./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 ae007674 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-dev-ae00767 [2021-12-28 03:50:46,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 03:50:46,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 03:50:47,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 03:50:47,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 03:50:47,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 03:50:47,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 03:50:47,008 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 03:50:47,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 03:50:47,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 03:50:47,011 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 03:50:47,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 03:50:47,012 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 03:50:47,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 03:50:47,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 03:50:47,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 03:50:47,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 03:50:47,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 03:50:47,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 03:50:47,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 03:50:47,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 03:50:47,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 03:50:47,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 03:50:47,020 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 03:50:47,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 03:50:47,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 03:50:47,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 03:50:47,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 03:50:47,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 03:50:47,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 03:50:47,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 03:50:47,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 03:50:47,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 03:50:47,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 03:50:47,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 03:50:47,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 03:50:47,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 03:50:47,028 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 03:50:47,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 03:50:47,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 03:50:47,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 03:50:47,030 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 03:50:47,044 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 03:50:47,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 03:50:47,045 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 03:50:47,045 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 03:50:47,046 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 03:50:47,046 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 03:50:47,046 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 03:50:47,046 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 03:50:47,047 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 03:50:47,047 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 03:50:47,047 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 03:50:47,047 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 03:50:47,047 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 03:50:47,047 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 03:50:47,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 03:50:47,048 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 03:50:47,048 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 03:50:47,048 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 03:50:47,048 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 03:50:47,048 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 03:50:47,049 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 03:50:47,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:50:47,049 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 03:50:47,049 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 03:50:47,049 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 03:50:47,049 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 03:50:47,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 03:50:47,050 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 03:50:47,050 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 03:50:47,050 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 03:50:47,050 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0991342cd9e67cbadb964d86a1516812eb3aa45e84d4674c09b8e10a19f475c1 [2021-12-28 03:50:47,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 03:50:47,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 03:50:47,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 03:50:47,400 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 03:50:47,400 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 03:50:47,401 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2021-12-28 03:50:47,449 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b446774ef/391f0d41a6da409da76f59e5b61471ea/FLAG51738847f [2021-12-28 03:50:48,148 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 03:50:48,149 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2021-12-28 03:50:48,195 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b446774ef/391f0d41a6da409da76f59e5b61471ea/FLAG51738847f [2021-12-28 03:50:48,430 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b446774ef/391f0d41a6da409da76f59e5b61471ea [2021-12-28 03:50:48,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 03:50:48,433 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 03:50:48,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 03:50:48,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 03:50:48,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 03:50:48,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:50:48" (1/1) ... [2021-12-28 03:50:48,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41b2633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:48, skipping insertion in model container [2021-12-28 03:50:48,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:50:48" (1/1) ... [2021-12-28 03:50:48,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 03:50:48,559 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 03:50:50,159 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i[339370,339383] [2021-12-28 03:50:50,241 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:50:50,265 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 03:50:50,598 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i[339370,339383] [2021-12-28 03:50:50,606 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:50:50,673 INFO L208 MainTranslator]: Completed translation [2021-12-28 03:50:50,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:50 WrapperNode [2021-12-28 03:50:50,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 03:50:50,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 03:50:50,676 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 03:50:50,676 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 03:50:50,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:50" (1/1) ... [2021-12-28 03:50:50,772 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:50" (1/1) ... [2021-12-28 03:50:50,981 INFO L137 Inliner]: procedures = 326, calls = 4469, calls flagged for inlining = 131, calls inlined = 121, statements flattened = 8803 [2021-12-28 03:50:50,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 03:50:50,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 03:50:50,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 03:50:50,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 03:50:50,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:50" (1/1) ... [2021-12-28 03:50:50,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:50" (1/1) ... [2021-12-28 03:50:51,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:50" (1/1) ... [2021-12-28 03:50:51,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:50" (1/1) ... [2021-12-28 03:50:51,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:50" (1/1) ... [2021-12-28 03:50:51,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:50" (1/1) ... [2021-12-28 03:50:51,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:50" (1/1) ... [2021-12-28 03:50:51,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 03:50:51,318 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 03:50:51,318 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 03:50:51,318 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 03:50:51,319 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:50" (1/1) ... [2021-12-28 03:50:51,323 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:50:51,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:50:51,351 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 03:50:51,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 03:50:51,398 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_ohci [2021-12-28 03:50:51,399 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_ohci [2021-12-28 03:50:51,399 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-28 03:50:51,399 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-28 03:50:51,399 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2021-12-28 03:50:51,399 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2021-12-28 03:50:51,399 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2021-12-28 03:50:51,399 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2021-12-28 03:50:51,400 INFO L130 BoogieDeclarations]: Found specification of procedure start_ed_unlink [2021-12-28 03:50:51,400 INFO L138 BoogieDeclarations]: Found implementation of procedure start_ed_unlink [2021-12-28 03:50:51,400 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_status [2021-12-28 03:50:51,400 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_status [2021-12-28 03:50:51,400 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-12-28 03:50:51,400 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-12-28 03:50:51,400 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_suspend [2021-12-28 03:50:51,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_suspend [2021-12-28 03:50:51,401 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_alloc [2021-12-28 03:50:51,401 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_alloc [2021-12-28 03:50:51,401 INFO L130 BoogieDeclarations]: Found specification of procedure show_list [2021-12-28 03:50:51,401 INFO L138 BoogieDeclarations]: Found implementation of procedure show_list [2021-12-28 03:50:51,401 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_probe [2021-12-28 03:50:51,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_probe [2021-12-28 03:50:51,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 03:50:51,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 03:50:51,402 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-28 03:50:51,402 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-28 03:50:51,402 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpup [2021-12-28 03:50:51,402 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpup [2021-12-28 03:50:51,402 INFO L130 BoogieDeclarations]: Found specification of procedure hcfs2string [2021-12-28 03:50:51,402 INFO L138 BoogieDeclarations]: Found implementation of procedure hcfs2string [2021-12-28 03:50:51,403 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_zfmicro [2021-12-28 03:50:51,403 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_zfmicro [2021-12-28 03:50:51,403 INFO L130 BoogieDeclarations]: Found specification of procedure usb_disabled [2021-12-28 03:50:51,403 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_disabled [2021-12-28 03:50:51,403 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_status_data [2021-12-28 03:50:51,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_status_data [2021-12-28 03:50:51,403 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_reset [2021-12-28 03:50:51,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_reset [2021-12-28 03:50:51,404 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_shutdown [2021-12-28 03:50:51,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_shutdown [2021-12-28 03:50:51,404 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-28 03:50:51,404 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-28 03:50:51,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 03:50:51,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 03:50:51,404 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_intr_mask [2021-12-28 03:50:51,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_intr_mask [2021-12-28 03:50:51,405 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_buffer [2021-12-28 03:50:51,405 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_buffer [2021-12-28 03:50:51,405 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_writel [2021-12-28 03:50:51,405 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_writel [2021-12-28 03:50:51,405 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-28 03:50:51,405 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-28 03:50:51,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-28 03:50:51,406 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-28 03:50:51,406 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hwPSWp [2021-12-28 03:50:51,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hwPSWp [2021-12-28 03:50:51,406 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_resume [2021-12-28 03:50:51,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_resume [2021-12-28 03:50:51,407 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_suspend [2021-12-28 03:50:51,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_suspend [2021-12-28 03:50:51,408 INFO L130 BoogieDeclarations]: Found specification of procedure debug_output [2021-12-28 03:50:51,408 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_output [2021-12-28 03:50:51,409 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-28 03:50:51,409 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-28 03:50:51,409 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 03:50:51,409 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 03:50:51,409 INFO L130 BoogieDeclarations]: Found specification of procedure ed_schedule [2021-12-28 03:50:51,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_schedule [2021-12-28 03:50:51,409 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hcd_init [2021-12-28 03:50:51,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hcd_init [2021-12-28 03:50:51,409 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_roothub [2021-12-28 03:50:51,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_roothub [2021-12-28 03:50:51,410 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2021-12-28 03:50:51,410 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2021-12-28 03:50:51,410 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-28 03:50:51,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-28 03:50:51,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 03:50:51,502 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_stop [2021-12-28 03:50:51,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_stop [2021-12-28 03:50:51,503 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-28 03:50:51,503 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-28 03:50:51,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 03:50:51,503 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2021-12-28 03:50:51,503 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2021-12-28 03:50:51,503 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_remove [2021-12-28 03:50:51,503 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_remove [2021-12-28 03:50:51,503 INFO L130 BoogieDeclarations]: Found specification of procedure check_ed [2021-12-28 03:50:51,504 INFO L138 BoogieDeclarations]: Found implementation of procedure check_ed [2021-12-28 03:50:51,504 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_restart [2021-12-28 03:50:51,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_restart [2021-12-28 03:50:51,504 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_nec [2021-12-28 03:50:51,505 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_nec [2021-12-28 03:50:51,505 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 03:50:51,505 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 03:50:51,505 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2021-12-28 03:50:51,506 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2021-12-28 03:50:51,506 INFO L130 BoogieDeclarations]: Found specification of procedure td_free [2021-12-28 03:50:51,506 INFO L138 BoogieDeclarations]: Found implementation of procedure td_free [2021-12-28 03:50:51,506 INFO L130 BoogieDeclarations]: Found specification of procedure broken_suspend [2021-12-28 03:50:51,506 INFO L138 BoogieDeclarations]: Found implementation of procedure broken_suspend [2021-12-28 03:50:51,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 03:50:51,507 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_resume [2021-12-28 03:50:51,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_resume [2021-12-28 03:50:51,507 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_platform_shutdown [2021-12-28 03:50:51,507 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_platform_shutdown [2021-12-28 03:50:51,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 03:50:51,508 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_portstatus [2021-12-28 03:50:51,508 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_portstatus [2021-12-28 03:50:51,508 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-12-28 03:50:51,508 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-12-28 03:50:51,508 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hc_died [2021-12-28 03:50:51,508 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hc_died [2021-12-28 03:50:51,509 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_remove [2021-12-28 03:50:51,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_remove [2021-12-28 03:50:51,509 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-12-28 03:50:51,509 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-12-28 03:50:51,509 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-28 03:50:51,509 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-28 03:50:51,510 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2021-12-28 03:50:51,510 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2021-12-28 03:50:51,512 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-28 03:50:51,512 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-28 03:50:51,512 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-28 03:50:51,513 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-28 03:50:51,513 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-28 03:50:51,514 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-28 03:50:51,514 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_resume [2021-12-28 03:50:51,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_resume [2021-12-28 03:50:51,514 INFO L130 BoogieDeclarations]: Found specification of procedure ed_free [2021-12-28 03:50:51,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_free [2021-12-28 03:50:51,519 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-28 03:50:51,519 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-28 03:50:51,519 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2021-12-28 03:50:51,519 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2021-12-28 03:50:51,519 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_start [2021-12-28 03:50:51,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_start [2021-12-28 03:50:51,519 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump [2021-12-28 03:50:51,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump [2021-12-28 03:50:51,520 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_frame_no [2021-12-28 03:50:51,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_frame_no [2021-12-28 03:50:51,520 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-28 03:50:51,520 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-28 03:50:51,520 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-28 03:50:51,520 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-28 03:50:51,520 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-28 03:50:51,520 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-28 03:50:51,520 INFO L130 BoogieDeclarations]: Found specification of procedure sb800_prefetch [2021-12-28 03:50:51,521 INFO L138 BoogieDeclarations]: Found implementation of procedure sb800_prefetch [2021-12-28 03:50:51,521 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_control [2021-12-28 03:50:51,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_control [2021-12-28 03:50:51,521 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2021-12-28 03:50:51,521 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2021-12-28 03:50:51,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 03:50:51,535 INFO L130 BoogieDeclarations]: Found specification of procedure finish_urb [2021-12-28 03:50:51,536 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_urb [2021-12-28 03:50:51,536 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_suspend [2021-12-28 03:50:51,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_suspend [2021-12-28 03:50:51,536 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_a [2021-12-28 03:50:51,536 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_a [2021-12-28 03:50:51,536 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_irq [2021-12-28 03:50:51,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_irq [2021-12-28 03:50:51,536 INFO L130 BoogieDeclarations]: Found specification of procedure rh_state_string [2021-12-28 03:50:51,537 INFO L138 BoogieDeclarations]: Found implementation of procedure rh_state_string [2021-12-28 03:50:51,537 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_b [2021-12-28 03:50:51,537 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_b [2021-12-28 03:50:51,537 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_enqueue [2021-12-28 03:50:51,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_enqueue [2021-12-28 03:50:51,537 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_start_port_reset [2021-12-28 03:50:51,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_start_port_reset [2021-12-28 03:50:51,537 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_to_hcd [2021-12-28 03:50:51,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_to_hcd [2021-12-28 03:50:51,537 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_start [2021-12-28 03:50:51,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_start [2021-12-28 03:50:51,538 INFO L130 BoogieDeclarations]: Found specification of procedure td_alloc [2021-12-28 03:50:51,538 INFO L138 BoogieDeclarations]: Found implementation of procedure td_alloc [2021-12-28 03:50:51,538 INFO L130 BoogieDeclarations]: Found specification of procedure find_head [2021-12-28 03:50:51,538 INFO L138 BoogieDeclarations]: Found implementation of procedure find_head [2021-12-28 03:50:51,538 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 03:50:51,538 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 03:50:51,538 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_run [2021-12-28 03:50:51,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_run [2021-12-28 03:50:51,539 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2021-12-28 03:50:51,539 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2021-12-28 03:50:51,539 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_endpoint_disable [2021-12-28 03:50:51,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_endpoint_disable [2021-12-28 03:50:51,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 03:50:51,539 INFO L130 BoogieDeclarations]: Found specification of procedure takeback_td [2021-12-28 03:50:51,539 INFO L138 BoogieDeclarations]: Found implementation of procedure takeback_td [2021-12-28 03:50:51,539 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdprefetch [2021-12-28 03:50:51,539 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdprefetch [2021-12-28 03:50:51,540 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-28 03:50:51,540 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-28 03:50:51,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 03:50:51,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 03:50:51,540 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_readl [2021-12-28 03:50:51,540 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_readl [2021-12-28 03:50:51,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 03:50:51,540 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2021-12-28 03:50:51,540 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2021-12-28 03:50:51,541 INFO L130 BoogieDeclarations]: Found specification of procedure dl_done_list [2021-12-28 03:50:51,541 INFO L138 BoogieDeclarations]: Found implementation of procedure dl_done_list [2021-12-28 03:50:51,541 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_poll_rh_status [2021-12-28 03:50:51,541 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_poll_rh_status [2021-12-28 03:50:51,541 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-28 03:50:51,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-28 03:50:51,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 03:50:51,541 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_reinit [2021-12-28 03:50:51,541 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_reinit [2021-12-28 03:50:51,541 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2021-12-28 03:50:51,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2021-12-28 03:50:51,542 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-28 03:50:51,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-28 03:50:51,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 03:50:51,542 INFO L130 BoogieDeclarations]: Found specification of procedure td_done [2021-12-28 03:50:51,542 INFO L138 BoogieDeclarations]: Found implementation of procedure td_done [2021-12-28 03:50:51,542 INFO L130 BoogieDeclarations]: Found specification of procedure td_fill [2021-12-28 03:50:51,542 INFO L138 BoogieDeclarations]: Found implementation of procedure td_fill [2021-12-28 03:50:51,542 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_dequeue [2021-12-28 03:50:51,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_dequeue [2021-12-28 03:50:51,543 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 03:50:51,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 03:50:51,543 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_init [2021-12-28 03:50:51,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_init [2021-12-28 03:50:51,543 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-28 03:50:51,543 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-28 03:50:51,543 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc16 [2021-12-28 03:50:51,543 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc16 [2021-12-28 03:50:51,544 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-28 03:50:51,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-28 03:50:51,544 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdiso [2021-12-28 03:50:51,544 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdiso [2021-12-28 03:50:51,544 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2021-12-28 03:50:51,544 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2021-12-28 03:50:51,544 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-28 03:50:51,544 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-28 03:50:51,544 INFO L130 BoogieDeclarations]: Found specification of procedure ed_deschedule [2021-12-28 03:50:51,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_deschedule [2021-12-28 03:50:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_resume_root_hub [2021-12-28 03:50:51,545 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_resume_root_hub [2021-12-28 03:50:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure urb_free_priv [2021-12-28 03:50:51,545 INFO L138 BoogieDeclarations]: Found implementation of procedure urb_free_priv [2021-12-28 03:50:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure finish_unlinks [2021-12-28 03:50:51,545 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_unlinks [2021-12-28 03:50:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpu [2021-12-28 03:50:51,545 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpu [2021-12-28 03:50:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2021-12-28 03:50:51,546 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2021-12-28 03:50:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_status [2021-12-28 03:50:51,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_status [2021-12-28 03:50:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_print_eds [2021-12-28 03:50:51,549 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_print_eds [2021-12-28 03:50:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure debug_close [2021-12-28 03:50:51,549 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_close [2021-12-28 03:50:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_get_frame [2021-12-28 03:50:51,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_get_frame [2021-12-28 03:50:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2021-12-28 03:50:51,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2021-12-28 03:50:51,550 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-28 03:50:51,550 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-28 03:50:51,551 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-28 03:50:51,551 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-28 03:50:51,551 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc32 [2021-12-28 03:50:51,551 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc32 [2021-12-28 03:50:51,551 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-28 03:50:51,551 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-28 03:50:51,551 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_usb_reset [2021-12-28 03:50:51,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_usb_reset [2021-12-28 03:50:51,551 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_resume [2021-12-28 03:50:51,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_resume [2021-12-28 03:50:51,552 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-12-28 03:50:51,552 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-12-28 03:50:51,552 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-28 03:50:51,552 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-28 03:50:51,552 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_suspend [2021-12-28 03:50:51,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_suspend [2021-12-28 03:50:51,552 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_reset [2021-12-28 03:50:51,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_reset [2021-12-28 03:50:51,552 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_shutdown [2021-12-28 03:50:51,553 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_shutdown [2021-12-28 03:50:51,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 03:50:51,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 03:50:51,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 03:50:51,553 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2021-12-28 03:50:51,553 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2021-12-28 03:50:52,465 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 03:50:52,468 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 03:50:57,698 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 03:50:57,715 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 03:50:57,715 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-28 03:50:57,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:50:57 BoogieIcfgContainer [2021-12-28 03:50:57,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 03:50:57,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 03:50:57,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 03:50:57,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 03:50:57,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 03:50:48" (1/3) ... [2021-12-28 03:50:57,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc83607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:50:57, skipping insertion in model container [2021-12-28 03:50:57,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:50" (2/3) ... [2021-12-28 03:50:57,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc83607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:50:57, skipping insertion in model container [2021-12-28 03:50:57,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:50:57" (3/3) ... [2021-12-28 03:50:57,724 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2021-12-28 03:50:57,727 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 03:50:57,728 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 03:50:57,763 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 03:50:57,767 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 03:50:57,767 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 03:50:57,810 INFO L276 IsEmpty]: Start isEmpty. Operand has 3313 states, 2331 states have (on average 1.3951093951093951) internal successors, (3252), 2402 states have internal predecessors, (3252), 848 states have call successors, (848), 136 states have call predecessors, (848), 136 states have return successors, (848), 839 states have call predecessors, (848), 848 states have call successors, (848) [2021-12-28 03:50:57,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-28 03:50:57,814 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:50:57,814 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:50:57,815 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:50:57,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:50:57,818 INFO L85 PathProgramCache]: Analyzing trace with hash -825410595, now seen corresponding path program 1 times [2021-12-28 03:50:57,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:50:57,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689070628] [2021-12-28 03:50:57,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:50:57,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:50:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:50:58,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:50:58,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:50:58,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689070628] [2021-12-28 03:50:58,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689070628] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:50:58,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:50:58,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 03:50:58,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679948147] [2021-12-28 03:50:58,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:50:58,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 03:50:58,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:50:58,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 03:50:58,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:50:58,320 INFO L87 Difference]: Start difference. First operand has 3313 states, 2331 states have (on average 1.3951093951093951) internal successors, (3252), 2402 states have internal predecessors, (3252), 848 states have call successors, (848), 136 states have call predecessors, (848), 136 states have return successors, (848), 839 states have call predecessors, (848), 848 states have call successors, (848) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:50:58,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:50:58,672 INFO L93 Difference]: Finished difference Result 9883 states and 15013 transitions. [2021-12-28 03:50:58,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 03:50:58,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-12-28 03:50:58,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:50:58,726 INFO L225 Difference]: With dead ends: 9883 [2021-12-28 03:50:58,726 INFO L226 Difference]: Without dead ends: 6563 [2021-12-28 03:50:58,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:50:58,757 INFO L933 BasicCegarLoop]: 7168 mSDtfsCounter, 4872 mSDsluCounter, 4897 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4872 SdHoareTripleChecker+Valid, 12065 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 03:50:58,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4872 Valid, 12065 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 03:50:58,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6563 states. [2021-12-28 03:50:59,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6563 to 6549. [2021-12-28 03:50:59,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6549 states, 4600 states have (on average 1.393695652173913) internal successors, (6411), 4734 states have internal predecessors, (6411), 1678 states have call successors, (1678), 271 states have call predecessors, (1678), 270 states have return successors, (1672), 1653 states have call predecessors, (1672), 1672 states have call successors, (1672) [2021-12-28 03:50:59,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6549 states to 6549 states and 9761 transitions. [2021-12-28 03:50:59,100 INFO L78 Accepts]: Start accepts. Automaton has 6549 states and 9761 transitions. Word has length 14 [2021-12-28 03:50:59,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:50:59,101 INFO L470 AbstractCegarLoop]: Abstraction has 6549 states and 9761 transitions. [2021-12-28 03:50:59,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:50:59,102 INFO L276 IsEmpty]: Start isEmpty. Operand 6549 states and 9761 transitions. [2021-12-28 03:50:59,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-28 03:50:59,110 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:50:59,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:50:59,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 03:50:59,111 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:50:59,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:50:59,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1327585593, now seen corresponding path program 1 times [2021-12-28 03:50:59,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:50:59,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857400637] [2021-12-28 03:50:59,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:50:59,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:50:59,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:50:59,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:50:59,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:50:59,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857400637] [2021-12-28 03:50:59,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857400637] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:50:59,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:50:59,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 03:50:59,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667735795] [2021-12-28 03:50:59,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:50:59,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 03:50:59,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:50:59,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 03:50:59,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:50:59,305 INFO L87 Difference]: Start difference. First operand 6549 states and 9761 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:50:59,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:50:59,724 INFO L93 Difference]: Finished difference Result 19597 states and 29203 transitions. [2021-12-28 03:50:59,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 03:50:59,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-12-28 03:50:59,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:50:59,809 INFO L225 Difference]: With dead ends: 19597 [2021-12-28 03:50:59,809 INFO L226 Difference]: Without dead ends: 13051 [2021-12-28 03:50:59,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:50:59,850 INFO L933 BasicCegarLoop]: 6326 mSDtfsCounter, 4864 mSDsluCounter, 4891 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4864 SdHoareTripleChecker+Valid, 11217 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 03:50:59,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4864 Valid, 11217 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 03:50:59,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13051 states. [2021-12-28 03:51:00,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13051 to 13037. [2021-12-28 03:51:00,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13037 states, 9154 states have (on average 1.392724492025344) internal successors, (12749), 9418 states have internal predecessors, (12749), 3342 states have call successors, (3342), 541 states have call predecessors, (3342), 540 states have return successors, (3336), 3297 states have call predecessors, (3336), 3336 states have call successors, (3336) [2021-12-28 03:51:00,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13037 states to 13037 states and 19427 transitions. [2021-12-28 03:51:00,319 INFO L78 Accepts]: Start accepts. Automaton has 13037 states and 19427 transitions. Word has length 16 [2021-12-28 03:51:00,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:51:00,320 INFO L470 AbstractCegarLoop]: Abstraction has 13037 states and 19427 transitions. [2021-12-28 03:51:00,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:51:00,321 INFO L276 IsEmpty]: Start isEmpty. Operand 13037 states and 19427 transitions. [2021-12-28 03:51:00,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-28 03:51:00,322 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:51:00,322 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:51:00,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 03:51:00,322 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:51:00,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:51:00,323 INFO L85 PathProgramCache]: Analyzing trace with hash -269818897, now seen corresponding path program 1 times [2021-12-28 03:51:00,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:51:00,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422586326] [2021-12-28 03:51:00,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:51:00,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:51:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:00,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:51:00,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:51:00,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422586326] [2021-12-28 03:51:00,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422586326] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:51:00,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:51:00,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 03:51:00,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712030891] [2021-12-28 03:51:00,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:51:00,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 03:51:00,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:51:00,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 03:51:00,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:51:00,672 INFO L87 Difference]: Start difference. First operand 13037 states and 19427 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:51:01,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:51:01,297 INFO L93 Difference]: Finished difference Result 38959 states and 58058 transitions. [2021-12-28 03:51:01,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 03:51:01,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-12-28 03:51:01,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:51:01,461 INFO L225 Difference]: With dead ends: 38959 [2021-12-28 03:51:01,461 INFO L226 Difference]: Without dead ends: 25925 [2021-12-28 03:51:01,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:51:01,543 INFO L933 BasicCegarLoop]: 6747 mSDtfsCounter, 4862 mSDsluCounter, 4891 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4862 SdHoareTripleChecker+Valid, 11638 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 03:51:01,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4862 Valid, 11638 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 03:51:01,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25925 states. [2021-12-28 03:51:02,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25925 to 25911. [2021-12-28 03:51:02,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25911 states, 18183 states have (on average 1.3920695154814937) internal successors, (25312), 18706 states have internal predecessors, (25312), 6654 states have call successors, (6654), 1074 states have call predecessors, (6654), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2021-12-28 03:51:02,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25911 states to 25911 states and 38614 transitions. [2021-12-28 03:51:02,479 INFO L78 Accepts]: Start accepts. Automaton has 25911 states and 38614 transitions. Word has length 18 [2021-12-28 03:51:02,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:51:02,479 INFO L470 AbstractCegarLoop]: Abstraction has 25911 states and 38614 transitions. [2021-12-28 03:51:02,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:51:02,479 INFO L276 IsEmpty]: Start isEmpty. Operand 25911 states and 38614 transitions. [2021-12-28 03:51:02,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-28 03:51:02,483 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:51:02,483 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:51:02,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 03:51:02,484 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:51:02,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:51:02,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1935095309, now seen corresponding path program 1 times [2021-12-28 03:51:02,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:51:02,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996604623] [2021-12-28 03:51:02,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:51:02,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:51:02,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:02,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 03:51:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:02,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:51:02,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:51:02,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996604623] [2021-12-28 03:51:02,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996604623] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:51:02,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:51:02,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:51:02,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382307308] [2021-12-28 03:51:02,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:51:02,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:51:02,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:51:02,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:51:02,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:51:02,682 INFO L87 Difference]: Start difference. First operand 25911 states and 38614 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 03:51:03,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:51:03,558 INFO L93 Difference]: Finished difference Result 51854 states and 77278 transitions. [2021-12-28 03:51:03,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:51:03,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-12-28 03:51:03,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:51:03,704 INFO L225 Difference]: With dead ends: 51854 [2021-12-28 03:51:03,704 INFO L226 Difference]: Without dead ends: 25946 [2021-12-28 03:51:03,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:51:03,783 INFO L933 BasicCegarLoop]: 4906 mSDtfsCounter, 22 mSDsluCounter, 9807 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 14713 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 03:51:03,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 14713 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 03:51:03,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25946 states. [2021-12-28 03:51:04,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25946 to 25914. [2021-12-28 03:51:04,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25914 states, 18186 states have (on average 1.392004838887056) internal successors, (25315), 18709 states have internal predecessors, (25315), 6654 states have call successors, (6654), 1074 states have call predecessors, (6654), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2021-12-28 03:51:04,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25914 states to 25914 states and 38617 transitions. [2021-12-28 03:51:04,723 INFO L78 Accepts]: Start accepts. Automaton has 25914 states and 38617 transitions. Word has length 29 [2021-12-28 03:51:04,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:51:04,723 INFO L470 AbstractCegarLoop]: Abstraction has 25914 states and 38617 transitions. [2021-12-28 03:51:04,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 03:51:04,724 INFO L276 IsEmpty]: Start isEmpty. Operand 25914 states and 38617 transitions. [2021-12-28 03:51:04,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-28 03:51:04,727 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:51:04,727 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:51:04,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 03:51:04,728 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:51:04,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:51:04,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1992353611, now seen corresponding path program 1 times [2021-12-28 03:51:04,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:51:04,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090019569] [2021-12-28 03:51:04,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:51:04,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:51:04,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:04,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 03:51:04,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:04,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:51:04,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:51:04,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090019569] [2021-12-28 03:51:04,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090019569] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:51:04,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:51:04,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 03:51:04,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352083335] [2021-12-28 03:51:04,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:51:04,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 03:51:04,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:51:04,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 03:51:04,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:51:04,930 INFO L87 Difference]: Start difference. First operand 25914 states and 38617 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 03:51:05,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:51:05,421 INFO L93 Difference]: Finished difference Result 25916 states and 38618 transitions. [2021-12-28 03:51:05,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 03:51:05,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-12-28 03:51:05,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:51:05,561 INFO L225 Difference]: With dead ends: 25916 [2021-12-28 03:51:05,561 INFO L226 Difference]: Without dead ends: 25913 [2021-12-28 03:51:05,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:51:05,583 INFO L933 BasicCegarLoop]: 4906 mSDtfsCounter, 4884 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4884 SdHoareTripleChecker+Valid, 4906 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 03:51:05,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4884 Valid, 4906 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 03:51:05,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25913 states. [2021-12-28 03:51:06,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25913 to 25913. [2021-12-28 03:51:06,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25913 states, 18186 states have (on average 1.391949851534147) internal successors, (25314), 18708 states have internal predecessors, (25314), 6653 states have call successors, (6653), 1074 states have call predecessors, (6653), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2021-12-28 03:51:06,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25913 states to 25913 states and 38615 transitions. [2021-12-28 03:51:06,771 INFO L78 Accepts]: Start accepts. Automaton has 25913 states and 38615 transitions. Word has length 29 [2021-12-28 03:51:06,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:51:06,772 INFO L470 AbstractCegarLoop]: Abstraction has 25913 states and 38615 transitions. [2021-12-28 03:51:06,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 03:51:06,772 INFO L276 IsEmpty]: Start isEmpty. Operand 25913 states and 38615 transitions. [2021-12-28 03:51:06,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-28 03:51:06,775 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:51:06,775 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:51:06,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 03:51:06,775 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:51:06,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:51:06,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1631933668, now seen corresponding path program 1 times [2021-12-28 03:51:06,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:51:06,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015098745] [2021-12-28 03:51:06,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:51:06,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:51:06,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:06,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 03:51:06,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:06,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:51:06,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:51:06,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015098745] [2021-12-28 03:51:06,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015098745] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:51:06,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:51:06,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 03:51:06,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900644161] [2021-12-28 03:51:06,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:51:06,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 03:51:06,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:51:06,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 03:51:06,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:51:06,962 INFO L87 Difference]: Start difference. First operand 25913 states and 38615 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 03:51:07,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:51:07,522 INFO L93 Difference]: Finished difference Result 25915 states and 38616 transitions. [2021-12-28 03:51:07,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 03:51:07,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-12-28 03:51:07,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:51:07,624 INFO L225 Difference]: With dead ends: 25915 [2021-12-28 03:51:07,625 INFO L226 Difference]: Without dead ends: 25912 [2021-12-28 03:51:07,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:51:07,641 INFO L933 BasicCegarLoop]: 4904 mSDtfsCounter, 4881 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4881 SdHoareTripleChecker+Valid, 4904 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 03:51:07,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4881 Valid, 4904 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 03:51:07,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25912 states. [2021-12-28 03:51:08,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25912 to 25912. [2021-12-28 03:51:08,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25912 states, 18186 states have (on average 1.3918948641812383) internal successors, (25313), 18707 states have internal predecessors, (25313), 6652 states have call successors, (6652), 1074 states have call predecessors, (6652), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2021-12-28 03:51:08,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25912 states to 25912 states and 38613 transitions. [2021-12-28 03:51:08,595 INFO L78 Accepts]: Start accepts. Automaton has 25912 states and 38613 transitions. Word has length 30 [2021-12-28 03:51:08,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:51:08,595 INFO L470 AbstractCegarLoop]: Abstraction has 25912 states and 38613 transitions. [2021-12-28 03:51:08,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 03:51:08,596 INFO L276 IsEmpty]: Start isEmpty. Operand 25912 states and 38613 transitions. [2021-12-28 03:51:08,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-28 03:51:08,598 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:51:08,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:51:08,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 03:51:08,599 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:51:08,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:51:08,599 INFO L85 PathProgramCache]: Analyzing trace with hash -951145106, now seen corresponding path program 1 times [2021-12-28 03:51:08,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:51:08,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345475100] [2021-12-28 03:51:08,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:51:08,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:51:08,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:08,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 03:51:08,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:08,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:51:08,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:51:08,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345475100] [2021-12-28 03:51:08,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345475100] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:51:08,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:51:08,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 03:51:08,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870387970] [2021-12-28 03:51:08,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:51:08,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 03:51:08,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:51:08,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 03:51:08,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:51:08,783 INFO L87 Difference]: Start difference. First operand 25912 states and 38613 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 03:51:09,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:51:09,502 INFO L93 Difference]: Finished difference Result 40287 states and 59265 transitions. [2021-12-28 03:51:09,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 03:51:09,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-12-28 03:51:09,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:51:09,704 INFO L225 Difference]: With dead ends: 40287 [2021-12-28 03:51:09,705 INFO L226 Difference]: Without dead ends: 40283 [2021-12-28 03:51:09,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:51:09,737 INFO L933 BasicCegarLoop]: 5455 mSDtfsCounter, 4844 mSDsluCounter, 2979 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4844 SdHoareTripleChecker+Valid, 8434 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 03:51:09,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4844 Valid, 8434 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 03:51:09,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40283 states. [2021-12-28 03:51:10,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40283 to 40281. [2021-12-28 03:51:10,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40281 states, 28147 states have (on average 1.3720467545386719) internal successors, (38619), 28925 states have internal predecessors, (38619), 10318 states have call successors, (10318), 1816 states have call predecessors, (10318), 1815 states have return successors, (10316), 10202 states have call predecessors, (10316), 10316 states have call successors, (10316) [2021-12-28 03:51:11,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40281 states to 40281 states and 59253 transitions. [2021-12-28 03:51:11,121 INFO L78 Accepts]: Start accepts. Automaton has 40281 states and 59253 transitions. Word has length 31 [2021-12-28 03:51:11,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:51:11,121 INFO L470 AbstractCegarLoop]: Abstraction has 40281 states and 59253 transitions. [2021-12-28 03:51:11,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 03:51:11,122 INFO L276 IsEmpty]: Start isEmpty. Operand 40281 states and 59253 transitions. [2021-12-28 03:51:11,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-28 03:51:11,126 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:51:11,126 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:51:11,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 03:51:11,127 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:51:11,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:51:11,128 INFO L85 PathProgramCache]: Analyzing trace with hash 577796391, now seen corresponding path program 1 times [2021-12-28 03:51:11,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:51:11,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960429216] [2021-12-28 03:51:11,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:51:11,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:51:11,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:11,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 03:51:11,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:11,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:51:11,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:51:11,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960429216] [2021-12-28 03:51:11,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960429216] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:51:11,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:51:11,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 03:51:11,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782887195] [2021-12-28 03:51:11,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:51:11,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 03:51:11,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:51:11,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 03:51:11,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:51:11,314 INFO L87 Difference]: Start difference. First operand 40281 states and 59253 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 03:51:12,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:51:12,057 INFO L93 Difference]: Finished difference Result 40283 states and 59254 transitions. [2021-12-28 03:51:12,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 03:51:12,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-12-28 03:51:12,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:51:12,254 INFO L225 Difference]: With dead ends: 40283 [2021-12-28 03:51:12,254 INFO L226 Difference]: Without dead ends: 40191 [2021-12-28 03:51:12,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:51:12,292 INFO L933 BasicCegarLoop]: 4899 mSDtfsCounter, 4873 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4873 SdHoareTripleChecker+Valid, 4899 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 03:51:12,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4873 Valid, 4899 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 03:51:12,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40191 states. [2021-12-28 03:51:13,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40191 to 40191. [2021-12-28 03:51:13,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40191 states, 28098 states have (on average 1.3718414122001565) internal successors, (38546), 28868 states have internal predecessors, (38546), 10285 states have call successors, (10285), 1808 states have call predecessors, (10285), 1807 states have return successors, (10284), 10177 states have call predecessors, (10284), 10284 states have call successors, (10284) [2021-12-28 03:51:13,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40191 states to 40191 states and 59115 transitions. [2021-12-28 03:51:13,616 INFO L78 Accepts]: Start accepts. Automaton has 40191 states and 59115 transitions. Word has length 32 [2021-12-28 03:51:13,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:51:13,616 INFO L470 AbstractCegarLoop]: Abstraction has 40191 states and 59115 transitions. [2021-12-28 03:51:13,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 03:51:13,617 INFO L276 IsEmpty]: Start isEmpty. Operand 40191 states and 59115 transitions. [2021-12-28 03:51:13,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-28 03:51:13,631 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:51:13,631 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:51:13,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 03:51:13,632 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:51:13,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:51:13,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1062285101, now seen corresponding path program 1 times [2021-12-28 03:51:13,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:51:13,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152643352] [2021-12-28 03:51:13,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:51:13,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:51:13,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:13,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 03:51:13,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:13,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-28 03:51:13,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:13,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-28 03:51:13,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:13,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 03:51:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:13,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:51:13,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:13,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 03:51:13,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:13,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-28 03:51:13,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:13,870 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:51:13,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:51:13,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152643352] [2021-12-28 03:51:13,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152643352] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:51:13,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:51:13,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:51:13,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434434274] [2021-12-28 03:51:13,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:51:13,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:51:13,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:51:13,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:51:13,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:51:13,873 INFO L87 Difference]: Start difference. First operand 40191 states and 59115 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-28 03:51:20,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:51:20,619 INFO L93 Difference]: Finished difference Result 108621 states and 161333 transitions. [2021-12-28 03:51:20,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:51:20,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 75 [2021-12-28 03:51:20,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:51:20,995 INFO L225 Difference]: With dead ends: 108621 [2021-12-28 03:51:20,995 INFO L226 Difference]: Without dead ends: 68433 [2021-12-28 03:51:21,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:51:21,296 INFO L933 BasicCegarLoop]: 9367 mSDtfsCounter, 5730 mSDsluCounter, 8665 mSDsCounter, 0 mSdLazyCounter, 3449 mSolverCounterSat, 1850 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6553 SdHoareTripleChecker+Valid, 18032 SdHoareTripleChecker+Invalid, 5299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1850 IncrementalHoareTripleChecker+Valid, 3449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-12-28 03:51:21,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6553 Valid, 18032 Invalid, 5299 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1850 Valid, 3449 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2021-12-28 03:51:21,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68433 states. [2021-12-28 03:51:23,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68433 to 59224. [2021-12-28 03:51:23,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59224 states, 41416 states have (on average 1.372416457407765) internal successors, (56840), 42552 states have internal predecessors, (56840), 15153 states have call successors, (15153), 2655 states have call predecessors, (15153), 2654 states have return successors, (15152), 14994 states have call predecessors, (15152), 15152 states have call successors, (15152) [2021-12-28 03:51:23,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59224 states to 59224 states and 87145 transitions. [2021-12-28 03:51:23,668 INFO L78 Accepts]: Start accepts. Automaton has 59224 states and 87145 transitions. Word has length 75 [2021-12-28 03:51:23,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:51:23,668 INFO L470 AbstractCegarLoop]: Abstraction has 59224 states and 87145 transitions. [2021-12-28 03:51:23,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-28 03:51:23,669 INFO L276 IsEmpty]: Start isEmpty. Operand 59224 states and 87145 transitions. [2021-12-28 03:51:23,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-28 03:51:23,707 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:51:23,708 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:51:23,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-28 03:51:23,708 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:51:23,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:51:23,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1311107985, now seen corresponding path program 1 times [2021-12-28 03:51:23,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:51:23,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525967308] [2021-12-28 03:51:23,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:51:23,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:51:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:23,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 03:51:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:23,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-28 03:51:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:23,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-28 03:51:23,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:23,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 03:51:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:23,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:51:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:23,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 03:51:23,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:23,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-28 03:51:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:23,915 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:51:23,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:51:23,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525967308] [2021-12-28 03:51:23,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525967308] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:51:23,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:51:23,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:51:23,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326610467] [2021-12-28 03:51:23,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:51:23,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:51:23,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:51:23,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:51:23,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:51:23,917 INFO L87 Difference]: Start difference. First operand 59224 states and 87145 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-28 03:51:31,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:51:31,720 INFO L93 Difference]: Finished difference Result 159432 states and 236929 transitions. [2021-12-28 03:51:31,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:51:31,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 77 [2021-12-28 03:51:31,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:51:32,513 INFO L225 Difference]: With dead ends: 159432 [2021-12-28 03:51:32,514 INFO L226 Difference]: Without dead ends: 100211 [2021-12-28 03:51:32,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:51:32,709 INFO L933 BasicCegarLoop]: 9342 mSDtfsCounter, 5691 mSDsluCounter, 8598 mSDsCounter, 0 mSdLazyCounter, 3451 mSolverCounterSat, 1853 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6511 SdHoareTripleChecker+Valid, 17940 SdHoareTripleChecker+Invalid, 5304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1853 IncrementalHoareTripleChecker+Valid, 3451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-12-28 03:51:32,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6511 Valid, 17940 Invalid, 5304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1853 Valid, 3451 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2021-12-28 03:51:32,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100211 states. [2021-12-28 03:51:35,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100211 to 86716. [2021-12-28 03:51:35,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86716 states, 60662 states have (on average 1.3732484916422143) internal successors, (83304), 62328 states have internal predecessors, (83304), 22185 states have call successors, (22185), 3869 states have call predecessors, (22185), 3868 states have return successors, (22184), 21952 states have call predecessors, (22184), 22184 states have call successors, (22184) [2021-12-28 03:51:36,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86716 states to 86716 states and 127673 transitions. [2021-12-28 03:51:36,191 INFO L78 Accepts]: Start accepts. Automaton has 86716 states and 127673 transitions. Word has length 77 [2021-12-28 03:51:36,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:51:36,191 INFO L470 AbstractCegarLoop]: Abstraction has 86716 states and 127673 transitions. [2021-12-28 03:51:36,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-28 03:51:36,192 INFO L276 IsEmpty]: Start isEmpty. Operand 86716 states and 127673 transitions. [2021-12-28 03:51:36,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-28 03:51:36,203 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:51:36,204 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:51:36,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-28 03:51:36,204 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:51:36,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:51:36,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1878818405, now seen corresponding path program 1 times [2021-12-28 03:51:36,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:51:36,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977989432] [2021-12-28 03:51:36,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:51:36,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:51:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:36,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 03:51:36,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:36,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-28 03:51:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:36,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-28 03:51:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:36,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 03:51:36,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:36,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:51:36,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:36,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 03:51:36,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:36,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 03:51:36,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:36,550 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:51:36,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:51:36,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977989432] [2021-12-28 03:51:36,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977989432] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:51:36,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:51:36,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:51:36,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120824441] [2021-12-28 03:51:36,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:51:36,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:51:36,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:51:36,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:51:36,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:51:36,552 INFO L87 Difference]: Start difference. First operand 86716 states and 127673 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)