./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9cf309f0a6c825c7fb12404de1f7afda24a75842d16f1076eb678f0f1f17dedf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-23 00:34:30,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:34:30,641 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:34:30,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:34:30,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:34:30,684 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:34:30,685 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:34:30,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:34:30,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:34:30,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:34:30,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:34:30,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:34:30,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:34:30,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:34:30,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:34:30,701 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:34:30,705 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:34:30,706 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:34:30,707 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:34:30,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:34:30,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:34:30,711 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:34:30,712 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:34:30,713 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:34:30,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:34:30,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:34:30,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:34:30,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:34:30,718 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:34:30,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:34:30,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:34:30,719 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:34:30,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:34:30,721 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:34:30,722 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:34:30,722 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:34:30,722 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:34:30,723 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:34:30,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:34:30,723 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:34:30,724 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:34:30,725 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 00:34:30,745 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:34:30,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:34:30,750 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 00:34:30,750 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 00:34:30,751 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:34:30,751 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:34:30,751 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 00:34:30,751 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:34:30,752 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:34:30,752 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:34:30,752 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:34:30,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:34:30,753 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:34:30,753 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:34:30,753 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:34:30,753 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:34:30,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:34:30,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 00:34:30,754 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 00:34:30,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 00:34:30,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:34:30,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:34:30,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:34:30,754 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 00:34:30,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:34:30,755 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 00:34:30,755 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 00:34:30,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:34:30,756 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 00:34:30,756 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9cf309f0a6c825c7fb12404de1f7afda24a75842d16f1076eb678f0f1f17dedf [2021-11-23 00:34:30,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:34:30,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:34:30,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:34:30,972 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:34:30,973 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:34:30,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i [2021-11-23 00:34:31,020 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74bb9556d/6c26df721cc64eca9ba5c534a9e04a3d/FLAGff7b3c882 [2021-11-23 00:34:31,670 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:34:31,671 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i [2021-11-23 00:34:31,720 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74bb9556d/6c26df721cc64eca9ba5c534a9e04a3d/FLAGff7b3c882 [2021-11-23 00:34:32,047 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74bb9556d/6c26df721cc64eca9ba5c534a9e04a3d [2021-11-23 00:34:32,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:34:32,049 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:34:32,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:34:32,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:34:32,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:34:32,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:34:32" (1/1) ... [2021-11-23 00:34:32,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d868b52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:32, skipping insertion in model container [2021-11-23 00:34:32,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:34:32" (1/1) ... [2021-11-23 00:34:32,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:34:32,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:34:34,175 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i[398836,398849] [2021-11-23 00:34:34,202 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:34:34,260 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:34:34,565 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i[398836,398849] [2021-11-23 00:34:34,569 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:34:34,700 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:34:34,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:34 WrapperNode [2021-11-23 00:34:34,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:34:34,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:34:34,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:34:34,703 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:34:34,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:34" (1/1) ... [2021-11-23 00:34:34,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:34" (1/1) ... [2021-11-23 00:34:35,735 INFO L137 Inliner]: procedures = 399, calls = 4674, calls flagged for inlining = 1052, calls inlined = 3352, statements flattened = 49502 [2021-11-23 00:34:35,736 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:34:35,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:34:35,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:34:35,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:34:35,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:34" (1/1) ... [2021-11-23 00:34:35,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:34" (1/1) ... [2021-11-23 00:34:35,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:34" (1/1) ... [2021-11-23 00:34:35,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:34" (1/1) ... [2021-11-23 00:34:36,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:34" (1/1) ... [2021-11-23 00:34:36,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:34" (1/1) ... [2021-11-23 00:34:36,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:34" (1/1) ... [2021-11-23 00:34:37,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:34:37,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:34:37,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:34:37,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:34:37,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:34" (1/1) ... [2021-11-23 00:34:37,150 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 00:34:37,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 00:34:37,188 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) [2021-11-23 00:34:37,255 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 [2021-11-23 00:34:37,289 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_function [2021-11-23 00:34:37,289 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_function [2021-11-23 00:34:37,289 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2021-11-23 00:34:37,289 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2021-11-23 00:34:37,289 INFO L130 BoogieDeclarations]: Found specification of procedure configfs_composite_bind [2021-11-23 00:34:37,289 INFO L138 BoogieDeclarations]: Found implementation of procedure configfs_composite_bind [2021-11-23 00:34:37,289 INFO L130 BoogieDeclarations]: Found specification of procedure composite_dev_prepare [2021-11-23 00:34:37,289 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_dev_prepare [2021-11-23 00:34:37,289 INFO L130 BoogieDeclarations]: Found specification of procedure composite_unbind [2021-11-23 00:34:37,289 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_unbind [2021-11-23 00:34:37,289 INFO L130 BoogieDeclarations]: Found specification of procedure composite_bind [2021-11-23 00:34:37,290 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_bind [2021-11-23 00:34:37,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 00:34:37,290 INFO L130 BoogieDeclarations]: Found specification of procedure bos_desc [2021-11-23 00:34:37,290 INFO L138 BoogieDeclarations]: Found implementation of procedure bos_desc [2021-11-23 00:34:37,290 INFO L130 BoogieDeclarations]: Found specification of procedure composite_disconnect [2021-11-23 00:34:37,290 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_disconnect [2021-11-23 00:34:37,290 INFO L130 BoogieDeclarations]: Found specification of procedure usb_remove_function [2021-11-23 00:34:37,290 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_remove_function [2021-11-23 00:34:37,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 00:34:37,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 00:34:37,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 00:34:37,290 INFO L130 BoogieDeclarations]: Found specification of procedure composite_resume [2021-11-23 00:34:37,290 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_resume [2021-11-23 00:34:37,291 INFO L130 BoogieDeclarations]: Found specification of procedure configfs_composite_unbind [2021-11-23 00:34:37,291 INFO L138 BoogieDeclarations]: Found implementation of procedure configfs_composite_unbind [2021-11-23 00:34:37,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 00:34:37,291 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_dequeue [2021-11-23 00:34:37,291 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_dequeue [2021-11-23 00:34:37,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:34:37,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 00:34:37,291 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 00:34:37,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 00:34:37,291 INFO L130 BoogieDeclarations]: Found specification of procedure composite_dev_cleanup [2021-11-23 00:34:37,291 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_dev_cleanup [2021-11-23 00:34:37,291 INFO L130 BoogieDeclarations]: Found specification of procedure composite_suspend [2021-11-23 00:34:37,291 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_suspend [2021-11-23 00:34:37,291 INFO L130 BoogieDeclarations]: Found specification of procedure purge_configs_funcs [2021-11-23 00:34:37,292 INFO L138 BoogieDeclarations]: Found implementation of procedure purge_configs_funcs [2021-11-23 00:34:37,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:34:37,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:34:37,292 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_function_instance [2021-11-23 00:34:37,292 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_function_instance [2021-11-23 00:34:37,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 00:34:37,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 00:34:37,292 INFO L130 BoogieDeclarations]: Found specification of procedure reset_config [2021-11-23 00:34:37,292 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_config [2021-11-23 00:34:37,292 INFO L130 BoogieDeclarations]: Found specification of procedure usb_add_function [2021-11-23 00:34:37,292 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_add_function [2021-11-23 00:34:37,292 INFO L130 BoogieDeclarations]: Found specification of procedure __composite_unbind [2021-11-23 00:34:37,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __composite_unbind [2021-11-23 00:34:37,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 00:34:37,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 00:34:37,293 INFO L130 BoogieDeclarations]: Found specification of procedure config_usb_cfg_unlink [2021-11-23 00:34:37,293 INFO L138 BoogieDeclarations]: Found implementation of procedure config_usb_cfg_unlink [2021-11-23 00:34:37,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 00:34:37,293 INFO L130 BoogieDeclarations]: Found specification of procedure composite_setup [2021-11-23 00:34:37,293 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_setup [2021-11-23 00:34:37,293 INFO L130 BoogieDeclarations]: Found specification of procedure set_config [2021-11-23 00:34:37,293 INFO L138 BoogieDeclarations]: Found implementation of procedure set_config [2021-11-23 00:34:37,293 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_function [2021-11-23 00:34:37,293 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_function [2021-11-23 00:34:37,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 00:34:37,293 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2021-11-23 00:34:37,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2021-11-23 00:34:37,294 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 00:34:37,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 00:34:37,294 INFO L130 BoogieDeclarations]: Found specification of procedure remove_config [2021-11-23 00:34:37,294 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_config [2021-11-23 00:34:37,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:34:37,294 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 00:34:37,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 00:34:38,780 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:34:38,781 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:35:04,732 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:35:04,781 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:35:04,781 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 00:35:04,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:35:04 BoogieIcfgContainer [2021-11-23 00:35:04,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:35:04,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 00:35:04,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 00:35:04,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 00:35:04,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:34:32" (1/3) ... [2021-11-23 00:35:04,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a23e25c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:35:04, skipping insertion in model container [2021-11-23 00:35:04,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:34" (2/3) ... [2021-11-23 00:35:04,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a23e25c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:35:04, skipping insertion in model container [2021-11-23 00:35:04,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:35:04" (3/3) ... [2021-11-23 00:35:04,800 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i [2021-11-23 00:35:04,803 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 00:35:04,803 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-23 00:35:04,882 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 00:35:04,887 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 [2021-11-23 00:35:04,888 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-23 00:35:05,018 INFO L276 IsEmpty]: Start isEmpty. Operand has 11772 states, 11636 states have (on average 1.4439669989687178) internal successors, (16802), 11656 states have internal predecessors, (16802), 101 states have call successors, (101), 28 states have call predecessors, (101), 28 states have return successors, (101), 95 states have call predecessors, (101), 101 states have call successors, (101) [2021-11-23 00:35:05,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2021-11-23 00:35:05,056 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:35:05,057 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:35:05,058 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [usb_put_function_instanceErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-23 00:35:05,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:35:05,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1930226936, now seen corresponding path program 1 times [2021-11-23 00:35:05,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:35:05,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061762977] [2021-11-23 00:35:05,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:35:05,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:35:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:35:05,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:35:05,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:35:05,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061762977] [2021-11-23 00:35:05,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061762977] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:35:05,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:35:05,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 00:35:05,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315695172] [2021-11-23 00:35:05,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:35:06,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 00:35:06,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:35:06,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 00:35:06,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 00:35:06,047 INFO L87 Difference]: Start difference. First operand has 11772 states, 11636 states have (on average 1.4439669989687178) internal successors, (16802), 11656 states have internal predecessors, (16802), 101 states have call successors, (101), 28 states have call predecessors, (101), 28 states have return successors, (101), 95 states have call predecessors, (101), 101 states have call successors, (101) Second operand has 2 states, 2 states have (on average 205.0) internal successors, (410), 2 states have internal predecessors, (410), 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) [2021-11-23 00:35:06,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:35:06,411 INFO L93 Difference]: Finished difference Result 23534 states and 34098 transitions. [2021-11-23 00:35:06,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 00:35:06,415 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 205.0) internal successors, (410), 2 states have internal predecessors, (410), 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 410 [2021-11-23 00:35:06,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:35:06,480 INFO L225 Difference]: With dead ends: 23534 [2021-11-23 00:35:06,481 INFO L226 Difference]: Without dead ends: 11720 [2021-11-23 00:35:06,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 00:35:06,526 INFO L933 BasicCegarLoop]: 16667 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16667 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 00:35:06,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 16667 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 00:35:06,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11720 states. [2021-11-23 00:35:06,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11720 to 11720. [2021-11-23 00:35:06,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11720 states, 11585 states have (on average 1.4136383254208027) internal successors, (16377), 11604 states have internal predecessors, (16377), 101 states have call successors, (101), 28 states have call predecessors, (101), 28 states have return successors, (101), 95 states have call predecessors, (101), 101 states have call successors, (101) [2021-11-23 00:35:06,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11720 states to 11720 states and 16579 transitions. [2021-11-23 00:35:06,866 INFO L78 Accepts]: Start accepts. Automaton has 11720 states and 16579 transitions. Word has length 410 [2021-11-23 00:35:06,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:35:06,867 INFO L470 AbstractCegarLoop]: Abstraction has 11720 states and 16579 transitions. [2021-11-23 00:35:06,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 205.0) internal successors, (410), 2 states have internal predecessors, (410), 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) [2021-11-23 00:35:06,868 INFO L276 IsEmpty]: Start isEmpty. Operand 11720 states and 16579 transitions. [2021-11-23 00:35:06,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2021-11-23 00:35:06,880 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:35:06,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:35:06,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 00:35:06,881 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [usb_put_function_instanceErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-23 00:35:06,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:35:06,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1231023756, now seen corresponding path program 1 times [2021-11-23 00:35:06,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:35:06,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835586950] [2021-11-23 00:35:06,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:35:06,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:35:07,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:35:07,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:35:07,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:35:07,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835586950] [2021-11-23 00:35:07,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835586950] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:35:07,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:35:07,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 00:35:07,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693646263] [2021-11-23 00:35:07,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:35:07,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:35:07,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:35:07,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:35:07,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:35:07,954 INFO L87 Difference]: Start difference. First operand 11720 states and 16579 transitions. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 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) [2021-11-23 00:35:08,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:35:08,442 INFO L93 Difference]: Finished difference Result 34172 states and 48690 transitions. [2021-11-23 00:35:08,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:35:08,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 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 410 [2021-11-23 00:35:08,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:35:08,518 INFO L225 Difference]: With dead ends: 34172 [2021-11-23 00:35:08,518 INFO L226 Difference]: Without dead ends: 22830 [2021-11-23 00:35:08,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:35:08,555 INFO L933 BasicCegarLoop]: 16677 mSDtfsCounter, 15915 mSDsluCounter, 16563 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15915 SdHoareTripleChecker+Valid, 33240 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 00:35:08,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15915 Valid, 33240 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 00:35:08,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22830 states. [2021-11-23 00:35:09,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22830 to 22820. [2021-11-23 00:35:09,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22820 states, 22556 states have (on average 1.4233906721049832) internal successors, (32106), 22589 states have internal predecessors, (32106), 202 states have call successors, (202), 56 states have call predecessors, (202), 56 states have return successors, (202), 190 states have call predecessors, (202), 202 states have call successors, (202) [2021-11-23 00:35:09,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22820 states to 22820 states and 32510 transitions. [2021-11-23 00:35:09,180 INFO L78 Accepts]: Start accepts. Automaton has 22820 states and 32510 transitions. Word has length 410 [2021-11-23 00:35:09,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:35:09,181 INFO L470 AbstractCegarLoop]: Abstraction has 22820 states and 32510 transitions. [2021-11-23 00:35:09,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 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) [2021-11-23 00:35:09,181 INFO L276 IsEmpty]: Start isEmpty. Operand 22820 states and 32510 transitions. [2021-11-23 00:35:09,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2021-11-23 00:35:09,194 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:35:09,194 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:35:09,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 00:35:09,195 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [usb_put_function_instanceErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-23 00:35:09,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:35:09,195 INFO L85 PathProgramCache]: Analyzing trace with hash -2105181739, now seen corresponding path program 1 times [2021-11-23 00:35:09,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:35:09,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633251158] [2021-11-23 00:35:09,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:35:09,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:35:09,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:35:10,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:35:10,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:35:10,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633251158] [2021-11-23 00:35:10,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633251158] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:35:10,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:35:10,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 00:35:10,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164526217] [2021-11-23 00:35:10,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:35:10,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:35:10,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:35:10,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:35:10,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:35:10,510 INFO L87 Difference]: Start difference. First operand 22820 states and 32510 transitions. Second operand has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 2 states have internal predecessors, (413), 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) [2021-11-23 00:35:11,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:35:11,281 INFO L93 Difference]: Finished difference Result 67692 states and 97109 transitions. [2021-11-23 00:35:11,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:35:11,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 2 states have internal predecessors, (413), 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 413 [2021-11-23 00:35:11,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:35:11,395 INFO L225 Difference]: With dead ends: 67692 [2021-11-23 00:35:11,396 INFO L226 Difference]: Without dead ends: 45246 [2021-11-23 00:35:11,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:35:11,442 INFO L933 BasicCegarLoop]: 16702 mSDtfsCounter, 16152 mSDsluCounter, 16253 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16152 SdHoareTripleChecker+Valid, 32955 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 00:35:11,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16152 Valid, 32955 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 00:35:11,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45246 states. [2021-11-23 00:35:12,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45246 to 45231. [2021-11-23 00:35:12,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45231 states, 44709 states have (on average 1.4262900087230759) internal successors, (63768), 44770 states have internal predecessors, (63768), 404 states have call successors, (404), 112 states have call predecessors, (404), 112 states have return successors, (606), 380 states have call predecessors, (606), 404 states have call successors, (606) [2021-11-23 00:35:12,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45231 states to 45231 states and 64778 transitions. [2021-11-23 00:35:12,445 INFO L78 Accepts]: Start accepts. Automaton has 45231 states and 64778 transitions. Word has length 413 [2021-11-23 00:35:12,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:35:12,446 INFO L470 AbstractCegarLoop]: Abstraction has 45231 states and 64778 transitions. [2021-11-23 00:35:12,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 2 states have internal predecessors, (413), 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) [2021-11-23 00:35:12,448 INFO L276 IsEmpty]: Start isEmpty. Operand 45231 states and 64778 transitions. [2021-11-23 00:35:12,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2021-11-23 00:35:12,465 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:35:12,466 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:35:12,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 00:35:12,466 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting usb_put_function_instanceErr0ASSERT_VIOLATIONERROR_FUNCTION === [usb_put_function_instanceErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-23 00:35:12,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:35:12,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1570687283, now seen corresponding path program 1 times [2021-11-23 00:35:12,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:35:12,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539145706] [2021-11-23 00:35:12,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:35:12,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:35:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:35:13,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2021-11-23 00:35:13,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:35:13,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-23 00:35:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:35:13,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-23 00:35:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:35:13,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-23 00:35:13,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:35:13,406 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:35:13,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:35:13,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539145706] [2021-11-23 00:35:13,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539145706] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 00:35:13,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125937927] [2021-11-23 00:35:13,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:35:13,407 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 00:35:13,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 00:35:13,411 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 00:35:13,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 00:35:16,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:35:16,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 12110 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 00:35:16,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:35:16,904 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 00:35:16,905 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 00:35:16,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125937927] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:35:16,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 00:35:16,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-23 00:35:16,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178043688] [2021-11-23 00:35:16,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:35:16,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:35:16,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:35:16,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:35:16,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 00:35:16,907 INFO L87 Difference]: Start difference. First operand 45231 states and 64778 transitions. Second operand has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-23 00:35:18,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:35:18,107 INFO L93 Difference]: Finished difference Result 134739 states and 193248 transitions. [2021-11-23 00:35:18,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:35:18,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 450 [2021-11-23 00:35:18,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:35:18,363 INFO L225 Difference]: With dead ends: 134739 [2021-11-23 00:35:18,363 INFO L226 Difference]: Without dead ends: 89886 [2021-11-23 00:35:18,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 00:35:18,445 INFO L933 BasicCegarLoop]: 16662 mSDtfsCounter, 16467 mSDsluCounter, 16136 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16467 SdHoareTripleChecker+Valid, 32798 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 00:35:18,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16467 Valid, 32798 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 00:35:18,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89886 states. [2021-11-23 00:35:19,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89886 to 89525. [2021-11-23 00:35:20,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89525 states, 88531 states have (on average 1.4296461126611018) internal successors, (126568), 88648 states have internal predecessors, (126568), 764 states have call successors, (764), 224 states have call predecessors, (764), 224 states have return successors, (1146), 716 states have call predecessors, (1146), 764 states have call successors, (1146) [2021-11-23 00:35:20,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89525 states to 89525 states and 128478 transitions. [2021-11-23 00:35:20,494 INFO L78 Accepts]: Start accepts. Automaton has 89525 states and 128478 transitions. Word has length 450 [2021-11-23 00:35:20,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:35:20,495 INFO L470 AbstractCegarLoop]: Abstraction has 89525 states and 128478 transitions. [2021-11-23 00:35:20,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-23 00:35:20,495 INFO L276 IsEmpty]: Start isEmpty. Operand 89525 states and 128478 transitions. [2021-11-23 00:35:20,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2021-11-23 00:35:20,509 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:35:20,510 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:35:20,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 00:35:20,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 00:35:20,720 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONERROR_FUNCTION === [usb_put_function_instanceErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-23 00:35:20,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:35:20,721 INFO L85 PathProgramCache]: Analyzing trace with hash -793551256, now seen corresponding path program 1 times [2021-11-23 00:35:20,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:35:20,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128327792] [2021-11-23 00:35:20,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:35:20,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:35:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:35:21,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:35:21,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:35:21,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128327792] [2021-11-23 00:35:21,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128327792] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:35:21,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:35:21,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 00:35:21,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726308455] [2021-11-23 00:35:21,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:35:21,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:35:21,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:35:21,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:35:21,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:35:21,579 INFO L87 Difference]: Start difference. First operand 89525 states and 128478 transitions. Second operand has 3 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 states have internal predecessors, (424), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:35:23,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:35:23,524 INFO L93 Difference]: Finished difference Result 262033 states and 376490 transitions. [2021-11-23 00:35:23,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:35:23,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 states have internal predecessors, (424), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 426 [2021-11-23 00:35:23,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:35:24,049 INFO L225 Difference]: With dead ends: 262033 [2021-11-23 00:35:24,049 INFO L226 Difference]: Without dead ends: 172886 [2021-11-23 00:35:24,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:35:24,442 INFO L933 BasicCegarLoop]: 16717 mSDtfsCounter, 15525 mSDsluCounter, 16139 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15525 SdHoareTripleChecker+Valid, 32856 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 00:35:24,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15525 Valid, 32856 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 00:35:24,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172886 states. [2021-11-23 00:35:27,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172886 to 172505. [2021-11-23 00:35:27,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172505 states, 170571 states have (on average 1.43245921053403) internal successors, (244336), 170800 states have internal predecessors, (244336), 1480 states have call successors, (1480), 448 states have call predecessors, (1480), 448 states have return successors, (2220), 1384 states have call predecessors, (2220), 1480 states have call successors, (2220) [2021-11-23 00:35:28,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172505 states to 172505 states and 248036 transitions. [2021-11-23 00:35:28,190 INFO L78 Accepts]: Start accepts. Automaton has 172505 states and 248036 transitions. Word has length 426 [2021-11-23 00:35:28,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 00:35:28,191 INFO L470 AbstractCegarLoop]: Abstraction has 172505 states and 248036 transitions. [2021-11-23 00:35:28,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 states have internal predecessors, (424), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 00:35:28,192 INFO L276 IsEmpty]: Start isEmpty. Operand 172505 states and 248036 transitions. [2021-11-23 00:35:28,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2021-11-23 00:35:28,211 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 00:35:28,211 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 00:35:28,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 00:35:28,212 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [usb_put_function_instanceErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-23 00:35:28,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:35:28,212 INFO L85 PathProgramCache]: Analyzing trace with hash 405476606, now seen corresponding path program 1 times [2021-11-23 00:35:28,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 00:35:28,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333225420] [2021-11-23 00:35:28,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 00:35:28,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:35:28,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:35:29,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:35:29,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 00:35:29,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333225420] [2021-11-23 00:35:29,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333225420] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 00:35:29,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 00:35:29,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 00:35:29,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383101827] [2021-11-23 00:35:29,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 00:35:29,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 00:35:29,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 00:35:29,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 00:35:29,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:35:29,138 INFO L87 Difference]: Start difference. First operand 172505 states and 248036 transitions. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 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) [2021-11-23 00:35:32,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 00:35:32,707 INFO L93 Difference]: Finished difference Result 514713 states and 740666 transitions. [2021-11-23 00:35:32,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 00:35:32,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 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 428 [2021-11-23 00:35:32,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 00:35:33,587 INFO L225 Difference]: With dead ends: 514713 [2021-11-23 00:35:33,587 INFO L226 Difference]: Without dead ends: 342586 [2021-11-23 00:35:34,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 00:35:34,153 INFO L933 BasicCegarLoop]: 17744 mSDtfsCounter, 16252 mSDsluCounter, 16163 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16252 SdHoareTripleChecker+Valid, 33907 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 00:35:34,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16252 Valid, 33907 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 00:35:34,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342586 states.