./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--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 367b4f63019d29c39ca623f3d4d0cb3290afe20355c38bfe319a1b34fe36216c --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-02 21:39:56,598 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 21:39:56,600 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 21:39:56,631 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 21:39:56,632 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 21:39:56,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 21:39:56,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 21:39:56,634 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 21:39:56,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 21:39:56,636 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 21:39:56,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 21:39:56,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 21:39:56,638 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 21:39:56,639 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 21:39:56,640 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 21:39:56,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 21:39:56,641 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 21:39:56,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 21:39:56,643 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 21:39:56,644 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 21:39:56,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 21:39:56,646 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 21:39:56,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 21:39:56,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 21:39:56,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 21:39:56,649 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 21:39:56,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 21:39:56,650 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 21:39:56,650 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 21:39:56,651 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 21:39:56,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 21:39:56,651 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 21:39:56,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 21:39:56,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 21:39:56,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 21:39:56,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 21:39:56,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 21:39:56,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 21:39:56,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 21:39:56,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 21:39:56,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 21:39:56,656 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 21:39:56,669 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 21:39:56,669 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 21:39:56,670 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 21:39:56,670 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 21:39:56,671 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 21:39:56,671 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 21:39:56,671 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 21:39:56,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 21:39:56,671 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 21:39:56,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 21:39:56,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 21:39:56,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 21:39:56,672 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 21:39:56,672 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 21:39:56,673 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 21:39:56,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 21:39:56,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 21:39:56,673 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 21:39:56,673 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 21:39:56,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 21:39:56,674 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 21:39:56,674 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 21:39:56,674 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 21:39:56,674 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 21:39:56,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 21:39:56,675 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 21:39:56,675 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 21:39:56,675 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 21:39:56,675 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 21:39:56,675 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 367b4f63019d29c39ca623f3d4d0cb3290afe20355c38bfe319a1b34fe36216c [2021-11-02 21:39:56,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 21:39:56,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 21:39:56,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 21:39:56,872 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 21:39:56,874 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 21:39:56,875 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i [2021-11-02 21:39:56,930 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb5ebf3dc/2df327435392459ba1c42f633d8b8b04/FLAG95470ffaa [2021-11-02 21:39:57,585 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 21:39:57,586 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i [2021-11-02 21:39:57,622 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb5ebf3dc/2df327435392459ba1c42f633d8b8b04/FLAG95470ffaa [2021-11-02 21:39:57,898 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb5ebf3dc/2df327435392459ba1c42f633d8b8b04 [2021-11-02 21:39:57,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 21:39:57,901 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 21:39:57,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 21:39:57,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 21:39:57,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 21:39:57,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:39:57" (1/1) ... [2021-11-02 21:39:57,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4490f7ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:39:57, skipping insertion in model container [2021-11-02 21:39:57,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:39:57" (1/1) ... [2021-11-02 21:39:57,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 21:39:58,006 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 21:40:00,252 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i[415639,415652] [2021-11-02 21:40:00,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 21:40:00,549 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 21:40:00,912 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i[415639,415652] [2021-11-02 21:40:00,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 21:40:01,064 INFO L208 MainTranslator]: Completed translation [2021-11-02 21:40:01,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:01 WrapperNode [2021-11-02 21:40:01,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 21:40:01,067 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 21:40:01,067 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 21:40:01,067 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 21:40:01,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:01" (1/1) ... [2021-11-02 21:40:01,192 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:01" (1/1) ... [2021-11-02 21:40:02,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 21:40:02,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 21:40:02,223 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 21:40:02,223 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 21:40:02,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:01" (1/1) ... [2021-11-02 21:40:02,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:01" (1/1) ... [2021-11-02 21:40:02,453 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:01" (1/1) ... [2021-11-02 21:40:02,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:01" (1/1) ... [2021-11-02 21:40:03,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:01" (1/1) ... [2021-11-02 21:40:03,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:01" (1/1) ... [2021-11-02 21:40:03,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:01" (1/1) ... [2021-11-02 21:40:03,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 21:40:03,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 21:40:03,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 21:40:03,584 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 21:40:03,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:01" (1/1) ... [2021-11-02 21:40:03,603 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 21:40:03,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 21:40:03,661 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) [2021-11-02 21:40:03,703 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 [2021-11-02 21:40:03,743 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_function [2021-11-02 21:40:03,744 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_function [2021-11-02 21:40:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2021-11-02 21:40:03,744 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2021-11-02 21:40:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure configfs_composite_bind [2021-11-02 21:40:03,744 INFO L138 BoogieDeclarations]: Found implementation of procedure configfs_composite_bind [2021-11-02 21:40:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure composite_dev_prepare [2021-11-02 21:40:03,744 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_dev_prepare [2021-11-02 21:40:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure composite_unbind [2021-11-02 21:40:03,745 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_unbind [2021-11-02 21:40:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure composite_bind [2021-11-02 21:40:03,745 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_bind [2021-11-02 21:40:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 21:40:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure bos_desc [2021-11-02 21:40:03,745 INFO L138 BoogieDeclarations]: Found implementation of procedure bos_desc [2021-11-02 21:40:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure composite_disconnect [2021-11-02 21:40:03,746 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_disconnect [2021-11-02 21:40:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure usb_remove_function [2021-11-02 21:40:03,746 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_remove_function [2021-11-02 21:40:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-02 21:40:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-02 21:40:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 21:40:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure composite_resume [2021-11-02 21:40:03,746 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_resume [2021-11-02 21:40:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure configfs_composite_unbind [2021-11-02 21:40:03,747 INFO L138 BoogieDeclarations]: Found implementation of procedure configfs_composite_unbind [2021-11-02 21:40:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 21:40:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_dequeue [2021-11-02 21:40:03,747 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_dequeue [2021-11-02 21:40:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 21:40:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-02 21:40:03,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-02 21:40:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure composite_dev_cleanup [2021-11-02 21:40:03,748 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_dev_cleanup [2021-11-02 21:40:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure composite_suspend [2021-11-02 21:40:03,748 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_suspend [2021-11-02 21:40:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure purge_configs_funcs [2021-11-02 21:40:03,748 INFO L138 BoogieDeclarations]: Found implementation of procedure purge_configs_funcs [2021-11-02 21:40:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 21:40:03,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 21:40:03,749 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_function_instance [2021-11-02 21:40:03,749 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_function_instance [2021-11-02 21:40:03,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-02 21:40:03,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-02 21:40:03,749 INFO L130 BoogieDeclarations]: Found specification of procedure reset_config [2021-11-02 21:40:03,749 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_config [2021-11-02 21:40:03,749 INFO L130 BoogieDeclarations]: Found specification of procedure usb_add_function [2021-11-02 21:40:03,750 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_add_function [2021-11-02 21:40:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure __composite_unbind [2021-11-02 21:40:03,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __composite_unbind [2021-11-02 21:40:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 21:40:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 21:40:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure config_usb_cfg_unlink [2021-11-02 21:40:03,750 INFO L138 BoogieDeclarations]: Found implementation of procedure config_usb_cfg_unlink [2021-11-02 21:40:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 21:40:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure composite_setup [2021-11-02 21:40:03,751 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_setup [2021-11-02 21:40:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure set_config [2021-11-02 21:40:03,751 INFO L138 BoogieDeclarations]: Found implementation of procedure set_config [2021-11-02 21:40:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_function [2021-11-02 21:40:03,751 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_function [2021-11-02 21:40:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 21:40:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2021-11-02 21:40:03,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2021-11-02 21:40:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-02 21:40:03,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-02 21:40:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure remove_config [2021-11-02 21:40:03,752 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_config [2021-11-02 21:40:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 21:40:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-02 21:40:03,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-02 21:40:24,730 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 21:40:24,731 INFO L299 CfgBuilder]: Removed 8398 assume(true) statements. [2021-11-02 21:40:24,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:40:24 BoogieIcfgContainer [2021-11-02 21:40:24,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 21:40:24,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 21:40:24,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 21:40:24,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 21:40:24,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:39:57" (1/3) ... [2021-11-02 21:40:24,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec85b5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:40:24, skipping insertion in model container [2021-11-02 21:40:24,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:40:01" (2/3) ... [2021-11-02 21:40:24,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec85b5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:40:24, skipping insertion in model container [2021-11-02 21:40:24,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:40:24" (3/3) ... [2021-11-02 21:40:24,749 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i [2021-11-02 21:40:24,753 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 21:40:24,753 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 292 error locations. [2021-11-02 21:40:24,821 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 21:40:24,825 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 [2021-11-02 21:40:24,825 INFO L340 AbstractCegarLoop]: Starting to check reachability of 292 error locations. [2021-11-02 21:40:24,945 INFO L276 IsEmpty]: Start isEmpty. Operand has 13059 states, 12637 states have (on average 1.4530347392577352) internal successors, (18362), 12943 states have internal predecessors, (18362), 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) [2021-11-02 21:40:24,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2021-11-02 21:40:24,968 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 21:40:24,969 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] [2021-11-02 21:40:24,969 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 289 more)] === [2021-11-02 21:40:24,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 21:40:24,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1839370102, now seen corresponding path program 1 times [2021-11-02 21:40:24,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 21:40:24,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138758098] [2021-11-02 21:40:24,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 21:40:24,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 21:40:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 21:40:25,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 21:40:25,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 21:40:25,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138758098] [2021-11-02 21:40:25,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138758098] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 21:40:25,937 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 21:40:25,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 21:40:25,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795426922] [2021-11-02 21:40:25,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 21:40:25,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 21:40:25,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 21:40:25,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 21:40:26,002 INFO L87 Difference]: Start difference. First operand has 13059 states, 12637 states have (on average 1.4530347392577352) internal successors, (18362), 12943 states have internal predecessors, (18362), 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 199.0) internal successors, (398), 2 states have internal predecessors, (398), 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) [2021-11-02 21:40:28,156 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:41:00,750 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:41:20,505 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 21:41:28,485 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:41:52,132 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:42:34,767 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:42:36,366 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:42:37,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 21:42:37,499 INFO L93 Difference]: Finished difference Result 26114 states and 37224 transitions. [2021-11-02 21:42:37,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 21:42:37,501 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 199.0) internal successors, (398), 2 states have internal predecessors, (398), 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 398 [2021-11-02 21:42:37,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 21:42:37,569 INFO L225 Difference]: With dead ends: 26114 [2021-11-02 21:42:37,569 INFO L226 Difference]: Without dead ends: 13013 [2021-11-02 21:42:37,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 21:42:37,617 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17697 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 123311.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 17703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 112.45ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17697 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 129723.80ms IncrementalHoareTripleChecker+Time [2021-11-02 21:42:37,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 244 Invalid, 17703 Unknown, 0 Unchecked, 112.45ms Time], IncrementalHoareTripleChecker [0 Valid, 17697 Invalid, 6 Unknown, 0 Unchecked, 129723.80ms Time] [2021-11-02 21:42:37,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13013 states. [2021-11-02 21:42:37,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13013 to 13013. [2021-11-02 21:42:38,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13013 states, 12592 states have (on average 1.4022395171537485) internal successors, (17657), 12897 states have internal predecessors, (17657), 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) [2021-11-02 21:42:38,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13013 states to 13013 states and 17859 transitions. [2021-11-02 21:42:38,071 INFO L78 Accepts]: Start accepts. Automaton has 13013 states and 17859 transitions. Word has length 398 [2021-11-02 21:42:38,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 21:42:38,073 INFO L470 AbstractCegarLoop]: Abstraction has 13013 states and 17859 transitions. [2021-11-02 21:42:38,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 199.0) internal successors, (398), 2 states have internal predecessors, (398), 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) [2021-11-02 21:42:38,077 INFO L276 IsEmpty]: Start isEmpty. Operand 13013 states and 17859 transitions. [2021-11-02 21:42:38,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2021-11-02 21:42:38,087 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 21:42:38,087 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] [2021-11-02 21:42:38,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 21:42:38,088 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 289 more)] === [2021-11-02 21:42:38,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 21:42:38,089 INFO L85 PathProgramCache]: Analyzing trace with hash 297886088, now seen corresponding path program 1 times [2021-11-02 21:42:38,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 21:42:38,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396434900] [2021-11-02 21:42:38,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 21:42:38,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 21:42:38,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 21:42:39,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 21:42:39,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 21:42:39,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396434900] [2021-11-02 21:42:39,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396434900] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 21:42:39,025 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 21:42:39,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 21:42:39,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66327248] [2021-11-02 21:42:39,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 21:42:39,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 21:42:39,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 21:42:39,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:42:39,027 INFO L87 Difference]: Start difference. First operand 13013 states and 17859 transitions. Second operand has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 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) [2021-11-02 21:42:41,224 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:43:42,001 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:44:17,900 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 21:44:31,599 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:45:17,074 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:46:42,164 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 [] [2021-11-02 21:46:45,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 21:46:45,596 INFO L93 Difference]: Finished difference Result 25763 states and 35483 transitions. [2021-11-02 21:46:45,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 21:46:45,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 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 398 [2021-11-02 21:46:45,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 21:46:45,659 INFO L225 Difference]: With dead ends: 25763 [2021-11-02 21:46:45,660 INFO L226 Difference]: Without dead ends: 13042 [2021-11-02 21:46:45,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.81ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:46:45,691 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 0 mSDsluCounter, 17763 mSDsCounter, 0 mSdLazyCounter, 35273 mSolverCounterSat, 56 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 235829.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 35335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 255.35ms SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 35273 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 244793.73ms IncrementalHoareTripleChecker+Time [2021-11-02 21:46:45,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 404 Invalid, 35335 Unknown, 0 Unchecked, 255.35ms Time], IncrementalHoareTripleChecker [56 Valid, 35273 Invalid, 6 Unknown, 0 Unchecked, 244793.73ms Time] [2021-11-02 21:46:45,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13042 states. [2021-11-02 21:46:45,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13042 to 13042. [2021-11-02 21:46:45,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13042 states, 12621 states have (on average 1.4013152682037873) internal successors, (17686), 12926 states have internal predecessors, (17686), 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) [2021-11-02 21:46:45,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13042 states to 13042 states and 17888 transitions. [2021-11-02 21:46:45,985 INFO L78 Accepts]: Start accepts. Automaton has 13042 states and 17888 transitions. Word has length 398 [2021-11-02 21:46:45,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 21:46:45,986 INFO L470 AbstractCegarLoop]: Abstraction has 13042 states and 17888 transitions. [2021-11-02 21:46:45,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 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) [2021-11-02 21:46:45,987 INFO L276 IsEmpty]: Start isEmpty. Operand 13042 states and 17888 transitions. [2021-11-02 21:46:45,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2021-11-02 21:46:45,992 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 21:46:45,992 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] [2021-11-02 21:46:45,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 21:46:45,993 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 289 more)] === [2021-11-02 21:46:45,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 21:46:45,994 INFO L85 PathProgramCache]: Analyzing trace with hash -707856736, now seen corresponding path program 1 times [2021-11-02 21:46:45,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 21:46:45,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875560769] [2021-11-02 21:46:45,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 21:46:45,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 21:46:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 21:46:46,827 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-02 21:46:46,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 21:46:46,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875560769] [2021-11-02 21:46:46,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875560769] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 21:46:46,828 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 21:46:46,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 21:46:46,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814489955] [2021-11-02 21:46:46,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 21:46:46,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 21:46:46,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 21:46:46,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:46:46,829 INFO L87 Difference]: Start difference. First operand 13042 states and 17888 transitions. Second operand has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 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) [2021-11-02 21:46:48,949 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:46:50,095 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:47:20,439 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:47:40,602 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 21:47:49,112 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:48:26,791 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:51:06,117 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:51:10,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 21:51:10,439 INFO L93 Difference]: Finished difference Result 37461 states and 51686 transitions. [2021-11-02 21:51:10,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 21:51:10,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 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 427 [2021-11-02 21:51:10,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 21:51:10,504 INFO L225 Difference]: With dead ends: 37461 [2021-11-02 21:51:10,504 INFO L226 Difference]: Without dead ends: 24826 [2021-11-02 21:51:10,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.50ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:51:10,537 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 16326 mSDsluCounter, 17831 mSDsCounter, 0 mSdLazyCounter, 35328 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 246045.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16334 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 35335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 257.16ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35328 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 261065.96ms IncrementalHoareTripleChecker+Time [2021-11-02 21:51:10,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16334 Valid, 503 Invalid, 35335 Unknown, 0 Unchecked, 257.16ms Time], IncrementalHoareTripleChecker [1 Valid, 35328 Invalid, 6 Unknown, 0 Unchecked, 261065.96ms Time] [2021-11-02 21:51:10,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24826 states. [2021-11-02 21:51:11,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24826 to 24090. [2021-11-02 21:51:11,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24090 states, 23544 states have (on average 1.416199456337071) internal successors, (33343), 23863 states have internal predecessors, (33343), 199 states have call successors, (199), 56 states have call predecessors, (199), 55 states have return successors, (206), 186 states have call predecessors, (206), 199 states have call successors, (206) [2021-11-02 21:51:11,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24090 states to 24090 states and 33748 transitions. [2021-11-02 21:51:11,198 INFO L78 Accepts]: Start accepts. Automaton has 24090 states and 33748 transitions. Word has length 427 [2021-11-02 21:51:11,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 21:51:11,199 INFO L470 AbstractCegarLoop]: Abstraction has 24090 states and 33748 transitions. [2021-11-02 21:51:11,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 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) [2021-11-02 21:51:11,199 INFO L276 IsEmpty]: Start isEmpty. Operand 24090 states and 33748 transitions. [2021-11-02 21:51:11,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2021-11-02 21:51:11,204 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 21:51:11,205 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, 1] [2021-11-02 21:51:11,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 21:51:11,205 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting config_usb_cfg_unlinkErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 289 more)] === [2021-11-02 21:51:11,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 21:51:11,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1850527983, now seen corresponding path program 1 times [2021-11-02 21:51:11,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 21:51:11,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637496822] [2021-11-02 21:51:11,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 21:51:11,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 21:51:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 21:51:11,901 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-02 21:51:11,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 21:51:11,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637496822] [2021-11-02 21:51:11,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637496822] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 21:51:11,902 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 21:51:11,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 21:51:11,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233254568] [2021-11-02 21:51:11,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 21:51:11,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 21:51:11,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 21:51:11,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 21:51:11,905 INFO L87 Difference]: Start difference. First operand 24090 states and 33748 transitions. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 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) [2021-11-02 21:51:14,024 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:51:41,256 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:51:58,066 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 21:52:05,742 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 21:52:45,254 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