./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 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/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-wip.dd.seqcomp-5b36d44 [2021-11-07 17:11:05,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 17:11:05,306 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 17:11:05,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 17:11:05,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 17:11:05,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 17:11:05,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 17:11:05,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 17:11:05,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 17:11:05,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 17:11:05,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 17:11:05,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 17:11:05,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 17:11:05,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 17:11:05,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 17:11:05,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 17:11:05,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 17:11:05,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 17:11:05,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 17:11:05,395 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 17:11:05,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 17:11:05,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 17:11:05,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 17:11:05,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 17:11:05,401 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 17:11:05,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 17:11:05,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 17:11:05,407 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 17:11:05,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 17:11:05,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 17:11:05,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 17:11:05,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 17:11:05,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 17:11:05,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 17:11:05,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 17:11:05,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 17:11:05,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 17:11:05,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 17:11:05,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 17:11:05,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 17:11:05,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 17:11:05,416 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 17:11:05,447 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 17:11:05,448 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 17:11:05,448 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 17:11:05,448 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 17:11:05,449 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 17:11:05,450 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 17:11:05,450 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 17:11:05,450 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 17:11:05,450 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 17:11:05,450 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 17:11:05,451 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 17:11:05,451 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 17:11:05,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 17:11:05,452 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 17:11:05,452 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 17:11:05,452 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 17:11:05,452 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 17:11:05,452 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 17:11:05,453 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 17:11:05,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 17:11:05,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 17:11:05,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 17:11:05,453 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 17:11:05,453 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 17:11:05,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 17:11:05,454 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 17:11:05,454 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 17:11:05,454 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 17:11:05,454 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 17:11:05,455 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2780fc0b078cd95366c58e63c05c4168e73cfd193d5f7dd189d6eaa3d38deb42 [2021-11-07 17:11:05,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 17:11:05,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 17:11:05,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 17:11:05,722 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 17:11:05,723 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 17:11:05,724 INFO L432 ainManager$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 [2021-11-07 17:11:05,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1646be61/02b8a5a88a474d05b7b18a25113066d4/FLAGfe7622032 [2021-11-07 17:11:06,707 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 17:11:06,707 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 [2021-11-07 17:11:06,777 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1646be61/02b8a5a88a474d05b7b18a25113066d4/FLAGfe7622032 [2021-11-07 17:11:06,789 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1646be61/02b8a5a88a474d05b7b18a25113066d4 [2021-11-07 17:11:06,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 17:11:06,791 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 17:11:06,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 17:11:06,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 17:11:06,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 17:11:06,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:11:06" (1/1) ... [2021-11-07 17:11:06,798 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21f3a67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:06, skipping insertion in model container [2021-11-07 17:11:06,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:11:06" (1/1) ... [2021-11-07 17:11:06,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 17:11:06,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 17:11:11,244 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] [2021-11-07 17:11:11,247 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] [2021-11-07 17:11:11,248 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] [2021-11-07 17:11:11,248 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] [2021-11-07 17:11:11,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 17:11:11,348 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 17:11:11,754 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] [2021-11-07 17:11:11,755 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] [2021-11-07 17:11:11,755 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] [2021-11-07 17:11:11,756 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] [2021-11-07 17:11:11,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 17:11:11,992 INFO L208 MainTranslator]: Completed translation [2021-11-07 17:11:11,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:11 WrapperNode [2021-11-07 17:11:11,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 17:11:11,994 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 17:11:11,994 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 17:11:11,994 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 17:11:12,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:11" (1/1) ... [2021-11-07 17:11:12,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:11" (1/1) ... [2021-11-07 17:11:13,810 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 17:11:13,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 17:11:13,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 17:11:13,812 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 17:11:13,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:11" (1/1) ... [2021-11-07 17:11:13,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:11" (1/1) ... [2021-11-07 17:11:14,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:11" (1/1) ... [2021-11-07 17:11:14,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:11" (1/1) ... [2021-11-07 17:11:15,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:11" (1/1) ... [2021-11-07 17:11:15,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:11" (1/1) ... [2021-11-07 17:11:15,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:11" (1/1) ... [2021-11-07 17:11:15,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 17:11:15,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 17:11:15,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 17:11:15,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 17:11:15,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:11" (1/1) ... [2021-11-07 17:11:15,738 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 17:11:15,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 17:11:15,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 17:11:15,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 17:11:15,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 17:11:15,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 17:11:15,809 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-07 17:11:15,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-07 17:11:15,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 17:11:15,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 17:11:15,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 17:11:15,810 INFO L130 BoogieDeclarations]: Found specification of procedure rt2500usb_set_device_state [2021-11-07 17:11:15,810 INFO L138 BoogieDeclarations]: Found implementation of procedure rt2500usb_set_device_state [2021-11-07 17:11:15,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 17:11:15,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 17:11:15,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 17:11:15,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 17:11:15,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 17:11:15,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 17:11:15,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 17:11:15,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 17:11:15,811 INFO L130 BoogieDeclarations]: Found specification of procedure rt2500usb_init_registers [2021-11-07 17:11:15,811 INFO L138 BoogieDeclarations]: Found implementation of procedure rt2500usb_init_registers [2021-11-07 17:11:15,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 17:11:15,812 INFO L130 BoogieDeclarations]: Found specification of procedure rt2500usb_enable_radio [2021-11-07 17:11:15,812 INFO L138 BoogieDeclarations]: Found implementation of procedure rt2500usb_enable_radio [2021-11-07 17:11:15,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 17:12:19,393 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-07 17:12:19,394 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-07 17:12:19,394 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-07 17:12:19,394 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res := 0; [2021-11-07 17:12:19,394 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res := 0; [2021-11-07 17:12:19,395 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-07 17:12:19,396 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 17:12:19,396 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-07 17:12:19,449 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 17:12:19,449 INFO L299 CfgBuilder]: Removed 10683 assume(true) statements. [2021-11-07 17:12:19,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:12:19 BoogieIcfgContainer [2021-11-07 17:12:19,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 17:12:19,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 17:12:19,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 17:12:19,463 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 17:12:19,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:11:06" (1/3) ... [2021-11-07 17:12:19,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b12ef0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:12:19, skipping insertion in model container [2021-11-07 17:12:19,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:11" (2/3) ... [2021-11-07 17:12:19,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b12ef0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:12:19, skipping insertion in model container [2021-11-07 17:12:19,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:12:19" (3/3) ... [2021-11-07 17:12:19,466 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rt2x00-rt2500usb.cil.i [2021-11-07 17:12:19,470 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 17:12:19,470 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 156 error locations. [2021-11-07 17:12:19,538 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 17:12:19,543 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 17:12:19,543 INFO L340 AbstractCegarLoop]: Starting to check reachability of 156 error locations. [2021-11-07 17:12:19,685 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) [2021-11-07 17:12:19,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-11-07 17:12:19,704 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:12:19,705 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:12:19,706 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)] === [2021-11-07 17:12:19,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:12:19,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1921148247, now seen corresponding path program 1 times [2021-11-07 17:12:19,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:12:19,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947682267] [2021-11-07 17:12:19,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:12:19,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:12:20,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:12:20,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:12:20,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:12:20,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947682267] [2021-11-07 17:12:20,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947682267] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:12:20,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:12:20,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:12:20,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118499098] [2021-11-07 17:12:20,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:12:20,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:12:20,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:12:20,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:12:20,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:12:20,706 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) [2021-11-07 17:12:22,816 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:12:23,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:12:23,875 INFO L93 Difference]: Finished difference Result 30441 states and 42507 transitions. [2021-11-07 17:12:23,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:12:23,877 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 [2021-11-07 17:12:23,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:12:23,989 INFO L225 Difference]: With dead ends: 30441 [2021-11-07 17:12:23,990 INFO L226 Difference]: Without dead ends: 20161 [2021-11-07 17:12:24,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.17ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:12:24,029 INFO L933 BasicCegarLoop]: 14555 mSDtfsCounter, 13634 mSDsluCounter, 14498 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2122.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13634 SdHoareTripleChecker+Valid, 29053 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 74.61ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2307.01ms IncrementalHoareTripleChecker+Time [2021-11-07 17:12:24,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13634 Valid, 29053 Invalid, 34 Unknown, 0 Unchecked, 74.61ms Time], IncrementalHoareTripleChecker [7 Valid, 26 Invalid, 1 Unknown, 0 Unchecked, 2307.01ms Time] [2021-11-07 17:12:24,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20161 states. [2021-11-07 17:12:24,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20161 to 19873. [2021-11-07 17:12:24,610 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) [2021-11-07 17:12:24,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19873 states to 19873 states and 27414 transitions. [2021-11-07 17:12:24,672 INFO L78 Accepts]: Start accepts. Automaton has 19873 states and 27414 transitions. Word has length 204 [2021-11-07 17:12:24,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:12:24,678 INFO L470 AbstractCegarLoop]: Abstraction has 19873 states and 27414 transitions. [2021-11-07 17:12:24,679 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) [2021-11-07 17:12:24,679 INFO L276 IsEmpty]: Start isEmpty. Operand 19873 states and 27414 transitions. [2021-11-07 17:12:24,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-11-07 17:12:24,687 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:12:24,687 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:12:24,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 17:12:24,689 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)] === [2021-11-07 17:12:24,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:12:24,691 INFO L85 PathProgramCache]: Analyzing trace with hash -643378217, now seen corresponding path program 1 times [2021-11-07 17:12:24,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:12:24,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693626789] [2021-11-07 17:12:24,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:12:24,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:12:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:12:25,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:12:25,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:12:25,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693626789] [2021-11-07 17:12:25,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693626789] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:12:25,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:12:25,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:12:25,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627428845] [2021-11-07 17:12:25,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:12:25,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:12:25,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:12:25,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:12:25,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:12:25,324 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) [2021-11-07 17:12:27,403 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:12:28,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:12:28,253 INFO L93 Difference]: Finished difference Result 42153 states and 58106 transitions. [2021-11-07 17:12:28,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:12:28,254 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 [2021-11-07 17:12:28,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:12:28,329 INFO L225 Difference]: With dead ends: 42153 [2021-11-07 17:12:28,329 INFO L226 Difference]: Without dead ends: 22780 [2021-11-07 17:12:28,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.22ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:12:28,375 INFO L933 BasicCegarLoop]: 16131 mSDtfsCounter, 8645 mSDsluCounter, 13939 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2243.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8645 SdHoareTripleChecker+Valid, 30070 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.73ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2442.98ms IncrementalHoareTripleChecker+Time [2021-11-07 17:12:28,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8645 Valid, 30070 Invalid, 200 Unknown, 0 Unchecked, 34.73ms Time], IncrementalHoareTripleChecker [15 Valid, 184 Invalid, 1 Unknown, 0 Unchecked, 2442.98ms Time] [2021-11-07 17:12:28,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22780 states. [2021-11-07 17:12:29,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22780 to 22500. [2021-11-07 17:12:29,057 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) [2021-11-07 17:12:29,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22500 states to 22500 states and 31057 transitions. [2021-11-07 17:12:29,112 INFO L78 Accepts]: Start accepts. Automaton has 22500 states and 31057 transitions. Word has length 221 [2021-11-07 17:12:29,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:12:29,113 INFO L470 AbstractCegarLoop]: Abstraction has 22500 states and 31057 transitions. [2021-11-07 17:12:29,113 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) [2021-11-07 17:12:29,113 INFO L276 IsEmpty]: Start isEmpty. Operand 22500 states and 31057 transitions. [2021-11-07 17:12:29,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-11-07 17:12:29,117 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:12:29,117 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:12:29,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 17:12:29,118 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)] === [2021-11-07 17:12:29,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:12:29,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1231122208, now seen corresponding path program 1 times [2021-11-07 17:12:29,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:12:29,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396111990] [2021-11-07 17:12:29,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:12:29,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:12:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:12:29,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:12:29,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:12:29,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396111990] [2021-11-07 17:12:29,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396111990] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:12:29,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:12:29,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:12:29,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321586001] [2021-11-07 17:12:29,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:12:29,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:12:29,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:12:29,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:12:29,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:12:29,471 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) [2021-11-07 17:12:31,559 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:12:32,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:12:32,464 INFO L93 Difference]: Finished difference Result 46799 states and 64558 transitions. [2021-11-07 17:12:32,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:12:32,465 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 [2021-11-07 17:12:32,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:12:32,539 INFO L225 Difference]: With dead ends: 46799 [2021-11-07 17:12:32,539 INFO L226 Difference]: Without dead ends: 24799 [2021-11-07 17:12:32,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.17ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:12:32,593 INFO L933 BasicCegarLoop]: 21406 mSDtfsCounter, 8719 mSDsluCounter, 13940 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2255.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8719 SdHoareTripleChecker+Valid, 35346 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.12ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2468.34ms IncrementalHoareTripleChecker+Time [2021-11-07 17:12:32,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8719 Valid, 35346 Invalid, 200 Unknown, 0 Unchecked, 29.12ms Time], IncrementalHoareTripleChecker [15 Valid, 184 Invalid, 1 Unknown, 0 Unchecked, 2468.34ms Time] [2021-11-07 17:12:32,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24799 states. [2021-11-07 17:12:33,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24799 to 24513. [2021-11-07 17:12:33,072 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) [2021-11-07 17:12:33,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24513 states to 24513 states and 33849 transitions. [2021-11-07 17:12:33,148 INFO L78 Accepts]: Start accepts. Automaton has 24513 states and 33849 transitions. Word has length 222 [2021-11-07 17:12:33,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:12:33,149 INFO L470 AbstractCegarLoop]: Abstraction has 24513 states and 33849 transitions. [2021-11-07 17:12:33,149 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) [2021-11-07 17:12:33,149 INFO L276 IsEmpty]: Start isEmpty. Operand 24513 states and 33849 transitions. [2021-11-07 17:12:33,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-07 17:12:33,153 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:12:33,153 INFO L514 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] [2021-11-07 17:12:33,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 17:12:33,154 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)] === [2021-11-07 17:12:33,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:12:33,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1729715430, now seen corresponding path program 1 times [2021-11-07 17:12:33,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:12:33,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272909242] [2021-11-07 17:12:33,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:12:33,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:12:33,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:12:33,571 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:12:33,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:12:33,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272909242] [2021-11-07 17:12:33,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272909242] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:12:33,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:12:33,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:12:33,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383621547] [2021-11-07 17:12:33,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:12:33,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:12:33,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:12:33,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:12:33,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:12:33,574 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) [2021-11-07 17:12:35,655 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:12:36,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:12:36,474 INFO L93 Difference]: Finished difference Result 70443 states and 97576 transitions. [2021-11-07 17:12:36,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:12:36,475 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 [2021-11-07 17:12:36,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:12:36,623 INFO L225 Difference]: With dead ends: 70443 [2021-11-07 17:12:36,624 INFO L226 Difference]: Without dead ends: 47382 [2021-11-07 17:12:36,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.36ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:12:36,694 INFO L933 BasicCegarLoop]: 27550 mSDtfsCounter, 13456 mSDsluCounter, 14075 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2110.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13456 SdHoareTripleChecker+Valid, 41625 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.22ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2287.44ms IncrementalHoareTripleChecker+Time [2021-11-07 17:12:36,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13456 Valid, 41625 Invalid, 32 Unknown, 0 Unchecked, 30.22ms Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 2287.44ms Time] [2021-11-07 17:12:36,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47382 states. [2021-11-07 17:12:37,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47382 to 47073. [2021-11-07 17:12:37,914 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) [2021-11-07 17:12:38,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47073 states to 47073 states and 65421 transitions. [2021-11-07 17:12:38,018 INFO L78 Accepts]: Start accepts. Automaton has 47073 states and 65421 transitions. Word has length 234 [2021-11-07 17:12:38,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:12:38,018 INFO L470 AbstractCegarLoop]: Abstraction has 47073 states and 65421 transitions. [2021-11-07 17:12:38,019 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) [2021-11-07 17:12:38,019 INFO L276 IsEmpty]: Start isEmpty. Operand 47073 states and 65421 transitions. [2021-11-07 17:12:38,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-07 17:12:38,023 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:12:38,023 INFO L514 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] [2021-11-07 17:12:38,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 17:12:38,023 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)] === [2021-11-07 17:12:38,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:12:38,024 INFO L85 PathProgramCache]: Analyzing trace with hash -449851752, now seen corresponding path program 1 times [2021-11-07 17:12:38,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:12:38,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763179712] [2021-11-07 17:12:38,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:12:38,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:12:38,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:12:38,338 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:12:38,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:12:38,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763179712] [2021-11-07 17:12:38,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763179712] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:12:38,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:12:38,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:12:38,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566924235] [2021-11-07 17:12:38,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:12:38,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:12:38,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:12:38,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:12:38,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:12:38,350 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) [2021-11-07 17:12:40,430 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:12:41,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:12:41,634 INFO L93 Difference]: Finished difference Result 115559 states and 160712 transitions. [2021-11-07 17:12:41,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:12:41,634 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 [2021-11-07 17:12:41,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:12:41,941 INFO L225 Difference]: With dead ends: 115559 [2021-11-07 17:12:41,941 INFO L226 Difference]: Without dead ends: 69938 [2021-11-07 17:12:42,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.24ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:12:42,024 INFO L933 BasicCegarLoop]: 27550 mSDtfsCounter, 13442 mSDsluCounter, 14088 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2093.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13442 SdHoareTripleChecker+Valid, 41638 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.15ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2262.62ms IncrementalHoareTripleChecker+Time [2021-11-07 17:12:42,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13442 Valid, 41638 Invalid, 30 Unknown, 0 Unchecked, 25.15ms Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 1 Unknown, 0 Unchecked, 2262.62ms Time] [2021-11-07 17:12:42,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69938 states. [2021-11-07 17:12:43,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69938 to 69650. [2021-11-07 17:12:43,318 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) [2021-11-07 17:12:43,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69650 states to 69650 states and 97010 transitions. [2021-11-07 17:12:43,716 INFO L78 Accepts]: Start accepts. Automaton has 69650 states and 97010 transitions. Word has length 234 [2021-11-07 17:12:43,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:12:43,717 INFO L470 AbstractCegarLoop]: Abstraction has 69650 states and 97010 transitions. [2021-11-07 17:12:43,717 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) [2021-11-07 17:12:43,718 INFO L276 IsEmpty]: Start isEmpty. Operand 69650 states and 97010 transitions. [2021-11-07 17:12:43,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-11-07 17:12:43,722 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:12:43,722 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:12:43,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 17:12:43,722 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)] === [2021-11-07 17:12:43,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:12:43,723 INFO L85 PathProgramCache]: Analyzing trace with hash 857677723, now seen corresponding path program 1 times [2021-11-07 17:12:43,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:12:43,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866044967] [2021-11-07 17:12:43,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:12:43,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:12:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:12:44,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:12:44,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:12:44,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866044967] [2021-11-07 17:12:44,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866044967] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:12:44,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:12:44,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:12:44,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791081561] [2021-11-07 17:12:44,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:12:44,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:12:44,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:12:44,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:12:44,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:12:44,128 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) [2021-11-07 17:12:46,213 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:12:48,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:12:48,327 INFO L93 Difference]: Finished difference Result 196424 states and 273834 transitions. [2021-11-07 17:12:48,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:12:48,328 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 [2021-11-07 17:12:48,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:12:48,654 INFO L225 Difference]: With dead ends: 196424 [2021-11-07 17:12:48,654 INFO L226 Difference]: Without dead ends: 127274 [2021-11-07 17:12:48,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.58ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:12:48,754 INFO L933 BasicCegarLoop]: 14106 mSDtfsCounter, 12298 mSDsluCounter, 14063 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2130.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12298 SdHoareTripleChecker+Valid, 28169 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.79ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2303.45ms IncrementalHoareTripleChecker+Time [2021-11-07 17:12:48,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12298 Valid, 28169 Invalid, 66 Unknown, 0 Unchecked, 23.79ms Time], IncrementalHoareTripleChecker [16 Valid, 49 Invalid, 1 Unknown, 0 Unchecked, 2303.45ms Time] [2021-11-07 17:12:48,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127274 states. [2021-11-07 17:12:50,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127274 to 126847. [2021-11-07 17:12:51,163 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) [2021-11-07 17:12:51,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126847 states to 126847 states and 176972 transitions. [2021-11-07 17:12:51,762 INFO L78 Accepts]: Start accepts. Automaton has 126847 states and 176972 transitions. Word has length 235 [2021-11-07 17:12:51,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:12:51,762 INFO L470 AbstractCegarLoop]: Abstraction has 126847 states and 176972 transitions. [2021-11-07 17:12:51,763 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) [2021-11-07 17:12:51,763 INFO L276 IsEmpty]: Start isEmpty. Operand 126847 states and 176972 transitions. [2021-11-07 17:12:51,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-11-07 17:12:51,766 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:12:51,766 INFO L514 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] [2021-11-07 17:12:51,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 17:12:51,767 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)] === [2021-11-07 17:12:51,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:12:51,767 INFO L85 PathProgramCache]: Analyzing trace with hash -528659326, now seen corresponding path program 1 times [2021-11-07 17:12:51,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:12:51,768 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433698349] [2021-11-07 17:12:51,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:12:51,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:12:52,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:12:52,747 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 17:12:52,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:12:52,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433698349] [2021-11-07 17:12:52,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433698349] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:12:52,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:12:52,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 17:12:52,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576018657] [2021-11-07 17:12:52,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:12:52,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:12:52,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:12:52,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:12:52,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:12:52,750 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) [2021-11-07 17:12:58,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:12:58,564 INFO L93 Difference]: Finished difference Result 126847 states and 176972 transitions. [2021-11-07 17:12:58,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:12:58,565 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 [2021-11-07 17:12:58,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:12:58,845 INFO L225 Difference]: With dead ends: 126847 [2021-11-07 17:12:58,845 INFO L226 Difference]: Without dead ends: 126841 [2021-11-07 17:12:58,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.60ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:12:58,900 INFO L933 BasicCegarLoop]: 14030 mSDtfsCounter, 9757 mSDsluCounter, 17921 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3657.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9757 SdHoareTripleChecker+Valid, 31951 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 43.98ms SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4203.98ms IncrementalHoareTripleChecker+Time [2021-11-07 17:12:58,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9757 Valid, 31951 Invalid, 395 Unknown, 0 Unchecked, 43.98ms Time], IncrementalHoareTripleChecker [83 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 4203.98ms Time] [2021-11-07 17:12:59,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126841 states. [2021-11-07 17:13:01,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126841 to 126841. [2021-11-07 17:13:01,626 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) [2021-11-07 17:13:01,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126841 states to 126841 states and 176966 transitions. [2021-11-07 17:13:01,889 INFO L78 Accepts]: Start accepts. Automaton has 126841 states and 176966 transitions. Word has length 235 [2021-11-07 17:13:01,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:13:01,889 INFO L470 AbstractCegarLoop]: Abstraction has 126841 states and 176966 transitions. [2021-11-07 17:13:01,889 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) [2021-11-07 17:13:01,890 INFO L276 IsEmpty]: Start isEmpty. Operand 126841 states and 176966 transitions. [2021-11-07 17:13:01,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-11-07 17:13:01,892 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:13:01,893 INFO L514 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] [2021-11-07 17:13:01,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 17:13:01,893 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)] === [2021-11-07 17:13:01,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:13:01,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1235088091, now seen corresponding path program 1 times [2021-11-07 17:13:01,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:13:01,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276191156] [2021-11-07 17:13:01,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:13:01,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:13:02,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:13:02,501 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 17:13:02,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:13:02,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276191156] [2021-11-07 17:13:02,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276191156] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:13:02,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:13:02,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 17:13:02,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264552328] [2021-11-07 17:13:02,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:13:02,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:13:02,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:13:02,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:13:02,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:13:02,504 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) [2021-11-07 17:13:04,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:13:04,874 INFO L93 Difference]: Finished difference Result 126841 states and 176966 transitions. [2021-11-07 17:13:04,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:13:04,875 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 [2021-11-07 17:13:04,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:13:05,109 INFO L225 Difference]: With dead ends: 126841 [2021-11-07 17:13:05,109 INFO L226 Difference]: Without dead ends: 126835 [2021-11-07 17:13:05,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.14ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:13:05,156 INFO L933 BasicCegarLoop]: 14096 mSDtfsCounter, 13877 mSDsluCounter, 14075 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 120.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13877 SdHoareTripleChecker+Valid, 28171 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.48ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 139.86ms IncrementalHoareTripleChecker+Time [2021-11-07 17:13:05,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13877 Valid, 28171 Invalid, 35 Unknown, 0 Unchecked, 24.48ms Time], IncrementalHoareTripleChecker [14 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 139.86ms Time] [2021-11-07 17:13:05,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126835 states.