./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rt2x00-rt2500usb.cil.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-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rt2x00-rt2500usb.cil.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 2780fc0b078cd95366c58e63c05c4168e73cfd193d5f7dd189d6eaa3d38deb42 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 18:44:34,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 18:44:34,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 18:44:34,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 18:44:34,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 18:44:34,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 18:44:34,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 18:44:34,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 18:44:34,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 18:44:34,921 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 18:44:34,922 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 18:44:34,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 18:44:34,924 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 18:44:34,925 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 18:44:34,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 18:44:34,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 18:44:34,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 18:44:34,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 18:44:34,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 18:44:34,932 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 18:44:34,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 18:44:34,935 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 18:44:34,936 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 18:44:34,937 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 18:44:34,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 18:44:34,939 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 18:44:34,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 18:44:34,940 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 18:44:34,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 18:44:34,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 18:44:34,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 18:44:34,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 18:44:34,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 18:44:34,944 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 18:44:34,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 18:44:34,946 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 18:44:34,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 18:44:34,947 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 18:44:34,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 18:44:34,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 18:44:34,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 18:44:34,949 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 18:44:34,968 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 18:44:34,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 18:44:34,968 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 18:44:34,969 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 18:44:34,970 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 18:44:34,970 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 18:44:34,970 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 18:44:34,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 18:44:34,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 18:44:34,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 18:44:34,971 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 18:44:34,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 18:44:34,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 18:44:34,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 18:44:34,972 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 18:44:34,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 18:44:34,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 18:44:34,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 18:44:34,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 18:44:34,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:44:34,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 18:44:34,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 18:44:34,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 18:44:34,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 18:44:34,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 18:44:34,975 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 18:44:34,975 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 18:44:34,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 18:44:34,975 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 18:44:34,976 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2780fc0b078cd95366c58e63c05c4168e73cfd193d5f7dd189d6eaa3d38deb42 [2021-11-06 18:44:35,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 18:44:35,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 18:44:35,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 18:44:35,238 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 18:44:35,239 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 18:44:35,240 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rt2x00-rt2500usb.cil.i [2021-11-06 18:44:35,294 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0c4ac771/72b9e3109a3f4994bba1600c017cd650/FLAG76825d21d [2021-11-06 18:44:36,171 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 18:44:36,172 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rt2x00-rt2500usb.cil.i [2021-11-06 18:44:36,290 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0c4ac771/72b9e3109a3f4994bba1600c017cd650/FLAG76825d21d [2021-11-06 18:44:36,576 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0c4ac771/72b9e3109a3f4994bba1600c017cd650 [2021-11-06 18:44:36,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 18:44:36,578 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 18:44:36,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 18:44:36,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 18:44:36,585 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 18:44:36,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:44:36" (1/1) ... [2021-11-06 18:44:36,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75606703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:44:36, skipping insertion in model container [2021-11-06 18:44:36,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:44:36" (1/1) ... [2021-11-06 18:44:36,592 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 18:44:36,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 18:44:40,616 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rt2x00-rt2500usb.cil.i[595361,595374] [2021-11-06 18:44:40,619 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rt2x00-rt2500usb.cil.i[595527,595540] [2021-11-06 18:44:40,619 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rt2x00-rt2500usb.cil.i[595691,595704] [2021-11-06 18:44:40,620 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rt2x00-rt2500usb.cil.i[595856,595869] [2021-11-06 18:44:40,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:44:40,720 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 18:44:41,190 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rt2x00-rt2500usb.cil.i[595361,595374] [2021-11-06 18:44:41,191 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rt2x00-rt2500usb.cil.i[595527,595540] [2021-11-06 18:44:41,192 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rt2x00-rt2500usb.cil.i[595691,595704] [2021-11-06 18:44:41,192 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rt2x00-rt2500usb.cil.i[595856,595869] [2021-11-06 18:44:41,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:44:41,497 INFO L208 MainTranslator]: Completed translation [2021-11-06 18:44:41,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:44:41 WrapperNode [2021-11-06 18:44:41,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 18:44:41,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 18:44:41,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 18:44:41,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 18:44:41,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:44:41" (1/1) ... [2021-11-06 18:44:41,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:44:41" (1/1) ... [2021-11-06 18:44:43,192 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 18:44:43,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 18:44:43,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 18:44:43,207 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 18:44:43,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:44:41" (1/1) ... [2021-11-06 18:44:43,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:44:41" (1/1) ... [2021-11-06 18:44:43,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:44:41" (1/1) ... [2021-11-06 18:44:43,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:44:41" (1/1) ... [2021-11-06 18:44:44,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:44:41" (1/1) ... [2021-11-06 18:44:45,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:44:41" (1/1) ... [2021-11-06 18:44:45,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:44:41" (1/1) ... [2021-11-06 18:44:45,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 18:44:45,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 18:44:45,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 18:44:45,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 18:44:45,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:44:41" (1/1) ... [2021-11-06 18:44:45,793 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:44:45,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 18:44:45,857 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 18:44:45,921 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 18:44:45,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 18:44:45,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 18:44:45,955 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-06 18:44:45,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-06 18:44:45,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 18:44:45,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 18:44:45,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 18:44:45,956 INFO L130 BoogieDeclarations]: Found specification of procedure rt2500usb_set_device_state [2021-11-06 18:44:45,956 INFO L138 BoogieDeclarations]: Found implementation of procedure rt2500usb_set_device_state [2021-11-06 18:44:45,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 18:44:45,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 18:44:45,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 18:44:45,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 18:44:45,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 18:44:45,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 18:44:45,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 18:44:45,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 18:44:45,957 INFO L130 BoogieDeclarations]: Found specification of procedure rt2500usb_init_registers [2021-11-06 18:44:45,957 INFO L138 BoogieDeclarations]: Found implementation of procedure rt2500usb_init_registers [2021-11-06 18:44:45,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 18:44:45,957 INFO L130 BoogieDeclarations]: Found specification of procedure rt2500usb_enable_radio [2021-11-06 18:44:45,958 INFO L138 BoogieDeclarations]: Found implementation of procedure rt2500usb_enable_radio [2021-11-06 18:44:45,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 18:45:53,367 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 18:45:53,367 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-06 18:45:53,367 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-06 18:45:53,368 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res := 0; [2021-11-06 18:45:53,368 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res := 0; [2021-11-06 18:45:53,368 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 18:45:53,369 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 18:45:53,370 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 18:45:53,410 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 18:45:53,411 INFO L299 CfgBuilder]: Removed 10683 assume(true) statements. [2021-11-06 18:45:53,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:45:53 BoogieIcfgContainer [2021-11-06 18:45:53,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 18:45:53,421 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 18:45:53,421 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 18:45:53,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 18:45:53,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 06:44:36" (1/3) ... [2021-11-06 18:45:53,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@533d1228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:45:53, skipping insertion in model container [2021-11-06 18:45:53,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:44:41" (2/3) ... [2021-11-06 18:45:53,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@533d1228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:45:53, skipping insertion in model container [2021-11-06 18:45:53,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:45:53" (3/3) ... [2021-11-06 18:45:53,426 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rt2x00-rt2500usb.cil.i [2021-11-06 18:45:53,430 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 18:45:53,430 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 156 error locations. [2021-11-06 18:45:53,500 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 18:45:53,505 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 18:45:53,505 INFO L340 AbstractCegarLoop]: Starting to check reachability of 156 error locations. [2021-11-06 18:45:53,802 INFO L276 IsEmpty]: Start isEmpty. Operand has 10602 states, 10434 states have (on average 1.4123059229442207) internal successors, (14736), 10589 states have internal predecessors, (14736), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-06 18:45:53,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-11-06 18:45:53,822 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:45:53,823 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] [2021-11-06 18:45:53,827 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [rt2500usb_enable_radioErr0ASSERT_VIOLATIONERROR_FUNCTION, rt2500usb_enable_radioErr1ASSERT_VIOLATIONERROR_FUNCTION, rt2500usb_enable_radioErr2ASSERT_VIOLATIONERROR_FUNCTION (and 153 more)] === [2021-11-06 18:45:53,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:45:53,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1921148247, now seen corresponding path program 1 times [2021-11-06 18:45:53,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:45:53,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104746967] [2021-11-06 18:45:53,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:45:53,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:45:54,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:45:54,747 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 18:45:54,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:45:54,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104746967] [2021-11-06 18:45:54,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104746967] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:45:54,752 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:45:54,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:45:54,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774402937] [2021-11-06 18:45:54,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:45:54,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:45:54,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:45:54,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:45:54,799 INFO L87 Difference]: Start difference. First operand has 10602 states, 10434 states have (on average 1.4123059229442207) internal successors, (14736), 10589 states have internal predecessors, (14736), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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 18:45:57,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:45:57,769 INFO L93 Difference]: Finished difference Result 30441 states and 42507 transitions. [2021-11-06 18:45:57,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:45:57,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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 204 [2021-11-06 18:45:57,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:45:57,875 INFO L225 Difference]: With dead ends: 30441 [2021-11-06 18:45:57,875 INFO L226 Difference]: Without dead ends: 20161 [2021-11-06 18:45:57,915 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 18:45:57,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20161 states. [2021-11-06 18:45:58,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20161 to 19873. [2021-11-06 18:45:58,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19873 states, 19693 states have (on average 1.3904433047275682) internal successors, (27382), 19848 states have internal predecessors, (27382), 16 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-06 18:45:58,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19873 states to 19873 states and 27414 transitions. [2021-11-06 18:45:58,784 INFO L78 Accepts]: Start accepts. Automaton has 19873 states and 27414 transitions. Word has length 204 [2021-11-06 18:45:58,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:45:58,789 INFO L470 AbstractCegarLoop]: Abstraction has 19873 states and 27414 transitions. [2021-11-06 18:45:58,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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 18:45:58,790 INFO L276 IsEmpty]: Start isEmpty. Operand 19873 states and 27414 transitions. [2021-11-06 18:45:58,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-11-06 18:45:58,796 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:45:58,797 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] [2021-11-06 18:45:58,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 18:45:58,798 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [rt2500usb_enable_radioErr0ASSERT_VIOLATIONERROR_FUNCTION, rt2500usb_enable_radioErr1ASSERT_VIOLATIONERROR_FUNCTION, rt2500usb_enable_radioErr2ASSERT_VIOLATIONERROR_FUNCTION (and 153 more)] === [2021-11-06 18:45:58,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:45:58,801 INFO L85 PathProgramCache]: Analyzing trace with hash -643378217, now seen corresponding path program 1 times [2021-11-06 18:45:58,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:45:58,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920286842] [2021-11-06 18:45:58,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:45:58,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:45:59,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:45:59,264 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 18:45:59,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:45:59,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920286842] [2021-11-06 18:45:59,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920286842] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:45:59,265 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:45:59,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:45:59,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821248084] [2021-11-06 18:45:59,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:45:59,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:45:59,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:45:59,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:45:59,270 INFO L87 Difference]: Start difference. First operand 19873 states and 27414 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 18:46:02,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:46:02,473 INFO L93 Difference]: Finished difference Result 42153 states and 58106 transitions. [2021-11-06 18:46:02,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:46:02,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 221 [2021-11-06 18:46:02,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:46:02,545 INFO L225 Difference]: With dead ends: 42153 [2021-11-06 18:46:02,546 INFO L226 Difference]: Without dead ends: 22780 [2021-11-06 18:46:02,583 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 18:46:02,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22780 states. [2021-11-06 18:46:03,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22780 to 22500. [2021-11-06 18:46:03,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22500 states, 22312 states have (on average 1.3901487988526353) internal successors, (31017), 22467 states have internal predecessors, (31017), 20 states have call successors, (20), 12 states have call predecessors, (20), 12 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-06 18:46:03,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22500 states to 22500 states and 31057 transitions. [2021-11-06 18:46:03,229 INFO L78 Accepts]: Start accepts. Automaton has 22500 states and 31057 transitions. Word has length 221 [2021-11-06 18:46:03,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:46:03,230 INFO L470 AbstractCegarLoop]: Abstraction has 22500 states and 31057 transitions. [2021-11-06 18:46:03,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 18:46:03,231 INFO L276 IsEmpty]: Start isEmpty. Operand 22500 states and 31057 transitions. [2021-11-06 18:46:03,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-11-06 18:46:03,235 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:46:03,235 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] [2021-11-06 18:46:03,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 18:46:03,235 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONERROR_FUNCTION === [rt2500usb_enable_radioErr0ASSERT_VIOLATIONERROR_FUNCTION, rt2500usb_enable_radioErr1ASSERT_VIOLATIONERROR_FUNCTION, rt2500usb_enable_radioErr2ASSERT_VIOLATIONERROR_FUNCTION (and 153 more)] === [2021-11-06 18:46:03,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:46:03,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1231122208, now seen corresponding path program 1 times [2021-11-06 18:46:03,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:46:03,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540381021] [2021-11-06 18:46:03,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:46:03,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:46:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:46:03,614 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 18:46:03,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:46:03,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540381021] [2021-11-06 18:46:03,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540381021] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:46:03,616 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:46:03,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:46:03,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57587612] [2021-11-06 18:46:03,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:46:03,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:46:03,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:46:03,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:46:03,618 INFO L87 Difference]: Start difference. First operand 22500 states and 31057 transitions. Second operand has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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 18:46:06,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:46:06,636 INFO L93 Difference]: Finished difference Result 46799 states and 64558 transitions. [2021-11-06 18:46:06,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:46:06,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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 222 [2021-11-06 18:46:06,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:46:06,709 INFO L225 Difference]: With dead ends: 46799 [2021-11-06 18:46:06,709 INFO L226 Difference]: Without dead ends: 24799 [2021-11-06 18:46:06,762 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 18:46:06,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24799 states. [2021-11-06 18:46:07,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24799 to 24513. [2021-11-06 18:46:07,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24513 states, 24325 states have (on average 1.3898869475847893) internal successors, (33809), 24480 states have internal predecessors, (33809), 20 states have call successors, (20), 12 states have call predecessors, (20), 12 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-06 18:46:07,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24513 states to 24513 states and 33849 transitions. [2021-11-06 18:46:07,364 INFO L78 Accepts]: Start accepts. Automaton has 24513 states and 33849 transitions. Word has length 222 [2021-11-06 18:46:07,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:46:07,365 INFO L470 AbstractCegarLoop]: Abstraction has 24513 states and 33849 transitions. [2021-11-06 18:46:07,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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 18:46:07,366 INFO L276 IsEmpty]: Start isEmpty. Operand 24513 states and 33849 transitions. [2021-11-06 18:46:07,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-06 18:46:07,369 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:46:07,370 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:46:07,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 18:46:07,370 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [rt2500usb_enable_radioErr0ASSERT_VIOLATIONERROR_FUNCTION, rt2500usb_enable_radioErr1ASSERT_VIOLATIONERROR_FUNCTION, rt2500usb_enable_radioErr2ASSERT_VIOLATIONERROR_FUNCTION (and 153 more)] === [2021-11-06 18:46:07,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:46:07,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1729715430, now seen corresponding path program 1 times [2021-11-06 18:46:07,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:46:07,371 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394744426] [2021-11-06 18:46:07,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:46:07,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:46:07,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:46:07,881 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:46:07,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:46:07,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394744426] [2021-11-06 18:46:07,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394744426] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:46:07,882 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:46:07,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:46:07,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095853007] [2021-11-06 18:46:07,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:46:07,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:46:07,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:46:07,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:46:07,886 INFO L87 Difference]: Start difference. First operand 24513 states and 33849 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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 18:46:10,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:46:10,982 INFO L93 Difference]: Finished difference Result 70443 states and 97576 transitions. [2021-11-06 18:46:10,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:46:10,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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 234 [2021-11-06 18:46:10,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:46:11,103 INFO L225 Difference]: With dead ends: 70443 [2021-11-06 18:46:11,103 INFO L226 Difference]: Without dead ends: 47382 [2021-11-06 18:46:11,146 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 18:46:11,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47382 states. [2021-11-06 18:46:12,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47382 to 47073. [2021-11-06 18:46:12,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47073 states, 46853 states have (on average 1.394595863658677) internal successors, (65341), 47008 states have internal predecessors, (65341), 40 states have call successors, (40), 24 states have call predecessors, (40), 24 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2021-11-06 18:46:12,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47073 states to 47073 states and 65421 transitions. [2021-11-06 18:46:12,360 INFO L78 Accepts]: Start accepts. Automaton has 47073 states and 65421 transitions. Word has length 234 [2021-11-06 18:46:12,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:46:12,361 INFO L470 AbstractCegarLoop]: Abstraction has 47073 states and 65421 transitions. [2021-11-06 18:46:12,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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 18:46:12,362 INFO L276 IsEmpty]: Start isEmpty. Operand 47073 states and 65421 transitions. [2021-11-06 18:46:12,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-06 18:46:12,365 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:46:12,366 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:46:12,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 18:46:12,366 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [rt2500usb_enable_radioErr0ASSERT_VIOLATIONERROR_FUNCTION, rt2500usb_enable_radioErr1ASSERT_VIOLATIONERROR_FUNCTION, rt2500usb_enable_radioErr2ASSERT_VIOLATIONERROR_FUNCTION (and 153 more)] === [2021-11-06 18:46:12,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:46:12,367 INFO L85 PathProgramCache]: Analyzing trace with hash -449851752, now seen corresponding path program 1 times [2021-11-06 18:46:12,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:46:12,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453100771] [2021-11-06 18:46:12,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:46:12,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:46:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:46:12,683 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:46:12,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:46:12,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453100771] [2021-11-06 18:46:12,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453100771] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:46:12,684 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:46:12,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:46:12,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105027493] [2021-11-06 18:46:12,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:46:12,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:46:12,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:46:12,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:46:12,686 INFO L87 Difference]: Start difference. First operand 47073 states and 65421 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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 18:46:15,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:46:15,879 INFO L93 Difference]: Finished difference Result 115559 states and 160712 transitions. [2021-11-06 18:46:15,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:46:15,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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 234 [2021-11-06 18:46:15,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:46:16,094 INFO L225 Difference]: With dead ends: 115559 [2021-11-06 18:46:16,097 INFO L226 Difference]: Without dead ends: 69938 [2021-11-06 18:46:16,192 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 18:46:16,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69938 states. [2021-11-06 18:46:17,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69938 to 69650. [2021-11-06 18:46:17,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69650 states, 69398 states have (on average 1.3961497449494222) internal successors, (96890), 69553 states have internal predecessors, (96890), 60 states have call successors, (60), 36 states have call predecessors, (60), 36 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2021-11-06 18:46:17,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69650 states to 69650 states and 97010 transitions. [2021-11-06 18:46:17,857 INFO L78 Accepts]: Start accepts. Automaton has 69650 states and 97010 transitions. Word has length 234 [2021-11-06 18:46:17,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:46:17,858 INFO L470 AbstractCegarLoop]: Abstraction has 69650 states and 97010 transitions. [2021-11-06 18:46:17,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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 18:46:17,860 INFO L276 IsEmpty]: Start isEmpty. Operand 69650 states and 97010 transitions. [2021-11-06 18:46:17,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-11-06 18:46:17,864 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:46:17,864 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] [2021-11-06 18:46:17,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 18:46:17,864 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr86ASSERT_VIOLATIONERROR_FUNCTION === [rt2500usb_enable_radioErr0ASSERT_VIOLATIONERROR_FUNCTION, rt2500usb_enable_radioErr1ASSERT_VIOLATIONERROR_FUNCTION, rt2500usb_enable_radioErr2ASSERT_VIOLATIONERROR_FUNCTION (and 153 more)] === [2021-11-06 18:46:17,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:46:17,865 INFO L85 PathProgramCache]: Analyzing trace with hash 857677723, now seen corresponding path program 1 times [2021-11-06 18:46:17,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:46:17,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331717949] [2021-11-06 18:46:17,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:46:17,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:46:18,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:46:18,427 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 18:46:18,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:46:18,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331717949] [2021-11-06 18:46:18,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331717949] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:46:18,428 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:46:18,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:46:18,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081813522] [2021-11-06 18:46:18,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:46:18,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:46:18,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:46:18,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:46:18,432 INFO L87 Difference]: Start difference. First operand 69650 states and 97010 transitions. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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 18:46:22,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:46:22,527 INFO L93 Difference]: Finished difference Result 196424 states and 273834 transitions. [2021-11-06 18:46:22,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:46:22,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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 235 [2021-11-06 18:46:22,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:46:22,853 INFO L225 Difference]: With dead ends: 196424 [2021-11-06 18:46:22,853 INFO L226 Difference]: Without dead ends: 127274 [2021-11-06 18:46:23,000 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 18:46:23,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127274 states. [2021-11-06 18:46:25,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127274 to 126847. [2021-11-06 18:46:25,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126847 states, 126499 states have (on average 1.3971019533751254) internal successors, (176732), 126654 states have internal predecessors, (176732), 120 states have call successors, (120), 72 states have call predecessors, (120), 72 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2021-11-06 18:46:26,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126847 states to 126847 states and 176972 transitions. [2021-11-06 18:46:26,405 INFO L78 Accepts]: Start accepts. Automaton has 126847 states and 176972 transitions. Word has length 235 [2021-11-06 18:46:26,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:46:26,406 INFO L470 AbstractCegarLoop]: Abstraction has 126847 states and 176972 transitions. [2021-11-06 18:46:26,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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 18:46:26,406 INFO L276 IsEmpty]: Start isEmpty. Operand 126847 states and 176972 transitions. [2021-11-06 18:46:26,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-11-06 18:46:26,410 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:46:26,411 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:46:26,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 18:46:26,411 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [rt2500usb_enable_radioErr0ASSERT_VIOLATIONERROR_FUNCTION, rt2500usb_enable_radioErr1ASSERT_VIOLATIONERROR_FUNCTION, rt2500usb_enable_radioErr2ASSERT_VIOLATIONERROR_FUNCTION (and 153 more)] === [2021-11-06 18:46:26,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:46:26,412 INFO L85 PathProgramCache]: Analyzing trace with hash -528659326, now seen corresponding path program 1 times [2021-11-06 18:46:26,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:46:26,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534175968] [2021-11-06 18:46:26,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:46:26,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:46:26,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:46:27,276 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-06 18:46:27,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:46:27,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534175968] [2021-11-06 18:46:27,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534175968] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:46:27,278 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:46:27,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 18:46:27,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903167246] [2021-11-06 18:46:27,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:46:27,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:46:27,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:46:27,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:46:27,280 INFO L87 Difference]: Start difference. First operand 126847 states and 176972 transitions. Second operand has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 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 18:46:32,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:46:32,907 INFO L93 Difference]: Finished difference Result 126847 states and 176972 transitions. [2021-11-06 18:46:32,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 18:46:32,908 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 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 235 [2021-11-06 18:46:32,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:46:33,153 INFO L225 Difference]: With dead ends: 126847 [2021-11-06 18:46:33,154 INFO L226 Difference]: Without dead ends: 126841 [2021-11-06 18:46:33,200 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:46:33,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126841 states. [2021-11-06 18:46:35,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126841 to 126841. [2021-11-06 18:46:35,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126841 states, 126496 states have (on average 1.3970876549456108) internal successors, (176726), 126648 states have internal predecessors, (176726), 120 states have call successors, (120), 72 states have call predecessors, (120), 72 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2021-11-06 18:46:36,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126841 states to 126841 states and 176966 transitions. [2021-11-06 18:46:36,379 INFO L78 Accepts]: Start accepts. Automaton has 126841 states and 176966 transitions. Word has length 235 [2021-11-06 18:46:36,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:46:36,379 INFO L470 AbstractCegarLoop]: Abstraction has 126841 states and 176966 transitions. [2021-11-06 18:46:36,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 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 18:46:36,379 INFO L276 IsEmpty]: Start isEmpty. Operand 126841 states and 176966 transitions. [2021-11-06 18:46:36,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-11-06 18:46:36,383 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:46:36,383 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:46:36,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 18:46:36,384 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [rt2500usb_enable_radioErr0ASSERT_VIOLATIONERROR_FUNCTION, rt2500usb_enable_radioErr1ASSERT_VIOLATIONERROR_FUNCTION, rt2500usb_enable_radioErr2ASSERT_VIOLATIONERROR_FUNCTION (and 153 more)] === [2021-11-06 18:46:36,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:46:36,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1235088091, now seen corresponding path program 1 times [2021-11-06 18:46:36,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:46:36,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049782996] [2021-11-06 18:46:36,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:46:36,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:46:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:46:36,950 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-06 18:46:36,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:46:36,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049782996] [2021-11-06 18:46:36,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049782996] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:46:36,951 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:46:36,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 18:46:36,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78036163] [2021-11-06 18:46:36,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:46:36,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:46:36,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:46:36,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:46:36,953 INFO L87 Difference]: Start difference. First operand 126841 states and 176966 transitions. Second operand has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 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 18:46:39,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:46:39,534 INFO L93 Difference]: Finished difference Result 126841 states and 176966 transitions. [2021-11-06 18:46:39,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 18:46:39,535 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 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 237 [2021-11-06 18:46:39,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:46:39,778 INFO L225 Difference]: With dead ends: 126841 [2021-11-06 18:46:39,778 INFO L226 Difference]: Without dead ends: 126835 [2021-11-06 18:46:39,815 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:46:39,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126835 states.