./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.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 2753d752216607180728226381b5a5c2bb1273cd3c02dbf53b55cd0db95c4306 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 15:07:11,622 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 15:07:11,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 15:07:11,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 15:07:11,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 15:07:11,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 15:07:11,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 15:07:11,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 15:07:11,650 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 15:07:11,651 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 15:07:11,652 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 15:07:11,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 15:07:11,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 15:07:11,654 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 15:07:11,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 15:07:11,655 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 15:07:11,656 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 15:07:11,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 15:07:11,658 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 15:07:11,659 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 15:07:11,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 15:07:11,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 15:07:11,662 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 15:07:11,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 15:07:11,664 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 15:07:11,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 15:07:11,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 15:07:11,665 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 15:07:11,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 15:07:11,666 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 15:07:11,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 15:07:11,667 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 15:07:11,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 15:07:11,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 15:07:11,669 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 15:07:11,669 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 15:07:11,670 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 15:07:11,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 15:07:11,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 15:07:11,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 15:07:11,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 15:07:11,677 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 15:07:11,699 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 15:07:11,700 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 15:07:11,700 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 15:07:11,700 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 15:07:11,701 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 15:07:11,701 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 15:07:11,701 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 15:07:11,702 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 15:07:11,702 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 15:07:11,702 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 15:07:11,702 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 15:07:11,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 15:07:11,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 15:07:11,703 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 15:07:11,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 15:07:11,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 15:07:11,703 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 15:07:11,703 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 15:07:11,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 15:07:11,704 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 15:07:11,704 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 15:07:11,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:07:11,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 15:07:11,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 15:07:11,704 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 15:07:11,704 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 15:07:11,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 15:07:11,705 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 15:07:11,705 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 15:07:11,705 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 15:07:11,705 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 15:07:11,705 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2753d752216607180728226381b5a5c2bb1273cd3c02dbf53b55cd0db95c4306 [2021-12-22 15:07:11,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 15:07:11,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 15:07:11,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 15:07:11,909 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 15:07:11,911 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 15:07:11,913 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2021-12-22 15:07:11,977 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53f3e84ff/db87bb3cae5d4a319e446ed86338b692/FLAG2478c4b94 [2021-12-22 15:07:12,653 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 15:07:12,654 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2021-12-22 15:07:12,697 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53f3e84ff/db87bb3cae5d4a319e446ed86338b692/FLAG2478c4b94 [2021-12-22 15:07:12,716 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53f3e84ff/db87bb3cae5d4a319e446ed86338b692 [2021-12-22 15:07:12,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 15:07:12,720 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 15:07:12,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 15:07:12,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 15:07:12,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 15:07:12,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:07:12" (1/1) ... [2021-12-22 15:07:12,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@432371cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:12, skipping insertion in model container [2021-12-22 15:07:12,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:07:12" (1/1) ... [2021-12-22 15:07:12,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 15:07:12,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 15:07:14,696 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i[277173,277186] [2021-12-22 15:07:14,877 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:07:14,920 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 15:07:15,192 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i[277173,277186] [2021-12-22 15:07:15,200 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:07:15,276 INFO L208 MainTranslator]: Completed translation [2021-12-22 15:07:15,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:15 WrapperNode [2021-12-22 15:07:15,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 15:07:15,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 15:07:15,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 15:07:15,322 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 15:07:15,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:15" (1/1) ... [2021-12-22 15:07:15,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:15" (1/1) ... [2021-12-22 15:07:15,586 INFO L137 Inliner]: procedures = 384, calls = 3030, calls flagged for inlining = 180, calls inlined = 148, statements flattened = 6709 [2021-12-22 15:07:15,587 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 15:07:15,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 15:07:15,588 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 15:07:15,588 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 15:07:15,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:15" (1/1) ... [2021-12-22 15:07:15,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:15" (1/1) ... [2021-12-22 15:07:15,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:15" (1/1) ... [2021-12-22 15:07:15,619 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:15" (1/1) ... [2021-12-22 15:07:15,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:15" (1/1) ... [2021-12-22 15:07:15,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:15" (1/1) ... [2021-12-22 15:07:15,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:15" (1/1) ... [2021-12-22 15:07:15,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 15:07:15,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 15:07:15,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 15:07:15,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 15:07:15,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:15" (1/1) ... [2021-12-22 15:07:15,899 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:07:15,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:07:15,937 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) [2021-12-22 15:07:15,972 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 [2021-12-22 15:07:15,986 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-22 15:07:15,986 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-22 15:07:15,986 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-22 15:07:15,986 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-22 15:07:15,987 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-22 15:07:15,987 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-22 15:07:15,987 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-22 15:07:15,987 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-22 15:07:15,987 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_kick_command_queue [2021-12-22 15:07:15,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_kick_command_queue [2021-12-22 15:07:15,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 15:07:15,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 15:07:15,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 15:07:15,988 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 15:07:15,988 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_flush_input_fifo [2021-12-22 15:07:15,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_flush_input_fifo [2021-12-22 15:07:15,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 15:07:15,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 15:07:15,988 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-22 15:07:15,989 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-22 15:07:15,989 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_config [2021-12-22 15:07:15,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_config [2021-12-22 15:07:15,989 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-12-22 15:07:15,989 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-12-22 15:07:15,989 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-12-22 15:07:15,989 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-12-22 15:07:15,989 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2021-12-22 15:07:15,990 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2021-12-22 15:07:15,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_u132_lock_of_usb_ftdi [2021-12-22 15:07:15,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_u132_lock_of_usb_ftdi [2021-12-22 15:07:15,990 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 15:07:15,990 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 15:07:15,990 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-12-22 15:07:15,990 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-12-22 15:07:15,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 15:07:15,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 15:07:15,991 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-12-22 15:07:15,991 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-12-22 15:07:15,991 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 15:07:15,991 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 15:07:15,991 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-22 15:07:15,991 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-22 15:07:15,991 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_status_work [2021-12-22 15:07:15,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_status_work [2021-12-22 15:07:15,992 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_response_cancel_work [2021-12-22 15:07:15,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_response_cancel_work [2021-12-22 15:07:15,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 15:07:15,992 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-22 15:07:15,992 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-22 15:07:15,992 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2021-12-22 15:07:15,992 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2021-12-22 15:07:15,993 INFO L130 BoogieDeclarations]: Found specification of procedure up [2021-12-22 15:07:15,993 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2021-12-22 15:07:15,993 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_get_kref [2021-12-22 15:07:15,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_get_kref [2021-12-22 15:07:15,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 15:07:15,994 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-22 15:07:15,994 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-12-22 15:07:15,995 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-12-22 15:07:15,995 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2021-12-22 15:07:15,995 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2021-12-22 15:07:15,996 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_status_cancel_work [2021-12-22 15:07:15,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_status_cancel_work [2021-12-22 15:07:15,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ftdi_module_lock [2021-12-22 15:07:15,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ftdi_module_lock [2021-12-22 15:07:15,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 15:07:15,996 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2021-12-22 15:07:15,996 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2021-12-22 15:07:15,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 15:07:15,997 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_cancel_work [2021-12-22 15:07:15,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_cancel_work [2021-12-22 15:07:15,997 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-12-22 15:07:15,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-12-22 15:07:15,998 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-22 15:07:15,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-22 15:07:15,998 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-22 15:07:15,998 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-22 15:07:15,998 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_do_callback [2021-12-22 15:07:15,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_do_callback [2021-12-22 15:07:15,998 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_requeue_work [2021-12-22 15:07:15,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_requeue_work [2021-12-22 15:07:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-22 15:07:15,999 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-22 15:07:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-22 15:07:15,999 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-22 15:07:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-12-22 15:07:15,999 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-12-22 15:07:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-22 15:07:15,999 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-22 15:07:16,000 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_found_controller [2021-12-22 15:07:16,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_found_controller [2021-12-22 15:07:16,000 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_setup_controller [2021-12-22 15:07:16,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_setup_controller [2021-12-22 15:07:16,001 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_gone_away [2021-12-22 15:07:16,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_gone_away [2021-12-22 15:07:16,001 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_config [2021-12-22 15:07:16,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_config [2021-12-22 15:07:16,002 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_respond_work [2021-12-22 15:07:16,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_respond_work [2021-12-22 15:07:16,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 15:07:16,003 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_status_requeue_work [2021-12-22 15:07:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_status_requeue_work [2021-12-22 15:07:16,004 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2021-12-22 15:07:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2021-12-22 15:07:16,004 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-12-22 15:07:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-12-22 15:07:16,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 15:07:16,004 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-22 15:07:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-22 15:07:16,005 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_reg [2021-12-22 15:07:16,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_reg [2021-12-22 15:07:16,005 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_disconnect [2021-12-22 15:07:16,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_disconnect [2021-12-22 15:07:16,005 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_respond_queue_work [2021-12-22 15:07:16,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_respond_queue_work [2021-12-22 15:07:16,005 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write [2021-12-22 15:07:16,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write [2021-12-22 15:07:16,006 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-22 15:07:16,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-22 15:07:16,008 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_abandon_completions [2021-12-22 15:07:16,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_abandon_completions [2021-12-22 15:07:16,009 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2021-12-22 15:07:16,009 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2021-12-22 15:07:16,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 15:07:16,010 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-22 15:07:16,010 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-22 15:07:16,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 15:07:16,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 15:07:16,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_89 [2021-12-22 15:07:16,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_89 [2021-12-22 15:07:16,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_88 [2021-12-22 15:07:16,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_88 [2021-12-22 15:07:16,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_87 [2021-12-22 15:07:16,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_87 [2021-12-22 15:07:16,016 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_command_work [2021-12-22 15:07:16,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_command_work [2021-12-22 15:07:16,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-22 15:07:16,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-22 15:07:16,017 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_put_kref [2021-12-22 15:07:16,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_put_kref [2021-12-22 15:07:16,017 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_abandon_targets [2021-12-22 15:07:16,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_abandon_targets [2021-12-22 15:07:16,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 15:07:16,017 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_pcimem [2021-12-22 15:07:16,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_pcimem [2021-12-22 15:07:16,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-22 15:07:16,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-22 15:07:16,018 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-12-22 15:07:16,018 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-12-22 15:07:16,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_u132_lock_of_usb_ftdi [2021-12-22 15:07:16,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_u132_lock_of_usb_ftdi [2021-12-22 15:07:16,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 15:07:16,018 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2021-12-22 15:07:16,018 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2021-12-22 15:07:16,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 15:07:16,018 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_response_requeue_work [2021-12-22 15:07:16,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_response_requeue_work [2021-12-22 15:07:16,019 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:07:16,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:07:16,019 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2021-12-22 15:07:16,019 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2021-12-22 15:07:16,019 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_queue_work [2021-12-22 15:07:16,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_queue_work [2021-12-22 15:07:16,019 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-22 15:07:16,019 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-22 15:07:16,020 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_pcimem [2021-12-22 15:07:16,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_pcimem [2021-12-22 15:07:16,020 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-12-22 15:07:16,020 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-12-22 15:07:16,020 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-12-22 15:07:16,020 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-12-22 15:07:16,020 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-22 15:07:16,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-22 15:07:16,020 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-22 15:07:16,021 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-22 15:07:16,021 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-22 15:07:16,021 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-22 15:07:16,021 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_reg [2021-12-22 15:07:16,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_reg [2021-12-22 15:07:16,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ftdi_module_lock [2021-12-22 15:07:16,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ftdi_module_lock [2021-12-22 15:07:16,021 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-12-22 15:07:16,021 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-12-22 15:07:16,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 15:07:16,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 15:07:16,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 15:07:16,646 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 15:07:16,648 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 15:07:17,287 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 15:07:28,498 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 15:07:28,514 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 15:07:28,514 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 15:07:28,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:07:28 BoogieIcfgContainer [2021-12-22 15:07:28,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 15:07:28,519 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 15:07:28,519 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 15:07:28,521 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 15:07:28,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:07:12" (1/3) ... [2021-12-22 15:07:28,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc3c254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:07:28, skipping insertion in model container [2021-12-22 15:07:28,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:15" (2/3) ... [2021-12-22 15:07:28,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc3c254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:07:28, skipping insertion in model container [2021-12-22 15:07:28,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:07:28" (3/3) ... [2021-12-22 15:07:28,523 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2021-12-22 15:07:28,528 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 15:07:28,528 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 15:07:28,571 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 15:07:28,579 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 [2021-12-22 15:07:28,580 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 15:07:28,623 INFO L276 IsEmpty]: Start isEmpty. Operand has 1674 states, 1126 states have (on average 1.3996447602131439) internal successors, (1576), 1179 states have internal predecessors, (1576), 461 states have call successors, (461), 86 states have call predecessors, (461), 85 states have return successors, (454), 445 states have call predecessors, (454), 454 states have call successors, (454) [2021-12-22 15:07:28,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-22 15:07:28,638 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:07:28,638 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:07:28,639 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:07:28,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:07:28,642 INFO L85 PathProgramCache]: Analyzing trace with hash 841016865, now seen corresponding path program 1 times [2021-12-22 15:07:28,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:07:28,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493124524] [2021-12-22 15:07:28,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:07:28,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:07:28,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:07:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:29,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:07:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:29,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:29,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:07:29,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:29,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:07:29,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:29,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:07:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:29,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-22 15:07:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-22 15:07:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-22 15:07:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-22 15:07:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,312 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2021-12-22 15:07:29,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:07:29,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493124524] [2021-12-22 15:07:29,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493124524] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:07:29,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:07:29,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:07:29,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914458100] [2021-12-22 15:07:29,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:07:29,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:07:29,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:07:29,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:07:29,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:07:29,346 INFO L87 Difference]: Start difference. First operand has 1674 states, 1126 states have (on average 1.3996447602131439) internal successors, (1576), 1179 states have internal predecessors, (1576), 461 states have call successors, (461), 86 states have call predecessors, (461), 85 states have return successors, (454), 445 states have call predecessors, (454), 454 states have call successors, (454) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 15:07:34,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:07:38,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:07:40,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:07:42,356 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:07:43,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:07:50,818 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:07:53,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:07:53,468 INFO L93 Difference]: Finished difference Result 3652 states and 5878 transitions. [2021-12-22 15:07:53,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 15:07:53,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 135 [2021-12-22 15:07:53,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:07:53,491 INFO L225 Difference]: With dead ends: 3652 [2021-12-22 15:07:53,491 INFO L226 Difference]: Without dead ends: 1969 [2021-12-22 15:07:53,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:07:53,521 INFO L933 BasicCegarLoop]: 2347 mSDtfsCounter, 915 mSDsluCounter, 2992 mSDsCounter, 0 mSdLazyCounter, 2351 mSolverCounterSat, 1243 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 5339 SdHoareTripleChecker+Invalid, 3597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1243 IncrementalHoareTripleChecker+Valid, 2351 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.7s IncrementalHoareTripleChecker+Time [2021-12-22 15:07:53,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [953 Valid, 5339 Invalid, 3597 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1243 Valid, 2351 Invalid, 3 Unknown, 0 Unchecked, 23.7s Time] [2021-12-22 15:07:53,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2021-12-22 15:07:53,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1660. [2021-12-22 15:07:53,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1660 states, 1121 states have (on average 1.392506690454951) internal successors, (1561), 1165 states have internal predecessors, (1561), 454 states have call successors, (454), 85 states have call predecessors, (454), 84 states have return successors, (445), 436 states have call predecessors, (445), 445 states have call successors, (445) [2021-12-22 15:07:53,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1660 states to 1660 states and 2460 transitions. [2021-12-22 15:07:53,682 INFO L78 Accepts]: Start accepts. Automaton has 1660 states and 2460 transitions. Word has length 135 [2021-12-22 15:07:53,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:07:53,682 INFO L470 AbstractCegarLoop]: Abstraction has 1660 states and 2460 transitions. [2021-12-22 15:07:53,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 15:07:53,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1660 states and 2460 transitions. [2021-12-22 15:07:53,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-22 15:07:53,690 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:07:53,691 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:07:53,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 15:07:53,691 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:07:53,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:07:53,692 INFO L85 PathProgramCache]: Analyzing trace with hash -2089123881, now seen corresponding path program 1 times [2021-12-22 15:07:53,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:07:53,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954918830] [2021-12-22 15:07:53,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:07:53,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:07:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:53,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:07:53,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:53,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:53,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:53,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:53,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:07:53,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:53,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:53,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:53,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:53,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:07:53,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:53,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:53,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:53,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:53,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:07:53,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:54,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:54,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:54,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:54,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:54,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:07:54,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:54,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:54,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:54,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:54,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-22 15:07:54,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:54,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-22 15:07:54,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:54,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-22 15:07:54,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:54,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-22 15:07:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:54,161 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2021-12-22 15:07:54,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:07:54,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954918830] [2021-12-22 15:07:54,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954918830] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:07:54,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:07:54,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:07:54,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903086278] [2021-12-22 15:07:54,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:07:54,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:07:54,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:07:54,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:07:54,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:07:54,164 INFO L87 Difference]: Start difference. First operand 1660 states and 2460 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 15:07:57,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:07:58,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:08:01,998 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:08:04,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:08:08,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:08:09,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []