./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-43_2a-drivers--usb--host--fotg210-hcd.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f 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-43_2a-drivers--usb--host--fotg210-hcd.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 6831c80473b3bd102fb10b7b3c65e4c88728eb3739081530d9e505e798afb064 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 16:21:50,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 16:21:50,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 16:21:50,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 16:21:50,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 16:21:50,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 16:21:50,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 16:21:50,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 16:21:50,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 16:21:50,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 16:21:50,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 16:21:50,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 16:21:50,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 16:21:50,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 16:21:50,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 16:21:50,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 16:21:50,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 16:21:50,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 16:21:50,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 16:21:50,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 16:21:50,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 16:21:50,769 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 16:21:50,770 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 16:21:50,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 16:21:50,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 16:21:50,776 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 16:21:50,776 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 16:21:50,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 16:21:50,777 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 16:21:50,778 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 16:21:50,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 16:21:50,779 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 16:21:50,780 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 16:21:50,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 16:21:50,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 16:21:50,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 16:21:50,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 16:21:50,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 16:21:50,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 16:21:50,784 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 16:21:50,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 16:21:50,785 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 16:21:50,812 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 16:21:50,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 16:21:50,813 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 16:21:50,813 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 16:21:50,814 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 16:21:50,815 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 16:21:50,815 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 16:21:50,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 16:21:50,815 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 16:21:50,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 16:21:50,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 16:21:50,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 16:21:50,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 16:21:50,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 16:21:50,817 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 16:21:50,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 16:21:50,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 16:21:50,817 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 16:21:50,817 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 16:21:50,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 16:21:50,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 16:21:50,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 16:21:50,818 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 16:21:50,818 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 16:21:50,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 16:21:50,819 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 16:21:50,819 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 16:21:50,819 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 16:21:50,819 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 16:21:50,819 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6831c80473b3bd102fb10b7b3c65e4c88728eb3739081530d9e505e798afb064 [2021-11-07 16:21:51,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 16:21:51,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 16:21:51,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 16:21:51,038 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 16:21:51,038 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 16:21:51,039 INFO L432 ainManager$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-43_2a-drivers--usb--host--fotg210-hcd.ko-entry_point.cil.out.i [2021-11-07 16:21:51,101 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/259e68bb5/58f67cdd0fac4a6ab7f08a1857d5ce2b/FLAGba6ddba45 [2021-11-07 16:21:51,811 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 16:21:51,811 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--fotg210-hcd.ko-entry_point.cil.out.i [2021-11-07 16:21:51,880 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/259e68bb5/58f67cdd0fac4a6ab7f08a1857d5ce2b/FLAGba6ddba45 [2021-11-07 16:21:52,123 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/259e68bb5/58f67cdd0fac4a6ab7f08a1857d5ce2b [2021-11-07 16:21:52,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 16:21:52,127 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 16:21:52,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 16:21:52,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 16:21:52,132 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 16:21:52,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:21:52" (1/1) ... [2021-11-07 16:21:52,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@688a8196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:52, skipping insertion in model container [2021-11-07 16:21:52,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:21:52" (1/1) ... [2021-11-07 16:21:52,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 16:21:52,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 16:21:54,484 WARN L228 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-43_2a-drivers--usb--host--fotg210-hcd.ko-entry_point.cil.out.i[367830,367843] [2021-11-07 16:21:54,526 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-07 16:21:54,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 16:21:54,559 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 16:21:54,929 WARN L228 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-43_2a-drivers--usb--host--fotg210-hcd.ko-entry_point.cil.out.i[367830,367843] [2021-11-07 16:21:54,933 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-07 16:21:54,936 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 16:21:55,005 INFO L208 MainTranslator]: Completed translation [2021-11-07 16:21:55,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:55 WrapperNode [2021-11-07 16:21:55,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 16:21:55,007 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 16:21:55,007 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 16:21:55,008 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 16:21:55,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:55" (1/1) ... [2021-11-07 16:21:55,128 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:55" (1/1) ... [2021-11-07 16:22:03,340 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 16:22:03,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 16:22:03,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 16:22:03,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 16:22:03,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:55" (1/1) ... [2021-11-07 16:22:03,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:55" (1/1) ... [2021-11-07 16:22:04,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:55" (1/1) ... [2021-11-07 16:22:04,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:55" (1/1) ... [2021-11-07 16:22:07,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:55" (1/1) ... [2021-11-07 16:22:08,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:55" (1/1) ... [2021-11-07 16:22:08,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:55" (1/1) ... [2021-11-07 16:22:10,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 16:22:10,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 16:22:10,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 16:22:10,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 16:22:10,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:55" (1/1) ... [2021-11-07 16:22:10,104 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 16:22:10,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 16:22:10,150 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) [2021-11-07 16:22:10,153 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 [2021-11-07 16:22:10,196 INFO L130 BoogieDeclarations]: Found specification of procedure end_unlink_async [2021-11-07 16:22:10,196 INFO L138 BoogieDeclarations]: Found implementation of procedure end_unlink_async [2021-11-07 16:22:10,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 16:22:10,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 16:22:10,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-07 16:22:10,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 16:22:10,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 16:22:10,197 INFO L130 BoogieDeclarations]: Found specification of procedure start_iaa_cycle [2021-11-07 16:22:10,197 INFO L138 BoogieDeclarations]: Found implementation of procedure start_iaa_cycle [2021-11-07 16:22:10,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 16:22:10,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 16:22:10,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 16:22:10,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-07 16:22:10,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 16:22:10,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 16:22:10,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 16:22:10,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 16:25:23,019 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint platform_driver_unregister_returnLabel#2: ~ldv_state_variable_1~0 := 0; [2021-11-07 16:25:23,122 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 16:25:23,122 INFO L299 CfgBuilder]: Removed 41566 assume(true) statements. [2021-11-07 16:25:23,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:25:23 BoogieIcfgContainer [2021-11-07 16:25:23,157 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 16:25:23,158 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 16:25:23,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 16:25:23,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 16:25:23,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:21:52" (1/3) ... [2021-11-07 16:25:23,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62aa39b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:25:23, skipping insertion in model container [2021-11-07 16:25:23,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:55" (2/3) ... [2021-11-07 16:25:23,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62aa39b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:25:23, skipping insertion in model container [2021-11-07 16:25:23,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:25:23" (3/3) ... [2021-11-07 16:25:23,164 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--fotg210-hcd.ko-entry_point.cil.out.i [2021-11-07 16:25:23,168 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 16:25:23,168 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 109 error locations. [2021-11-07 16:25:23,290 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 16:25:23,295 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 [2021-11-07 16:25:23,295 INFO L340 AbstractCegarLoop]: Starting to check reachability of 109 error locations. [2021-11-07 16:25:23,712 INFO L276 IsEmpty]: Start isEmpty. Operand has 48281 states, 48131 states have (on average 1.398724314890611) internal successors, (67322), 48277 states have internal predecessors, (67322), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-11-07 16:25:23,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-07 16:25:23,720 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:25:23,720 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 16:25:23,721 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 106 more)] === [2021-11-07 16:25:23,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:25:23,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1770680212, now seen corresponding path program 1 times [2021-11-07 16:25:23,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:25:23,731 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355907129] [2021-11-07 16:25:23,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:25:23,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:25:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:25:24,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 16:25:24,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:25:24,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355907129] [2021-11-07 16:25:24,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355907129] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:25:24,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:25:24,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 16:25:24,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950599221] [2021-11-07 16:25:24,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:25:24,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 16:25:24,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:25:24,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 16:25:24,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 16:25:24,713 INFO L87 Difference]: Start difference. First operand has 48281 states, 48131 states have (on average 1.398724314890611) internal successors, (67322), 48277 states have internal predecessors, (67322), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 2 states, 2 states have (on average 53.5) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:25:26,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:25:26,256 INFO L93 Difference]: Finished difference Result 96558 states and 134791 transitions. [2021-11-07 16:25:26,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 16:25:26,258 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 53.5) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-11-07 16:25:26,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:25:26,467 INFO L225 Difference]: With dead ends: 96558 [2021-11-07 16:25:26,467 INFO L226 Difference]: Without dead ends: 47992 [2021-11-07 16:25:26,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 16:25:26,549 INFO L933 BasicCegarLoop]: 66911 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66911 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 134.05ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 16:25:26,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 66911 Invalid, 0 Unknown, 0 Unchecked, 134.05ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 16:25:26,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47992 states. [2021-11-07 16:25:27,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47992 to 47992. [2021-11-07 16:25:27,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47992 states, 47843 states have (on average 1.3867859456973852) internal successors, (66348), 47988 states have internal predecessors, (66348), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-11-07 16:25:27,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47992 states to 47992 states and 66424 transitions. [2021-11-07 16:25:27,748 INFO L78 Accepts]: Start accepts. Automaton has 47992 states and 66424 transitions. Word has length 107 [2021-11-07 16:25:27,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:25:27,748 INFO L470 AbstractCegarLoop]: Abstraction has 47992 states and 66424 transitions. [2021-11-07 16:25:27,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 53.5) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:25:27,749 INFO L276 IsEmpty]: Start isEmpty. Operand 47992 states and 66424 transitions. [2021-11-07 16:25:27,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-07 16:25:27,755 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:25:27,755 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 16:25:27,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 16:25:27,756 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 106 more)] === [2021-11-07 16:25:27,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:25:27,758 INFO L85 PathProgramCache]: Analyzing trace with hash -336976680, now seen corresponding path program 1 times [2021-11-07 16:25:27,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:25:27,759 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185184298] [2021-11-07 16:25:27,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:25:27,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:25:28,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:25:28,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 16:25:28,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:25:28,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185184298] [2021-11-07 16:25:28,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185184298] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:25:28,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:25:28,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:25:28,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174308204] [2021-11-07 16:25:28,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:25:28,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:25:28,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:25:28,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:25:28,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:25:28,545 INFO L87 Difference]: Start difference. First operand 47992 states and 66424 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:25:30,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:25:30,443 INFO L93 Difference]: Finished difference Result 137727 states and 190659 transitions. [2021-11-07 16:25:30,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:25:30,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-11-07 16:25:30,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:25:30,690 INFO L225 Difference]: With dead ends: 137727 [2021-11-07 16:25:30,690 INFO L226 Difference]: Without dead ends: 89832 [2021-11-07 16:25:31,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.41ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:25:31,048 INFO L933 BasicCegarLoop]: 66456 mSDtfsCounter, 58035 mSDsluCounter, 66294 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 182.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 58035 SdHoareTripleChecker+Valid, 132750 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 148.05ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 204.62ms IncrementalHoareTripleChecker+Time [2021-11-07 16:25:31,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58035 Valid, 132750 Invalid, 17 Unknown, 0 Unchecked, 148.05ms Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 204.62ms Time] [2021-11-07 16:25:31,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89832 states.