./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-usb-core-usbcore.ko.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-3.0/module_get_put-drivers-usb-core-usbcore.ko.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 6ab970527647e5ab08d4f5c3b11266fdb86c463377e2221a4694f62e2454c23c --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 10:29:10,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 10:29:10,263 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 10:29:10,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 10:29:10,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 10:29:10,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 10:29:10,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 10:29:10,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 10:29:10,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 10:29:10,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 10:29:10,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 10:29:10,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 10:29:10,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 10:29:10,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 10:29:10,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 10:29:10,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 10:29:10,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 10:29:10,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 10:29:10,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 10:29:10,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 10:29:10,339 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 10:29:10,343 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 10:29:10,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 10:29:10,345 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 10:29:10,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 10:29:10,352 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 10:29:10,353 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 10:29:10,354 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 10:29:10,354 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 10:29:10,355 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 10:29:10,355 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 10:29:10,356 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 10:29:10,357 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 10:29:10,358 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 10:29:10,359 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 10:29:10,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 10:29:10,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 10:29:10,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 10:29:10,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 10:29:10,361 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 10:29:10,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 10:29:10,363 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 10:29:10,380 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 10:29:10,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 10:29:10,382 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 10:29:10,382 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 10:29:10,383 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 10:29:10,383 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 10:29:10,383 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 10:29:10,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 10:29:10,384 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 10:29:10,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 10:29:10,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 10:29:10,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 10:29:10,385 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 10:29:10,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 10:29:10,385 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 10:29:10,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 10:29:10,386 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 10:29:10,386 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 10:29:10,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 10:29:10,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 10:29:10,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 10:29:10,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 10:29:10,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 10:29:10,387 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 10:29:10,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 10:29:10,387 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 10:29:10,387 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 10:29:10,387 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 10:29:10,388 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 10:29:10,388 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ab970527647e5ab08d4f5c3b11266fdb86c463377e2221a4694f62e2454c23c [2021-11-07 10:29:10,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 10:29:10,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 10:29:10,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 10:29:10,627 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 10:29:10,628 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 10:29:10,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-usb-core-usbcore.ko.cil.out.i [2021-11-07 10:29:10,704 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ed36b261/7f9375ca9e5f4eb8825092aa9c0f412d/FLAGb91cec27d [2021-11-07 10:29:11,631 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 10:29:11,632 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-usb-core-usbcore.ko.cil.out.i [2021-11-07 10:29:11,716 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ed36b261/7f9375ca9e5f4eb8825092aa9c0f412d/FLAGb91cec27d [2021-11-07 10:29:12,162 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ed36b261/7f9375ca9e5f4eb8825092aa9c0f412d [2021-11-07 10:29:12,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 10:29:12,166 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 10:29:12,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 10:29:12,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 10:29:12,180 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 10:29:12,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:29:12" (1/1) ... [2021-11-07 10:29:12,181 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59e64343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:29:12, skipping insertion in model container [2021-11-07 10:29:12,182 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:29:12" (1/1) ... [2021-11-07 10:29:12,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 10:29:12,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 10:29:14,095 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-3.0/module_get_put-drivers-usb-core-usbcore.ko.cil.out.i[134117,134130] [2021-11-07 10:29:23,818 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-07 10:29:23,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 10:29:23,932 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 10:29:24,052 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-3.0/module_get_put-drivers-usb-core-usbcore.ko.cil.out.i[134117,134130] [2021-11-07 10:29:24,752 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-07 10:29:24,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 10:29:25,220 INFO L208 MainTranslator]: Completed translation [2021-11-07 10:29:25,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:29:25 WrapperNode [2021-11-07 10:29:25,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 10:29:25,234 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 10:29:25,235 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 10:29:25,235 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 10:29:25,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:29:25" (1/1) ... [2021-11-07 10:29:25,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:29:25" (1/1) ... [2021-11-07 10:29:26,869 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 10:29:26,870 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 10:29:26,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 10:29:26,870 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 10:29:26,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:29:25" (1/1) ... [2021-11-07 10:29:26,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:29:25" (1/1) ... [2021-11-07 10:29:27,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:29:25" (1/1) ... [2021-11-07 10:29:27,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:29:25" (1/1) ... [2021-11-07 10:29:27,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:29:25" (1/1) ... [2021-11-07 10:29:28,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:29:25" (1/1) ... [2021-11-07 10:29:28,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:29:25" (1/1) ... [2021-11-07 10:29:28,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 10:29:28,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 10:29:28,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 10:29:28,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 10:29:28,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:29:25" (1/1) ... [2021-11-07 10:29:28,486 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 10:29:28,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:29:28,524 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 10:29:28,543 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 10:29:28,702 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-11-07 10:29:28,702 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-11-07 10:29:28,702 INFO L130 BoogieDeclarations]: Found specification of procedure usb_disable_endpoint [2021-11-07 10:29:28,702 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_disable_endpoint [2021-11-07 10:29:28,702 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_async [2021-11-07 10:29:28,703 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_async [2021-11-07 10:29:28,703 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_all_async [2021-11-07 10:29:28,703 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_all_async [2021-11-07 10:29:28,703 INFO L130 BoogieDeclarations]: Found specification of procedure usb_runtime_resume [2021-11-07 10:29:28,703 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_runtime_resume [2021-11-07 10:29:28,703 INFO L130 BoogieDeclarations]: Found specification of procedure hub_disconnect [2021-11-07 10:29:28,703 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_disconnect [2021-11-07 10:29:28,703 INFO L130 BoogieDeclarations]: Found specification of procedure hub_hub_status [2021-11-07 10:29:28,704 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_hub_status [2021-11-07 10:29:28,704 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-07 10:29:28,704 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_bulk_urbs [2021-11-07 10:29:28,704 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_bulk_urbs [2021-11-07 10:29:28,704 INFO L130 BoogieDeclarations]: Found specification of procedure hub_port_logical_disconnect [2021-11-07 10:29:28,704 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_port_logical_disconnect [2021-11-07 10:29:28,704 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_flush_endpoint [2021-11-07 10:29:28,704 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_flush_endpoint [2021-11-07 10:29:28,705 INFO L130 BoogieDeclarations]: Found specification of procedure get_port_status [2021-11-07 10:29:28,705 INFO L138 BoogieDeclarations]: Found implementation of procedure get_port_status [2021-11-07 10:29:28,705 INFO L130 BoogieDeclarations]: Found specification of procedure kill_litter_super [2021-11-07 10:29:28,705 INFO L130 BoogieDeclarations]: Found specification of procedure hub_irq [2021-11-07 10:29:28,705 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_irq [2021-11-07 10:29:28,705 INFO L130 BoogieDeclarations]: Found specification of procedure usb_port_suspend [2021-11-07 10:29:28,705 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_port_suspend [2021-11-07 10:29:28,705 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_device_descriptor [2021-11-07 10:29:28,705 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_device_descriptor [2021-11-07 10:29:28,706 INFO L130 BoogieDeclarations]: Found specification of procedure hub_quiesce [2021-11-07 10:29:28,706 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_quiesce [2021-11-07 10:29:28,706 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb [2021-11-07 10:29:28,706 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb [2021-11-07 10:29:28,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 10:29:28,706 INFO L130 BoogieDeclarations]: Found specification of procedure usb_dev_complete [2021-11-07 10:29:28,706 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_dev_complete [2021-11-07 10:29:28,706 INFO L130 BoogieDeclarations]: Found specification of procedure hub_port_connect_change [2021-11-07 10:29:28,706 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_port_connect_change [2021-11-07 10:29:28,707 INFO L130 BoogieDeclarations]: Found specification of procedure __usb_queue_reset_device [2021-11-07 10:29:28,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __usb_queue_reset_device [2021-11-07 10:29:28,707 INFO L130 BoogieDeclarations]: Found specification of procedure usb_probe_interface [2021-11-07 10:29:28,707 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_probe_interface [2021-11-07 10:29:28,707 INFO L130 BoogieDeclarations]: Found specification of procedure rh_urb_enqueue [2021-11-07 10:29:28,707 INFO L138 BoogieDeclarations]: Found implementation of procedure rh_urb_enqueue [2021-11-07 10:29:28,707 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-11-07 10:29:28,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-11-07 10:29:28,707 INFO L130 BoogieDeclarations]: Found specification of procedure clear_hub_feature [2021-11-07 10:29:28,708 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_hub_feature [2021-11-07 10:29:28,708 INFO L130 BoogieDeclarations]: Found specification of procedure usb_suspend [2021-11-07 10:29:28,708 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_suspend [2021-11-07 10:29:28,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 10:29:28,708 INFO L130 BoogieDeclarations]: Found specification of procedure usb_resume_interface [2021-11-07 10:29:28,708 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_resume_interface [2021-11-07 10:29:28,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 10:29:28,708 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 10:29:28,708 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-11-07 10:29:28,709 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-11-07 10:29:28,709 INFO L130 BoogieDeclarations]: Found specification of procedure set_port_led [2021-11-07 10:29:28,709 INFO L138 BoogieDeclarations]: Found implementation of procedure set_port_led [2021-11-07 10:29:28,709 INFO L130 BoogieDeclarations]: Found specification of procedure usb_runtime_suspend [2021-11-07 10:29:28,709 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_runtime_suspend [2021-11-07 10:29:28,709 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_langid [2021-11-07 10:29:28,709 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_langid [2021-11-07 10:29:28,709 INFO L130 BoogieDeclarations]: Found specification of procedure usb_disable_interface [2021-11-07 10:29:28,710 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_disable_interface [2021-11-07 10:29:28,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 10:29:28,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 10:29:28,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 10:29:28,712 INFO L130 BoogieDeclarations]: Found specification of procedure usb_dev_freeze [2021-11-07 10:29:28,712 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_dev_freeze [2021-11-07 10:29:28,712 INFO L130 BoogieDeclarations]: Found specification of procedure hub_thread [2021-11-07 10:29:28,712 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_thread [2021-11-07 10:29:28,712 INFO L130 BoogieDeclarations]: Found specification of procedure hub_pre_reset [2021-11-07 10:29:28,713 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_pre_reset [2021-11-07 10:29:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure usb_start_wait_urb [2021-11-07 10:29:28,713 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_start_wait_urb [2021-11-07 10:29:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure hub_port_reset [2021-11-07 10:29:28,713 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_port_reset [2021-11-07 10:29:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure usb_rebind_intf [2021-11-07 10:29:28,713 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_rebind_intf [2021-11-07 10:29:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure usb_resume_both [2021-11-07 10:29:28,713 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_resume_both [2021-11-07 10:29:28,714 INFO L130 BoogieDeclarations]: Found specification of procedure simple_statfs [2021-11-07 10:29:28,714 INFO L130 BoogieDeclarations]: Found specification of procedure hub_events [2021-11-07 10:29:28,714 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_events [2021-11-07 10:29:28,714 INFO L130 BoogieDeclarations]: Found specification of procedure usb_disable_device [2021-11-07 10:29:28,714 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_disable_device [2021-11-07 10:29:28,714 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_giveback_urb [2021-11-07 10:29:28,715 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_giveback_urb [2021-11-07 10:29:28,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 10:29:28,715 INFO L130 BoogieDeclarations]: Found specification of procedure check_highspeed [2021-11-07 10:29:28,715 INFO L138 BoogieDeclarations]: Found implementation of procedure check_highspeed [2021-11-07 10:29:28,715 INFO L130 BoogieDeclarations]: Found specification of procedure recursively_mark_NOTATTACHED [2021-11-07 10:29:28,715 INFO L138 BoogieDeclarations]: Found implementation of procedure recursively_mark_NOTATTACHED [2021-11-07 10:29:28,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 10:29:28,716 INFO L130 BoogieDeclarations]: Found specification of procedure usb_dev_poweroff [2021-11-07 10:29:28,716 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_dev_poweroff [2021-11-07 10:29:28,716 INFO L130 BoogieDeclarations]: Found specification of procedure usb_dev_suspend [2021-11-07 10:29:28,716 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_dev_suspend [2021-11-07 10:29:28,716 INFO L130 BoogieDeclarations]: Found specification of procedure usb_forced_unbind_intf [2021-11-07 10:29:28,717 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_forced_unbind_intf [2021-11-07 10:29:28,717 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep0_reinit [2021-11-07 10:29:28,717 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep0_reinit [2021-11-07 10:29:28,717 INFO L130 BoogieDeclarations]: Found specification of procedure do_unbind_rebind [2021-11-07 10:29:28,717 INFO L138 BoogieDeclarations]: Found implementation of procedure do_unbind_rebind [2021-11-07 10:29:28,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 10:29:28,717 INFO L130 BoogieDeclarations]: Found specification of procedure get_hub_descriptor [2021-11-07 10:29:28,717 INFO L138 BoogieDeclarations]: Found implementation of procedure get_hub_descriptor [2021-11-07 10:29:28,717 INFO L130 BoogieDeclarations]: Found specification of procedure usb_enumerate_device_otg [2021-11-07 10:29:28,718 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_enumerate_device_otg [2021-11-07 10:29:28,718 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_device [2021-11-07 10:29:28,718 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_reset_device [2021-11-07 10:29:28,718 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2021-11-07 10:29:28,718 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2021-11-07 10:29:28,718 INFO L130 BoogieDeclarations]: Found specification of procedure hub_port_wait_reset [2021-11-07 10:29:28,718 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_port_wait_reset [2021-11-07 10:29:28,719 INFO L130 BoogieDeclarations]: Found specification of procedure usb_internal_control_msg [2021-11-07 10:29:28,719 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_internal_control_msg [2021-11-07 10:29:28,719 INFO L130 BoogieDeclarations]: Found specification of procedure generic_suspend [2021-11-07 10:29:28,722 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_suspend [2021-11-07 10:29:28,722 INFO L130 BoogieDeclarations]: Found specification of procedure hub_port_status [2021-11-07 10:29:28,722 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_port_status [2021-11-07 10:29:28,723 INFO L130 BoogieDeclarations]: Found specification of procedure hub_suspend [2021-11-07 10:29:28,723 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_suspend [2021-11-07 10:29:28,723 INFO L130 BoogieDeclarations]: Found specification of procedure usb_enumerate_device [2021-11-07 10:29:28,724 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_enumerate_device [2021-11-07 10:29:28,724 INFO L130 BoogieDeclarations]: Found specification of procedure check_port_resume_type [2021-11-07 10:29:28,724 INFO L138 BoogieDeclarations]: Found implementation of procedure check_port_resume_type [2021-11-07 10:29:28,724 INFO L130 BoogieDeclarations]: Found specification of procedure generic_delete_inode [2021-11-07 10:29:28,724 INFO L130 BoogieDeclarations]: Found specification of procedure usb_port_resume [2021-11-07 10:29:28,724 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_port_resume [2021-11-07 10:29:28,724 INFO L130 BoogieDeclarations]: Found specification of procedure hub_configure [2021-11-07 10:29:28,724 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_configure [2021-11-07 10:29:28,725 INFO L130 BoogieDeclarations]: Found specification of procedure usb_dev_resume [2021-11-07 10:29:28,725 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_dev_resume [2021-11-07 10:29:28,725 INFO L130 BoogieDeclarations]: Found specification of procedure generic_disconnect [2021-11-07 10:29:28,725 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_disconnect [2021-11-07 10:29:28,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-07 10:29:28,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 10:29:28,725 INFO L130 BoogieDeclarations]: Found specification of procedure hub_clear_tt_buffer [2021-11-07 10:29:28,725 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_clear_tt_buffer [2021-11-07 10:29:28,725 INFO L130 BoogieDeclarations]: Found specification of procedure descriptors_changed [2021-11-07 10:29:28,725 INFO L138 BoogieDeclarations]: Found implementation of procedure descriptors_changed [2021-11-07 10:29:28,726 INFO L130 BoogieDeclarations]: Found specification of procedure hub_tt_work [2021-11-07 10:29:28,726 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_tt_work [2021-11-07 10:29:28,726 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2021-11-07 10:29:28,726 INFO L130 BoogieDeclarations]: Found specification of procedure usb_suspend_interface [2021-11-07 10:29:28,726 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_suspend_interface [2021-11-07 10:29:28,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 10:29:28,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 10:29:28,726 INFO L130 BoogieDeclarations]: Found specification of procedure hub_reset_resume [2021-11-07 10:29:28,726 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_reset_resume [2021-11-07 10:29:28,727 INFO L130 BoogieDeclarations]: Found specification of procedure usb_suspend_device [2021-11-07 10:29:28,727 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_suspend_device [2021-11-07 10:29:28,727 INFO L130 BoogieDeclarations]: Found specification of procedure clear_port_feature [2021-11-07 10:29:28,727 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_port_feature [2021-11-07 10:29:28,727 INFO L130 BoogieDeclarations]: Found specification of procedure usb_cache_string [2021-11-07 10:29:28,727 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_cache_string [2021-11-07 10:29:28,727 INFO L130 BoogieDeclarations]: Found specification of procedure led_work [2021-11-07 10:29:28,727 INFO L138 BoogieDeclarations]: Found implementation of procedure led_work [2021-11-07 10:29:28,727 INFO L130 BoogieDeclarations]: Found specification of procedure generic_probe [2021-11-07 10:29:28,727 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_probe [2021-11-07 10:29:28,728 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unbind_interface [2021-11-07 10:29:28,728 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unbind_interface [2021-11-07 10:29:28,728 INFO L130 BoogieDeclarations]: Found specification of procedure usb_rh_urb_dequeue [2021-11-07 10:29:28,728 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_rh_urb_dequeue [2021-11-07 10:29:28,728 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-07 10:29:28,728 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-07 10:29:28,728 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_async_on_interface [2021-11-07 10:29:28,728 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_async_on_interface [2021-11-07 10:29:28,728 INFO L130 BoogieDeclarations]: Found specification of procedure async_completed [2021-11-07 10:29:28,729 INFO L138 BoogieDeclarations]: Found implementation of procedure async_completed [2021-11-07 10:29:28,729 INFO L130 BoogieDeclarations]: Found specification of procedure usb_create_sysfs_intf_files [2021-11-07 10:29:28,729 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_create_sysfs_intf_files [2021-11-07 10:29:28,729 INFO L130 BoogieDeclarations]: Found specification of procedure usb_resume [2021-11-07 10:29:28,729 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_resume [2021-11-07 10:29:28,729 INFO L130 BoogieDeclarations]: Found specification of procedure driver_set_config_work [2021-11-07 10:29:28,729 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_set_config_work [2021-11-07 10:29:28,729 INFO L130 BoogieDeclarations]: Found specification of procedure usbdev_release [2021-11-07 10:29:28,729 INFO L138 BoogieDeclarations]: Found implementation of procedure usbdev_release [2021-11-07 10:29:28,729 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_dev [2021-11-07 10:29:28,730 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_dev [2021-11-07 10:29:28,730 INFO L130 BoogieDeclarations]: Found specification of procedure hub_init_func2 [2021-11-07 10:29:28,730 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_init_func2 [2021-11-07 10:29:28,730 INFO L130 BoogieDeclarations]: Found specification of procedure hub_init_func3 [2021-11-07 10:29:28,730 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_init_func3 [2021-11-07 10:29:28,730 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 10:29:28,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 10:29:28,730 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-07 10:29:28,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-07 10:29:28,731 INFO L130 BoogieDeclarations]: Found specification of procedure usb_suspend_both [2021-11-07 10:29:28,731 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_suspend_both [2021-11-07 10:29:28,731 INFO L130 BoogieDeclarations]: Found specification of procedure hub_probe [2021-11-07 10:29:28,731 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_probe [2021-11-07 10:29:28,731 INFO L130 BoogieDeclarations]: Found specification of procedure hub_resume [2021-11-07 10:29:28,731 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_resume [2021-11-07 10:29:28,731 INFO L130 BoogieDeclarations]: Found specification of procedure hub_post_reset [2021-11-07 10:29:28,731 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_post_reset [2021-11-07 10:29:28,731 INFO L130 BoogieDeclarations]: Found specification of procedure usb_open [2021-11-07 10:29:28,732 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_open [2021-11-07 10:29:28,732 INFO L130 BoogieDeclarations]: Found specification of procedure usb_dev_thaw [2021-11-07 10:29:28,732 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_dev_thaw [2021-11-07 10:29:28,732 INFO L130 BoogieDeclarations]: Found specification of procedure hub_port_init [2021-11-07 10:29:28,732 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_port_init [2021-11-07 10:29:28,732 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2021-11-07 10:29:28,732 INFO L130 BoogieDeclarations]: Found specification of procedure rh_call_control [2021-11-07 10:29:28,732 INFO L138 BoogieDeclarations]: Found implementation of procedure rh_call_control [2021-11-07 10:29:28,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 10:29:28,733 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_configuration [2021-11-07 10:29:28,733 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_configuration [2021-11-07 10:29:28,733 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_configuration [2021-11-07 10:29:28,733 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_configuration [2021-11-07 10:29:28,733 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2021-11-07 10:29:28,733 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2021-11-07 10:29:28,733 INFO L130 BoogieDeclarations]: Found specification of procedure releaseintf [2021-11-07 10:29:28,733 INFO L138 BoogieDeclarations]: Found implementation of procedure releaseintf [2021-11-07 10:29:28,733 INFO L130 BoogieDeclarations]: Found specification of procedure hub_power_on [2021-11-07 10:29:28,734 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_power_on [2021-11-07 10:29:28,734 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_and_verify_device [2021-11-07 10:29:28,734 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_reset_and_verify_device [2021-11-07 10:29:28,734 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_string [2021-11-07 10:29:28,734 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_string [2021-11-07 10:29:28,734 INFO L130 BoogieDeclarations]: Found specification of procedure hub_port_debounce [2021-11-07 10:29:28,734 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_port_debounce [2021-11-07 10:29:28,734 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_bus_resume [2021-11-07 10:29:28,734 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_bus_resume [2021-11-07 10:29:28,734 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unbind_device [2021-11-07 10:29:28,735 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unbind_device [2021-11-07 10:29:28,735 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_alloc_bandwidth [2021-11-07 10:29:28,735 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_alloc_bandwidth [2021-11-07 10:29:28,735 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_status [2021-11-07 10:29:28,735 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_status [2021-11-07 10:29:28,735 INFO L130 BoogieDeclarations]: Found specification of procedure generic_resume [2021-11-07 10:29:28,735 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_resume [2021-11-07 10:29:28,735 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_submit_urb [2021-11-07 10:29:28,735 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_submit_urb [2021-11-07 10:29:28,736 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2021-11-07 10:29:28,736 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2021-11-07 10:29:28,736 INFO L130 BoogieDeclarations]: Found specification of procedure usb_probe_device [2021-11-07 10:29:28,736 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_probe_device [2021-11-07 10:29:28,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 10:29:28,736 INFO L130 BoogieDeclarations]: Found specification of procedure driver_disconnect [2021-11-07 10:29:28,736 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_disconnect [2021-11-07 10:29:28,736 INFO L130 BoogieDeclarations]: Found specification of procedure hub_port_disable [2021-11-07 10:29:28,736 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_port_disable [2021-11-07 10:29:28,736 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2021-11-07 10:29:28,737 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2021-11-07 10:29:28,737 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string_sub [2021-11-07 10:29:28,737 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string_sub [2021-11-07 10:29:28,737 INFO L130 BoogieDeclarations]: Found specification of procedure usb_dev_restore [2021-11-07 10:29:28,737 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_dev_restore [2021-11-07 10:29:28,737 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_bus_suspend [2021-11-07 10:29:28,737 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_bus_suspend [2021-11-07 10:29:28,737 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2021-11-07 10:29:28,737 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2021-11-07 10:29:28,738 INFO L130 BoogieDeclarations]: Found specification of procedure usb_resume_device [2021-11-07 10:29:28,738 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_resume_device [2021-11-07 10:29:28,738 INFO L130 BoogieDeclarations]: Found specification of procedure sg_complete [2021-11-07 10:29:28,738 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_complete [2021-11-07 10:29:28,738 INFO L130 BoogieDeclarations]: Found specification of procedure usb_new_device [2021-11-07 10:29:28,738 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_new_device [2021-11-07 10:29:28,738 INFO L130 BoogieDeclarations]: Found specification of procedure unlink1 [2021-11-07 10:29:28,738 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink1 [2021-11-07 10:29:28,738 INFO L130 BoogieDeclarations]: Found specification of procedure usb_disconnect [2021-11-07 10:29:28,738 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_disconnect [2021-11-07 10:29:28,739 INFO L130 BoogieDeclarations]: Found specification of procedure hub_activate [2021-11-07 10:29:28,739 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_activate [2021-11-07 10:29:28,739 INFO L130 BoogieDeclarations]: Found specification of procedure hub_port_warm_reset [2021-11-07 10:29:28,739 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_port_warm_reset [2021-11-07 10:29:28,739 INFO L130 BoogieDeclarations]: Found specification of procedure finish_port_resume [2021-11-07 10:29:28,739 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_port_resume [2021-11-07 10:29:28,739 INFO L130 BoogieDeclarations]: Found specification of procedure hub_set_address [2021-11-07 10:29:28,739 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_set_address [2021-11-07 10:29:28,739 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-07 10:29:28,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-07 10:29:28,740 INFO L130 BoogieDeclarations]: Found specification of procedure get_hub_status [2021-11-07 10:29:28,740 INFO L138 BoogieDeclarations]: Found implementation of procedure get_hub_status [2021-11-07 10:29:28,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 10:29:28,740 INFO L130 BoogieDeclarations]: Found specification of procedure set_port_feature [2021-11-07 10:29:28,740 INFO L138 BoogieDeclarations]: Found implementation of procedure set_port_feature [2021-11-07 10:29:28,740 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_descriptor [2021-11-07 10:29:28,740 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_descriptor [2021-11-07 10:29:31,519 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:31,520 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:31,521 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:31,836 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-11-07 10:29:31,836 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-11-07 10:29:31,836 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##68: assume !false; [2021-11-07 10:29:31,836 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##67: assume false; [2021-11-07 10:29:31,836 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##100: assume false; [2021-11-07 10:29:31,836 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##101: assume !false; [2021-11-07 10:29:31,908 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:31,909 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:31,909 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:31,910 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:31,911 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:32,323 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##94: assume false; [2021-11-07 10:29:32,323 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##95: assume !false; [2021-11-07 10:29:32,323 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##80: assume !false; [2021-11-07 10:29:32,323 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##79: assume false; [2021-11-07 10:29:32,323 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##61: assume !false; [2021-11-07 10:29:32,323 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##60: assume false; [2021-11-07 10:29:32,323 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##69: assume !false; [2021-11-07 10:29:32,323 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##68: assume false; [2021-11-07 10:29:32,323 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2021-11-07 10:29:32,323 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2021-11-07 10:29:32,449 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:32,454 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:33,437 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##250: assume false; [2021-11-07 10:29:33,437 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##251: assume !false; [2021-11-07 10:29:33,437 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##241: assume !false; [2021-11-07 10:29:33,437 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##240: assume false; [2021-11-07 10:29:34,434 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:34,467 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !false; [2021-11-07 10:29:34,467 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume false; [2021-11-07 10:29:34,640 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !false; [2021-11-07 10:29:34,640 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume false;atomic_cmpxchg_~__ptr~0.base, atomic_cmpxchg_~__ptr~0.offset := atomic_cmpxchg_~v.base, atomic_cmpxchg_~v.offset; [2021-11-07 10:29:34,729 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##61: assume !false; [2021-11-07 10:29:34,729 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##60: assume false; [2021-11-07 10:29:34,729 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##48: assume !false; [2021-11-07 10:29:34,729 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume false; [2021-11-07 10:29:34,729 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##36: assume !false; [2021-11-07 10:29:34,729 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume false; [2021-11-07 10:29:34,730 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume !false; [2021-11-07 10:29:34,730 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume false; [2021-11-07 10:29:34,730 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !false; [2021-11-07 10:29:34,730 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume false; [2021-11-07 10:29:34,730 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-11-07 10:29:34,730 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##13: assume !false; [2021-11-07 10:29:34,730 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume false; [2021-11-07 10:29:34,730 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-11-07 10:29:34,853 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2021-11-07 10:29:34,853 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2021-11-07 10:29:35,974 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2021-11-07 10:29:35,975 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2021-11-07 10:29:36,634 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:36,937 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##80: assume !false; [2021-11-07 10:29:36,937 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##79: assume false; [2021-11-07 10:29:37,002 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2021-11-07 10:29:37,002 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false;atomic_cmpxchg_~__ptr~0.base, atomic_cmpxchg_~__ptr~0.offset := atomic_cmpxchg_~v.base, atomic_cmpxchg_~v.offset; [2021-11-07 10:29:37,424 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##126: assume !false; [2021-11-07 10:29:37,424 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##125: assume false;atomic_cmpxchg_~__ptr~0.base, atomic_cmpxchg_~__ptr~0.offset := atomic_cmpxchg_~v.base, atomic_cmpxchg_~v.offset; [2021-11-07 10:29:37,504 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:38,132 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume !false; [2021-11-07 10:29:38,132 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume false; [2021-11-07 10:29:38,132 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !false; [2021-11-07 10:29:38,132 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2021-11-07 10:29:38,132 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume false; [2021-11-07 10:29:38,132 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2021-11-07 10:29:38,157 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:38,158 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:38,161 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:38,163 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:38,167 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:38,172 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:38,174 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:38,176 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:38,180 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:38,182 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:38,184 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:38,189 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:38,192 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:38,193 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:38,198 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:38,201 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:38,202 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:38,206 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:38,209 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:38,219 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:38,224 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:51,489 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1299: assume false; [2021-11-07 10:29:51,490 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##297: assume !false; [2021-11-07 10:29:51,490 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##296: assume false; [2021-11-07 10:29:51,490 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##366: assume !false; [2021-11-07 10:29:51,490 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##365: assume false; [2021-11-07 10:29:51,490 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##405: assume false; [2021-11-07 10:29:51,491 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##406: assume !false; [2021-11-07 10:29:51,491 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1076: assume false; [2021-11-07 10:29:51,491 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1077: assume !false; [2021-11-07 10:29:51,491 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1036: assume false; [2021-11-07 10:29:51,491 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1037: assume !false; [2021-11-07 10:29:51,493 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2335: assume false; [2021-11-07 10:29:51,493 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2336: assume !false; [2021-11-07 10:29:51,494 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1780: assume !false; [2021-11-07 10:29:51,494 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1779: assume false; [2021-11-07 10:29:51,494 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1739: assume false; [2021-11-07 10:29:51,494 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1740: assume !false; [2021-11-07 10:29:51,494 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##74: assume !false; [2021-11-07 10:29:51,494 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##73: assume false; [2021-11-07 10:29:51,495 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##34: assume !false; [2021-11-07 10:29:51,495 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##33: assume false; [2021-11-07 10:29:51,495 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##629: assume !false; [2021-11-07 10:29:51,495 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##628: assume false; [2021-11-07 10:29:51,495 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1646: assume false; [2021-11-07 10:29:51,495 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1647: assume !false; [2021-11-07 10:29:51,496 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2113: assume !false; [2021-11-07 10:29:51,496 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2112: assume false; [2021-11-07 10:29:51,496 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2072: assume false; [2021-11-07 10:29:51,496 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2073: assume !false; [2021-11-07 10:29:51,496 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##742: assume false; [2021-11-07 10:29:51,496 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##743: assume !false; [2021-11-07 10:29:51,496 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2003: assume !false; [2021-11-07 10:29:51,497 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2002: assume false; [2021-11-07 10:29:51,497 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##702: assume false; [2021-11-07 10:29:51,497 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##703: assume !false; [2021-11-07 10:29:51,497 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1423: assume false; [2021-11-07 10:29:51,497 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1424: assume !false; [2021-11-07 10:29:51,498 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##966: assume !false; [2021-11-07 10:29:51,498 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##965: assume false; [2021-11-07 10:29:51,498 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1300: assume !false; [2021-11-07 10:29:51,498 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1383: assume false; [2021-11-07 10:29:51,498 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1384: assume !false; [2021-11-07 10:29:55,068 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint put_unaligned_le16_returnLabel#2: havoc hcd_alloc_coherent_#t~mem2195.base, hcd_alloc_coherent_#t~mem2195.offset; [2021-11-07 10:29:55,068 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##289: assume !false; [2021-11-07 10:29:55,068 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##288: assume false;call hcd_alloc_coherent_#t~mem2194.base, hcd_alloc_coherent_#t~mem2194.offset := read~$Pointer$(hcd_alloc_coherent_~vaddr_handle.base, hcd_alloc_coherent_~vaddr_handle.offset, 8);call write~int(hcd_alloc_coherent_#t~mem2194.base + hcd_alloc_coherent_#t~mem2194.offset, hcd_alloc_coherent_~__gu_p~0.base, hcd_alloc_coherent_~__gu_p~0.offset, 1);havoc hcd_alloc_coherent_#t~mem2194.base, hcd_alloc_coherent_#t~mem2194.offset; [2021-11-07 10:29:55,068 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint put_unaligned_le16_returnLabel: havoc hcd_alloc_coherent_#t~mem2195.base, hcd_alloc_coherent_#t~mem2195.offset; [2021-11-07 10:29:55,068 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint put_unaligned_le32_returnLabel: havoc hcd_alloc_coherent_#t~mem2196.base, hcd_alloc_coherent_#t~mem2196.offset; [2021-11-07 10:29:55,068 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint put_unaligned_le32_returnLabel#2: havoc hcd_alloc_coherent_#t~mem2196.base, hcd_alloc_coherent_#t~mem2196.offset; [2021-11-07 10:29:55,068 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##108: assume false;call hcd_alloc_coherent_#t~mem2194.base, hcd_alloc_coherent_#t~mem2194.offset := read~$Pointer$(hcd_alloc_coherent_~vaddr_handle.base, hcd_alloc_coherent_~vaddr_handle.offset, 8);call write~int(hcd_alloc_coherent_#t~mem2194.base + hcd_alloc_coherent_#t~mem2194.offset, hcd_alloc_coherent_~__gu_p~0.base, hcd_alloc_coherent_~__gu_p~0.offset, 1);havoc hcd_alloc_coherent_#t~mem2194.base, hcd_alloc_coherent_#t~mem2194.offset; [2021-11-07 10:29:55,068 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##109: assume !false; [2021-11-07 10:29:57,826 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:57,839 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2021-11-07 10:29:57,839 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2021-11-07 10:29:57,997 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:58,080 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2021-11-07 10:29:58,080 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2021-11-07 10:29:59,398 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##59: assume !false; [2021-11-07 10:29:59,399 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##58: assume false; [2021-11-07 10:29:59,399 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##129: assume false; [2021-11-07 10:29:59,399 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##130: assume !false; [2021-11-07 10:29:59,399 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##109: assume false; [2021-11-07 10:29:59,399 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##110: assume !false; [2021-11-07 10:29:59,399 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##118: assume !false; [2021-11-07 10:29:59,399 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##117: assume false; [2021-11-07 10:29:59,400 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##125: assume !false; [2021-11-07 10:29:59,400 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##124: assume false; [2021-11-07 10:29:59,410 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:59,462 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2021-11-07 10:29:59,463 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2021-11-07 10:29:59,883 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:59,884 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:29:59,885 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:30:02,159 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##79: assume !false; [2021-11-07 10:30:02,159 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##78: assume false; [2021-11-07 10:30:02,159 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##40: assume !false; [2021-11-07 10:30:02,159 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume false; [2021-11-07 10:30:02,159 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !false; [2021-11-07 10:30:02,159 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume false; [2021-11-07 10:30:02,261 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:35:59,500 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-11-07 10:35:59,500 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-11-07 10:35:59,572 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 10:35:59,573 INFO L299 CfgBuilder]: Removed 6660 assume(true) statements. [2021-11-07 10:35:59,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:35:59 BoogieIcfgContainer [2021-11-07 10:35:59,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 10:35:59,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 10:35:59,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 10:35:59,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 10:35:59,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 10:29:12" (1/3) ... [2021-11-07 10:35:59,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bea6777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:35:59, skipping insertion in model container [2021-11-07 10:35:59,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:29:25" (2/3) ... [2021-11-07 10:35:59,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bea6777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:35:59, skipping insertion in model container [2021-11-07 10:35:59,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:35:59" (3/3) ... [2021-11-07 10:35:59,586 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-usb-core-usbcore.ko.cil.out.i [2021-11-07 10:35:59,589 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 10:35:59,589 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-07 10:35:59,640 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 10:35:59,644 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 10:35:59,644 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-07 10:35:59,743 INFO L276 IsEmpty]: Start isEmpty. Operand has 8859 states, 8392 states have (on average 1.4411344137273594) internal successors, (12094), 8457 states have internal predecessors, (12094), 333 states have call successors, (333), 130 states have call predecessors, (333), 130 states have return successors, (333), 319 states have call predecessors, (333), 333 states have call successors, (333) [2021-11-07 10:35:59,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-07 10:35:59,748 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:35:59,749 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:35:59,749 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [usb_openErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_openErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 10:35:59,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:35:59,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1806543426, now seen corresponding path program 1 times [2021-11-07 10:35:59,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:35:59,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211795434] [2021-11-07 10:35:59,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:35:59,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:36:00,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:36:01,473 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 10:36:01,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:36:01,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211795434] [2021-11-07 10:36:01,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211795434] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:36:01,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:36:01,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 10:36:01,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042622877] [2021-11-07 10:36:01,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:36:01,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 10:36:01,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:36:01,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 10:36:01,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:36:01,527 INFO L87 Difference]: Start difference. First operand has 8859 states, 8392 states have (on average 1.4411344137273594) internal successors, (12094), 8457 states have internal predecessors, (12094), 333 states have call successors, (333), 130 states have call predecessors, (333), 130 states have return successors, (333), 319 states have call predecessors, (333), 333 states have call successors, (333) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 10:36:02,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:36:02,406 INFO L93 Difference]: Finished difference Result 26523 states and 39136 transitions. [2021-11-07 10:36:02,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 10:36:02,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-11-07 10:36:02,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:36:02,574 INFO L225 Difference]: With dead ends: 26523 [2021-11-07 10:36:02,574 INFO L226 Difference]: Without dead ends: 17607 [2021-11-07 10:36:02,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.96ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:36:02,717 INFO L933 BasicCegarLoop]: 12927 mSDtfsCounter, 12583 mSDsluCounter, 12884 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12583 SdHoareTripleChecker+Valid, 25811 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 72.06ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.42ms IncrementalHoareTripleChecker+Time [2021-11-07 10:36:02,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12583 Valid, 25811 Invalid, 17 Unknown, 0 Unchecked, 72.06ms Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 38.42ms Time] [2021-11-07 10:36:02,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17607 states. [2021-11-07 10:36:03,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17607 to 17603. [2021-11-07 10:36:03,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17603 states, 16674 states have (on average 1.4232937507496701) internal successors, (23732), 16800 states have internal predecessors, (23732), 666 states have call successors, (666), 260 states have call predecessors, (666), 260 states have return successors, (969), 638 states have call predecessors, (969), 666 states have call successors, (969) [2021-11-07 10:36:03,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17603 states to 17603 states and 25367 transitions. [2021-11-07 10:36:03,446 INFO L78 Accepts]: Start accepts. Automaton has 17603 states and 25367 transitions. Word has length 7 [2021-11-07 10:36:03,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:36:03,446 INFO L470 AbstractCegarLoop]: Abstraction has 17603 states and 25367 transitions. [2021-11-07 10:36:03,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 10:36:03,447 INFO L276 IsEmpty]: Start isEmpty. Operand 17603 states and 25367 transitions. [2021-11-07 10:36:03,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-07 10:36:03,449 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:36:03,450 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] [2021-11-07 10:36:03,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 10:36:03,451 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting usb_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [usb_openErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_openErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 10:36:03,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:36:03,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1524069614, now seen corresponding path program 1 times [2021-11-07 10:36:03,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:36:03,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606702805] [2021-11-07 10:36:03,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:36:03,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:36:04,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:36:04,856 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 10:36:04,856 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:36:04,857 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606702805] [2021-11-07 10:36:04,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606702805] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:36:04,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:36:04,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 10:36:04,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608111399] [2021-11-07 10:36:04,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:36:04,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 10:36:04,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:36:04,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 10:36:04,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:36:04,861 INFO L87 Difference]: Start difference. First operand 17603 states and 25367 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:36:05,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:36:05,484 INFO L93 Difference]: Finished difference Result 35212 states and 51651 transitions. [2021-11-07 10:36:05,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 10:36:05,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-07 10:36:05,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:36:05,628 INFO L225 Difference]: With dead ends: 35212 [2021-11-07 10:36:05,628 INFO L226 Difference]: Without dead ends: 17611 [2021-11-07 10:36:05,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.86ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:36:05,751 INFO L933 BasicCegarLoop]: 12540 mSDtfsCounter, 49 mSDsluCounter, 12488 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 25028 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.94ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.03ms IncrementalHoareTripleChecker+Time [2021-11-07 10:36:05,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 25028 Invalid, 5 Unknown, 0 Unchecked, 32.94ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 19.03ms Time] [2021-11-07 10:36:05,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17611 states. [2021-11-07 10:36:06,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17611 to 17607. [2021-11-07 10:36:06,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17607 states, 16677 states have (on average 1.423097679438748) internal successors, (23733), 16804 states have internal predecessors, (23733), 666 states have call successors, (666), 260 states have call predecessors, (666), 261 states have return successors, (971), 638 states have call predecessors, (971), 666 states have call successors, (971) [2021-11-07 10:36:06,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17607 states to 17607 states and 25370 transitions. [2021-11-07 10:36:06,381 INFO L78 Accepts]: Start accepts. Automaton has 17607 states and 25370 transitions. Word has length 20 [2021-11-07 10:36:06,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:36:06,382 INFO L470 AbstractCegarLoop]: Abstraction has 17607 states and 25370 transitions. [2021-11-07 10:36:06,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:36:06,382 INFO L276 IsEmpty]: Start isEmpty. Operand 17607 states and 25370 transitions. [2021-11-07 10:36:06,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 10:36:06,384 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:36:06,384 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] [2021-11-07 10:36:06,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 10:36:06,384 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting usb_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [usb_openErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_openErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 10:36:06,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:36:06,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1290030149, now seen corresponding path program 1 times [2021-11-07 10:36:06,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:36:06,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255559141] [2021-11-07 10:36:06,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:36:06,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:36:07,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:36:07,896 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 10:36:07,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:36:07,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255559141] [2021-11-07 10:36:07,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255559141] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:36:07,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:36:07,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 10:36:07,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56001820] [2021-11-07 10:36:07,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:36:07,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 10:36:07,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:36:07,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 10:36:07,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:36:07,898 INFO L87 Difference]: Start difference. First operand 17607 states and 25370 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:36:08,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:36:08,430 INFO L93 Difference]: Finished difference Result 35290 states and 51763 transitions. [2021-11-07 10:36:08,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 10:36:08,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-07 10:36:08,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:36:08,526 INFO L225 Difference]: With dead ends: 35290 [2021-11-07 10:36:08,526 INFO L226 Difference]: Without dead ends: 17685 [2021-11-07 10:36:08,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 35.79ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 10:36:08,617 INFO L933 BasicCegarLoop]: 12549 mSDtfsCounter, 167 mSDsluCounter, 37664 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 50213 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.24ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.79ms IncrementalHoareTripleChecker+Time [2021-11-07 10:36:08,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 50213 Invalid, 34 Unknown, 0 Unchecked, 35.24ms Time], IncrementalHoareTripleChecker [11 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 53.79ms Time] [2021-11-07 10:36:08,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17685 states. [2021-11-07 10:36:09,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17685 to 17610. [2021-11-07 10:36:09,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17610 states, 16680 states have (on average 1.4229616306954436) internal successors, (23735), 16807 states have internal predecessors, (23735), 666 states have call successors, (666), 260 states have call predecessors, (666), 261 states have return successors, (971), 638 states have call predecessors, (971), 666 states have call successors, (971) [2021-11-07 10:36:09,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17610 states to 17610 states and 25372 transitions. [2021-11-07 10:36:09,169 INFO L78 Accepts]: Start accepts. Automaton has 17610 states and 25372 transitions. Word has length 24 [2021-11-07 10:36:09,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:36:09,170 INFO L470 AbstractCegarLoop]: Abstraction has 17610 states and 25372 transitions. [2021-11-07 10:36:09,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:36:09,171 INFO L276 IsEmpty]: Start isEmpty. Operand 17610 states and 25372 transitions. [2021-11-07 10:36:09,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 10:36:09,174 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:36:09,174 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] [2021-11-07 10:36:09,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 10:36:09,175 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting usb_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [usb_openErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_openErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 10:36:09,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:36:09,176 INFO L85 PathProgramCache]: Analyzing trace with hash 480683523, now seen corresponding path program 1 times [2021-11-07 10:36:09,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:36:09,177 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705386592] [2021-11-07 10:36:09,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:36:09,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:36:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:36:12,991 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 10:36:12,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:36:12,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705386592] [2021-11-07 10:36:12,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705386592] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:36:12,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:36:12,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 10:36:12,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858388433] [2021-11-07 10:36:12,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:36:12,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 10:36:12,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:36:12,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 10:36:12,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:36:12,994 INFO L87 Difference]: Start difference. First operand 17610 states and 25372 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:36:13,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:36:13,286 INFO L93 Difference]: Finished difference Result 26452 states and 38261 transitions. [2021-11-07 10:36:13,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 10:36:13,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-07 10:36:13,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:36:13,332 INFO L225 Difference]: With dead ends: 26452 [2021-11-07 10:36:13,332 INFO L226 Difference]: Without dead ends: 8844 [2021-11-07 10:36:13,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.03ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:36:13,402 INFO L933 BasicCegarLoop]: 12536 mSDtfsCounter, 15 mSDsluCounter, 12520 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 25056 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.40ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.23ms IncrementalHoareTripleChecker+Time [2021-11-07 10:36:13,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 25056 Invalid, 6 Unknown, 0 Unchecked, 16.40ms Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 20.23ms Time] [2021-11-07 10:36:13,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8844 states. [2021-11-07 10:36:13,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8844 to 8840. [2021-11-07 10:36:13,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8840 states, 8371 states have (on average 1.4224107036196392) internal successors, (11907), 8436 states have internal predecessors, (11907), 334 states have call successors, (334), 131 states have call predecessors, (334), 132 states have return successors, (337), 320 states have call predecessors, (337), 334 states have call successors, (337) [2021-11-07 10:36:13,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8840 states to 8840 states and 12578 transitions. [2021-11-07 10:36:13,618 INFO L78 Accepts]: Start accepts. Automaton has 8840 states and 12578 transitions. Word has length 24 [2021-11-07 10:36:13,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:36:13,619 INFO L470 AbstractCegarLoop]: Abstraction has 8840 states and 12578 transitions. [2021-11-07 10:36:13,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:36:13,619 INFO L276 IsEmpty]: Start isEmpty. Operand 8840 states and 12578 transitions. [2021-11-07 10:36:13,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-07 10:36:13,620 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:36:13,620 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] [2021-11-07 10:36:13,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 10:36:13,621 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting usb_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [usb_openErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_openErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 10:36:13,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:36:13,621 INFO L85 PathProgramCache]: Analyzing trace with hash -723551233, now seen corresponding path program 1 times [2021-11-07 10:36:13,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:36:13,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483008249] [2021-11-07 10:36:13,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:36:13,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:36:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:36:14,722 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 10:36:14,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:36:14,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483008249] [2021-11-07 10:36:14,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483008249] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:36:14,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:36:14,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 10:36:14,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891728432] [2021-11-07 10:36:14,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:36:14,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 10:36:14,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:36:14,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 10:36:14,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:36:14,725 INFO L87 Difference]: Start difference. First operand 8840 states and 12578 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:36:17,153 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:36:19,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:36:19,950 INFO L93 Difference]: Finished difference Result 17651 states and 25424 transitions. [2021-11-07 10:36:19,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 10:36:19,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-07 10:36:19,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:36:20,015 INFO L225 Difference]: With dead ends: 17651 [2021-11-07 10:36:20,015 INFO L226 Difference]: Without dead ends: 17647 [2021-11-07 10:36:20,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.31ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:36:20,021 INFO L933 BasicCegarLoop]: 12894 mSDtfsCounter, 12537 mSDsluCounter, 25022 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4298.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12537 SdHoareTripleChecker+Valid, 37916 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 60.75ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4620.44ms IncrementalHoareTripleChecker+Time [2021-11-07 10:36:20,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12537 Valid, 37916 Invalid, 700 Unknown, 0 Unchecked, 60.75ms Time], IncrementalHoareTripleChecker [5 Valid, 694 Invalid, 1 Unknown, 0 Unchecked, 4620.44ms Time] [2021-11-07 10:36:20,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17647 states. [2021-11-07 10:36:20,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17647 to 17644. [2021-11-07 10:36:20,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17644 states, 16711 states have (on average 1.4227155765663335) internal successors, (23775), 16839 states have internal predecessors, (23775), 667 states have call successors, (667), 261 states have call predecessors, (667), 263 states have return successors, (976), 639 states have call predecessors, (976), 667 states have call successors, (976) [2021-11-07 10:36:20,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17644 states to 17644 states and 25418 transitions. [2021-11-07 10:36:20,372 INFO L78 Accepts]: Start accepts. Automaton has 17644 states and 25418 transitions. Word has length 26 [2021-11-07 10:36:20,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:36:20,372 INFO L470 AbstractCegarLoop]: Abstraction has 17644 states and 25418 transitions. [2021-11-07 10:36:20,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:36:20,373 INFO L276 IsEmpty]: Start isEmpty. Operand 17644 states and 25418 transitions. [2021-11-07 10:36:20,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-07 10:36:20,376 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:36:20,376 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] [2021-11-07 10:36:20,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 10:36:20,376 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [usb_openErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_openErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 10:36:20,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:36:20,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1251868075, now seen corresponding path program 1 times [2021-11-07 10:36:20,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:36:20,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215111668] [2021-11-07 10:36:20,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:36:20,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:36:22,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:36:23,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-07 10:36:23,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:36:23,455 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 10:36:23,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:36:23,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215111668] [2021-11-07 10:36:23,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215111668] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:36:23,456 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:36:23,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 10:36:23,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795889805] [2021-11-07 10:36:23,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:36:23,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 10:36:23,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:36:23,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 10:36:23,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:36:23,457 INFO L87 Difference]: Start difference. First operand 17644 states and 25418 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 10:36:25,831 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:36:29,963 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:36:43,385 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:36:45,402 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:36:47,425 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:36:53,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:36:53,127 INFO L93 Difference]: Finished difference Result 42037 states and 62023 transitions. [2021-11-07 10:36:53,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 10:36:53,128 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2021-11-07 10:36:53,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:36:53,256 INFO L225 Difference]: With dead ends: 42037 [2021-11-07 10:36:53,256 INFO L226 Difference]: Without dead ends: 24420 [2021-11-07 10:36:53,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 137.19ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:36:53,336 INFO L933 BasicCegarLoop]: 11350 mSDtfsCounter, 5652 mSDsluCounter, 30391 mSDsCounter, 0 mSdLazyCounter, 8054 mSolverCounterSat, 480 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26042.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5652 SdHoareTripleChecker+Valid, 41741 SdHoareTripleChecker+Invalid, 8538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 206.11ms SdHoareTripleChecker+Time, 480 IncrementalHoareTripleChecker+Valid, 8054 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28239.87ms IncrementalHoareTripleChecker+Time [2021-11-07 10:36:53,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5652 Valid, 41741 Invalid, 8538 Unknown, 0 Unchecked, 206.11ms Time], IncrementalHoareTripleChecker [480 Valid, 8054 Invalid, 4 Unknown, 0 Unchecked, 28239.87ms Time] [2021-11-07 10:36:53,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24420 states. [2021-11-07 10:36:53,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24420 to 20373. [2021-11-07 10:36:53,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20373 states, 19346 states have (on average 1.4238602295048073) internal successors, (27546), 19515 states have internal predecessors, (27546), 693 states have call successors, (693), 261 states have call predecessors, (693), 331 states have return successors, (1235), 694 states have call predecessors, (1235), 693 states have call successors, (1235) [2021-11-07 10:36:54,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20373 states to 20373 states and 29474 transitions. [2021-11-07 10:36:54,078 INFO L78 Accepts]: Start accepts. Automaton has 20373 states and 29474 transitions. Word has length 28 [2021-11-07 10:36:54,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:36:54,079 INFO L470 AbstractCegarLoop]: Abstraction has 20373 states and 29474 transitions. [2021-11-07 10:36:54,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 10:36:54,079 INFO L276 IsEmpty]: Start isEmpty. Operand 20373 states and 29474 transitions. [2021-11-07 10:36:54,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-07 10:36:54,080 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:36:54,080 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] [2021-11-07 10:36:54,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 10:36:54,080 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [usb_openErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_openErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 10:36:54,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:36:54,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1644895085, now seen corresponding path program 1 times [2021-11-07 10:36:54,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:36:54,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119797976] [2021-11-07 10:36:54,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:36:54,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:36:54,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:36:55,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-07 10:36:55,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:36:55,310 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 10:36:55,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:36:55,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119797976] [2021-11-07 10:36:55,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119797976] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:36:55,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:36:55,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 10:36:55,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317326427] [2021-11-07 10:36:55,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:36:55,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 10:36:55,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:36:55,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 10:36:55,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:36:55,313 INFO L87 Difference]: Start difference. First operand 20373 states and 29474 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 10:36:57,729 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:37:16,474 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:37:17,632 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:37:19,652 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:37:21,669 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:37:26,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:37:26,358 INFO L93 Difference]: Finished difference Result 44769 states and 66089 transitions. [2021-11-07 10:37:26,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 10:37:26,359 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2021-11-07 10:37:26,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:37:26,456 INFO L225 Difference]: With dead ends: 44769 [2021-11-07 10:37:26,456 INFO L226 Difference]: Without dead ends: 24423 [2021-11-07 10:37:26,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 96.65ms TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-07 10:37:26,542 INFO L933 BasicCegarLoop]: 11340 mSDtfsCounter, 5685 mSDsluCounter, 41682 mSDsCounter, 0 mSdLazyCounter, 9601 mSolverCounterSat, 484 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26934.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5685 SdHoareTripleChecker+Valid, 53022 SdHoareTripleChecker+Invalid, 10088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 205.67ms SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 9601 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29427.59ms IncrementalHoareTripleChecker+Time [2021-11-07 10:37:26,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5685 Valid, 53022 Invalid, 10088 Unknown, 0 Unchecked, 205.67ms Time], IncrementalHoareTripleChecker [484 Valid, 9601 Invalid, 3 Unknown, 0 Unchecked, 29427.59ms Time] [2021-11-07 10:37:26,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24423 states. [2021-11-07 10:37:27,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24423 to 20367. [2021-11-07 10:37:27,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20367 states, 19341 states have (on average 1.423866397807766) internal successors, (27539), 19509 states have internal predecessors, (27539), 693 states have call successors, (693), 261 states have call predecessors, (693), 330 states have return successors, (1233), 694 states have call predecessors, (1233), 693 states have call successors, (1233) [2021-11-07 10:37:27,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20367 states to 20367 states and 29465 transitions. [2021-11-07 10:37:27,347 INFO L78 Accepts]: Start accepts. Automaton has 20367 states and 29465 transitions. Word has length 28 [2021-11-07 10:37:27,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:37:27,348 INFO L470 AbstractCegarLoop]: Abstraction has 20367 states and 29465 transitions. [2021-11-07 10:37:27,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 10:37:27,349 INFO L276 IsEmpty]: Start isEmpty. Operand 20367 states and 29465 transitions. [2021-11-07 10:37:27,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 10:37:27,351 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:37:27,352 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:37:27,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 10:37:27,352 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [usb_openErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_openErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 10:37:27,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:37:27,352 INFO L85 PathProgramCache]: Analyzing trace with hash -494525453, now seen corresponding path program 1 times [2021-11-07 10:37:27,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:37:27,353 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773633780] [2021-11-07 10:37:27,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:37:27,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:37:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:37:28,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-07 10:37:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:37:28,487 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 10:37:28,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:37:28,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773633780] [2021-11-07 10:37:28,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773633780] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:37:28,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:37:28,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 10:37:28,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214553300] [2021-11-07 10:37:28,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:37:28,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 10:37:28,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:37:28,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 10:37:28,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:37:28,489 INFO L87 Difference]: Start difference. First operand 20367 states and 29465 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 10:37:30,836 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:37:47,464 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:37:51,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:37:51,660 INFO L93 Difference]: Finished difference Result 44784 states and 66109 transitions. [2021-11-07 10:37:51,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 10:37:51,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-11-07 10:37:51,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:37:51,773 INFO L225 Difference]: With dead ends: 44784 [2021-11-07 10:37:51,773 INFO L226 Difference]: Without dead ends: 24444 [2021-11-07 10:37:51,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 82.16ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:37:51,859 INFO L933 BasicCegarLoop]: 11345 mSDtfsCounter, 5608 mSDsluCounter, 19108 mSDsCounter, 0 mSdLazyCounter, 6511 mSolverCounterSat, 476 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19385.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5610 SdHoareTripleChecker+Valid, 30453 SdHoareTripleChecker+Invalid, 6989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 155.12ms SdHoareTripleChecker+Time, 476 IncrementalHoareTripleChecker+Valid, 6511 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21537.96ms IncrementalHoareTripleChecker+Time [2021-11-07 10:37:51,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5610 Valid, 30453 Invalid, 6989 Unknown, 0 Unchecked, 155.12ms Time], IncrementalHoareTripleChecker [476 Valid, 6511 Invalid, 2 Unknown, 0 Unchecked, 21537.96ms Time] [2021-11-07 10:37:51,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24444 states. [2021-11-07 10:37:52,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24444 to 20369. [2021-11-07 10:37:52,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20369 states, 19343 states have (on average 1.4238225714728843) internal successors, (27541), 19511 states have internal predecessors, (27541), 693 states have call successors, (693), 261 states have call predecessors, (693), 330 states have return successors, (1233), 694 states have call predecessors, (1233), 693 states have call successors, (1233) [2021-11-07 10:37:52,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20369 states to 20369 states and 29467 transitions. [2021-11-07 10:37:52,527 INFO L78 Accepts]: Start accepts. Automaton has 20369 states and 29467 transitions. Word has length 31 [2021-11-07 10:37:52,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:37:52,527 INFO L470 AbstractCegarLoop]: Abstraction has 20369 states and 29467 transitions. [2021-11-07 10:37:52,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 10:37:52,527 INFO L276 IsEmpty]: Start isEmpty. Operand 20369 states and 29467 transitions. [2021-11-07 10:37:52,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 10:37:52,528 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:37:52,528 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:37:52,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 10:37:52,528 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting usb_openErr1ASSERT_VIOLATIONERROR_FUNCTION === [usb_openErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_openErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 10:37:52,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:37:52,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1010123966, now seen corresponding path program 1 times [2021-11-07 10:37:52,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:37:52,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046050803] [2021-11-07 10:37:52,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:37:52,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:37:53,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:37:53,721 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 10:37:53,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:37:53,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046050803] [2021-11-07 10:37:53,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046050803] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:37:53,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:37:53,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 10:37:53,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526725950] [2021-11-07 10:37:53,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:37:53,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 10:37:53,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:37:53,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 10:37:53,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:37:53,723 INFO L87 Difference]: Start difference. First operand 20369 states and 29467 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:37:54,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:37:54,440 INFO L93 Difference]: Finished difference Result 40721 states and 59854 transitions. [2021-11-07 10:37:54,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 10:37:54,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-07 10:37:54,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:37:54,525 INFO L225 Difference]: With dead ends: 40721 [2021-11-07 10:37:54,526 INFO L226 Difference]: Without dead ends: 20379 [2021-11-07 10:37:54,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.93ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:37:54,607 INFO L933 BasicCegarLoop]: 12541 mSDtfsCounter, 4 mSDsluCounter, 12532 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 25073 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.88ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.88ms IncrementalHoareTripleChecker+Time [2021-11-07 10:37:54,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 25073 Invalid, 7 Unknown, 0 Unchecked, 15.88ms Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 31.88ms Time] [2021-11-07 10:37:54,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20379 states. [2021-11-07 10:37:55,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20379 to 20371. [2021-11-07 10:37:55,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20371 states, 19345 states have (on average 1.4237787542000517) internal successors, (27543), 19513 states have internal predecessors, (27543), 693 states have call successors, (693), 261 states have call predecessors, (693), 330 states have return successors, (1233), 694 states have call predecessors, (1233), 693 states have call successors, (1233) [2021-11-07 10:37:55,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20371 states to 20371 states and 29469 transitions. [2021-11-07 10:37:55,205 INFO L78 Accepts]: Start accepts. Automaton has 20371 states and 29469 transitions. Word has length 32 [2021-11-07 10:37:55,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:37:55,205 INFO L470 AbstractCegarLoop]: Abstraction has 20371 states and 29469 transitions. [2021-11-07 10:37:55,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:37:55,205 INFO L276 IsEmpty]: Start isEmpty. Operand 20371 states and 29469 transitions. [2021-11-07 10:37:55,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 10:37:55,206 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:37:55,206 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] [2021-11-07 10:37:55,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 10:37:55,206 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [usb_openErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_openErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 10:37:55,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:37:55,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1291449775, now seen corresponding path program 1 times [2021-11-07 10:37:55,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:37:55,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355472142] [2021-11-07 10:37:55,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:37:55,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:37:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:37:57,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-07 10:37:57,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:37:58,016 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 10:37:58,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:37:58,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355472142] [2021-11-07 10:37:58,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355472142] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:37:58,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:37:58,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 10:37:58,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110191049] [2021-11-07 10:37:58,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:37:58,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 10:37:58,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:37:58,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 10:37:58,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:37:58,017 INFO L87 Difference]: Start difference. First operand 20371 states and 29469 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 10:38:00,400 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:38:02,459 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:38:07,516 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:38:32,390 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:38:34,405 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:38:36,426 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:38:43,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:38:43,723 INFO L93 Difference]: Finished difference Result 44794 states and 66119 transitions. [2021-11-07 10:38:43,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 10:38:43,725 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2021-11-07 10:38:43,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:38:43,821 INFO L225 Difference]: With dead ends: 44794 [2021-11-07 10:38:43,821 INFO L226 Difference]: Without dead ends: 24450 [2021-11-07 10:38:43,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 80.70ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:38:43,907 INFO L933 BasicCegarLoop]: 11374 mSDtfsCounter, 5597 mSDsluCounter, 29146 mSDsCounter, 0 mSdLazyCounter, 9447 mSolverCounterSat, 478 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39713.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5597 SdHoareTripleChecker+Valid, 40520 SdHoareTripleChecker+Invalid, 9931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 227.38ms SdHoareTripleChecker+Time, 478 IncrementalHoareTripleChecker+Valid, 9447 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43860.81ms IncrementalHoareTripleChecker+Time [2021-11-07 10:38:43,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5597 Valid, 40520 Invalid, 9931 Unknown, 0 Unchecked, 227.38ms Time], IncrementalHoareTripleChecker [478 Valid, 9447 Invalid, 6 Unknown, 0 Unchecked, 43860.81ms Time] [2021-11-07 10:38:43,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24450 states. [2021-11-07 10:38:44,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24450 to 20384. [2021-11-07 10:38:44,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20384 states, 19357 states have (on average 1.4236193625045204) internal successors, (27557), 19523 states have internal predecessors, (27557), 693 states have call successors, (693), 261 states have call predecessors, (693), 331 states have return successors, (1241), 697 states have call predecessors, (1241), 693 states have call successors, (1241) [2021-11-07 10:38:44,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20384 states to 20384 states and 29491 transitions. [2021-11-07 10:38:44,577 INFO L78 Accepts]: Start accepts. Automaton has 20384 states and 29491 transitions. Word has length 33 [2021-11-07 10:38:44,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:38:44,577 INFO L470 AbstractCegarLoop]: Abstraction has 20384 states and 29491 transitions. [2021-11-07 10:38:44,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 10:38:44,577 INFO L276 IsEmpty]: Start isEmpty. Operand 20384 states and 29491 transitions. [2021-11-07 10:38:44,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-07 10:38:44,579 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:38:44,579 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] [2021-11-07 10:38:44,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 10:38:44,579 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [usb_openErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_openErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 10:38:44,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:38:44,580 INFO L85 PathProgramCache]: Analyzing trace with hash -369587715, now seen corresponding path program 1 times [2021-11-07 10:38:44,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:38:44,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177744190] [2021-11-07 10:38:44,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:38:44,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:38:47,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:38:47,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-07 10:38:48,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:38:48,698 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 10:38:48,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:38:48,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177744190] [2021-11-07 10:38:48,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177744190] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:38:48,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:38:48,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-07 10:38:48,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937996580] [2021-11-07 10:38:48,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:38:48,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 10:38:48,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:38:48,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 10:38:48,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-07 10:38:48,699 INFO L87 Difference]: Start difference. First operand 20384 states and 29491 transitions. Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 10:38:51,081 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:38:53,126 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:38:55,199 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:38:57,291 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:38:59,410 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:39:10,610 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:39:12,645 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:39:19,403 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:39:21,465 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:39:35,849 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:40:16,467 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:40:38,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:40:38,567 INFO L93 Difference]: Finished difference Result 44872 states and 66224 transitions. [2021-11-07 10:40:38,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 10:40:38,568 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2021-11-07 10:40:38,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:40:38,689 INFO L225 Difference]: With dead ends: 44872 [2021-11-07 10:40:38,689 INFO L226 Difference]: Without dead ends: 24515 [2021-11-07 10:40:38,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 754.56ms TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2021-11-07 10:40:38,794 INFO L933 BasicCegarLoop]: 11364 mSDtfsCounter, 5740 mSDsluCounter, 68966 mSDsCounter, 0 mSdLazyCounter, 21200 mSolverCounterSat, 500 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 92762.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5740 SdHoareTripleChecker+Valid, 80330 SdHoareTripleChecker+Invalid, 21709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 440.46ms SdHoareTripleChecker+Time, 500 IncrementalHoareTripleChecker+Valid, 21200 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 107010.74ms IncrementalHoareTripleChecker+Time [2021-11-07 10:40:38,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5740 Valid, 80330 Invalid, 21709 Unknown, 0 Unchecked, 440.46ms Time], IncrementalHoareTripleChecker [500 Valid, 21200 Invalid, 9 Unknown, 0 Unchecked, 107010.74ms Time] [2021-11-07 10:40:38,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24515 states. [2021-11-07 10:40:39,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24515 to 20393. [2021-11-07 10:40:39,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20393 states, 19365 states have (on average 1.4235476374903175) internal successors, (27567), 19532 states have internal predecessors, (27567), 693 states have call successors, (693), 261 states have call predecessors, (693), 332 states have return successors, (1243), 697 states have call predecessors, (1243), 693 states have call successors, (1243) [2021-11-07 10:40:39,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20393 states to 20393 states and 29503 transitions. [2021-11-07 10:40:39,657 INFO L78 Accepts]: Start accepts. Automaton has 20393 states and 29503 transitions. Word has length 35 [2021-11-07 10:40:39,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:40:39,657 INFO L470 AbstractCegarLoop]: Abstraction has 20393 states and 29503 transitions. [2021-11-07 10:40:39,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 10:40:39,658 INFO L276 IsEmpty]: Start isEmpty. Operand 20393 states and 29503 transitions. [2021-11-07 10:40:39,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-07 10:40:39,658 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:40:39,658 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] [2021-11-07 10:40:39,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 10:40:39,659 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting usb_openErr1ASSERT_VIOLATIONERROR_FUNCTION === [usb_openErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_openErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 10:40:39,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:40:39,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1807096047, now seen corresponding path program 1 times [2021-11-07 10:40:39,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:40:39,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809503461] [2021-11-07 10:40:39,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:40:39,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:40:40,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:40:40,685 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 10:40:40,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:40:40,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809503461] [2021-11-07 10:40:40,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809503461] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:40:40,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:40:40,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 10:40:40,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614775324] [2021-11-07 10:40:40,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:40:40,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 10:40:40,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:40:40,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 10:40:40,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:40:40,686 INFO L87 Difference]: Start difference. First operand 20393 states and 29503 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:40:41,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:40:41,612 INFO L93 Difference]: Finished difference Result 40815 states and 59988 transitions. [2021-11-07 10:40:41,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 10:40:41,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-11-07 10:40:41,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:40:41,708 INFO L225 Difference]: With dead ends: 40815 [2021-11-07 10:40:41,708 INFO L226 Difference]: Without dead ends: 20449 [2021-11-07 10:40:41,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 43.81ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:40:41,808 INFO L933 BasicCegarLoop]: 12549 mSDtfsCounter, 61 mSDsluCounter, 37623 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 50172 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.93ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.49ms IncrementalHoareTripleChecker+Time [2021-11-07 10:40:41,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 50172 Invalid, 28 Unknown, 0 Unchecked, 26.93ms Time], IncrementalHoareTripleChecker [5 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 67.49ms Time] [2021-11-07 10:40:41,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20449 states. [2021-11-07 10:40:42,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20449 to 20399. [2021-11-07 10:40:42,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20399 states, 19371 states have (on average 1.4234164472665325) internal successors, (27573), 19538 states have internal predecessors, (27573), 693 states have call successors, (693), 261 states have call predecessors, (693), 332 states have return successors, (1243), 697 states have call predecessors, (1243), 693 states have call successors, (1243) [2021-11-07 10:40:42,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20399 states to 20399 states and 29509 transitions. [2021-11-07 10:40:42,441 INFO L78 Accepts]: Start accepts. Automaton has 20399 states and 29509 transitions. Word has length 36 [2021-11-07 10:40:42,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:40:42,441 INFO L470 AbstractCegarLoop]: Abstraction has 20399 states and 29509 transitions. [2021-11-07 10:40:42,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:40:42,441 INFO L276 IsEmpty]: Start isEmpty. Operand 20399 states and 29509 transitions. [2021-11-07 10:40:42,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-07 10:40:42,442 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:40:42,442 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] [2021-11-07 10:40:42,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 10:40:42,442 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting usb_openErr1ASSERT_VIOLATIONERROR_FUNCTION === [usb_openErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_openErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 10:40:42,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:40:42,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1808943089, now seen corresponding path program 1 times [2021-11-07 10:40:42,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:40:42,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168755270] [2021-11-07 10:40:42,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:40:42,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:40:45,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:40:45,753 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 10:40:45,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:40:45,753 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168755270] [2021-11-07 10:40:45,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168755270] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:40:45,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:40:45,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 10:40:45,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389912654] [2021-11-07 10:40:45,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:40:45,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 10:40:45,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:40:45,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 10:40:45,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:40:45,754 INFO L87 Difference]: Start difference. First operand 20399 states and 29509 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:40:48,131 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:40:50,177 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:40:53,773 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:40:55,270 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:41:13,863 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:41:15,886 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:41:20,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:41:20,494 INFO L93 Difference]: Finished difference Result 32054 states and 46909 transitions. [2021-11-07 10:41:20,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 10:41:20,495 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-11-07 10:41:20,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:41:20,591 INFO L225 Difference]: With dead ends: 32054 [2021-11-07 10:41:20,592 INFO L226 Difference]: Without dead ends: 20501 [2021-11-07 10:41:20,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 574.94ms TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-11-07 10:41:20,667 INFO L933 BasicCegarLoop]: 12561 mSDtfsCounter, 60 mSDsluCounter, 33738 mSDsCounter, 0 mSdLazyCounter, 3939 mSolverCounterSat, 9 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28912.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 46299 SdHoareTripleChecker+Invalid, 3952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 96.61ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3939 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33160.35ms IncrementalHoareTripleChecker+Time [2021-11-07 10:41:20,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 46299 Invalid, 3952 Unknown, 0 Unchecked, 96.61ms Time], IncrementalHoareTripleChecker [9 Valid, 3939 Invalid, 4 Unknown, 0 Unchecked, 33160.35ms Time] [2021-11-07 10:41:20,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20501 states. [2021-11-07 10:41:21,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20501 to 20409. [2021-11-07 10:41:21,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20409 states, 19381 states have (on average 1.4233011712501935) internal successors, (27585), 19548 states have internal predecessors, (27585), 693 states have call successors, (693), 261 states have call predecessors, (693), 332 states have return successors, (1243), 697 states have call predecessors, (1243), 693 states have call successors, (1243) [2021-11-07 10:41:21,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20409 states to 20409 states and 29521 transitions. [2021-11-07 10:41:21,586 INFO L78 Accepts]: Start accepts. Automaton has 20409 states and 29521 transitions. Word has length 36 [2021-11-07 10:41:21,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:41:21,586 INFO L470 AbstractCegarLoop]: Abstraction has 20409 states and 29521 transitions. [2021-11-07 10:41:21,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:41:21,587 INFO L276 IsEmpty]: Start isEmpty. Operand 20409 states and 29521 transitions. [2021-11-07 10:41:21,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-07 10:41:21,587 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:41:21,588 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] [2021-11-07 10:41:21,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-07 10:41:21,588 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [usb_openErr0ASSERT_VIOLATIONERROR_FUNCTION, usb_openErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 10:41:21,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:41:21,588 INFO L85 PathProgramCache]: Analyzing trace with hash -987294200, now seen corresponding path program 1 times [2021-11-07 10:41:21,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:41:21,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468700632] [2021-11-07 10:41:21,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:41:21,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:41:23,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:41:23,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-07 10:41:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:41:23,719 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 10:41:23,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:41:23,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468700632] [2021-11-07 10:41:23,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468700632] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:41:23,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:41:23,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 10:41:23,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693489176] [2021-11-07 10:41:23,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:41:23,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 10:41:23,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:41:23,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 10:41:23,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-07 10:41:23,721 INFO L87 Difference]: Start difference. First operand 20409 states and 29521 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 10:41:26,172 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:41:28,211 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:42:03,275 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15