./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 f4b24e32 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-?-f4b24e3 [2022-07-13 23:54:41,637 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 23:54:41,639 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 23:54:41,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 23:54:41,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 23:54:41,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 23:54:41,683 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 23:54:41,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 23:54:41,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 23:54:41,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 23:54:41,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 23:54:41,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 23:54:41,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 23:54:41,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 23:54:41,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 23:54:41,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 23:54:41,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 23:54:41,699 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 23:54:41,701 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 23:54:41,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 23:54:41,708 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 23:54:41,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 23:54:41,712 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 23:54:41,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 23:54:41,715 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 23:54:41,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 23:54:41,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 23:54:41,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 23:54:41,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 23:54:41,721 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 23:54:41,721 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 23:54:41,722 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 23:54:41,722 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 23:54:41,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 23:54:41,723 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 23:54:41,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 23:54:41,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 23:54:41,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 23:54:41,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 23:54:41,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 23:54:41,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 23:54:41,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 23:54:41,731 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-13 23:54:41,761 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 23:54:41,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 23:54:41,762 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 23:54:41,762 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 23:54:41,763 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 23:54:41,763 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 23:54:41,764 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 23:54:41,764 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 23:54:41,764 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 23:54:41,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 23:54:41,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 23:54:41,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 23:54:41,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 23:54:41,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 23:54:41,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 23:54:41,767 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 23:54:41,767 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 23:54:41,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 23:54:41,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 23:54:41,768 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 23:54:41,769 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 23:54:41,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 23:54:41,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 23:54:41,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 23:54:41,769 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 23:54:41,770 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 23:54:41,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 23:54:41,770 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 23:54:41,770 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 23:54:41,770 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 23:54:41,771 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0991342cd9e67cbadb964d86a1516812eb3aa45e84d4674c09b8e10a19f475c1 [2022-07-13 23:54:42,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 23:54:42,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 23:54:42,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 23:54:42,087 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 23:54:42,087 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 23:54:42,090 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2022-07-13 23:54:42,148 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10b0121b6/17783bb5bda64681bfe035350faf86a0/FLAG063697753 [2022-07-13 23:54:42,979 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 23:54:42,980 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2022-07-13 23:54:43,023 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10b0121b6/17783bb5bda64681bfe035350faf86a0/FLAG063697753 [2022-07-13 23:54:43,139 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10b0121b6/17783bb5bda64681bfe035350faf86a0 [2022-07-13 23:54:43,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 23:54:43,144 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 23:54:43,146 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 23:54:43,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 23:54:43,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 23:54:43,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 11:54:43" (1/1) ... [2022-07-13 23:54:43,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@632d5969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:54:43, skipping insertion in model container [2022-07-13 23:54:43,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 11:54:43" (1/1) ... [2022-07-13 23:54:43,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 23:54:43,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 23:54:45,323 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i[339370,339383] [2022-07-13 23:54:45,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 23:54:45,477 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 23:54:45,969 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i[339370,339383] [2022-07-13 23:54:45,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 23:54:46,124 INFO L208 MainTranslator]: Completed translation [2022-07-13 23:54:46,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:54:46 WrapperNode [2022-07-13 23:54:46,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 23:54:46,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 23:54:46,127 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 23:54:46,127 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 23:54:46,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:54:46" (1/1) ... [2022-07-13 23:54:46,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:54:46" (1/1) ... [2022-07-13 23:54:46,592 INFO L137 Inliner]: procedures = 326, calls = 4469, calls flagged for inlining = 131, calls inlined = 121, statements flattened = 9217 [2022-07-13 23:54:46,597 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 23:54:46,598 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 23:54:46,598 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 23:54:46,598 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 23:54:46,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:54:46" (1/1) ... [2022-07-13 23:54:46,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:54:46" (1/1) ... [2022-07-13 23:54:46,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:54:46" (1/1) ... [2022-07-13 23:54:46,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:54:46" (1/1) ... [2022-07-13 23:54:46,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:54:46" (1/1) ... [2022-07-13 23:54:46,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:54:46" (1/1) ... [2022-07-13 23:54:47,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:54:46" (1/1) ... [2022-07-13 23:54:47,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 23:54:47,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 23:54:47,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 23:54:47,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 23:54:47,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:54:46" (1/1) ... [2022-07-13 23:54:47,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 23:54:47,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:54:47,081 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 23:54:47,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 23:54:47,126 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_ohci [2022-07-13 23:54:47,127 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_ohci [2022-07-13 23:54:47,127 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-13 23:54:47,127 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-13 23:54:47,127 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-07-13 23:54:47,127 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-07-13 23:54:47,128 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2022-07-13 23:54:47,128 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2022-07-13 23:54:47,128 INFO L130 BoogieDeclarations]: Found specification of procedure start_ed_unlink [2022-07-13 23:54:47,128 INFO L138 BoogieDeclarations]: Found implementation of procedure start_ed_unlink [2022-07-13 23:54:47,128 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_status [2022-07-13 23:54:47,128 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_status [2022-07-13 23:54:47,128 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-07-13 23:54:47,128 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-07-13 23:54:47,129 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_suspend [2022-07-13 23:54:47,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_suspend [2022-07-13 23:54:47,129 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_alloc [2022-07-13 23:54:47,129 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_alloc [2022-07-13 23:54:47,129 INFO L130 BoogieDeclarations]: Found specification of procedure show_list [2022-07-13 23:54:47,129 INFO L138 BoogieDeclarations]: Found implementation of procedure show_list [2022-07-13 23:54:47,129 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_probe [2022-07-13 23:54:47,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_probe [2022-07-13 23:54:47,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-13 23:54:47,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-13 23:54:47,130 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-07-13 23:54:47,130 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-07-13 23:54:47,130 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpup [2022-07-13 23:54:47,130 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpup [2022-07-13 23:54:47,131 INFO L130 BoogieDeclarations]: Found specification of procedure hcfs2string [2022-07-13 23:54:47,131 INFO L138 BoogieDeclarations]: Found implementation of procedure hcfs2string [2022-07-13 23:54:47,131 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_zfmicro [2022-07-13 23:54:47,131 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_zfmicro [2022-07-13 23:54:47,131 INFO L130 BoogieDeclarations]: Found specification of procedure usb_disabled [2022-07-13 23:54:47,131 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_disabled [2022-07-13 23:54:47,131 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_status_data [2022-07-13 23:54:47,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_status_data [2022-07-13 23:54:47,132 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_reset [2022-07-13 23:54:47,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_reset [2022-07-13 23:54:47,132 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_shutdown [2022-07-13 23:54:47,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_shutdown [2022-07-13 23:54:47,132 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-13 23:54:47,132 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-13 23:54:47,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-13 23:54:47,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-13 23:54:47,133 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_intr_mask [2022-07-13 23:54:47,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_intr_mask [2022-07-13 23:54:47,133 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_buffer [2022-07-13 23:54:47,133 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_buffer [2022-07-13 23:54:47,133 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_writel [2022-07-13 23:54:47,134 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_writel [2022-07-13 23:54:47,134 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-13 23:54:47,134 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-13 23:54:47,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-13 23:54:47,134 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-13 23:54:47,134 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hwPSWp [2022-07-13 23:54:47,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hwPSWp [2022-07-13 23:54:47,135 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_resume [2022-07-13 23:54:47,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_resume [2022-07-13 23:54:47,135 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_suspend [2022-07-13 23:54:47,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_suspend [2022-07-13 23:54:47,135 INFO L130 BoogieDeclarations]: Found specification of procedure debug_output [2022-07-13 23:54:47,135 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_output [2022-07-13 23:54:47,135 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-13 23:54:47,135 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-13 23:54:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-13 23:54:47,136 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-13 23:54:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure ed_schedule [2022-07-13 23:54:47,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_schedule [2022-07-13 23:54:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hcd_init [2022-07-13 23:54:47,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hcd_init [2022-07-13 23:54:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_roothub [2022-07-13 23:54:47,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_roothub [2022-07-13 23:54:47,137 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2022-07-13 23:54:47,137 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2022-07-13 23:54:47,137 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-13 23:54:47,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-13 23:54:47,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 23:54:47,137 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_stop [2022-07-13 23:54:47,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_stop [2022-07-13 23:54:47,138 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-13 23:54:47,138 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-13 23:54:47,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-13 23:54:47,138 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2022-07-13 23:54:47,138 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2022-07-13 23:54:47,138 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_remove [2022-07-13 23:54:47,139 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_remove [2022-07-13 23:54:47,139 INFO L130 BoogieDeclarations]: Found specification of procedure check_ed [2022-07-13 23:54:47,139 INFO L138 BoogieDeclarations]: Found implementation of procedure check_ed [2022-07-13 23:54:47,139 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_restart [2022-07-13 23:54:47,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_restart [2022-07-13 23:54:47,139 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_nec [2022-07-13 23:54:47,139 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_nec [2022-07-13 23:54:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-13 23:54:47,140 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-13 23:54:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2022-07-13 23:54:47,140 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2022-07-13 23:54:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure td_free [2022-07-13 23:54:47,140 INFO L138 BoogieDeclarations]: Found implementation of procedure td_free [2022-07-13 23:54:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure broken_suspend [2022-07-13 23:54:47,141 INFO L138 BoogieDeclarations]: Found implementation of procedure broken_suspend [2022-07-13 23:54:47,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 23:54:47,141 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_resume [2022-07-13 23:54:47,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_resume [2022-07-13 23:54:47,141 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_platform_shutdown [2022-07-13 23:54:47,141 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_platform_shutdown [2022-07-13 23:54:47,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-13 23:54:47,141 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_portstatus [2022-07-13 23:54:47,142 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_portstatus [2022-07-13 23:54:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-07-13 23:54:47,142 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-07-13 23:54:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hc_died [2022-07-13 23:54:47,142 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hc_died [2022-07-13 23:54:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_remove [2022-07-13 23:54:47,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_remove [2022-07-13 23:54:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-07-13 23:54:47,143 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-07-13 23:54:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-13 23:54:47,143 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-13 23:54:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-07-13 23:54:47,143 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-07-13 23:54:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-13 23:54:47,144 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-13 23:54:47,144 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-13 23:54:47,144 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-13 23:54:47,144 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-13 23:54:47,144 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-13 23:54:47,144 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_resume [2022-07-13 23:54:47,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_resume [2022-07-13 23:54:47,145 INFO L130 BoogieDeclarations]: Found specification of procedure ed_free [2022-07-13 23:54:47,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_free [2022-07-13 23:54:47,145 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-13 23:54:47,145 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-13 23:54:47,145 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2022-07-13 23:54:47,145 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2022-07-13 23:54:47,145 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_start [2022-07-13 23:54:47,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_start [2022-07-13 23:54:47,146 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump [2022-07-13 23:54:47,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump [2022-07-13 23:54:47,146 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_frame_no [2022-07-13 23:54:47,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_frame_no [2022-07-13 23:54:47,146 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-13 23:54:47,146 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-13 23:54:47,146 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-07-13 23:54:47,147 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-07-13 23:54:47,147 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-13 23:54:47,147 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-13 23:54:47,147 INFO L130 BoogieDeclarations]: Found specification of procedure sb800_prefetch [2022-07-13 23:54:47,147 INFO L138 BoogieDeclarations]: Found implementation of procedure sb800_prefetch [2022-07-13 23:54:47,147 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_control [2022-07-13 23:54:47,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_control [2022-07-13 23:54:47,147 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2022-07-13 23:54:47,148 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2022-07-13 23:54:47,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 23:54:47,148 INFO L130 BoogieDeclarations]: Found specification of procedure finish_urb [2022-07-13 23:54:47,148 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_urb [2022-07-13 23:54:47,148 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_suspend [2022-07-13 23:54:47,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_suspend [2022-07-13 23:54:47,148 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_a [2022-07-13 23:54:47,149 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_a [2022-07-13 23:54:47,149 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_irq [2022-07-13 23:54:47,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_irq [2022-07-13 23:54:47,149 INFO L130 BoogieDeclarations]: Found specification of procedure rh_state_string [2022-07-13 23:54:47,149 INFO L138 BoogieDeclarations]: Found implementation of procedure rh_state_string [2022-07-13 23:54:47,149 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_b [2022-07-13 23:54:47,149 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_b [2022-07-13 23:54:47,149 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_enqueue [2022-07-13 23:54:47,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_enqueue [2022-07-13 23:54:47,150 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_start_port_reset [2022-07-13 23:54:47,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_start_port_reset [2022-07-13 23:54:47,150 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_to_hcd [2022-07-13 23:54:47,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_to_hcd [2022-07-13 23:54:47,150 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_start [2022-07-13 23:54:47,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_start [2022-07-13 23:54:47,150 INFO L130 BoogieDeclarations]: Found specification of procedure td_alloc [2022-07-13 23:54:47,151 INFO L138 BoogieDeclarations]: Found implementation of procedure td_alloc [2022-07-13 23:54:47,151 INFO L130 BoogieDeclarations]: Found specification of procedure find_head [2022-07-13 23:54:47,151 INFO L138 BoogieDeclarations]: Found implementation of procedure find_head [2022-07-13 23:54:47,151 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-13 23:54:47,151 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-13 23:54:47,151 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_run [2022-07-13 23:54:47,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_run [2022-07-13 23:54:47,152 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-07-13 23:54:47,152 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-07-13 23:54:47,152 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_endpoint_disable [2022-07-13 23:54:47,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_endpoint_disable [2022-07-13 23:54:47,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 23:54:47,152 INFO L130 BoogieDeclarations]: Found specification of procedure takeback_td [2022-07-13 23:54:47,152 INFO L138 BoogieDeclarations]: Found implementation of procedure takeback_td [2022-07-13 23:54:47,152 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdprefetch [2022-07-13 23:54:47,153 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdprefetch [2022-07-13 23:54:47,153 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-13 23:54:47,153 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-13 23:54:47,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-13 23:54:47,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-13 23:54:47,153 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_readl [2022-07-13 23:54:47,153 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_readl [2022-07-13 23:54:47,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-13 23:54:47,154 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2022-07-13 23:54:47,154 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2022-07-13 23:54:47,154 INFO L130 BoogieDeclarations]: Found specification of procedure dl_done_list [2022-07-13 23:54:47,154 INFO L138 BoogieDeclarations]: Found implementation of procedure dl_done_list [2022-07-13 23:54:47,154 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_poll_rh_status [2022-07-13 23:54:47,154 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_poll_rh_status [2022-07-13 23:54:47,154 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-13 23:54:47,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-13 23:54:47,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 23:54:47,155 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_reinit [2022-07-13 23:54:47,155 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_reinit [2022-07-13 23:54:47,155 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2022-07-13 23:54:47,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2022-07-13 23:54:47,155 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-13 23:54:47,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-13 23:54:47,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-13 23:54:47,156 INFO L130 BoogieDeclarations]: Found specification of procedure td_done [2022-07-13 23:54:47,156 INFO L138 BoogieDeclarations]: Found implementation of procedure td_done [2022-07-13 23:54:47,156 INFO L130 BoogieDeclarations]: Found specification of procedure td_fill [2022-07-13 23:54:47,156 INFO L138 BoogieDeclarations]: Found implementation of procedure td_fill [2022-07-13 23:54:47,156 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_dequeue [2022-07-13 23:54:47,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_dequeue [2022-07-13 23:54:47,157 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-13 23:54:47,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-13 23:54:47,157 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_init [2022-07-13 23:54:47,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_init [2022-07-13 23:54:47,157 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-13 23:54:47,157 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-13 23:54:47,157 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc16 [2022-07-13 23:54:47,157 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc16 [2022-07-13 23:54:47,158 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-13 23:54:47,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-13 23:54:47,158 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdiso [2022-07-13 23:54:47,158 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdiso [2022-07-13 23:54:47,158 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2022-07-13 23:54:47,158 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2022-07-13 23:54:47,158 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-13 23:54:47,158 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-13 23:54:47,159 INFO L130 BoogieDeclarations]: Found specification of procedure ed_deschedule [2022-07-13 23:54:47,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_deschedule [2022-07-13 23:54:47,159 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_resume_root_hub [2022-07-13 23:54:47,159 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_resume_root_hub [2022-07-13 23:54:47,159 INFO L130 BoogieDeclarations]: Found specification of procedure urb_free_priv [2022-07-13 23:54:47,159 INFO L138 BoogieDeclarations]: Found implementation of procedure urb_free_priv [2022-07-13 23:54:47,159 INFO L130 BoogieDeclarations]: Found specification of procedure finish_unlinks [2022-07-13 23:54:47,159 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_unlinks [2022-07-13 23:54:47,160 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpu [2022-07-13 23:54:47,160 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpu [2022-07-13 23:54:47,160 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2022-07-13 23:54:47,160 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2022-07-13 23:54:47,160 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_status [2022-07-13 23:54:47,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_status [2022-07-13 23:54:47,160 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_print_eds [2022-07-13 23:54:47,161 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_print_eds [2022-07-13 23:54:47,161 INFO L130 BoogieDeclarations]: Found specification of procedure debug_close [2022-07-13 23:54:47,161 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_close [2022-07-13 23:54:47,161 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_get_frame [2022-07-13 23:54:47,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_get_frame [2022-07-13 23:54:47,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2022-07-13 23:54:47,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2022-07-13 23:54:47,161 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-13 23:54:47,162 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-13 23:54:47,162 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-13 23:54:47,162 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-13 23:54:47,162 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc32 [2022-07-13 23:54:47,162 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc32 [2022-07-13 23:54:47,163 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-13 23:54:47,163 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-13 23:54:47,163 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_usb_reset [2022-07-13 23:54:47,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_usb_reset [2022-07-13 23:54:47,163 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_resume [2022-07-13 23:54:47,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_resume [2022-07-13 23:54:47,163 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-13 23:54:47,163 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-13 23:54:47,164 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-13 23:54:47,164 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-13 23:54:47,164 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_suspend [2022-07-13 23:54:47,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_suspend [2022-07-13 23:54:47,164 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_reset [2022-07-13 23:54:47,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_reset [2022-07-13 23:54:47,164 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_shutdown [2022-07-13 23:54:47,164 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_shutdown [2022-07-13 23:54:47,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 23:54:47,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 23:54:47,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 23:54:47,165 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2022-07-13 23:54:47,165 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2022-07-13 23:54:48,285 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 23:54:48,288 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 23:54:55,908 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 23:54:55,930 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 23:54:55,936 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-13 23:54:55,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 11:54:55 BoogieIcfgContainer [2022-07-13 23:54:55,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 23:54:55,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 23:54:55,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 23:54:55,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 23:54:55,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 11:54:43" (1/3) ... [2022-07-13 23:54:55,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4b7078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 11:54:55, skipping insertion in model container [2022-07-13 23:54:55,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:54:46" (2/3) ... [2022-07-13 23:54:55,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4b7078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 11:54:55, skipping insertion in model container [2022-07-13 23:54:55,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 11:54:55" (3/3) ... [2022-07-13 23:54:55,952 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2022-07-13 23:54:55,967 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 23:54:55,968 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 23:54:56,083 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 23:54:56,089 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2528814d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5ef91b6d [2022-07-13 23:54:56,089 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 23:54:56,103 INFO L276 IsEmpty]: Start isEmpty. Operand has 3516 states, 2534 states have (on average 1.436069455406472) internal successors, (3639), 2605 states have internal predecessors, (3639), 848 states have call successors, (848), 136 states have call predecessors, (848), 136 states have return successors, (848), 839 states have call predecessors, (848), 848 states have call successors, (848) [2022-07-13 23:54:56,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-13 23:54:56,113 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:54:56,113 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:54:56,114 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:54:56,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:54:56,118 INFO L85 PathProgramCache]: Analyzing trace with hash -358052195, now seen corresponding path program 1 times [2022-07-13 23:54:56,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:54:56,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103068442] [2022-07-13 23:54:56,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:54:56,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:54:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:54:56,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:54:56,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:54:56,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103068442] [2022-07-13 23:54:56,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103068442] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:54:56,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:54:56,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 23:54:56,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347484314] [2022-07-13 23:54:56,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:54:56,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:54:56,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:54:56,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:54:56,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:54:56,869 INFO L87 Difference]: Start difference. First operand has 3516 states, 2534 states have (on average 1.436069455406472) internal successors, (3639), 2605 states have internal predecessors, (3639), 848 states have call successors, (848), 136 states have call predecessors, (848), 136 states have return successors, (848), 839 states have call predecessors, (848), 848 states have call successors, (848) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 23:54:57,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:54:57,412 INFO L93 Difference]: Finished difference Result 10492 states and 16246 transitions. [2022-07-13 23:54:57,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:54:57,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-07-13 23:54:57,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:54:57,490 INFO L225 Difference]: With dead ends: 10492 [2022-07-13 23:54:57,491 INFO L226 Difference]: Without dead ends: 6969 [2022-07-13 23:54:57,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:54:57,544 INFO L413 NwaCegarLoop]: 6969 mSDtfsCounter, 5154 mSDsluCounter, 5179 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5154 SdHoareTripleChecker+Valid, 12148 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 23:54:57,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5154 Valid, 12148 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 23:54:57,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6969 states. [2022-07-13 23:54:57,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6969 to 6955. [2022-07-13 23:54:57,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6955 states, 5006 states have (on average 1.3933280063923292) internal successors, (6975), 5140 states have internal predecessors, (6975), 1678 states have call successors, (1678), 271 states have call predecessors, (1678), 270 states have return successors, (1672), 1653 states have call predecessors, (1672), 1672 states have call successors, (1672) [2022-07-13 23:54:58,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6955 states to 6955 states and 10325 transitions. [2022-07-13 23:54:58,137 INFO L78 Accepts]: Start accepts. Automaton has 6955 states and 10325 transitions. Word has length 14 [2022-07-13 23:54:58,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:54:58,138 INFO L495 AbstractCegarLoop]: Abstraction has 6955 states and 10325 transitions. [2022-07-13 23:54:58,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 23:54:58,138 INFO L276 IsEmpty]: Start isEmpty. Operand 6955 states and 10325 transitions. [2022-07-13 23:54:58,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-13 23:54:58,146 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:54:58,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:54:58,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 23:54:58,146 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:54:58,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:54:58,149 INFO L85 PathProgramCache]: Analyzing trace with hash -687216903, now seen corresponding path program 1 times [2022-07-13 23:54:58,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:54:58,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689716058] [2022-07-13 23:54:58,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:54:58,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:54:58,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:54:58,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:54:58,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:54:58,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689716058] [2022-07-13 23:54:58,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689716058] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:54:58,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:54:58,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 23:54:58,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683401277] [2022-07-13 23:54:58,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:54:58,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:54:58,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:54:58,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:54:58,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:54:58,504 INFO L87 Difference]: Start difference. First operand 6955 states and 10325 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 23:54:58,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:54:58,968 INFO L93 Difference]: Finished difference Result 20815 states and 30895 transitions. [2022-07-13 23:54:58,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:54:58,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-07-13 23:54:58,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:54:59,092 INFO L225 Difference]: With dead ends: 20815 [2022-07-13 23:54:59,093 INFO L226 Difference]: Without dead ends: 13863 [2022-07-13 23:54:59,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:54:59,144 INFO L413 NwaCegarLoop]: 6437 mSDtfsCounter, 5146 mSDsluCounter, 5173 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5146 SdHoareTripleChecker+Valid, 11610 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 23:54:59,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5146 Valid, 11610 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 23:54:59,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13863 states. [2022-07-13 23:54:59,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13863 to 13849. [2022-07-13 23:54:59,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13849 states, 9966 states have (on average 1.3924342765402369) internal successors, (13877), 10230 states have internal predecessors, (13877), 3342 states have call successors, (3342), 541 states have call predecessors, (3342), 540 states have return successors, (3336), 3297 states have call predecessors, (3336), 3336 states have call successors, (3336) [2022-07-13 23:54:59,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13849 states to 13849 states and 20555 transitions. [2022-07-13 23:54:59,966 INFO L78 Accepts]: Start accepts. Automaton has 13849 states and 20555 transitions. Word has length 16 [2022-07-13 23:54:59,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:54:59,967 INFO L495 AbstractCegarLoop]: Abstraction has 13849 states and 20555 transitions. [2022-07-13 23:54:59,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 23:54:59,968 INFO L276 IsEmpty]: Start isEmpty. Operand 13849 states and 20555 transitions. [2022-07-13 23:54:59,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-13 23:54:59,970 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:54:59,970 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:54:59,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 23:54:59,971 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:54:59,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:54:59,979 INFO L85 PathProgramCache]: Analyzing trace with hash 360574127, now seen corresponding path program 1 times [2022-07-13 23:54:59,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:54:59,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151180791] [2022-07-13 23:54:59,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:54:59,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:55:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:00,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:55:00,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:55:00,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151180791] [2022-07-13 23:55:00,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151180791] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:55:00,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:55:00,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 23:55:00,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987588294] [2022-07-13 23:55:00,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:55:00,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:55:00,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:55:00,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:55:00,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:55:00,331 INFO L87 Difference]: Start difference. First operand 13849 states and 20555 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 23:55:01,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:55:01,329 INFO L93 Difference]: Finished difference Result 41395 states and 61442 transitions. [2022-07-13 23:55:01,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:55:01,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-07-13 23:55:01,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:55:01,556 INFO L225 Difference]: With dead ends: 41395 [2022-07-13 23:55:01,556 INFO L226 Difference]: Without dead ends: 27549 [2022-07-13 23:55:01,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:55:01,632 INFO L413 NwaCegarLoop]: 7623 mSDtfsCounter, 5144 mSDsluCounter, 5173 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5144 SdHoareTripleChecker+Valid, 12796 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 23:55:01,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5144 Valid, 12796 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 23:55:01,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27549 states. [2022-07-13 23:55:02,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27549 to 27535. [2022-07-13 23:55:02,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27535 states, 19807 states have (on average 1.3918311707982027) internal successors, (27568), 20330 states have internal predecessors, (27568), 6654 states have call successors, (6654), 1074 states have call predecessors, (6654), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2022-07-13 23:55:02,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27535 states to 27535 states and 40870 transitions. [2022-07-13 23:55:02,941 INFO L78 Accepts]: Start accepts. Automaton has 27535 states and 40870 transitions. Word has length 18 [2022-07-13 23:55:02,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:55:02,942 INFO L495 AbstractCegarLoop]: Abstraction has 27535 states and 40870 transitions. [2022-07-13 23:55:02,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 23:55:02,942 INFO L276 IsEmpty]: Start isEmpty. Operand 27535 states and 40870 transitions. [2022-07-13 23:55:02,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-13 23:55:02,948 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:55:02,948 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:55:02,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 23:55:02,949 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:55:02,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:55:02,950 INFO L85 PathProgramCache]: Analyzing trace with hash 230013637, now seen corresponding path program 1 times [2022-07-13 23:55:02,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:55:02,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601886374] [2022-07-13 23:55:02,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:55:02,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:55:03,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:03,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 23:55:03,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:03,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:55:03,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:55:03,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601886374] [2022-07-13 23:55:03,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601886374] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:55:03,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:55:03,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 23:55:03,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146770678] [2022-07-13 23:55:03,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:55:03,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:55:03,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:55:03,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:55:03,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:55:03,279 INFO L87 Difference]: Start difference. First operand 27535 states and 40870 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 23:55:04,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:55:04,078 INFO L93 Difference]: Finished difference Result 27558 states and 40898 transitions. [2022-07-13 23:55:04,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:55:04,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2022-07-13 23:55:04,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:55:04,257 INFO L225 Difference]: With dead ends: 27558 [2022-07-13 23:55:04,257 INFO L226 Difference]: Without dead ends: 27547 [2022-07-13 23:55:04,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:55:04,290 INFO L413 NwaCegarLoop]: 5203 mSDtfsCounter, 5186 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5186 SdHoareTripleChecker+Valid, 5216 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 23:55:04,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5186 Valid, 5216 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 23:55:04,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27547 states. [2022-07-13 23:55:05,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27547 to 27536. [2022-07-13 23:55:05,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27536 states, 19808 states have (on average 1.3918113893376414) internal successors, (27569), 20331 states have internal predecessors, (27569), 6654 states have call successors, (6654), 1074 states have call predecessors, (6654), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2022-07-13 23:55:05,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27536 states to 27536 states and 40871 transitions. [2022-07-13 23:55:05,576 INFO L78 Accepts]: Start accepts. Automaton has 27536 states and 40871 transitions. Word has length 29 [2022-07-13 23:55:05,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:55:05,577 INFO L495 AbstractCegarLoop]: Abstraction has 27536 states and 40871 transitions. [2022-07-13 23:55:05,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 23:55:05,577 INFO L276 IsEmpty]: Start isEmpty. Operand 27536 states and 40871 transitions. [2022-07-13 23:55:05,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-13 23:55:05,582 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:55:05,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:55:05,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 23:55:05,582 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:55:05,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:55:05,583 INFO L85 PathProgramCache]: Analyzing trace with hash 287271939, now seen corresponding path program 1 times [2022-07-13 23:55:05,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:55:05,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062612343] [2022-07-13 23:55:05,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:55:05,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:55:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:05,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 23:55:05,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:05,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:55:05,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:55:05,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062612343] [2022-07-13 23:55:05,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062612343] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:55:05,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:55:05,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 23:55:05,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15813198] [2022-07-13 23:55:05,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:55:05,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:55:05,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:55:05,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:55:05,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:55:05,882 INFO L87 Difference]: Start difference. First operand 27536 states and 40871 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 23:55:06,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:55:06,619 INFO L93 Difference]: Finished difference Result 27538 states and 40872 transitions. [2022-07-13 23:55:06,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:55:06,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2022-07-13 23:55:06,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:55:06,786 INFO L225 Difference]: With dead ends: 27538 [2022-07-13 23:55:06,787 INFO L226 Difference]: Without dead ends: 27535 [2022-07-13 23:55:06,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:55:06,807 INFO L413 NwaCegarLoop]: 5188 mSDtfsCounter, 5166 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5166 SdHoareTripleChecker+Valid, 5188 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 23:55:06,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5166 Valid, 5188 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 23:55:06,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27535 states. [2022-07-13 23:55:07,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27535 to 27535. [2022-07-13 23:55:07,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27535 states, 19808 states have (on average 1.3917609046849757) internal successors, (27568), 20330 states have internal predecessors, (27568), 6653 states have call successors, (6653), 1074 states have call predecessors, (6653), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2022-07-13 23:55:07,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27535 states to 27535 states and 40869 transitions. [2022-07-13 23:55:07,963 INFO L78 Accepts]: Start accepts. Automaton has 27535 states and 40869 transitions. Word has length 29 [2022-07-13 23:55:07,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:55:07,964 INFO L495 AbstractCegarLoop]: Abstraction has 27535 states and 40869 transitions. [2022-07-13 23:55:07,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 23:55:07,964 INFO L276 IsEmpty]: Start isEmpty. Operand 27535 states and 40869 transitions. [2022-07-13 23:55:07,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-13 23:55:07,967 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:55:07,968 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:55:07,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 23:55:07,968 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:55:07,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:55:07,969 INFO L85 PathProgramCache]: Analyzing trace with hash 314027652, now seen corresponding path program 1 times [2022-07-13 23:55:07,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:55:07,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709508145] [2022-07-13 23:55:07,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:55:07,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:55:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:08,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 23:55:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:08,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:55:08,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:55:08,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709508145] [2022-07-13 23:55:08,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709508145] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:55:08,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:55:08,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 23:55:08,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395586928] [2022-07-13 23:55:08,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:55:08,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:55:08,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:55:08,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:55:08,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:55:08,230 INFO L87 Difference]: Start difference. First operand 27535 states and 40869 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 23:55:08,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:55:08,945 INFO L93 Difference]: Finished difference Result 27537 states and 40870 transitions. [2022-07-13 23:55:08,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:55:08,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-07-13 23:55:08,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:55:09,142 INFO L225 Difference]: With dead ends: 27537 [2022-07-13 23:55:09,142 INFO L226 Difference]: Without dead ends: 27534 [2022-07-13 23:55:09,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:55:09,170 INFO L413 NwaCegarLoop]: 5186 mSDtfsCounter, 5163 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5163 SdHoareTripleChecker+Valid, 5186 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 23:55:09,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5163 Valid, 5186 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 23:55:09,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27534 states. [2022-07-13 23:55:10,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27534 to 27534. [2022-07-13 23:55:10,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27534 states, 19808 states have (on average 1.3917104200323103) internal successors, (27567), 20329 states have internal predecessors, (27567), 6652 states have call successors, (6652), 1074 states have call predecessors, (6652), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2022-07-13 23:55:10,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27534 states to 27534 states and 40867 transitions. [2022-07-13 23:55:10,463 INFO L78 Accepts]: Start accepts. Automaton has 27534 states and 40867 transitions. Word has length 30 [2022-07-13 23:55:10,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:55:10,463 INFO L495 AbstractCegarLoop]: Abstraction has 27534 states and 40867 transitions. [2022-07-13 23:55:10,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 23:55:10,464 INFO L276 IsEmpty]: Start isEmpty. Operand 27534 states and 40867 transitions. [2022-07-13 23:55:10,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-13 23:55:10,469 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:55:10,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:55:10,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 23:55:10,470 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:55:10,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:55:10,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1143459622, now seen corresponding path program 1 times [2022-07-13 23:55:10,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:55:10,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472046672] [2022-07-13 23:55:10,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:55:10,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:55:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:10,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 23:55:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:10,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:55:10,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:55:10,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472046672] [2022-07-13 23:55:10,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472046672] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:55:10,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:55:10,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 23:55:10,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445658365] [2022-07-13 23:55:10,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:55:10,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:55:10,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:55:10,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:55:10,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:55:10,700 INFO L87 Difference]: Start difference. First operand 27534 states and 40867 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 23:55:11,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:55:11,842 INFO L93 Difference]: Finished difference Result 42791 states and 62688 transitions. [2022-07-13 23:55:11,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:55:11,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-07-13 23:55:11,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:55:12,273 INFO L225 Difference]: With dead ends: 42791 [2022-07-13 23:55:12,274 INFO L226 Difference]: Without dead ends: 42787 [2022-07-13 23:55:12,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:55:12,299 INFO L413 NwaCegarLoop]: 6167 mSDtfsCounter, 5126 mSDsluCounter, 3146 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5126 SdHoareTripleChecker+Valid, 9313 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 23:55:12,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5126 Valid, 9313 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 23:55:12,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42787 states. [2022-07-13 23:55:13,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42787 to 42785. [2022-07-13 23:55:13,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42785 states, 30651 states have (on average 1.3716355094450425) internal successors, (42042), 31429 states have internal predecessors, (42042), 10318 states have call successors, (10318), 1816 states have call predecessors, (10318), 1815 states have return successors, (10316), 10202 states have call predecessors, (10316), 10316 states have call successors, (10316) [2022-07-13 23:55:13,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42785 states to 42785 states and 62676 transitions. [2022-07-13 23:55:13,844 INFO L78 Accepts]: Start accepts. Automaton has 42785 states and 62676 transitions. Word has length 31 [2022-07-13 23:55:13,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:55:13,844 INFO L495 AbstractCegarLoop]: Abstraction has 42785 states and 62676 transitions. [2022-07-13 23:55:13,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 23:55:13,844 INFO L276 IsEmpty]: Start isEmpty. Operand 42785 states and 62676 transitions. [2022-07-13 23:55:13,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-13 23:55:13,848 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:55:13,848 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:55:13,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 23:55:13,849 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:55:13,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:55:13,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1086051783, now seen corresponding path program 1 times [2022-07-13 23:55:13,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:55:13,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039761021] [2022-07-13 23:55:13,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:55:13,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:55:13,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:14,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 23:55:14,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:14,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:55:14,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:55:14,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039761021] [2022-07-13 23:55:14,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039761021] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:55:14,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:55:14,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 23:55:14,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483337630] [2022-07-13 23:55:14,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:55:14,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:55:14,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:55:14,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:55:14,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:55:14,102 INFO L87 Difference]: Start difference. First operand 42785 states and 62676 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 23:55:15,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:55:15,125 INFO L93 Difference]: Finished difference Result 42787 states and 62677 transitions. [2022-07-13 23:55:15,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:55:15,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-07-13 23:55:15,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:55:15,395 INFO L225 Difference]: With dead ends: 42787 [2022-07-13 23:55:15,396 INFO L226 Difference]: Without dead ends: 42698 [2022-07-13 23:55:15,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:55:15,457 INFO L413 NwaCegarLoop]: 5181 mSDtfsCounter, 5155 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5155 SdHoareTripleChecker+Valid, 5181 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 23:55:15,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5155 Valid, 5181 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 23:55:15,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42698 states. [2022-07-13 23:55:16,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42698 to 42697. [2022-07-13 23:55:16,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42697 states, 30604 states have (on average 1.371683440073193) internal successors, (41979), 31374 states have internal predecessors, (41979), 10285 states have call successors, (10285), 1808 states have call predecessors, (10285), 1807 states have return successors, (10284), 10177 states have call predecessors, (10284), 10284 states have call successors, (10284) [2022-07-13 23:55:17,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42697 states to 42697 states and 62548 transitions. [2022-07-13 23:55:17,090 INFO L78 Accepts]: Start accepts. Automaton has 42697 states and 62548 transitions. Word has length 32 [2022-07-13 23:55:17,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:55:17,090 INFO L495 AbstractCegarLoop]: Abstraction has 42697 states and 62548 transitions. [2022-07-13 23:55:17,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 23:55:17,091 INFO L276 IsEmpty]: Start isEmpty. Operand 42697 states and 62548 transitions. [2022-07-13 23:55:17,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-13 23:55:17,104 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:55:17,104 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:55:17,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 23:55:17,105 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:55:17,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:55:17,105 INFO L85 PathProgramCache]: Analyzing trace with hash -481476166, now seen corresponding path program 1 times [2022-07-13 23:55:17,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:55:17,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736302329] [2022-07-13 23:55:17,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:55:17,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:55:17,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:17,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 23:55:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:17,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 23:55:17,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:17,613 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:55:17,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:55:17,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736302329] [2022-07-13 23:55:17,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736302329] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:55:17,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:55:17,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 23:55:17,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120622141] [2022-07-13 23:55:17,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:55:17,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 23:55:17,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:55:17,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 23:55:17,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 23:55:17,616 INFO L87 Difference]: Start difference. First operand 42697 states and 62548 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 23:55:19,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:55:19,135 INFO L93 Difference]: Finished difference Result 85415 states and 125125 transitions. [2022-07-13 23:55:19,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 23:55:19,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2022-07-13 23:55:19,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:55:19,393 INFO L225 Difference]: With dead ends: 85415 [2022-07-13 23:55:19,394 INFO L226 Difference]: Without dead ends: 42697 [2022-07-13 23:55:19,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:55:19,584 INFO L413 NwaCegarLoop]: 5159 mSDtfsCounter, 3 mSDsluCounter, 10312 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 15471 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 23:55:19,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 15471 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 23:55:19,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42697 states. [2022-07-13 23:55:20,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42697 to 42697. [2022-07-13 23:55:20,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42697 states, 30604 states have (on average 1.3714220363351195) internal successors, (41971), 31374 states have internal predecessors, (41971), 10285 states have call successors, (10285), 1808 states have call predecessors, (10285), 1807 states have return successors, (10284), 10177 states have call predecessors, (10284), 10284 states have call successors, (10284) [2022-07-13 23:55:21,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42697 states to 42697 states and 62540 transitions. [2022-07-13 23:55:21,080 INFO L78 Accepts]: Start accepts. Automaton has 42697 states and 62540 transitions. Word has length 48 [2022-07-13 23:55:21,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:55:21,080 INFO L495 AbstractCegarLoop]: Abstraction has 42697 states and 62540 transitions. [2022-07-13 23:55:21,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 23:55:21,081 INFO L276 IsEmpty]: Start isEmpty. Operand 42697 states and 62540 transitions. [2022-07-13 23:55:21,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-13 23:55:21,100 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:55:21,100 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:55:21,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 23:55:21,101 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:55:21,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:55:21,101 INFO L85 PathProgramCache]: Analyzing trace with hash -766261442, now seen corresponding path program 1 times [2022-07-13 23:55:21,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:55:21,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426656962] [2022-07-13 23:55:21,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:55:21,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:55:21,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:21,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 23:55:21,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:21,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 23:55:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:21,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 23:55:21,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:21,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-13 23:55:21,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:21,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:55:21,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:21,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-13 23:55:21,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:21,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-13 23:55:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:21,489 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:55:21,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:55:21,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426656962] [2022-07-13 23:55:21,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426656962] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:55:21,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:55:21,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 23:55:21,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921622034] [2022-07-13 23:55:21,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:55:21,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 23:55:21,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:55:21,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 23:55:21,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 23:55:21,493 INFO L87 Difference]: Start difference. First operand 42697 states and 62540 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-13 23:55:30,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:55:30,654 INFO L93 Difference]: Finished difference Result 115753 states and 171080 transitions. [2022-07-13 23:55:30,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 23:55:30,654 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 77 [2022-07-13 23:55:30,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:55:31,070 INFO L225 Difference]: With dead ends: 115753 [2022-07-13 23:55:31,070 INFO L226 Difference]: Without dead ends: 73059 [2022-07-13 23:55:31,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:55:31,225 INFO L413 NwaCegarLoop]: 9987 mSDtfsCounter, 6148 mSDsluCounter, 9346 mSDsCounter, 0 mSdLazyCounter, 3496 mSolverCounterSat, 1842 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6969 SdHoareTripleChecker+Valid, 19333 SdHoareTripleChecker+Invalid, 5338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1842 IncrementalHoareTripleChecker+Valid, 3496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:55:31,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6969 Valid, 19333 Invalid, 5338 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1842 Valid, 3496 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-07-13 23:55:31,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73059 states. [2022-07-13 23:55:33,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73059 to 62920. [2022-07-13 23:55:33,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62920 states, 45112 states have (on average 1.372007448129101) internal successors, (61894), 46248 states have internal predecessors, (61894), 15153 states have call successors, (15153), 2655 states have call predecessors, (15153), 2654 states have return successors, (15152), 14994 states have call predecessors, (15152), 15152 states have call successors, (15152) [2022-07-13 23:55:34,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62920 states to 62920 states and 92199 transitions. [2022-07-13 23:55:34,171 INFO L78 Accepts]: Start accepts. Automaton has 62920 states and 92199 transitions. Word has length 77 [2022-07-13 23:55:34,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:55:34,171 INFO L495 AbstractCegarLoop]: Abstraction has 62920 states and 92199 transitions. [2022-07-13 23:55:34,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-13 23:55:34,172 INFO L276 IsEmpty]: Start isEmpty. Operand 62920 states and 92199 transitions. [2022-07-13 23:55:34,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-13 23:55:34,187 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:55:34,187 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:55:34,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-13 23:55:34,188 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:55:34,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:55:34,188 INFO L85 PathProgramCache]: Analyzing trace with hash -465588126, now seen corresponding path program 1 times [2022-07-13 23:55:34,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:55:34,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55334692] [2022-07-13 23:55:34,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:55:34,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:55:34,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:34,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 23:55:34,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:34,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 23:55:34,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:34,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 23:55:34,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:34,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-13 23:55:34,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:34,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:55:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:34,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-13 23:55:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:34,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 23:55:34,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:34,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:55:34,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:55:34,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55334692] [2022-07-13 23:55:34,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55334692] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:55:34,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:55:34,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 23:55:34,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777863143] [2022-07-13 23:55:34,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:55:34,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 23:55:34,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:55:34,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 23:55:34,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 23:55:34,480 INFO L87 Difference]: Start difference. First operand 62920 states and 92199 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-13 23:55:44,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:55:44,350 INFO L93 Difference]: Finished difference Result 169908 states and 251255 transitions. [2022-07-13 23:55:44,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 23:55:44,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 75 [2022-07-13 23:55:44,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:55:45,057 INFO L225 Difference]: With dead ends: 169908 [2022-07-13 23:55:45,057 INFO L226 Difference]: Without dead ends: 106991 [2022-07-13 23:55:45,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:55:45,335 INFO L413 NwaCegarLoop]: 9905 mSDtfsCounter, 6192 mSDsluCounter, 9315 mSDsCounter, 0 mSdLazyCounter, 3495 mSolverCounterSat, 1854 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7015 SdHoareTripleChecker+Valid, 19220 SdHoareTripleChecker+Invalid, 5349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1854 IncrementalHoareTripleChecker+Valid, 3495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-07-13 23:55:45,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7015 Valid, 19220 Invalid, 5349 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1854 Valid, 3495 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-07-13 23:55:45,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106991 states. [2022-07-13 23:55:48,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106991 to 92134. [2022-07-13 23:55:48,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92134 states, 66080 states have (on average 1.3728510895883776) internal successors, (90718), 67746 states have internal predecessors, (90718), 22185 states have call successors, (22185), 3869 states have call predecessors, (22185), 3868 states have return successors, (22184), 21952 states have call predecessors, (22184), 22184 states have call successors, (22184) [2022-07-13 23:55:49,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92134 states to 92134 states and 135087 transitions. [2022-07-13 23:55:49,158 INFO L78 Accepts]: Start accepts. Automaton has 92134 states and 135087 transitions. Word has length 75 [2022-07-13 23:55:49,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:55:49,159 INFO L495 AbstractCegarLoop]: Abstraction has 92134 states and 135087 transitions. [2022-07-13 23:55:49,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-13 23:55:49,159 INFO L276 IsEmpty]: Start isEmpty. Operand 92134 states and 135087 transitions. [2022-07-13 23:55:49,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-13 23:55:49,179 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:55:49,179 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:55:49,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-13 23:55:49,180 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:55:49,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:55:49,180 INFO L85 PathProgramCache]: Analyzing trace with hash -159959948, now seen corresponding path program 1 times [2022-07-13 23:55:49,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:55:49,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047862916] [2022-07-13 23:55:49,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:55:49,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:55:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:49,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 23:55:49,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:49,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 23:55:49,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:49,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 23:55:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:49,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-13 23:55:49,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:49,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:55:49,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:49,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-13 23:55:49,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:49,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 23:55:49,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:55:49,940 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:55:49,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:55:49,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047862916] [2022-07-13 23:55:49,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047862916] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:55:49,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:55:49,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 23:55:49,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132486852] [2022-07-13 23:55:49,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:55:49,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 23:55:49,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:55:49,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 23:55:49,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 23:55:49,943 INFO L87 Difference]: Start difference. First operand 92134 states and 135087 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-13 23:55:59,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:55:59,693 INFO L93 Difference]: Finished difference Result 247430 states and 366180 transitions. [2022-07-13 23:55:59,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 23:55:59,694 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 79 [2022-07-13 23:55:59,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:56:00,956 INFO L225 Difference]: With dead ends: 247430 [2022-07-13 23:56:00,956 INFO L226 Difference]: Without dead ends: 155299 [2022-07-13 23:56:01,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:56:01,336 INFO L413 NwaCegarLoop]: 10021 mSDtfsCounter, 6150 mSDsluCounter, 9381 mSDsCounter, 0 mSdLazyCounter, 3495 mSolverCounterSat, 1835 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6971 SdHoareTripleChecker+Valid, 19402 SdHoareTripleChecker+Invalid, 5330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1835 IncrementalHoareTripleChecker+Valid, 3495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-07-13 23:56:01,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6971 Valid, 19402 Invalid, 5330 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1835 Valid, 3495 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-07-13 23:56:01,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155299 states. [2022-07-13 23:56:05,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155299 to 133715. [2022-07-13 23:56:06,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133715 states, 95943 states have (on average 1.374076274454624) internal successors, (131833), 98366 states have internal predecessors, (131833), 32195 states have call successors, (32195), 5577 states have call predecessors, (32195), 5576 states have return successors, (32194), 31856 states have call predecessors, (32194), 32194 states have call successors, (32194) [2022-07-13 23:56:07,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133715 states to 133715 states and 196222 transitions. [2022-07-13 23:56:07,145 INFO L78 Accepts]: Start accepts. Automaton has 133715 states and 196222 transitions. Word has length 79 [2022-07-13 23:56:07,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:56:07,146 INFO L495 AbstractCegarLoop]: Abstraction has 133715 states and 196222 transitions. [2022-07-13 23:56:07,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-13 23:56:07,146 INFO L276 IsEmpty]: Start isEmpty. Operand 133715 states and 196222 transitions. [2022-07-13 23:56:07,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-13 23:56:07,183 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:56:07,183 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:56:07,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-13 23:56:07,184 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:56:07,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:56:07,184 INFO L85 PathProgramCache]: Analyzing trace with hash -646528785, now seen corresponding path program 1 times [2022-07-13 23:56:07,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:56:07,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061993721] [2022-07-13 23:56:07,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:56:07,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:56:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:56:07,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 23:56:07,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:56:07,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-13 23:56:07,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:56:07,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 23:56:07,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:56:07,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-13 23:56:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:56:07,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:56:07,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:56:07,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-13 23:56:07,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:56:07,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-13 23:56:07,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:56:07,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:56:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:56:07,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:56:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:56:07,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:56:07,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:56:07,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:56:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:56:07,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-13 23:56:07,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:56:07,633 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-13 23:56:07,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:56:07,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061993721] [2022-07-13 23:56:07,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061993721] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:56:07,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:56:07,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 23:56:07,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241695620] [2022-07-13 23:56:07,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:56:07,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 23:56:07,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:56:07,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 23:56:07,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:56:07,636 INFO L87 Difference]: Start difference. First operand 133715 states and 196222 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12)