./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 ff03de63 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-ff03de6 [2021-12-21 16:40:24,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 16:40:24,612 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 16:40:24,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 16:40:24,680 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 16:40:24,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 16:40:24,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 16:40:24,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 16:40:24,688 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 16:40:24,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 16:40:24,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 16:40:24,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 16:40:24,693 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 16:40:24,695 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 16:40:24,696 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 16:40:24,698 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 16:40:24,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 16:40:24,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 16:40:24,701 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 16:40:24,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 16:40:24,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 16:40:24,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 16:40:24,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 16:40:24,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 16:40:24,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 16:40:24,714 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 16:40:24,714 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 16:40:24,715 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 16:40:24,716 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 16:40:24,716 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 16:40:24,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 16:40:24,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 16:40:24,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 16:40:24,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 16:40:24,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 16:40:24,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 16:40:24,721 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 16:40:24,721 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 16:40:24,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 16:40:24,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 16:40:24,722 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 16:40:24,723 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 16:40:24,747 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 16:40:24,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 16:40:24,747 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 16:40:24,748 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 16:40:24,748 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 16:40:24,748 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 16:40:24,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 16:40:24,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 16:40:24,749 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 16:40:24,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 16:40:24,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 16:40:24,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 16:40:24,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 16:40:24,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 16:40:24,750 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 16:40:24,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 16:40:24,751 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 16:40:24,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 16:40:24,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 16:40:24,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 16:40:24,751 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 16:40:24,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:40:24,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 16:40:24,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 16:40:24,752 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 16:40:24,752 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 16:40:24,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 16:40:24,752 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 16:40:24,752 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 16:40:24,753 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 16:40:24,753 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 16:40:24,753 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2753d752216607180728226381b5a5c2bb1273cd3c02dbf53b55cd0db95c4306 [2021-12-21 16:40:24,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 16:40:24,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 16:40:24,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 16:40:24,982 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 16:40:24,983 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 16:40:24,983 INFO L432 ainManager$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 [2021-12-21 16:40:25,039 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/599c9cd59/ce6dedd93c05408b860869b94b951c67/FLAG02efbef37 [2021-12-21 16:40:25,672 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 16:40:25,672 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 [2021-12-21 16:40:25,714 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/599c9cd59/ce6dedd93c05408b860869b94b951c67/FLAG02efbef37 [2021-12-21 16:40:25,803 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/599c9cd59/ce6dedd93c05408b860869b94b951c67 [2021-12-21 16:40:25,806 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 16:40:25,807 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 16:40:25,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 16:40:25,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 16:40:25,811 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 16:40:25,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:40:25" (1/1) ... [2021-12-21 16:40:25,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2459c05f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:25, skipping insertion in model container [2021-12-21 16:40:25,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:40:25" (1/1) ... [2021-12-21 16:40:25,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 16:40:25,929 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 16:40:27,383 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] [2021-12-21 16:40:27,463 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:40:27,499 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 16:40:27,779 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] [2021-12-21 16:40:27,789 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:40:27,856 INFO L208 MainTranslator]: Completed translation [2021-12-21 16:40:27,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:27 WrapperNode [2021-12-21 16:40:27,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 16:40:27,858 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 16:40:27,859 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 16:40:27,859 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 16:40:27,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:27" (1/1) ... [2021-12-21 16:40:27,929 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:27" (1/1) ... [2021-12-21 16:40:28,045 INFO L137 Inliner]: procedures = 384, calls = 3030, calls flagged for inlining = 180, calls inlined = 148, statements flattened = 6709 [2021-12-21 16:40:28,046 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 16:40:28,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 16:40:28,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 16:40:28,047 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 16:40:28,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:27" (1/1) ... [2021-12-21 16:40:28,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:27" (1/1) ... [2021-12-21 16:40:28,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:27" (1/1) ... [2021-12-21 16:40:28,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:27" (1/1) ... [2021-12-21 16:40:28,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:27" (1/1) ... [2021-12-21 16:40:28,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:27" (1/1) ... [2021-12-21 16:40:28,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:27" (1/1) ... [2021-12-21 16:40:28,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 16:40:28,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 16:40:28,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 16:40:28,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 16:40:28,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:27" (1/1) ... [2021-12-21 16:40:28,321 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:40:28,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:40:28,365 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) [2021-12-21 16:40:28,392 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 [2021-12-21 16:40:28,407 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-21 16:40:28,407 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-21 16:40:28,407 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-21 16:40:28,408 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-21 16:40:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-21 16:40:28,408 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-21 16:40:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-21 16:40:28,408 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-21 16:40:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_kick_command_queue [2021-12-21 16:40:28,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_kick_command_queue [2021-12-21 16:40:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 16:40:28,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 16:40:28,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-21 16:40:28,409 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-21 16:40:28,409 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_flush_input_fifo [2021-12-21 16:40:28,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_flush_input_fifo [2021-12-21 16:40:28,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 16:40:28,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 16:40:28,409 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-21 16:40:28,409 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-21 16:40:28,409 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_config [2021-12-21 16:40:28,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_config [2021-12-21 16:40:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-12-21 16:40:28,410 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-12-21 16:40:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-12-21 16:40:28,410 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-12-21 16:40:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2021-12-21 16:40:28,410 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2021-12-21 16:40:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_u132_lock_of_usb_ftdi [2021-12-21 16:40:28,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_u132_lock_of_usb_ftdi [2021-12-21 16:40:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-21 16:40:28,411 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-21 16:40:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-12-21 16:40:28,411 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-12-21 16:40:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-21 16:40:28,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-21 16:40:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-12-21 16:40:28,412 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-12-21 16:40:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-21 16:40:28,412 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-21 16:40:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-21 16:40:28,412 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-21 16:40:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_status_work [2021-12-21 16:40:28,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_status_work [2021-12-21 16:40:28,413 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_response_cancel_work [2021-12-21 16:40:28,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_response_cancel_work [2021-12-21 16:40:28,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 16:40:28,413 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-21 16:40:28,413 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-21 16:40:28,413 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2021-12-21 16:40:28,413 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2021-12-21 16:40:28,413 INFO L130 BoogieDeclarations]: Found specification of procedure up [2021-12-21 16:40:28,414 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2021-12-21 16:40:28,414 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_get_kref [2021-12-21 16:40:28,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_get_kref [2021-12-21 16:40:28,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 16:40:28,414 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-21 16:40:28,415 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-12-21 16:40:28,415 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-12-21 16:40:28,415 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2021-12-21 16:40:28,416 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2021-12-21 16:40:28,416 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_status_cancel_work [2021-12-21 16:40:28,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_status_cancel_work [2021-12-21 16:40:28,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ftdi_module_lock [2021-12-21 16:40:28,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ftdi_module_lock [2021-12-21 16:40:28,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 16:40:28,416 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2021-12-21 16:40:28,417 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2021-12-21 16:40:28,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 16:40:28,417 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_cancel_work [2021-12-21 16:40:28,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_cancel_work [2021-12-21 16:40:28,417 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-12-21 16:40:28,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-12-21 16:40:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-21 16:40:28,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-21 16:40:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-21 16:40:28,418 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-21 16:40:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_do_callback [2021-12-21 16:40:28,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_do_callback [2021-12-21 16:40:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_requeue_work [2021-12-21 16:40:28,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_requeue_work [2021-12-21 16:40:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-21 16:40:28,419 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-21 16:40:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-21 16:40:28,419 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-21 16:40:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-12-21 16:40:28,420 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-12-21 16:40:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-21 16:40:28,420 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-21 16:40:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_found_controller [2021-12-21 16:40:28,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_found_controller [2021-12-21 16:40:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_setup_controller [2021-12-21 16:40:28,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_setup_controller [2021-12-21 16:40:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_gone_away [2021-12-21 16:40:28,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_gone_away [2021-12-21 16:40:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_config [2021-12-21 16:40:28,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_config [2021-12-21 16:40:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_respond_work [2021-12-21 16:40:28,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_respond_work [2021-12-21 16:40:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 16:40:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_status_requeue_work [2021-12-21 16:40:28,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_status_requeue_work [2021-12-21 16:40:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2021-12-21 16:40:28,422 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2021-12-21 16:40:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-12-21 16:40:28,423 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-12-21 16:40:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 16:40:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-21 16:40:28,423 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-21 16:40:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_reg [2021-12-21 16:40:28,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_reg [2021-12-21 16:40:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_disconnect [2021-12-21 16:40:28,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_disconnect [2021-12-21 16:40:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_respond_queue_work [2021-12-21 16:40:28,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_respond_queue_work [2021-12-21 16:40:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write [2021-12-21 16:40:28,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write [2021-12-21 16:40:28,425 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-21 16:40:28,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-21 16:40:28,427 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_abandon_completions [2021-12-21 16:40:28,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_abandon_completions [2021-12-21 16:40:28,427 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2021-12-21 16:40:28,427 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2021-12-21 16:40:28,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 16:40:28,428 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-21 16:40:28,428 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-21 16:40:28,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 16:40:28,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 16:40:28,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_89 [2021-12-21 16:40:28,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_89 [2021-12-21 16:40:28,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_88 [2021-12-21 16:40:28,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_88 [2021-12-21 16:40:28,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_87 [2021-12-21 16:40:28,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_87 [2021-12-21 16:40:28,429 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_command_work [2021-12-21 16:40:28,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_command_work [2021-12-21 16:40:28,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-21 16:40:28,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-21 16:40:28,430 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_put_kref [2021-12-21 16:40:28,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_put_kref [2021-12-21 16:40:28,430 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_abandon_targets [2021-12-21 16:40:28,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_abandon_targets [2021-12-21 16:40:28,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 16:40:28,430 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_pcimem [2021-12-21 16:40:28,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_pcimem [2021-12-21 16:40:28,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-21 16:40:28,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-21 16:40:28,431 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-12-21 16:40:28,431 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-12-21 16:40:28,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_u132_lock_of_usb_ftdi [2021-12-21 16:40:28,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_u132_lock_of_usb_ftdi [2021-12-21 16:40:28,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 16:40:28,431 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2021-12-21 16:40:28,431 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2021-12-21 16:40:28,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 16:40:28,432 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_response_requeue_work [2021-12-21 16:40:28,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_response_requeue_work [2021-12-21 16:40:28,432 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 16:40:28,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 16:40:28,432 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2021-12-21 16:40:28,432 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2021-12-21 16:40:28,432 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_queue_work [2021-12-21 16:40:28,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_queue_work [2021-12-21 16:40:28,432 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-21 16:40:28,432 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-21 16:40:28,433 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_pcimem [2021-12-21 16:40:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_pcimem [2021-12-21 16:40:28,433 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-12-21 16:40:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-12-21 16:40:28,433 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-12-21 16:40:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-12-21 16:40:28,433 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-21 16:40:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-21 16:40:28,433 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-21 16:40:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-21 16:40:28,434 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-21 16:40:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-21 16:40:28,434 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_reg [2021-12-21 16:40:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_reg [2021-12-21 16:40:28,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ftdi_module_lock [2021-12-21 16:40:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ftdi_module_lock [2021-12-21 16:40:28,434 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-12-21 16:40:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-12-21 16:40:28,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 16:40:28,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 16:40:28,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 16:40:29,062 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 16:40:29,064 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 16:40:29,626 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 16:40:40,127 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 16:40:40,148 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 16:40:40,149 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 16:40:40,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:40:40 BoogieIcfgContainer [2021-12-21 16:40:40,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 16:40:40,154 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 16:40:40,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 16:40:40,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 16:40:40,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 04:40:25" (1/3) ... [2021-12-21 16:40:40,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66d1db2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:40:40, skipping insertion in model container [2021-12-21 16:40:40,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:27" (2/3) ... [2021-12-21 16:40:40,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66d1db2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:40:40, skipping insertion in model container [2021-12-21 16:40:40,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:40:40" (3/3) ... [2021-12-21 16:40:40,165 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2021-12-21 16:40:40,168 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 16:40:40,169 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 16:40:40,212 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 16:40:40,221 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 16:40:40,222 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 16:40:40,268 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) [2021-12-21 16:40:40,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-21 16:40:40,280 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:40:40,280 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] [2021-12-21 16:40:40,281 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:40:40,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:40:40,284 INFO L85 PathProgramCache]: Analyzing trace with hash 841016865, now seen corresponding path program 1 times [2021-12-21 16:40:40,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:40:40,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557092468] [2021-12-21 16:40:40,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:40:40,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:40:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:40,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:40:40,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:40,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:40,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:40,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:40:40,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:40,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:40:40,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:40,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:40,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:40:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:40,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:40:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:40,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:40,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:40,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:40:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:40,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:40:40,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:40,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:40,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:40:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:40,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:40:40,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:40,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:40:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:40,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:40:40,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:40,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-21 16:40:40,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:40,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-21 16:40:40,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:40,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-21 16:40:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:40,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 16:40:40,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:40:40,821 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2021-12-21 16:40:40,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:40:40,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557092468] [2021-12-21 16:40:40,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557092468] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:40:40,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:40:40,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 16:40:40,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441230973] [2021-12-21 16:40:40,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:40:40,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 16:40:40,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:40:40,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 16:40:40,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:40:40,849 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) [2021-12-21 16:40:42,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:40:46,317 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:40:50,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:40:52,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:40:56,303 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:41:04,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:41:04,031 INFO L93 Difference]: Finished difference Result 3652 states and 5878 transitions. [2021-12-21 16:41:04,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 16:41:04,033 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 [2021-12-21 16:41:04,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:41:04,055 INFO L225 Difference]: With dead ends: 3652 [2021-12-21 16:41:04,055 INFO L226 Difference]: Without dead ends: 1969 [2021-12-21 16:41:04,080 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 [2021-12-21 16:41:04,083 INFO L933 BasicCegarLoop]: 2345 mSDtfsCounter, 914 mSDsluCounter, 2995 mSDsCounter, 0 mSdLazyCounter, 2349 mSolverCounterSat, 1242 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 952 SdHoareTripleChecker+Valid, 5340 SdHoareTripleChecker+Invalid, 3594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1242 IncrementalHoareTripleChecker+Valid, 2349 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.9s IncrementalHoareTripleChecker+Time [2021-12-21 16:41:04,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [952 Valid, 5340 Invalid, 3594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1242 Valid, 2349 Invalid, 3 Unknown, 0 Unchecked, 22.9s Time] [2021-12-21 16:41:04,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2021-12-21 16:41:04,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1660. [2021-12-21 16:41:04,230 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) [2021-12-21 16:41:04,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1660 states to 1660 states and 2460 transitions. [2021-12-21 16:41:04,244 INFO L78 Accepts]: Start accepts. Automaton has 1660 states and 2460 transitions. Word has length 135 [2021-12-21 16:41:04,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:41:04,245 INFO L470 AbstractCegarLoop]: Abstraction has 1660 states and 2460 transitions. [2021-12-21 16:41:04,245 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) [2021-12-21 16:41:04,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1660 states and 2460 transitions. [2021-12-21 16:41:04,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-21 16:41:04,252 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:41:04,253 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] [2021-12-21 16:41:04,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 16:41:04,253 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:41:04,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:41:04,254 INFO L85 PathProgramCache]: Analyzing trace with hash -2089123881, now seen corresponding path program 1 times [2021-12-21 16:41:04,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:41:04,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711466514] [2021-12-21 16:41:04,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:41:04,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:41:04,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:41:04,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:04,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:41:04,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:04,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:41:04,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:04,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:04,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:41:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:41:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:04,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:04,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-21 16:41:04,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-21 16:41:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-21 16:41:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 16:41:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:04,714 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2021-12-21 16:41:04,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:41:04,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711466514] [2021-12-21 16:41:04,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711466514] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:41:04,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:41:04,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:41:04,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784069046] [2021-12-21 16:41:04,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:41:04,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:41:04,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:41:04,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:41:04,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:41:04,718 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) [2021-12-21 16:41:09,942 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:41:13,563 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:41:15,588 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:41:26,981 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:41:30,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:41:30,177 INFO L93 Difference]: Finished difference Result 2033 states and 3176 transitions. [2021-12-21 16:41:30,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 16:41:30,178 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 135 [2021-12-21 16:41:30,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:41:30,190 INFO L225 Difference]: With dead ends: 2033 [2021-12-21 16:41:30,190 INFO L226 Difference]: Without dead ends: 2028 [2021-12-21 16:41:30,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:41:30,192 INFO L933 BasicCegarLoop]: 2335 mSDtfsCounter, 3069 mSDsluCounter, 3117 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 1721 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3211 SdHoareTripleChecker+Valid, 5452 SdHoareTripleChecker+Invalid, 4209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1721 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.2s IncrementalHoareTripleChecker+Time [2021-12-21 16:41:30,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3211 Valid, 5452 Invalid, 4209 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1721 Valid, 2485 Invalid, 3 Unknown, 0 Unchecked, 25.2s Time] [2021-12-21 16:41:30,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2021-12-21 16:41:30,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 1717. [2021-12-21 16:41:30,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1717 states, 1162 states have (on average 1.3881239242685026) internal successors, (1613), 1206 states have internal predecessors, (1613), 461 states have call successors, (461), 94 states have call predecessors, (461), 93 states have return successors, (454), 445 states have call predecessors, (454), 454 states have call successors, (454) [2021-12-21 16:41:30,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2528 transitions. [2021-12-21 16:41:30,250 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2528 transitions. Word has length 135 [2021-12-21 16:41:30,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:41:30,252 INFO L470 AbstractCegarLoop]: Abstraction has 1717 states and 2528 transitions. [2021-12-21 16:41:30,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-12-21 16:41:30,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2528 transitions. [2021-12-21 16:41:30,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-21 16:41:30,255 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:41:30,256 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, 1, 1, 1] [2021-12-21 16:41:30,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 16:41:30,257 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:41:30,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:41:30,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1454982344, now seen corresponding path program 1 times [2021-12-21 16:41:30,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:41:30,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708687650] [2021-12-21 16:41:30,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:41:30,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:41:30,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:30,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:41:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:30,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:30,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:30,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:41:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:30,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:30,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:30,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:30,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:41:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:30,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:30,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:30,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:41:30,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:30,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:30,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:30,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:41:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:30,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:30,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:30,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:30,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-21 16:41:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:30,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-21 16:41:30,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:30,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-21 16:41:30,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:30,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 16:41:30,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:30,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-21 16:41:30,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:30,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:30,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:30,549 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2021-12-21 16:41:30,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:41:30,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708687650] [2021-12-21 16:41:30,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708687650] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:41:30,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:41:30,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 16:41:30,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56268801] [2021-12-21 16:41:30,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:41:30,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 16:41:30,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:41:30,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 16:41:30,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-21 16:41:30,551 INFO L87 Difference]: Start difference. First operand 1717 states and 2528 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-21 16:41:33,954 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 []