./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 173e3943 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-dev-173e394 [2021-11-06 17:00:03,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 17:00:03,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 17:00:03,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 17:00:03,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 17:00:03,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 17:00:03,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 17:00:03,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 17:00:03,901 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 17:00:03,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 17:00:03,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 17:00:03,908 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 17:00:03,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 17:00:03,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 17:00:03,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 17:00:03,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 17:00:03,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 17:00:03,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 17:00:03,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 17:00:03,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 17:00:03,927 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 17:00:03,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 17:00:03,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 17:00:03,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 17:00:03,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 17:00:03,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 17:00:03,934 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 17:00:03,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 17:00:03,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 17:00:03,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 17:00:03,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 17:00:03,938 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 17:00:03,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 17:00:03,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 17:00:03,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 17:00:03,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 17:00:03,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 17:00:03,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 17:00:03,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 17:00:03,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 17:00:03,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 17:00:03,944 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 17:00:03,976 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 17:00:03,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 17:00:03,977 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 17:00:03,978 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 17:00:03,979 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 17:00:03,979 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 17:00:03,979 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 17:00:03,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 17:00:03,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 17:00:03,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 17:00:03,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 17:00:03,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 17:00:03,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 17:00:03,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 17:00:03,981 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 17:00:03,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 17:00:03,982 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 17:00:03,982 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 17:00:03,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 17:00:03,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 17:00:03,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 17:00:03,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 17:00:03,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 17:00:03,983 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 17:00:03,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 17:00:03,983 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 17:00:03,983 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 17:00:03,984 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 17:00:03,984 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 17:00:03,984 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 367b4f63019d29c39ca623f3d4d0cb3290afe20355c38bfe319a1b34fe36216c [2021-11-06 17:00:04,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 17:00:04,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 17:00:04,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 17:00:04,281 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 17:00:04,282 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 17:00:04,282 INFO L432 ainManager$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 [2021-11-06 17:00:04,345 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/452edfc0f/334a0af63a6d4408ba63d3744cbd4f25/FLAGa8392e991 [2021-11-06 17:00:05,141 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 17:00:05,142 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 [2021-11-06 17:00:05,198 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/452edfc0f/334a0af63a6d4408ba63d3744cbd4f25/FLAGa8392e991 [2021-11-06 17:00:05,679 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/452edfc0f/334a0af63a6d4408ba63d3744cbd4f25 [2021-11-06 17:00:05,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 17:00:05,683 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 17:00:05,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 17:00:05,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 17:00:05,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 17:00:05,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 05:00:05" (1/1) ... [2021-11-06 17:00:05,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47af458c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:00:05, skipping insertion in model container [2021-11-06 17:00:05,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 05:00:05" (1/1) ... [2021-11-06 17:00:05,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 17:00:05,832 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 17:00:08,305 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] [2021-11-06 17:00:08,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 17:00:08,540 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 17:00:08,985 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] [2021-11-06 17:00:08,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 17:00:09,182 INFO L208 MainTranslator]: Completed translation [2021-11-06 17:00:09,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:00:09 WrapperNode [2021-11-06 17:00:09,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 17:00:09,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 17:00:09,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 17:00:09,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 17:00:09,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:00:09" (1/1) ... [2021-11-06 17:00:09,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:00:09" (1/1) ... [2021-11-06 17:00:10,546 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 17:00:10,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 17:00:10,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 17:00:10,548 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 17:00:10,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:00:09" (1/1) ... [2021-11-06 17:00:10,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:00:09" (1/1) ... [2021-11-06 17:00:10,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:00:09" (1/1) ... [2021-11-06 17:00:10,909 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:00:09" (1/1) ... [2021-11-06 17:00:11,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:00:09" (1/1) ... [2021-11-06 17:00:11,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:00:09" (1/1) ... [2021-11-06 17:00:12,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:00:09" (1/1) ... [2021-11-06 17:00:12,497 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 17:00:12,499 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 17:00:12,499 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 17:00:12,499 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 17:00:12,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:00:09" (1/1) ... [2021-11-06 17:00:12,525 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 17:00:12,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 17:00:12,581 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) [2021-11-06 17:00:12,639 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 [2021-11-06 17:00:12,694 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_function [2021-11-06 17:00:12,694 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_function [2021-11-06 17:00:12,695 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2021-11-06 17:00:12,695 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2021-11-06 17:00:12,696 INFO L130 BoogieDeclarations]: Found specification of procedure configfs_composite_bind [2021-11-06 17:00:12,696 INFO L138 BoogieDeclarations]: Found implementation of procedure configfs_composite_bind [2021-11-06 17:00:12,696 INFO L130 BoogieDeclarations]: Found specification of procedure composite_dev_prepare [2021-11-06 17:00:12,696 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_dev_prepare [2021-11-06 17:00:12,696 INFO L130 BoogieDeclarations]: Found specification of procedure composite_unbind [2021-11-06 17:00:12,696 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_unbind [2021-11-06 17:00:12,697 INFO L130 BoogieDeclarations]: Found specification of procedure composite_bind [2021-11-06 17:00:12,697 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_bind [2021-11-06 17:00:12,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 17:00:12,697 INFO L130 BoogieDeclarations]: Found specification of procedure bos_desc [2021-11-06 17:00:12,697 INFO L138 BoogieDeclarations]: Found implementation of procedure bos_desc [2021-11-06 17:00:12,697 INFO L130 BoogieDeclarations]: Found specification of procedure composite_disconnect [2021-11-06 17:00:12,698 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_disconnect [2021-11-06 17:00:12,698 INFO L130 BoogieDeclarations]: Found specification of procedure usb_remove_function [2021-11-06 17:00:12,698 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_remove_function [2021-11-06 17:00:12,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 17:00:12,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 17:00:12,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 17:00:12,699 INFO L130 BoogieDeclarations]: Found specification of procedure composite_resume [2021-11-06 17:00:12,699 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_resume [2021-11-06 17:00:12,699 INFO L130 BoogieDeclarations]: Found specification of procedure configfs_composite_unbind [2021-11-06 17:00:12,699 INFO L138 BoogieDeclarations]: Found implementation of procedure configfs_composite_unbind [2021-11-06 17:00:12,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 17:00:12,700 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_dequeue [2021-11-06 17:00:12,700 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_dequeue [2021-11-06 17:00:12,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 17:00:12,700 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 17:00:12,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 17:00:12,700 INFO L130 BoogieDeclarations]: Found specification of procedure composite_dev_cleanup [2021-11-06 17:00:12,701 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_dev_cleanup [2021-11-06 17:00:12,701 INFO L130 BoogieDeclarations]: Found specification of procedure composite_suspend [2021-11-06 17:00:12,701 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_suspend [2021-11-06 17:00:12,701 INFO L130 BoogieDeclarations]: Found specification of procedure purge_configs_funcs [2021-11-06 17:00:12,701 INFO L138 BoogieDeclarations]: Found implementation of procedure purge_configs_funcs [2021-11-06 17:00:12,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 17:00:12,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 17:00:12,702 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_function_instance [2021-11-06 17:00:12,702 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_function_instance [2021-11-06 17:00:12,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 17:00:12,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 17:00:12,703 INFO L130 BoogieDeclarations]: Found specification of procedure reset_config [2021-11-06 17:00:12,703 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_config [2021-11-06 17:00:12,703 INFO L130 BoogieDeclarations]: Found specification of procedure usb_add_function [2021-11-06 17:00:12,703 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_add_function [2021-11-06 17:00:12,703 INFO L130 BoogieDeclarations]: Found specification of procedure __composite_unbind [2021-11-06 17:00:12,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __composite_unbind [2021-11-06 17:00:12,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 17:00:12,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 17:00:12,704 INFO L130 BoogieDeclarations]: Found specification of procedure config_usb_cfg_unlink [2021-11-06 17:00:12,704 INFO L138 BoogieDeclarations]: Found implementation of procedure config_usb_cfg_unlink [2021-11-06 17:00:12,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 17:00:12,705 INFO L130 BoogieDeclarations]: Found specification of procedure composite_setup [2021-11-06 17:00:12,705 INFO L138 BoogieDeclarations]: Found implementation of procedure composite_setup [2021-11-06 17:00:12,705 INFO L130 BoogieDeclarations]: Found specification of procedure set_config [2021-11-06 17:00:12,705 INFO L138 BoogieDeclarations]: Found implementation of procedure set_config [2021-11-06 17:00:12,706 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_function [2021-11-06 17:00:12,706 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_function [2021-11-06 17:00:12,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 17:00:12,707 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2021-11-06 17:00:12,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2021-11-06 17:00:12,708 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-06 17:00:12,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-06 17:00:12,708 INFO L130 BoogieDeclarations]: Found specification of procedure remove_config [2021-11-06 17:00:12,708 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_config [2021-11-06 17:00:12,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 17:00:12,708 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-06 17:00:12,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-06 17:01:00,315 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 17:01:00,315 INFO L299 CfgBuilder]: Removed 8398 assume(true) statements. [2021-11-06 17:01:00,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 05:01:00 BoogieIcfgContainer [2021-11-06 17:01:00,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 17:01:00,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 17:01:00,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 17:01:00,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 17:01:00,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 05:00:05" (1/3) ... [2021-11-06 17:01:00,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502764bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 05:01:00, skipping insertion in model container [2021-11-06 17:01:00,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:00:09" (2/3) ... [2021-11-06 17:01:00,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502764bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 05:01:00, skipping insertion in model container [2021-11-06 17:01:00,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 05:01:00" (3/3) ... [2021-11-06 17:01:00,336 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--gadget--libcomposite.ko-entry_point.cil.out.i [2021-11-06 17:01:00,339 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 17:01:00,340 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 292 error locations. [2021-11-06 17:01:00,407 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 17:01:00,411 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 [2021-11-06 17:01:00,412 INFO L340 AbstractCegarLoop]: Starting to check reachability of 292 error locations. [2021-11-06 17:01:00,566 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) [2021-11-06 17:01:00,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2021-11-06 17:01:00,597 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:01:00,598 INFO L513 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] [2021-11-06 17:01:00,599 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)] === [2021-11-06 17:01:00,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:01:00,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1839370102, now seen corresponding path program 1 times [2021-11-06 17:01:00,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:01:00,614 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087419387] [2021-11-06 17:01:00,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:01:00,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:01:01,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:01:01,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:01:01,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:01:01,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087419387] [2021-11-06 17:01:01,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087419387] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:01:01,695 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:01:01,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 17:01:01,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289460821] [2021-11-06 17:01:01,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 17:01:01,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:01:01,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 17:01:01,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 17:01:01,757 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) [2021-11-06 17:01:02,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:01:02,125 INFO L93 Difference]: Finished difference Result 26114 states and 37224 transitions. [2021-11-06 17:01:02,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 17:01:02,127 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 [2021-11-06 17:01:02,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:01:02,205 INFO L225 Difference]: With dead ends: 26114 [2021-11-06 17:01:02,205 INFO L226 Difference]: Without dead ends: 13013 [2021-11-06 17:01:02,253 INFO L786 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 [2021-11-06 17:01:02,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13013 states. [2021-11-06 17:01:02,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13013 to 13013. [2021-11-06 17:01:02,618 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) [2021-11-06 17:01:02,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13013 states to 13013 states and 17859 transitions. [2021-11-06 17:01:02,673 INFO L78 Accepts]: Start accepts. Automaton has 13013 states and 17859 transitions. Word has length 398 [2021-11-06 17:01:02,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:01:02,676 INFO L470 AbstractCegarLoop]: Abstraction has 13013 states and 17859 transitions. [2021-11-06 17:01:02,676 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) [2021-11-06 17:01:02,677 INFO L276 IsEmpty]: Start isEmpty. Operand 13013 states and 17859 transitions. [2021-11-06 17:01:02,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2021-11-06 17:01:02,691 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:01:02,691 INFO L513 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] [2021-11-06 17:01:02,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 17:01:02,693 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)] === [2021-11-06 17:01:02,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:01:02,695 INFO L85 PathProgramCache]: Analyzing trace with hash 297886088, now seen corresponding path program 1 times [2021-11-06 17:01:02,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:01:02,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284970432] [2021-11-06 17:01:02,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:01:02,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:01:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:01:03,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:01:03,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:01:03,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284970432] [2021-11-06 17:01:03,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284970432] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:01:03,860 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:01:03,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:01:03,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65329125] [2021-11-06 17:01:03,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:01:03,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:01:03,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:01:03,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:01:03,865 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) [2021-11-06 17:01:04,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:01:04,549 INFO L93 Difference]: Finished difference Result 37459 states and 51681 transitions. [2021-11-06 17:01:04,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:01:04,550 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 [2021-11-06 17:01:04,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:01:04,657 INFO L225 Difference]: With dead ends: 37459 [2021-11-06 17:01:04,657 INFO L226 Difference]: Without dead ends: 24824 [2021-11-06 17:01:04,705 INFO L786 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 [2021-11-06 17:01:04,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24824 states. [2021-11-06 17:01:05,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24824 to 24109. [2021-11-06 17:01:05,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24109 states, 23561 states have (on average 1.4161962565256143) internal successors, (33367), 23880 states have internal predecessors, (33367), 200 states have call successors, (200), 56 states have call predecessors, (200), 56 states have return successors, (200), 188 states have call predecessors, (200), 200 states have call successors, (200) [2021-11-06 17:01:05,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24109 states to 24109 states and 33767 transitions. [2021-11-06 17:01:05,591 INFO L78 Accepts]: Start accepts. Automaton has 24109 states and 33767 transitions. Word has length 398 [2021-11-06 17:01:05,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:01:05,593 INFO L470 AbstractCegarLoop]: Abstraction has 24109 states and 33767 transitions. [2021-11-06 17:01:05,594 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) [2021-11-06 17:01:05,594 INFO L276 IsEmpty]: Start isEmpty. Operand 24109 states and 33767 transitions. [2021-11-06 17:01:05,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2021-11-06 17:01:05,601 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:01:05,601 INFO L513 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] [2021-11-06 17:01:05,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 17:01:05,602 INFO L402 AbstractCegarLoop]: === Iteration 3 === 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)] === [2021-11-06 17:01:05,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:01:05,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1699315719, now seen corresponding path program 1 times [2021-11-06 17:01:05,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:01:05,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479037027] [2021-11-06 17:01:05,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:01:05,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:01:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:01:06,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:01:06,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:01:06,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479037027] [2021-11-06 17:01:06,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479037027] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:01:06,641 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:01:06,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:01:06,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911049039] [2021-11-06 17:01:06,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:01:06,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:01:06,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:01:06,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:01:06,644 INFO L87 Difference]: Start difference. First operand 24109 states and 33767 transitions. Second operand has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 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) [2021-11-06 17:01:07,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:01:07,585 INFO L93 Difference]: Finished difference Result 69805 states and 98103 transitions. [2021-11-06 17:01:07,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:01:07,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 400 [2021-11-06 17:01:07,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:01:07,728 INFO L225 Difference]: With dead ends: 69805 [2021-11-06 17:01:07,729 INFO L226 Difference]: Without dead ends: 46074 [2021-11-06 17:01:07,793 INFO L786 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 [2021-11-06 17:01:07,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46074 states. [2021-11-06 17:01:08,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46074 to 45380. [2021-11-06 17:01:08,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45380 states, 44588 states have (on average 1.4246209742531624) internal successors, (63521), 44935 states have internal predecessors, (63521), 388 states have call successors, (388), 112 states have call predecessors, (388), 112 states have return successors, (388), 364 states have call predecessors, (388), 388 states have call successors, (388) [2021-11-06 17:01:08,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45380 states to 45380 states and 64297 transitions. [2021-11-06 17:01:08,973 INFO L78 Accepts]: Start accepts. Automaton has 45380 states and 64297 transitions. Word has length 400 [2021-11-06 17:01:08,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:01:08,974 INFO L470 AbstractCegarLoop]: Abstraction has 45380 states and 64297 transitions. [2021-11-06 17:01:08,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 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) [2021-11-06 17:01:08,974 INFO L276 IsEmpty]: Start isEmpty. Operand 45380 states and 64297 transitions. [2021-11-06 17:01:08,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2021-11-06 17:01:08,981 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:01:08,981 INFO L513 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] [2021-11-06 17:01:08,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 17:01:08,981 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_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)] === [2021-11-06 17:01:08,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:01:08,983 INFO L85 PathProgramCache]: Analyzing trace with hash -653174918, now seen corresponding path program 1 times [2021-11-06 17:01:08,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:01:08,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347015433] [2021-11-06 17:01:08,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:01:08,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:01:09,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:01:10,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:01:10,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:01:10,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347015433] [2021-11-06 17:01:10,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347015433] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:01:10,009 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:01:10,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:01:10,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814091312] [2021-11-06 17:01:10,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:01:10,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:01:10,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:01:10,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:01:10,012 INFO L87 Difference]: Start difference. First operand 45380 states and 64297 transitions. Second operand has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 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) [2021-11-06 17:01:11,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:01:11,489 INFO L93 Difference]: Finished difference Result 132314 states and 187853 transitions. [2021-11-06 17:01:11,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:01:11,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 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 400 [2021-11-06 17:01:11,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:01:12,026 INFO L225 Difference]: With dead ends: 132314 [2021-11-06 17:01:12,026 INFO L226 Difference]: Without dead ends: 87312 [2021-11-06 17:01:12,124 INFO L786 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 [2021-11-06 17:01:12,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87312 states. [2021-11-06 17:01:13,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87312 to 86588. [2021-11-06 17:01:13,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86588 states, 85304 states have (on average 1.4296281534277409) internal successors, (121953), 85707 states have internal predecessors, (121953), 768 states have call successors, (768), 224 states have call predecessors, (768), 224 states have return successors, (768), 720 states have call predecessors, (768), 768 states have call successors, (768) [2021-11-06 17:01:14,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86588 states to 86588 states and 123489 transitions. [2021-11-06 17:01:14,177 INFO L78 Accepts]: Start accepts. Automaton has 86588 states and 123489 transitions. Word has length 400 [2021-11-06 17:01:14,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:01:14,184 INFO L470 AbstractCegarLoop]: Abstraction has 86588 states and 123489 transitions. [2021-11-06 17:01:14,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 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) [2021-11-06 17:01:14,185 INFO L276 IsEmpty]: Start isEmpty. Operand 86588 states and 123489 transitions. [2021-11-06 17:01:14,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2021-11-06 17:01:14,192 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:01:14,192 INFO L513 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] [2021-11-06 17:01:14,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 17:01:14,193 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr140ASSERT_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)] === [2021-11-06 17:01:14,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:01:14,194 INFO L85 PathProgramCache]: Analyzing trace with hash -249054182, now seen corresponding path program 1 times [2021-11-06 17:01:14,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:01:14,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778930454] [2021-11-06 17:01:14,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:01:14,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:01:14,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:01:15,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:01:15,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:01:15,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778930454] [2021-11-06 17:01:15,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778930454] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:01:15,322 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:01:15,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:01:15,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669390224] [2021-11-06 17:01:15,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:01:15,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:01:15,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:01:15,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:01:15,324 INFO L87 Difference]: Start difference. First operand 86588 states and 123489 transitions. Second operand has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 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) [2021-11-06 17:01:17,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:01:17,602 INFO L93 Difference]: Finished difference Result 258537 states and 369049 transitions. [2021-11-06 17:01:17,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:01:17,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 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 404 [2021-11-06 17:01:17,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:01:18,234 INFO L225 Difference]: With dead ends: 258537 [2021-11-06 17:01:18,234 INFO L226 Difference]: Without dead ends: 172327 [2021-11-06 17:01:18,487 INFO L786 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 [2021-11-06 17:01:18,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172327 states. [2021-11-06 17:01:21,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172327 to 171612. [2021-11-06 17:01:21,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171612 states, 169336 states have (on average 1.4318101289743468) internal successors, (242457), 169851 states have internal predecessors, (242457), 1536 states have call successors, (1536), 448 states have call predecessors, (1536), 448 states have return successors, (1536), 1440 states have call predecessors, (1536), 1536 states have call successors, (1536) [2021-11-06 17:01:22,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171612 states to 171612 states and 245529 transitions. [2021-11-06 17:01:22,546 INFO L78 Accepts]: Start accepts. Automaton has 171612 states and 245529 transitions. Word has length 404 [2021-11-06 17:01:22,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:01:22,547 INFO L470 AbstractCegarLoop]: Abstraction has 171612 states and 245529 transitions. [2021-11-06 17:01:22,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 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) [2021-11-06 17:01:22,548 INFO L276 IsEmpty]: Start isEmpty. Operand 171612 states and 245529 transitions. [2021-11-06 17:01:22,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2021-11-06 17:01:22,562 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:01:22,562 INFO L513 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] [2021-11-06 17:01:22,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 17:01:22,563 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr143ASSERT_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)] === [2021-11-06 17:01:22,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:01:22,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1480406344, now seen corresponding path program 1 times [2021-11-06 17:01:22,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:01:22,564 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484344910] [2021-11-06 17:01:22,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:01:22,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:01:22,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:01:23,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:01:23,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:01:23,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484344910] [2021-11-06 17:01:23,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484344910] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:01:23,360 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:01:23,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:01:23,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833822382] [2021-11-06 17:01:23,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:01:23,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:01:23,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:01:23,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:01:23,362 INFO L87 Difference]: Start difference. First operand 171612 states and 245529 transitions. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 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) [2021-11-06 17:01:27,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:01:27,469 INFO L93 Difference]: Finished difference Result 500503 states and 716910 transitions. [2021-11-06 17:01:27,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:01:27,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 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 407 [2021-11-06 17:01:27,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:01:28,879 INFO L225 Difference]: With dead ends: 500503 [2021-11-06 17:01:28,880 INFO L226 Difference]: Without dead ends: 329269 [2021-11-06 17:01:29,154 INFO L786 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 [2021-11-06 17:01:29,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329269 states. [2021-11-06 17:01:34,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329269 to 328660. [2021-11-06 17:01:34,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328660 states, 324432 states have (on average 1.4342882329733195) internal successors, (465329), 325171 states have internal predecessors, (465329), 3040 states have call successors, (3040), 896 states have call predecessors, (3040), 896 states have return successors, (3040), 2848 states have call predecessors, (3040), 3040 states have call successors, (3040) [2021-11-06 17:01:36,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328660 states to 328660 states and 471409 transitions. [2021-11-06 17:01:36,258 INFO L78 Accepts]: Start accepts. Automaton has 328660 states and 471409 transitions. Word has length 407 [2021-11-06 17:01:36,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:01:36,259 INFO L470 AbstractCegarLoop]: Abstraction has 328660 states and 471409 transitions. [2021-11-06 17:01:36,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 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) [2021-11-06 17:01:36,260 INFO L276 IsEmpty]: Start isEmpty. Operand 328660 states and 471409 transitions. [2021-11-06 17:01:36,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2021-11-06 17:01:36,268 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:01:36,268 INFO L513 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] [2021-11-06 17:01:36,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 17:01:36,268 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr262ASSERT_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)] === [2021-11-06 17:01:36,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:01:36,269 INFO L85 PathProgramCache]: Analyzing trace with hash -201877315, now seen corresponding path program 1 times [2021-11-06 17:01:36,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:01:36,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476086230] [2021-11-06 17:01:36,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:01:36,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:01:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:01:36,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:01:36,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:01:36,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476086230] [2021-11-06 17:01:36,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476086230] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:01:36,996 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:01:36,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:01:36,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089576196] [2021-11-06 17:01:36,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:01:36,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:01:36,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:01:36,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:01:36,999 INFO L87 Difference]: Start difference. First operand 328660 states and 471409 transitions. Second operand has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 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)