp [2021-12-16 03:52:41,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hwPSWp [2021-12-16 03:52:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_resume [2021-12-16 03:52:41,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_resume [2021-12-16 03:52:41,644 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_suspend [2021-12-16 03:52:41,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_suspend [2021-12-16 03:52:41,644 INFO L130 BoogieDeclarations]: Found specification of procedure debug_output [2021-12-16 03:52:41,644 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_output [2021-12-16 03:52:41,644 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-16 03:52:41,644 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-16 03:52:41,644 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-16 03:52:41,644 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-16 03:52:41,644 INFO L130 BoogieDeclarations]: Found specification of procedure ed_schedule [2021-12-16 03:52:41,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_schedule [2021-12-16 03:52:41,645 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hcd_init [2021-12-16 03:52:41,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hcd_init [2021-12-16 03:52:41,645 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_roothub [2021-12-16 03:52:41,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_roothub [2021-12-16 03:52:41,645 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2021-12-16 03:52:41,645 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2021-12-16 03:52:41,645 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-16 03:52:41,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-16 03:52:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 03:52:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_stop [2021-12-16 03:52:41,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_stop [2021-12-16 03:52:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-16 03:52:41,646 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-16 03:52:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 03:52:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2021-12-16 03:52:41,646 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2021-12-16 03:52:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_remove [2021-12-16 03:52:41,647 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_remove [2021-12-16 03:52:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure check_ed [2021-12-16 03:52:41,647 INFO L138 BoogieDeclarations]: Found implementation of procedure check_ed [2021-12-16 03:52:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_restart [2021-12-16 03:52:41,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_restart [2021-12-16 03:52:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_nec [2021-12-16 03:52:41,648 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_nec [2021-12-16 03:52:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-16 03:52:41,648 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-16 03:52:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2021-12-16 03:52:41,648 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2021-12-16 03:52:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure td_free [2021-12-16 03:52:41,648 INFO L138 BoogieDeclarations]: Found implementation of procedure td_free [2021-12-16 03:52:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure broken_suspend [2021-12-16 03:52:41,648 INFO L138 BoogieDeclarations]: Found implementation of procedure broken_suspend [2021-12-16 03:52:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 03:52:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_resume [2021-12-16 03:52:41,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_resume [2021-12-16 03:52:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_platform_shutdown [2021-12-16 03:52:41,649 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_platform_shutdown [2021-12-16 03:52:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 03:52:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_portstatus [2021-12-16 03:52:41,649 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_portstatus [2021-12-16 03:52:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-12-16 03:52:41,650 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-12-16 03:52:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hc_died [2021-12-16 03:52:41,650 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hc_died [2021-12-16 03:52:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_remove [2021-12-16 03:52:41,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_remove [2021-12-16 03:52:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-12-16 03:52:41,650 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-12-16 03:52:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-16 03:52:41,650 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-16 03:52:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2021-12-16 03:52:41,651 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2021-12-16 03:52:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-16 03:52:41,651 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-16 03:52:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-16 03:52:41,651 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-16 03:52:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-16 03:52:41,651 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-16 03:52:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_resume [2021-12-16 03:52:41,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_resume [2021-12-16 03:52:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure ed_free [2021-12-16 03:52:41,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_free [2021-12-16 03:52:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-16 03:52:41,652 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-16 03:52:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2021-12-16 03:52:41,652 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2021-12-16 03:52:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_start [2021-12-16 03:52:41,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_start [2021-12-16 03:52:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump [2021-12-16 03:52:41,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump [2021-12-16 03:52:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_frame_no [2021-12-16 03:52:41,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_frame_no [2021-12-16 03:52:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-16 03:52:41,653 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-16 03:52:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-16 03:52:41,653 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-16 03:52:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-16 03:52:41,654 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-16 03:52:41,654 INFO L130 BoogieDeclarations]: Found specification of procedure sb800_prefetch [2021-12-16 03:52:41,654 INFO L138 BoogieDeclarations]: Found implementation of procedure sb800_prefetch [2021-12-16 03:52:41,654 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_control [2021-12-16 03:52:41,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_control [2021-12-16 03:52:41,654 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2021-12-16 03:52:41,654 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2021-12-16 03:52:41,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 03:52:41,654 INFO L130 BoogieDeclarations]: Found specification of procedure finish_urb [2021-12-16 03:52:41,654 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_urb [2021-12-16 03:52:41,655 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_suspend [2021-12-16 03:52:41,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_suspend [2021-12-16 03:52:41,655 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_a [2021-12-16 03:52:41,655 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_a [2021-12-16 03:52:41,655 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_irq [2021-12-16 03:52:41,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_irq [2021-12-16 03:52:41,655 INFO L130 BoogieDeclarations]: Found specification of procedure rh_state_string [2021-12-16 03:52:41,655 INFO L138 BoogieDeclarations]: Found implementation of procedure rh_state_string [2021-12-16 03:52:41,655 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_b [2021-12-16 03:52:41,656 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_b [2021-12-16 03:52:41,656 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_enqueue [2021-12-16 03:52:41,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_enqueue [2021-12-16 03:52:41,656 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_start_port_reset [2021-12-16 03:52:41,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_start_port_reset [2021-12-16 03:52:41,656 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_to_hcd [2021-12-16 03:52:41,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_to_hcd [2021-12-16 03:52:41,656 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_start [2021-12-16 03:52:41,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_start [2021-12-16 03:52:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure td_alloc [2021-12-16 03:52:41,657 INFO L138 BoogieDeclarations]: Found implementation of procedure td_alloc [2021-12-16 03:52:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure find_head [2021-12-16 03:52:41,657 INFO L138 BoogieDeclarations]: Found implementation of procedure find_head [2021-12-16 03:52:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-16 03:52:41,657 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-16 03:52:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_run [2021-12-16 03:52:41,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_run [2021-12-16 03:52:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2021-12-16 03:52:41,658 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2021-12-16 03:52:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_endpoint_disable [2021-12-16 03:52:41,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_endpoint_disable [2021-12-16 03:52:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 03:52:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure takeback_td [2021-12-16 03:52:41,658 INFO L138 BoogieDeclarations]: Found implementation of procedure takeback_td [2021-12-16 03:52:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdprefetch [2021-12-16 03:52:41,658 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdprefetch [2021-12-16 03:52:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-16 03:52:41,659 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-16 03:52:41,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 03:52:41,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 03:52:41,659 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_readl [2021-12-16 03:52:41,659 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_readl [2021-12-16 03:52:41,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 03:52:41,659 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2021-12-16 03:52:41,659 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2021-12-16 03:52:41,659 INFO L130 BoogieDeclarations]: Found specification of procedure dl_done_list [2021-12-16 03:52:41,660 INFO L138 BoogieDeclarations]: Found implementation of procedure dl_done_list [2021-12-16 03:52:41,660 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_poll_rh_status [2021-12-16 03:52:41,660 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_poll_rh_status [2021-12-16 03:52:41,660 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-16 03:52:41,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-16 03:52:41,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 03:52:41,660 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_reinit [2021-12-16 03:52:41,660 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_reinit [2021-12-16 03:52:41,660 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2021-12-16 03:52:41,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2021-12-16 03:52:41,661 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-16 03:52:41,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-16 03:52:41,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 03:52:41,661 INFO L130 BoogieDeclarations]: Found specification of procedure td_done [2021-12-16 03:52:41,661 INFO L138 BoogieDeclarations]: Found implementation of procedure td_done [2021-12-16 03:52:41,661 INFO L130 BoogieDeclarations]: Found specification of procedure td_fill [2021-12-16 03:52:41,661 INFO L138 BoogieDeclarations]: Found implementation of procedure td_fill [2021-12-16 03:52:41,661 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_dequeue [2021-12-16 03:52:41,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_dequeue [2021-12-16 03:52:41,662 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-16 03:52:41,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-16 03:52:41,662 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_init [2021-12-16 03:52:41,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_init [2021-12-16 03:52:41,662 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-16 03:52:41,662 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-16 03:52:41,662 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc16 [2021-12-16 03:52:41,662 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc16 [2021-12-16 03:52:41,662 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-16 03:52:41,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-16 03:52:41,663 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdiso [2021-12-16 03:52:41,663 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdiso [2021-12-16 03:52:41,663 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2021-12-16 03:52:41,663 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2021-12-16 03:52:41,663 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-16 03:52:41,663 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-16 03:52:41,663 INFO L130 BoogieDeclarations]: Found specification of procedure ed_deschedule [2021-12-16 03:52:41,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_deschedule [2021-12-16 03:52:41,664 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_resume_root_hub [2021-12-16 03:52:41,664 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_resume_root_hub [2021-12-16 03:52:41,664 INFO L130 BoogieDeclarations]: Found specification of procedure urb_free_priv [2021-12-16 03:52:41,664 INFO L138 BoogieDeclarations]: Found implementation of procedure urb_free_priv [2021-12-16 03:52:41,664 INFO L130 BoogieDeclarations]: Found specification of procedure finish_unlinks [2021-12-16 03:52:41,664 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_unlinks [2021-12-16 03:52:41,664 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpu [2021-12-16 03:52:41,664 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpu [2021-12-16 03:52:41,664 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2021-12-16 03:52:41,664 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2021-12-16 03:52:41,665 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_status [2021-12-16 03:52:41,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_status [2021-12-16 03:52:41,665 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_print_eds [2021-12-16 03:52:41,665 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_print_eds [2021-12-16 03:52:41,665 INFO L130 BoogieDeclarations]: Found specification of procedure debug_close [2021-12-16 03:52:41,665 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_close [2021-12-16 03:52:41,665 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_get_frame [2021-12-16 03:52:41,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_get_frame [2021-12-16 03:52:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2021-12-16 03:52:41,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2021-12-16 03:52:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-16 03:52:41,666 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-16 03:52:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-16 03:52:41,666 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-16 03:52:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc32 [2021-12-16 03:52:41,666 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc32 [2021-12-16 03:52:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-16 03:52:41,666 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-16 03:52:41,667 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_usb_reset [2021-12-16 03:52:41,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_usb_reset [2021-12-16 03:52:41,667 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_resume [2021-12-16 03:52:41,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_resume [2021-12-16 03:52:41,667 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-12-16 03:52:41,667 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-12-16 03:52:41,667 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-16 03:52:41,667 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-16 03:52:41,667 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_suspend [2021-12-16 03:52:41,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_suspend [2021-12-16 03:52:41,668 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_reset [2021-12-16 03:52:41,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_reset [2021-12-16 03:52:41,668 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_shutdown [2021-12-16 03:52:41,668 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_shutdown [2021-12-16 03:52:41,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 03:52:41,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 03:52:41,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 03:52:41,668 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2021-12-16 03:52:41,669 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2021-12-16 03:52:42,508 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 03:52:42,511 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 03:52:47,130 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 03:52:47,154 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 03:52:47,154 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-16 03:52:47,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:52:47 BoogieIcfgContainer [2021-12-16 03:52:47,158 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 03:52:47,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 03:52:47,160 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 03:52:47,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 03:52:47,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:52:38" (1/3) ... [2021-12-16 03:52:47,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44b45aa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:52:47, skipping insertion in model container [2021-12-16 03:52:47,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:52:40" (2/3) ... [2021-12-16 03:52:47,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44b45aa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:52:47, skipping insertion in model container [2021-12-16 03:52:47,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:52:47" (3/3) ... [2021-12-16 03:52:47,165 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2021-12-16 03:52:47,169 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 03:52:47,169 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 03:52:47,215 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 03:52:47,221 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-16 03:52:47,221 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 03:52:47,286 INFO L276 IsEmpty]: Start isEmpty. Operand has 3313 states, 2331 states have (on average 1.3951093951093951) internal successors, (3252), 2402 states have internal predecessors, (3252), 848 states have call successors, (848), 136 states have call predecessors, (848), 136 states have return successors, (848), 839 states have call predecessors, (848), 848 states have call successors, (848) [2021-12-16 03:52:47,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-16 03:52:47,291 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:52:47,291 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:52:47,292 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:52:47,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:52:47,295 INFO L85 PathProgramCache]: Analyzing trace with hash -825410595, now seen corresponding path program 1 times [2021-12-16 03:52:47,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:52:47,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506683651] [2021-12-16 03:52:47,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:52:47,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:52:47,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:52:47,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:52:47,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:52:47,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506683651] [2021-12-16 03:52:47,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506683651] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:52:47,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:52:47,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:52:47,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895836662] [2021-12-16 03:52:47,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:52:47,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:52:47,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:52:47,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:52:47,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:52:47,810 INFO L87 Difference]: Start difference. First operand has 3313 states, 2331 states have (on average 1.3951093951093951) internal successors, (3252), 2402 states have internal predecessors, (3252), 848 states have call successors, (848), 136 states have call predecessors, (848), 136 states have return successors, (848), 839 states have call predecessors, (848), 848 states have call successors, (848) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:52:48,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:52:48,214 INFO L93 Difference]: Finished difference Result 9883 states and 15013 transitions. [2021-12-16 03:52:48,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:52:48,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-12-16 03:52:48,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:52:48,269 INFO L225 Difference]: With dead ends: 9883 [2021-12-16 03:52:48,269 INFO L226 Difference]: Without dead ends: 6563 [2021-12-16 03:52:48,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:52:48,304 INFO L933 BasicCegarLoop]: 7168 mSDtfsCounter, 4872 mSDsluCounter, 4897 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4872 SdHoareTripleChecker+Valid, 12065 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:52:48,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4872 Valid, 12065 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:52:48,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6563 states. [2021-12-16 03:52:48,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6563 to 6549. [2021-12-16 03:52:48,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6549 states, 4600 states have (on average 1.393695652173913) internal successors, (6411), 4734 states have internal predecessors, (6411), 1678 states have call successors, (1678), 271 states have call predecessors, (1678), 270 states have return successors, (1672), 1653 states have call predecessors, (1672), 1672 states have call successors, (1672) [2021-12-16 03:52:48,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6549 states to 6549 states and 9761 transitions. [2021-12-16 03:52:48,610 INFO L78 Accepts]: Start accepts. Automaton has 6549 states and 9761 transitions. Word has length 14 [2021-12-16 03:52:48,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:52:48,610 INFO L470 AbstractCegarLoop]: Abstraction has 6549 states and 9761 transitions. [2021-12-16 03:52:48,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:52:48,611 INFO L276 IsEmpty]: Start isEmpty. Operand 6549 states and 9761 transitions. [2021-12-16 03:52:48,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-16 03:52:48,613 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:52:48,613 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:52:48,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 03:52:48,613 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:52:48,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:52:48,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1327585593, now seen corresponding path program 1 times [2021-12-16 03:52:48,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:52:48,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514617736] [2021-12-16 03:52:48,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:52:48,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:52:48,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:52:48,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:52:48,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:52:48,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514617736] [2021-12-16 03:52:48,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514617736] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:52:48,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:52:48,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:52:48,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638104369] [2021-12-16 03:52:48,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:52:48,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:52:48,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:52:48,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:52:48,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:52:48,946 INFO L87 Difference]: Start difference. First operand 6549 states and 9761 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:52:49,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:52:49,349 INFO L93 Difference]: Finished difference Result 19597 states and 29203 transitions. [2021-12-16 03:52:49,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:52:49,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-12-16 03:52:49,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:52:49,439 INFO L225 Difference]: With dead ends: 19597 [2021-12-16 03:52:49,440 INFO L226 Difference]: Without dead ends: 13051 [2021-12-16 03:52:49,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:52:49,483 INFO L933 BasicCegarLoop]: 6326 mSDtfsCounter, 4864 mSDsluCounter, 4891 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4864 SdHoareTripleChecker+Valid, 11217 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:52:49,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4864 Valid, 11217 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:52:49,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13051 states. [2021-12-16 03:52:49,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13051 to 13037. [2021-12-16 03:52:49,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13037 states, 9154 states have (on average 1.392724492025344) internal successors, (12749), 9418 states have internal predecessors, (12749), 3342 states have call successors, (3342), 541 states have call predecessors, (3342), 540 states have return successors, (3336), 3297 states have call predecessors, (3336), 3336 states have call successors, (3336) [2021-12-16 03:52:50,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13037 states to 13037 states and 19427 transitions. [2021-12-16 03:52:50,034 INFO L78 Accepts]: Start accepts. Automaton has 13037 states and 19427 transitions. Word has length 16 [2021-12-16 03:52:50,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:52:50,034 INFO L470 AbstractCegarLoop]: Abstraction has 13037 states and 19427 transitions. [2021-12-16 03:52:50,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:52:50,034 INFO L276 IsEmpty]: Start isEmpty. Operand 13037 states and 19427 transitions. [2021-12-16 03:52:50,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-16 03:52:50,036 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:52:50,036 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:52:50,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 03:52:50,037 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:52:50,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:52:50,037 INFO L85 PathProgramCache]: Analyzing trace with hash -269818897, now seen corresponding path program 1 times [2021-12-16 03:52:50,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:52:50,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862301447] [2021-12-16 03:52:50,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:52:50,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:52:50,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:52:50,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:52:50,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:52:50,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862301447] [2021-12-16 03:52:50,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862301447] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:52:50,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:52:50,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:52:50,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812016840] [2021-12-16 03:52:50,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:52:50,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:52:50,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:52:50,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:52:50,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:52:50,207 INFO L87 Difference]: Start difference. First operand 13037 states and 19427 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:52:51,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:52:51,208 INFO L93 Difference]: Finished difference Result 38959 states and 58058 transitions. [2021-12-16 03:52:51,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:52:51,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-12-16 03:52:51,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:52:51,380 INFO L225 Difference]: With dead ends: 38959 [2021-12-16 03:52:51,380 INFO L226 Difference]: Without dead ends: 25925 [2021-12-16 03:52:51,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:52:51,539 INFO L933 BasicCegarLoop]: 6747 mSDtfsCounter, 4862 mSDsluCounter, 4891 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4862 SdHoareTripleChecker+Valid, 11638 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:52:51,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4862 Valid, 11638 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:52:51,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25925 states. [2021-12-16 03:52:52,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25925 to 25911. [2021-12-16 03:52:52,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25911 states, 18183 states have (on average 1.3920695154814937) internal successors, (25312), 18706 states have internal predecessors, (25312), 6654 states have call successors, (6654), 1074 states have call predecessors, (6654), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2021-12-16 03:52:52,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25911 states to 25911 states and 38614 transitions. [2021-12-16 03:52:52,495 INFO L78 Accepts]: Start accepts. Automaton has 25911 states and 38614 transitions. Word has length 18 [2021-12-16 03:52:52,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:52:52,496 INFO L470 AbstractCegarLoop]: Abstraction has 25911 states and 38614 transitions. [2021-12-16 03:52:52,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:52:52,496 INFO L276 IsEmpty]: Start isEmpty. Operand 25911 states and 38614 transitions. [2021-12-16 03:52:52,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-16 03:52:52,502 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:52:52,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:52:52,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 03:52:52,503 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:52:52,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:52:52,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1935095309, now seen corresponding path program 1 times [2021-12-16 03:52:52,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:52:52,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005353248] [2021-12-16 03:52:52,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:52:52,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:52:52,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:52:52,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-16 03:52:52,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:52:52,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:52:52,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:52:52,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005353248] [2021-12-16 03:52:52,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005353248] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:52:52,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:52:52,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:52:52,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909709143] [2021-12-16 03:52:52,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:52:52,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:52:52,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:52:52,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:52:52,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:52:52,838 INFO L87 Difference]: Start difference. First operand 25911 states and 38614 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 03:52:53,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:52:53,720 INFO L93 Difference]: Finished difference Result 51854 states and 77278 transitions. [2021-12-16 03:52:53,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:52:53,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-12-16 03:52:53,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:52:53,857 INFO L225 Difference]: With dead ends: 51854 [2021-12-16 03:52:53,857 INFO L226 Difference]: Without dead ends: 25946 [2021-12-16 03:52:54,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:52:54,012 INFO L933 BasicCegarLoop]: 4906 mSDtfsCounter, 22 mSDsluCounter, 9807 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 14713 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:52:54,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 14713 Invalid, 18 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:52:54,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25946 states. [2021-12-16 03:52:54,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25946 to 25914. [2021-12-16 03:52:54,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25914 states, 18186 states have (on average 1.392004838887056) internal successors, (25315), 18709 states have internal predecessors, (25315), 6654 states have call successors, (6654), 1074 states have call predecessors, (6654), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2021-12-16 03:52:54,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25914 states to 25914 states and 38617 transitions. [2021-12-16 03:52:54,957 INFO L78 Accepts]: Start accepts. Automaton has 25914 states and 38617 transitions. Word has length 29 [2021-12-16 03:52:54,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:52:54,957 INFO L470 AbstractCegarLoop]: Abstraction has 25914 states and 38617 transitions. [2021-12-16 03:52:54,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 03:52:54,958 INFO L276 IsEmpty]: Start isEmpty. Operand 25914 states and 38617 transitions. [2021-12-16 03:52:54,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-16 03:52:54,961 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:52:54,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:52:54,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 03:52:54,962 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:52:54,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:52:54,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1992353611, now seen corresponding path program 1 times [2021-12-16 03:52:54,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:52:54,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184189853] [2021-12-16 03:52:54,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:52:54,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:52:55,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:52:55,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-16 03:52:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:52:55,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:52:55,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:52:55,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184189853] [2021-12-16 03:52:55,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184189853] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:52:55,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:52:55,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:52:55,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849281043] [2021-12-16 03:52:55,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:52:55,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:52:55,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:52:55,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:52:55,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:52:55,155 INFO L87 Difference]: Start difference. First operand 25914 states and 38617 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 03:52:55,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:52:55,649 INFO L93 Difference]: Finished difference Result 25916 states and 38618 transitions. [2021-12-16 03:52:55,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:52:55,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-12-16 03:52:55,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:52:55,810 INFO L225 Difference]: With dead ends: 25916 [2021-12-16 03:52:55,810 INFO L226 Difference]: Without dead ends: 25913 [2021-12-16 03:52:55,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:52:55,833 INFO L933 BasicCegarLoop]: 4906 mSDtfsCounter, 4884 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4884 SdHoareTripleChecker+Valid, 4906 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:52:55,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4884 Valid, 4906 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:52:55,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25913 states. [2021-12-16 03:52:56,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25913 to 25913. [2021-12-16 03:52:56,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25913 states, 18186 states have (on average 1.391949851534147) internal successors, (25314), 18708 states have internal predecessors, (25314), 6653 states have call successors, (6653), 1074 states have call predecessors, (6653), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2021-12-16 03:52:56,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25913 states to 25913 states and 38615 transitions. [2021-12-16 03:52:56,844 INFO L78 Accepts]: Start accepts. Automaton has 25913 states and 38615 transitions. Word has length 29 [2021-12-16 03:52:56,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:52:56,846 INFO L470 AbstractCegarLoop]: Abstraction has 25913 states and 38615 transitions. [2021-12-16 03:52:56,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 03:52:56,846 INFO L276 IsEmpty]: Start isEmpty. Operand 25913 states and 38615 transitions. [2021-12-16 03:52:56,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-16 03:52:56,849 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:52:56,849 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:52:56,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 03:52:56,850 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:52:56,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:52:56,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1631933668, now seen corresponding path program 1 times [2021-12-16 03:52:56,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:52:56,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154426562] [2021-12-16 03:52:56,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:52:56,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:52:56,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:52:57,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-16 03:52:57,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:52:57,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:52:57,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:52:57,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154426562] [2021-12-16 03:52:57,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154426562] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:52:57,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:52:57,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:52:57,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079958286] [2021-12-16 03:52:57,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:52:57,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:52:57,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:52:57,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:52:57,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:52:57,090 INFO L87 Difference]: Start difference. First operand 25913 states and 38615 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 03:52:57,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:52:57,663 INFO L93 Difference]: Finished difference Result 25915 states and 38616 transitions. [2021-12-16 03:52:57,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:52:57,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-12-16 03:52:57,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:52:57,817 INFO L225 Difference]: With dead ends: 25915 [2021-12-16 03:52:57,817 INFO L226 Difference]: Without dead ends: 25912 [2021-12-16 03:52:57,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:52:57,842 INFO L933 BasicCegarLoop]: 4904 mSDtfsCounter, 4881 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4881 SdHoareTripleChecker+Valid, 4904 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:52:57,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4881 Valid, 4904 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:52:57,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25912 states. [2021-12-16 03:52:58,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25912 to 25912. [2021-12-16 03:52:58,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25912 states, 18186 states have (on average 1.3918948641812383) internal successors, (25313), 18707 states have internal predecessors, (25313), 6652 states have call successors, (6652), 1074 states have call predecessors, (6652), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2021-12-16 03:52:58,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25912 states to 25912 states and 38613 transitions. [2021-12-16 03:52:58,822 INFO L78 Accepts]: Start accepts. Automaton has 25912 states and 38613 transitions. Word has length 30 [2021-12-16 03:52:58,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:52:58,823 INFO L470 AbstractCegarLoop]: Abstraction has 25912 states and 38613 transitions. [2021-12-16 03:52:58,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 03:52:58,823 INFO L276 IsEmpty]: Start isEmpty. Operand 25912 states and 38613 transitions. [2021-12-16 03:52:58,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-16 03:52:58,827 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:52:58,827 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:52:58,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 03:52:58,827 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:52:58,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:52:58,828 INFO L85 PathProgramCache]: Analyzing trace with hash -951145106, now seen corresponding path program 1 times [2021-12-16 03:52:58,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:52:58,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358710503] [2021-12-16 03:52:58,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:52:58,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:52:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:52:58,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-16 03:52:59,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:52:59,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:52:59,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:52:59,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358710503] [2021-12-16 03:52:59,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358710503] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:52:59,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:52:59,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:52:59,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717122385] [2021-12-16 03:52:59,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:52:59,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:52:59,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:52:59,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:52:59,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:52:59,009 INFO L87 Difference]: Start difference. First operand 25912 states and 38613 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 03:53:00,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:53:00,100 INFO L93 Difference]: Finished difference Result 40287 states and 59265 transitions. [2021-12-16 03:53:00,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:53:00,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-12-16 03:53:00,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:53:00,491 INFO L225 Difference]: With dead ends: 40287 [2021-12-16 03:53:00,492 INFO L226 Difference]: Without dead ends: 40283 [2021-12-16 03:53:00,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:53:00,517 INFO L933 BasicCegarLoop]: 5455 mSDtfsCounter, 4844 mSDsluCounter, 2979 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4844 SdHoareTripleChecker+Valid, 8434 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:53:00,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4844 Valid, 8434 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:53:00,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40283 states. [2021-12-16 03:53:02,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40283 to 40281. [2021-12-16 03:53:02,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40281 states, 28147 states have (on average 1.3720467545386719) internal successors, (38619), 28925 states have internal predecessors, (38619), 10318 states have call successors, (10318), 1816 states have call predecessors, (10318), 1815 states have return successors, (10316), 10202 states have call predecessors, (10316), 10316 states have call successors, (10316) [2021-12-16 03:53:02,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40281 states to 40281 states and 59253 transitions. [2021-12-16 03:53:02,250 INFO L78 Accepts]: Start accepts. Automaton has 40281 states and 59253 transitions. Word has length 31 [2021-12-16 03:53:02,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:53:02,251 INFO L470 AbstractCegarLoop]: Abstraction has 40281 states and 59253 transitions. [2021-12-16 03:53:02,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 03:53:02,251 INFO L276 IsEmpty]: Start isEmpty. Operand 40281 states and 59253 transitions. [2021-12-16 03:53:02,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-16 03:53:02,254 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:53:02,254 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:53:02,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-16 03:53:02,255 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:53:02,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:53:02,255 INFO L85 PathProgramCache]: Analyzing trace with hash 577796391, now seen corresponding path program 1 times [2021-12-16 03:53:02,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:53:02,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233365084] [2021-12-16 03:53:02,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:53:02,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:53:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:02,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-16 03:53:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:02,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:53:02,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:53:02,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233365084] [2021-12-16 03:53:02,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233365084] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:53:02,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:53:02,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:53:02,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385529112] [2021-12-16 03:53:02,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:53:02,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:53:02,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:53:02,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:53:02,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:53:02,440 INFO L87 Difference]: Start difference. First operand 40281 states and 59253 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 03:53:03,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:53:03,320 INFO L93 Difference]: Finished difference Result 40283 states and 59254 transitions. [2021-12-16 03:53:03,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:53:03,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-12-16 03:53:03,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:53:03,589 INFO L225 Difference]: With dead ends: 40283 [2021-12-16 03:53:03,590 INFO L226 Difference]: Without dead ends: 40191 [2021-12-16 03:53:03,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:53:03,640 INFO L933 BasicCegarLoop]: 4899 mSDtfsCounter, 4873 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4873 SdHoareTripleChecker+Valid, 4899 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:53:03,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4873 Valid, 4899 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:53:03,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40191 states. [2021-12-16 03:53:04,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40191 to 40191. [2021-12-16 03:53:04,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40191 states, 28098 states have (on average 1.3718414122001565) internal successors, (38546), 28868 states have internal predecessors, (38546), 10285 states have call successors, (10285), 1808 states have call predecessors, (10285), 1807 states have return successors, (10284), 10177 states have call predecessors, (10284), 10284 states have call successors, (10284) [2021-12-16 03:53:05,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40191 states to 40191 states and 59115 transitions. [2021-12-16 03:53:05,012 INFO L78 Accepts]: Start accepts. Automaton has 40191 states and 59115 transitions. Word has length 32 [2021-12-16 03:53:05,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:53:05,012 INFO L470 AbstractCegarLoop]: Abstraction has 40191 states and 59115 transitions. [2021-12-16 03:53:05,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 03:53:05,013 INFO L276 IsEmpty]: Start isEmpty. Operand 40191 states and 59115 transitions. [2021-12-16 03:53:05,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-16 03:53:05,028 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:53:05,028 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:53:05,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 03:53:05,029 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:53:05,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:53:05,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1062285101, now seen corresponding path program 1 times [2021-12-16 03:53:05,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:53:05,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813010191] [2021-12-16 03:53:05,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:53:05,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:53:05,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:05,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-16 03:53:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:05,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-16 03:53:05,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:05,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-16 03:53:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:05,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 03:53:05,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:05,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:53:05,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:05,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 03:53:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:05,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-16 03:53:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:05,634 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:53:05,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:53:05,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813010191] [2021-12-16 03:53:05,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813010191] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:53:05,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:53:05,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:53:05,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730746283] [2021-12-16 03:53:05,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:53:05,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:53:05,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:53:05,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:53:05,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:53:05,637 INFO L87 Difference]: Start difference. First operand 40191 states and 59115 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-16 03:53:13,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:53:13,552 INFO L93 Difference]: Finished difference Result 108621 states and 161333 transitions. [2021-12-16 03:53:13,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:53:13,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 75 [2021-12-16 03:53:13,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:53:13,892 INFO L225 Difference]: With dead ends: 108621 [2021-12-16 03:53:13,892 INFO L226 Difference]: Without dead ends: 68433 [2021-12-16 03:53:14,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:53:14,041 INFO L933 BasicCegarLoop]: 9389 mSDtfsCounter, 5711 mSDsluCounter, 9261 mSDsCounter, 0 mSdLazyCounter, 2856 mSolverCounterSat, 1848 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6534 SdHoareTripleChecker+Valid, 18650 SdHoareTripleChecker+Invalid, 4704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1848 IncrementalHoareTripleChecker+Valid, 2856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-12-16 03:53:14,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6534 Valid, 18650 Invalid, 4704 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1848 Valid, 2856 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2021-12-16 03:53:14,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68433 states. [2021-12-16 03:53:16,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68433 to 59224. [2021-12-16 03:53:16,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59224 states, 41416 states have (on average 1.372416457407765) internal successors, (56840), 42552 states have internal predecessors, (56840), 15153 states have call successors, (15153), 2655 states have call predecessors, (15153), 2654 states have return successors, (15152), 14994 states have call predecessors, (15152), 15152 states have call successors, (15152) [2021-12-16 03:53:16,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59224 states to 59224 states and 87145 transitions. [2021-12-16 03:53:16,921 INFO L78 Accepts]: Start accepts. Automaton has 59224 states and 87145 transitions. Word has length 75 [2021-12-16 03:53:16,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:53:16,921 INFO L470 AbstractCegarLoop]: Abstraction has 59224 states and 87145 transitions. [2021-12-16 03:53:16,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-16 03:53:16,922 INFO L276 IsEmpty]: Start isEmpty. Operand 59224 states and 87145 transitions. [2021-12-16 03:53:16,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-16 03:53:16,934 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:53:16,934 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:53:16,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-16 03:53:16,934 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:53:16,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:53:16,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1311107985, now seen corresponding path program 1 times [2021-12-16 03:53:16,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:53:16,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764264343] [2021-12-16 03:53:16,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:53:16,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:53:17,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:17,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-16 03:53:17,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:17,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-16 03:53:17,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:17,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-16 03:53:17,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:17,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 03:53:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:17,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:53:17,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:17,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 03:53:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:17,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-16 03:53:17,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:17,144 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:53:17,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:53:17,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764264343] [2021-12-16 03:53:17,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764264343] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:53:17,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:53:17,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:53:17,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981044136] [2021-12-16 03:53:17,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:53:17,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:53:17,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:53:17,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:53:17,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:53:17,146 INFO L87 Difference]: Start difference. First operand 59224 states and 87145 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-16 03:53:25,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:53:25,255 INFO L93 Difference]: Finished difference Result 159432 states and 236929 transitions. [2021-12-16 03:53:25,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:53:25,256 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 77 [2021-12-16 03:53:25,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:53:25,893 INFO L225 Difference]: With dead ends: 159432 [2021-12-16 03:53:25,894 INFO L226 Difference]: Without dead ends: 100211 [2021-12-16 03:53:26,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:53:26,130 INFO L933 BasicCegarLoop]: 9355 mSDtfsCounter, 5701 mSDsluCounter, 9226 mSDsCounter, 0 mSdLazyCounter, 2857 mSolverCounterSat, 1853 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6524 SdHoareTripleChecker+Valid, 18581 SdHoareTripleChecker+Invalid, 4710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1853 IncrementalHoareTripleChecker+Valid, 2857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-12-16 03:53:26,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6524 Valid, 18581 Invalid, 4710 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1853 Valid, 2857 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2021-12-16 03:53:26,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100211 states. [2021-12-16 03:53:29,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100211 to 86716. [2021-12-16 03:53:29,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86716 states, 60662 states have (on average 1.3732484916422143) internal successors, (83304), 62328 states have internal predecessors, (83304), 22185 states have call successors, (22185), 3869 states have call predecessors, (22185), 3868 states have return successors, (22184), 21952 states have call predecessors, (22184), 22184 states have call successors, (22184) [2021-12-16 03:53:30,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86716 states to 86716 states and 127673 transitions. [2021-12-16 03:53:30,023 INFO L78 Accepts]: Start accepts. Automaton has 86716 states and 127673 transitions. Word has length 77 [2021-12-16 03:53:30,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:53:30,024 INFO L470 AbstractCegarLoop]: Abstraction has 86716 states and 127673 transitions. [2021-12-16 03:53:30,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-16 03:53:30,024 INFO L276 IsEmpty]: Start isEmpty. Operand 86716 states and 127673 transitions. [2021-12-16 03:53:30,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-16 03:53:30,062 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:53:30,062 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:53:30,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-16 03:53:30,062 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:53:30,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:53:30,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1878818405, now seen corresponding path program 1 times [2021-12-16 03:53:30,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:53:30,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833813717] [2021-12-16 03:53:30,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:53:30,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:53:30,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:30,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-16 03:53:30,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:30,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-16 03:53:30,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:30,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-16 03:53:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:30,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 03:53:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:30,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 03:53:30,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:30,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 03:53:30,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:30,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-16 03:53:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:53:30,272 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:53:30,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:53:30,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833813717] [2021-12-16 03:53:30,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833813717] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:53:30,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:53:30,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:53:30,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029090610] [2021-12-16 03:53:30,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:53:30,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:53:30,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:53:30,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:53:30,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:53:30,274 INFO L87 Difference]: Start difference. First operand 86716 states and 127673 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)